9. Polyether recovery: recovery of expired polyether polyols, recovery of expired mdi, recovery of liquefied mdi, recovery of more -- polyyingsuanzhi, recovery of polyether polyols 330n, recovery of mdi, recovery of polyether polyols, recovery of combined polyether, recovery of pure mdi, recovery of combined mdi, recovery of triethylene diamine, recovery of a33 amine, recovery of ethylene glycol amine, recovery of Wanhua mdi, recovery of BASF mdi, Recover Huntsman mdi, Bayer mdi, recover mdimm20s, recover mdimm103c, etc
10. Electroplating auxiliaries mainly include stannous, stannous chloride, stannous oxide, zinc powder, copper oxide, nickel chloride, copper, nickel, cuprous iodide, chromic anhydride, etc.
11. Recovered metal hardware: aluminum silver paste, gold, silver, zinc powder, printed nickel screen, various domestic and imported chemical and hardware products, copper gold powder, zinc powder, nickel, rare metals (nickel, neodymium, sodium tungstate, calcium copper tungstate, etc.), potassium carbonate, potassium hydroxide, lithium hydroxide, zinc plate, zinc block, zinc slag, