Among the commonly used white pigments,titaniaThe relative density of titanium dioxide is the smallest among white pigments of the same qualitySurface areaLargest, highest pigment volume.
2. Melting and boiling points
Because anatase will change intorutileType, soanatase titanium dioxide The melting and boiling points of are virtually nonexistent.Only rutile titanium dioxide has a melting point and boiling point. The melting point of rutile titanium dioxide is 1850 ℃, and the melting point in air is (1830 ± 15) ℃Oxygen enrichmentThe melting point is 1879 ℃, which is related to the purity of titanium dioxide.The boiling point of rutile titanium dioxide is (3200 ± 300) ℃, and the titanium dioxide is slightlyvolatility。
Because of its high dielectric constant, titanium dioxide has excellent electrical properties.In the determination of somephysical propertyTitanium dioxide shall be consideredcrystalDirection of crystallization.The dielectric constant of anatase titanium dioxide is relatively low, only 48.
Titanium dioxide has the properties of semiconductor, its conductivity increases rapidly with the rise of temperature, and it is also very sensitive to hypoxia.The relationship between dielectric constant and semiconductor properties of rutile titanium dioxideelectronics industryVery important, which can be used to produceCeramic capacitoretc.Electronic components。
5. Hardness
PressMohs hardnessTenth systemScale: rutile titanium dioxide is 6~6.5, anatase titanium dioxide is 5.5~6.0, sochemical fiberextinctionIn order to avoid abrasion of the spinneret hole, the anatase type is used.
Although titanium dioxide hasHydrophilicityHowever, its hygroscopicity is not very strong, and rutile type is smaller than anatase type.The hygroscopicity of titanium dioxide is related to its surface area. Its large surface area, high hygroscopicity andsurface treatmentIt is related to the nature.
Titanium dioxide is a material with good thermal stability.
8. Particle size
Titanium dioxideParticle size distributionIt is a comprehensive indicator, which seriously affects the performance of titanium dioxide pigment and product application performanceCovering powerandDispersityThe discussion of can be directly analyzed from the particle size distribution.
The factors affecting the particle size distribution of titanium dioxide powder are complex. First, the size of the original particle size of hydrolysis is controlled and adjusted to make the original particle size within a certain range.The second iscalcinationTemperature,Metatitanic acidIn the process of calcination, the particles go through a phase of crystal transformation and growth, and control the appropriate temperature to keep the growing particles within a certain range.Finally, the product is crushed, usuallyRaymond MillTransformation andanalyzerSpeed adjustment, control the crushing quality, and other methods can be usedCrushing equipment, such as universal millAirflow millAnd hammering device.
crystal structure
Titanium dioxide has three crystal forms in nature: rutile, anatase and plate titanium.PlateotitaniaOrthorhombic system, is unstableCrystal formIt can be converted to rutile type when the temperature is above 650 ℃, so it has no practical value in industry.The anatase is stable at room temperature, but it will transform to rutile at high temperature.The conversion strength depends on whether there is inhibition oracceleratorAnd other conditions.
It is generally believed that there is almost no crystal transformation below 165 ℃, and the transformation is fast when the temperature exceeds 730 ℃.Rutile type is the most stable crystalline form of titanium dioxide, with dense structure. Compared with anatase type, it has higher hardness, density, dielectric constant andRefractive index。Rutile and anatase belong toTetragonal system, but has a different lattice, soX-rayThe images are also differentDiffraction angleAt 25.5 °, the diffraction angle of rutile type is at 27.5 °.Rutile type crystals are slender and prismatic, usually twins;The anatase is generally approximately regularOctahedron。
rutileCompared with anatase typeUnit latticeIt is composed of two titanium dioxide molecules while anatase is composed of four titanium dioxide molecules, so its unit lattice is small and compact, so it has greater stability and relative density, so it has higherRefractive indexAnd dielectric constant and low thermal conductivity.
Three types of titanium dioxideIsomerOnly rutile is the most stable, and only rutile can be obtained through thermal conversion.naturalBrookiteWhen the temperature is above 650 ℃, it will be converted to rutile type,anataseIt can also transform to rutile type at about 915 ℃.
Emergency Management：Isolate the leakage contaminated area and restrict access.It is recommended that emergency handling personnel wearDust mask（Full face mask）, wear general workcoverall。Avoid flying dust, sweep it carefully, put it in a bag and transfer it to a safe place.In case of large leakage, useplastic sheeting, covered with canvas.Collect, recycle or transport towaste disposalSite disposal.
Titanium dioxide (or titanium dioxide) is widely used in various structural surface coatings, paper coatings and fillers, plasticselastomerOther applications include ceramics, glass, catalysts, coated fabricsPrinting ink, roof granulation andflux。According to statistics, the global demand for titanium dioxide in 2006 reached 4.6 million tons, of which the coating industry accounted for 58%, the plastic industry accounted for 23%, the paper industry accounted for 10%, and other 9%.Titanium dioxide is availableilmenite、rutilePreparation, also availableTitanium slagPreparation.Titanium dioxideProduction processThere are two types:sulfateProcess andchlorideThe technology of sulfate method is simpler than that of chloride method, and minerals with lower grade and cheaper price can be used.Today, about 47% of the world's production capacity uses the sulfate process, and 53% of the production capacity is the chloride process.
The simplest way is to compare the hand feeling. The fake titanium dioxide is slippery, and the real titanium dioxide is astringent.
two
Water wash, a little titanium dioxide on your hand, it's easy to wash off fake ones, but not really easy to wash off.
three
Take a glass of clean water and throw titanium dioxide into it. If it floats up, it is true, and if it settles down, it is false (if it is an activated product, it will not work).
Chemical method:
one
Adding light calcium or heavy calcium: adding dilute sulfuric acid or hydrochloric acid, bubbles can make the clarified lime water turbid, because calcium carbonate will react with acid to produce carbon dioxide.
two
AdulteratedLithopone: Add dilute sulfuric acid or hydrochloric acid, which has rotten egg smell.
three
It is made into latex paint with iron red and dark color, indicating that the titanium dioxide with poor hiding power is false or of poor quality.
There are also two better methods:
one
Use the same PP+30% GF+5% PP-G-MAH+0.5% titanium dioxide, the lower the strength, the titanium dioxide（rutile）The more true.
two
Select a transparent resin, such as transparent ABS+0.5% titanium dioxide, and measure the light transmittance. The lower the light transmittance, the truer the titanium dioxide.
Production process
There are two manufacturing methods of titanium dioxide: sulfuric acid process andChlorination method（Chloride Process）。56% of them are chlorinated products, and more than 70% of these products are produced in the United StatesDuPontTitanium dioxide factories in other countries, including China, are still dominated by sulfuric acid process.
【one】Sulfuric acid process
Mix ferrotitanium powder withconcentrated sulfuric acidConduct acidolysis reaction productionTitanium oxysulfateAfter hydrolysis, metatitanic acid is generated, and then calcined and crushed to obtain titanium dioxide products.This method can produce anatase andRutile titanium dioxide。The advantages of sulfuric acid method are that it can use low-cost ilmenite and sulfuric acid as raw materials, with mature technology, simple equipment and easy solution of anti-corrosion materials.The disadvantage is that the process is long, and onlyIntermittent operationMainly wet operation, high consumption of sulfuric acid and water, many wastes and by-products, and great environmental pollution.
【2】 Chlorination method
The chlorination method uses titanium containing raw materials to chlorinateHigh titanium slag, orArtificial rutile, ornatural rutile EquivalencychlorineReaction generation IVTitanium chloride, viarectificationPurification and then gas phase oxidation;After rapid cooling, TiO is obtained through gas-solid separationtwo。The TiOtwoBecause a certain amount of chlorine is adsorbed, it needs to be heated or steam treated to remove it.The process is simple, but there are many chemicals for chlorination at 1000 ℃ or higherEngineering problemsE.g. chlorine, chlorineoxideThe high corrosion of titanium tetrachloride needs to be solved. In addition, the raw materials used are special, and the cost is higher than that of sulfuric acid process.Chlorination production iscontinuous production , the flexibility of production device operation is not largeProduction loadIt is not easy to adjust, but its continuous production process is simple and technologicalcontrol pointLess,product qualityIt is easy to achieve optimal control.In addition, there is no sintering formed by rotary kiln calcination process, and its TiOtwoPrimary particles are easy to depolymerize, so people are used to thinking that the quality of chlorinated titanium dioxide products is better.The advantages of chlorination method are short process,throughputEasy to expand, continuousDegree of automationHigh, relatively low energy consumption“Three wastes”Less, can getHigh quality products。Its disadvantages are large investment, complex equipment structure, high requirements for materials, high temperature resistance and corrosion resistance, and difficult maintenance of devices,Research and developmentDifficult.
In order to solve the high cost, later inventedHigh titanium powder、Lithopone、Forging white powderHowever, its comprehensive performance is inferior to that of titanium dioxide, and the widely used high titanium powder can partially replace titanium dioxide.
China's titanium dioxide industry began in the mid-1950s.
Chinese name:titaniumWhite powder English name: titanium oxidetitania（TiOtwo）White pigment.With the continuous development of titanium dioxide industry, more and more brands are recognized by people,data displayChina's total production capacity of titanium dioxide accounts for 30% of the world's total, making it the world's largest titanium dioxideCountry of productionIn 2011, the total production capacity of titanium dioxide in China was about 2.6 million tons.
In addition, China has also become the world's largest consumer of titanium dioxide. From 1999 to 2011, China's titanium dioxideConsumptionFrom 248 thousand tons/year to 165 thousand tons/year,CAGR17.11%, far more thangross domestic productGrowth rate.
Used in paint systemGR composite titanium white pigmentIt can be limited to the same or similar titanium dioxideperformance index ；GR composite titanium dioxide pigment can be widely used in paint systems to improve the performance of the paint and significantly reduce theUsage costTitanium dioxide industry in China in 2011total imports and exportsUS $1.858 billion, includingImport volume$704 million,Year on year growth9.22%;ExportsUS $1.155 billion, up 122.58% year on year;In 2011, international trade of titanium dioxide appeared for the first timesurplusThe surplus was $451 million. In 2011, the total import of titanium dioxide nationwide was 200000 tons, 69000 tons less than the previous year,growth rate- 25.65%;The total export volume of titanium dioxide was 380000 tons, an increase of 114000 tons over the previous year, with a growth rate of 42.86%.
The net export volume reached 180000 tons.This shows that the quality of domestic titanium dioxide has been improved, which can meet the demand of most downstream products in China. While replacing some imported products, it also increases the export volume.
application area
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Main components of titanium dioxideapplication area : paint, plastic, inkpapermakingOf which paint accounts for 60%, plastic 20%, paper 14%, others (including cosmeticschemical fiber, electronics, ceramicsenamel, welding rod, alloy, glass and other fields) accounting for 6%.
Titanium dioxide inrubberExisting actions in the industryColorantIt also has the functions of reinforcement, anti-aging and filling.In white and colorRubber productsTitanium white powder is added in, which is resistant to sunlight, cracking, discoloration, high elongation and acid and alkali under sunlight.Titanium dioxide for rubber, mainly used forAutomobile tireas well asRubber overshoes、Rubber floor, glovesSports equipmentIt is mainly anatase.But for automobile tiresoutputA certain amount of rutile products are often added to enhance the ozone resistance andultraviolet raysAbility.
Titanium dioxide is also widely used in cosmetics.As titanium dioxide is non-toxicLead whiteSuperior, variousFragrant powderAlmost all use titanium dioxide to replace lead white andZinc white。Only 5% - 8% titanium dioxide can be added into the perfume powder to get permanent white, making the perfume more smoothadhesion, absorption andCovering power。In gouache andCold frostMedium titanium dioxide can reduce greasy and transparent feeling.Other spicessunscreen creamTitanium dioxide can also be used in soap, white soap and toothpaste.
1、 Cosmetic grade titanium dioxide is divided into oily and water-based titanium dioxide.Because of itchemical propertystable,Refractive indexHighOpacityWith high covering power, good whiteness and no toxicity, it is widely used in the cosmetics field to beautify and whiten.
【1】 Performance characteristics：
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High whiteness, strong hiding power.
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Hydrophilic and oleophilic products It overcomes the defects of ordinary titanium dioxide in their respective dispersion systems, such as being difficult to disperse and easy to precipitate, and significantly improves its dispersibility and anti precipitation, making your product more stable and satisfactory.
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Strong weather resistance.
four
Good compatibility with other cosmetics materials.
【2】 Purpose
Titanium dioxide is considered as a white pigment with the best performance in the world, widely used in coatings, plastics, paper makingPrinting ink, chemical fiber, rubber, cosmetics and other industries.
Titanium dioxide (titanium dioxide) has stable chemical properties and generally does not react with most substances.In nature, titanium dioxide has three kinds of crystals: plate titanium, anatase and rutile.The titanium plate is unstableCrystal formIt has no industrial use value. Anatase is referred to as type A, and rutile is referred to as type R. Both have stable crystal lattice, and are important white pigments and porcelain glazes. Compared with other white pigments, they have superior whitenessColouring force, covering powerWeatherability、Heat resistance, andchemical stability, especially without toxicity.
Titanium dioxide is widely used in coatings, plastics, rubber, ink, paper, chemical fiber, ceramics, daily chemicals, medicine, food and other industries.
Coating industry is the largest user of titanium dioxide, especiallyRutile titanium dioxide, most of which are consumed by the coating industry.The paint made of titanium dioxide has bright colors, high hiding power, strong coloring power, low consumption and many varieties. It can protect the stability of the medium and enhance themechanical strengthAnd adhesion, prevent cracks, prevent ultraviolet ray and moisture penetration, and extend the service life of the paint film.
The plastic industry is the secondLarge usersAdding titanium dioxide into plastics can improve the heat resistanceLightfastness, weather resistancephysical chemistryThe performance is improved, the mechanical strength of the product is enhanced, and the service life is extended.
The papermaking industry is the third largest user of titanium dioxide, which is mainly used in high-grade paper and thin paper as paper filler.When titanium dioxide is added to the paper, it can make the paper have better whiteness, good gloss, high strength, thin and smooth, no penetration during printing, and light weight.Titanium dioxide for paper making is generally used withoutsurface treatmentOfAnatase titanium dioxide, can playFluorescent brightenerThe role of increasing the whiteness of the paper.butLaminationRutile titanium dioxide with surface treatment is required for paper to meetLightfastnessRequirements for heat resistance.
Titanium dioxide is also an indispensable white pigment in advanced inks.The ink containing titanium dioxide is durable and does not change colorWettabilityGood, easy to disperse.Titanium dioxide used in the ink industry includes rutile and anatase.
Textile andChemical fibreIndustry is another important application field of titanium dioxide.Titanium dioxide for chemical fiber is mainly used asMatting agent。Since the anatase type is softer than the golden red type, the anatase type is generally used.Titanium dioxide for chemical fiber generally does not need surface treatment, but some special varieties are used to reduce thephotochemical action To avoid the degradation of the fiber under the action of titanium dioxide photocatalysis, surface treatment is required.
Enamel industry is an important application field of titanium dioxide,Enamel grade titanium dioxideIt has high purity, good whiteness, fresh color, uniform particle size, strong refractive index and highAchromatic power, with strong turbidity andOpacityTo make the coating thin, smooth andAcid resistanceStrong, in enamelmanufacturing processIntermediate energy andOther materialsIt has the advantages of uniform mixing, non caking, easy melting, etc.
Ceramic industry is also an important application field of titanium dioxide,Ceramic grade titanium dioxideIt has high purity, uniform particle size, high refractive index and excellentHigh temperature resistanceThe ash is kept unchanged for 1 hour at 1200 ℃.With high opacity, thin coating and light weight, it is widely used in ceramics, architecture, decoration and other materials.
Industry status
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Status of coating industry
1. Large quantity and small scale
As the coating production has the characteristics of less investment and quick effectnational economyWith the development of, township enterprises, private enterprises and foreign enterprises all over the country quickly entered the coating industry.According to incomplete statistics, now more than 8000 coating enterprises in China are mainly concentrated inChangjiang delta、Pearl River DeltaandBohai Rim。Among them“Foreign brands”And domestic large-scale manufacturers,market positioningIn the middle and high-end products, in the marketLeadership, guide coatingConsumption trend。Many other domestic small and medium-sized coating enterprises are mainly engaged in the production of low-grade coating products, and are in a market following position.
4. Lack of high-quality products Excess of low-quality products
5. No decrease in paint demand
Plastic industry
financial crisisThe outbreak ofplastics industryIt's almost fatal.Plastic toys、Artificial leatherThe export of plastic products, such as packaging and silk rope, shrank rapidly, leading to the closure of a large number of plastic production enterprises.Chinese plasticsIndustry Association2009 plasticIndustry reportDisplay: 1/4 plasticEnterprise losses。The actual situation is probably much worse than the statistics, such as PVC（polyvinyl chloride）The production enterprises suffered losses in the whole industry.All kinds of signs indicate that China's plastic industry is facing aBig examIf you fail, the consequences will be unimaginable.Among them, the joint efforts of the government and enterprises are crucial.
In June 2010, China andGulf Cooperation CouncilstaySaudi ArabiacapitalRiyadhOngoingfree trade areaMany plastic enterprises were relieved by the negotiation results. China did not join the SCO in the end, which most worried Chinese enterprisesMiddle EastThe new 5Large ethyleneThe production project was not actually put into production.
It is understood that in 2009Middle EastThere will be 5 newethyleneCommissioning of cracking project, mainly includingethaneEthylene produced by.After the five major projects are put into operation, Middle East EthyleneAnnual production capacityIt will increase from 16.9 million tons in 2008 to 28.1 million tons in 2012.The ethylene production capacity in the Middle East will increase by 7.1 million tons in 2009, of whichSaudi ArabiaThe new capacity will exceed 4 million tons/year,IranThe new capacity exceeds 1 million tons/year,KuwaitThe new capacity is 850000 tons/year,QatarThe new capacity is 975000 tons/year.These five ethylene cracking projects only have preliminary intentions. After reaching the intentions, they have not been actually put into production due to the impact of the crisis. The specific date for putting into production has not yet been set, so the price of ethylene imported by China has not plummeted.However, low-cost plastic products in the Middle East are still the sword of Damocles hanging over Chinese enterprises.
The growth rate of annual consumption and production of domestic paper and paperboard from 1997 to 2010GDP growth rateIt can be seen from the comparison that the growth rate of the annual consumption and production of paper and paperboard fluctuates greatly, and both maintain a very similar growth trend.Compared with the growth rate of China's GDP, the growth rate of annual consumption and production of paper and paperboard has been at a relatively high level since 2002. It can be said that China's paper industry is in a period of rapid growth.
Market supply
The common concern in the industry is that domestic manufacturers are in highProsperityAnd expand production in large quantities.However, our analysis shows that the situation is not as serious as expected.The distribution of new capacity is 700000 tons in 2010, 180000 tons in 2011 and 320000 tons in 2012.The production capacity in 2010 was the largest, and 530000 tons were put into production in the second half of the year.However, the sharp rise in the price of titanium dioxide also happened in the second half of the year, which shows that the sharp increase in supply has not reversed the general trend of the industry's prosperity.The capacity input in the next two years is very moderate compared with that in the next 10 years, so we judge that the tight situation of supply and demand in the industry will become increasingly serious, rather than easing.
Chlorination methodShort processContinuity methodTechnology, theoryOperation rateIt can reach 90%.butcore technology They are in the hands of several international giants and are difficult to transfer.In China, only Jinzhou Titanium Industry has a capacity of 30000 tons, and it is very difficult for other manufacturers to expand their production by chlorination.The sulfuric acid process is a batch process because it is produced in a strong acid environment.The operating rate in the world is 80%, but it is generally about 70% in China.
1. Pay attention to the relationship between scale and efficiency.
Through continuous expansion, titanium dioxide enterprises can bring various tangible and intangible scales to enterprises, which canfixed costGet a wider range of allocation, so that the enterprise'srisk aversion The ability has been improved more effectively, so that enterprises are in a more favorable position in bargaining with suppliers.However, the expansion of scale does not mean the natural increase of benefits. Titanium dioxideEnterprise benefitsThe improvement ofmanagement ideaUpdates andquality of personnelImprovement.The essence is not simply to pursue scale, but benefit, which comes from scale and more from scientific management.Domestic titanium dioxide enterprises shouldCategory Management 、inventory management , goods and servicesCombinatorial optimizationLogistics optimization, procurement channel optimizationPrivate brandDevelopment and other aspectsContinuous improvementoperating performance 。
2. Develop a reasonable layout and carry out strategic diffusion to the mainland.
3. Choose a business type suitable for your own strengthDevelopment modeWe should give full play to our advantages of being familiar with the national conditions and close to the people.
In the past, China has mainly used sulfuric acid anatase titanium dioxide to turn to rutile titanium dioxide. The production capacity of rutile titanium dioxide has exceeded 70%, and this proportion is still increasing, but the products are still concentrated in the middle and low grades, and high-end titanium dioxide still relies on a large number of importsproduct qualityIt is still several large titanium dioxide enterprises that have obvious advantages.In addition, there are only 30000 tons of chlorinated titanium dioxide products in the country, which is insignificant in the total of 1.47 million tons. In the next step, four or five enterprises plan to develop chlorinated titanium dioxide business, and the planned production capacity will reach 600000 tons. Therefore, this period is to transform the product structure, improve China's technical levelImported technologyAnd digest thecritical period。
2. Energy saving and emission reduction and improvement of environmental protection
Energy conservation and emission reductioncleaner production 、protect the environmentTo achieve sustainable development is a nationalThe 12th Five Year PlanClear tasks proposed.In view of the characteristics of titanium resources in China, the current situation of titanium dioxide industry and the difficulty in developing and importing chlorinated titanium dioxide technology, titanium dioxide will beIndustrial developmentIt will still focus on the sulfuric acid process. How to effectively use the waste and byproducts produced by the sulfuric acid process and guide and standardize the enterprisecircular economyIn terms of development path, the state and industry organizations are actively working to promote enterprises to take the road of circular economy from policies and regulations.In this process, some enterprises that fail to meet the standards will be eliminated, which will bring greater pressure to the survival of enterprisesSocial responsibilityIs perfect for enterprisesIndustrial layoutAnd a good time to improve the competitiveness.
The apparent consumption of titanium dioxide in China is growing at an average annual rate of 14%. In 2011, the apparent consumption was 1.64 million tons. It is estimated that the apparent consumption of titanium dioxide in 2012 will reach 1.87 million tons. China has become the world's largest producer and consumer of titanium dioxide.As of June 30, 2012, China's annual production capacity of titanium dioxide has reached nearly 2.8 million tons.There are 25 projects under construction, planned and expanded nationwide
If“the 13th Five-Year plan”At the initial stage, if China can reach the per capita consumption of 2kg titanium dioxidemarket demandAbout 2.9 million tons, if developed countries are consideredIndustrial transferAnd other factors, China's market production may reach 3.5 million tons.By 2020, China's market production and consumption will reach 4 million to 4.5 million tonsWestern EuropeOfaverageIf the weight is 3.6 kg, the demand for titanium dioxide will reach 5.2 million tons.
In the long run, the 12th Five Year PlanChina's GDPEconomic growth targetIt is set at 7%, and the main application field of titanium dioxide isbasic industry ——Construction, real estate, automobiles, daily necessities, etc. will grow with the development of the national economy.It is predicted that by 2015, the total production capacity of titanium dioxide in China will reach 3.4 million to 3.5 million tons, including 2.7 million to 2.8 million tons of rutile titanium dioxide.Titanium dioxide in some middle and high end application fields, such as special papermaking titanium dioxide, food grade titanium dioxide, daily chemical titanium dioxide, high-end coating titanium dioxide and deep processing products of titanium dioxide, will certainly be developed, which will put forward new demand for titanium dioxide and become a new growth point in the next period.
Pigment industry
Chinese alias: C1. Pigment white 6;Titanium white；Titanium white pigment 0-520
Titanium dioxide pigment is selected for its structure, appearance andParticle size distributionInorganic powder similar to titanium white and having reactive activity on the surface as the basic raw material (core),TiOtwoIt is a coated material, which is prepared by new material modification, composite preparation, inorganic coating, powder homogenization and other technologiesHydroxylationModification and machineryMechanochemical reactionA new type of composite white pigment prepared by the same method.It has the same or similar physical and chemical properties as titanium dioxide, so it has the properties of titanium dioxide pigment.It is widely used in paint, plastic, rubber and ink industries, and can obtain the sameTechnical performanceAnd greatly reduce the use cost of raw materials.
1. The preparation technology of titanium dioxide pigment has reached the international advanced level. The selection of core coating material, the surface hydroxylation of core coating material and coating material, and the composite white pigment have the characteristics similar to or the same performance as titanium dioxide.
2. The surface of titanium dioxide pigment particles is crystalline TiOtwoPerformance, crystal type is divided into rutile type and anatase type, so the product has the same or similar performance with titanium dioxide, such as hiding power, whitenessOil absorptionEtc.
3. Ratio of titanium dioxide pigment to titanium dioxide: particle sizeParticle size distributionBetter. Heterogeneous properties and low density of the composite make the product better used in the paint systemDispersityandApplicability。
4、Consumption costIt is significantly lower than titanium dioxide,Product costLess than 3000-5000 yuan/ton of titanium dioxide.
The covering performance of paint is the most direct and key indicator reflecting the performance of white pigment. On the premise that other components and conditions of paint are the same, the stronger the covering power of paint is, the stronger the covering performance of paint is.
2. Titanium dioxide pigmentsultravioletAbsorption shielding performance of
Mix GR composite titanium dioxide pigment (rutile type) and rutile titanium dioxide (R818) with water to form 0.2%SuspensionAfter ultrasonic dispersion for 20 minutes, sample and put into 72 type ultraviolet andVisible spectrophotometerTest the light transmittance of the product to judge the absorption of ultraviolet light.
The suspension composed of titanium dioxide pigment, rutile titanium dioxide and water respectively affects theTransmissivityIt is basically consistent with the rule that the UV transmittance of wavelength less than 400nm is extremely lowincident lightWith the increase of wavelength, the light transmittance of the suspension increases significantly, reaching more than 40% at 700 nm.Because the difference in the transmissivity of the suspension can be approximately attributed to the factors of the solid matter itself, it is believed that titanium dioxide pigment has a strong absorption and shielding effect on ultraviolet light compared with rutile titanium dioxide.
The absorption and shielding effect of rutile titanium dioxide on ultraviolet ray is the embodiment of its best chemical stability and good anti-aging, anti chalking and anti discoloration properties. The similar optical properties of titanium dioxide pigment show that it also has anti-aging and other light stability properties.
From the above two experiments, it can be seen that the use of titanium dioxide pigment in the paint system can limit the same or similar performance indicators as titanium dioxide;Titanium dioxide pigments can be widely used in paint systems to improve the performance of coatings and greatly reduce the cost of materials.
Physicochemical properties
(Physical Properties)
1、TiOtwo（W%）：≥90；
2. Whiteness (compared with standard sample): ≥ 98%;
1. Rutile type titanium dioxide: combining the experience of quality control in the production of rutile type titanium dioxide by sulfuric acid process, it integrates innovative research in inorganic coating, organic treatment, salt treatment, calcination control, hydrolysis and product application, and adopts advanced color phase and particle size control, zirconium silicon aluminum phosphorus multi-component inorganic coating and new organic treatment technology.The developed new generation of high-grade universal (water biased) rutile titanium dioxide is suitable for variousArchitectural coatings、Industrial paint、Anticorrosive paint, inkpowder coating And other industries.
2. Anatase titanium dioxide: Anatase titanium dioxide, namely type A titanium dioxide, has two crystal forms: rutile and anatase.Anatase titanium dioxide is an excellent white powder pigment with goodlight scatteringTherefore, it has good whiteness, high colouring power, strong covering power, high chemical stability and good weather resistance. It is non-toxic, tasteless and harmless to human bodyIrritant effectIt is widely used in many industrial fields, such as coatings, plastics, paper making and printing ink.
Research and development
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1. Concept of titanium dioxide
Titanium dioxide
The environmental protection cost of titanium dioxide is about 100 yuan/ton. If the national access standard for titanium dioxide industry is issued, many enterprises will face a huge crisis. In addition, the environmental protection cost will be increased,product pricerise,Small and medium-sized enterprisesThe situation is particularly grim.
For a long time,Titanium powderAccess conditions vary from place to place in the industry“Local protectionism”In titanium powderProduction fieldprevalence.At the end of January, Tianxia Private Equity reported that the Ministry of Industry and Information Technology had begun to formulate access conditions for the titanium powder industry, but no policy was issued,Business associationanalystHe said that various signs indicated that the access standard for titanium powder industry was to be issued.
Nobel Prize in ChemistryIt will be revealed that the most popular candidates are titanium dioxide related R&D personnel, so,AnadaTitanium dioxideConcept UnitGreat rise.At the same time, the high price of titanium dioxide fluctuates strongly, and there is still a possibility of breakthrough.Therefore, the stock price trend of relevant individual stocks such as Billion Union may be optimistic.
At the same time, the Plan also proposes strict market access, implementation of financing policies under pressure, strict management of land supply and use, encouragement of comprehensive utilization of tailings waste, promotion of pilot direct power purchase transactions, and strengthening macro guidance andIndustry managementAnd timely summary, publicity and promotionSafeguard measures。
2. Titanium dioxide industry may see the bottom, and environmental protection will promote the recovery of landscape style
Titanium dioxide industryBottoming rebound。In recent two years, with the slowdown of economic growth and the continuous increase of domestic titanium dioxide production capacity, the titanium dioxide industryexcess production capacityThe situation is serious. In 2012, the domestic titanium dioxide production capacity reached 2.8 million tons, and the output reached 1.95 million tons,Net exports220000 tons,Apparent consumption1.73 million tons.
This is accompanied by a decline in product pricesrutileTake titanium dioxide as an example, the product quotation has dropped from more than 22000 yuan/ton to 16000 yuan/ton (actuallyTransaction priceAbout 14000 yuan/ton), enterpriseGross profit marginIt is also down sharply, but due to environmental protection factors, the enterprise starts to reduce, the inventory is low, and the traditional peak season is comingIndustry concentrationThere is much room for improvement in the future.
There are more than 50 titanium dioxide production enterprises in China, which are distributed all over the country, and a large number of small and medium-sized enterprises are concentrated in those lacking resource advantagesEastern region。But our countryTitanium resourcesMainly focused onSouthwest ChinaThe whole industry is still in a relatively decentralized development period.
We believe that in the futureTitanium oreThe enterprise is expected to develop rapidlydiscourse powerIt will increase, and the industry concentration is expected to increase.Environmental protection factors are expected to becomeIndustry integrationcatalyzer.dyestuffSome small and medium-sized enterprises in such industries have reduced production or even shut down, leading to a sharp rise in product prices.We believe that as another heavily polluted area in the chemical industry, the environmental storm is expected to hit the titanium dioxide industry.
The high cost of environmental protection governance makes it difficult for small and medium-sized enterprises to bear.Titanium dioxide productionwater consumptionExtremely. Take the sulfuric acid process as an example, the water consumption per ton of titanium dioxide is 100-150 tons. Therefore, although the treatment is not difficult, the treatment capacity is very high.It is understood that titanium dioxidewaste water treatmentfixed assetsThe investment is high, reaching 13 million yuan/10000 tons.In the overall downturn of the industry, SMEs may be unable to bear it and are expected to withdraw gradually.
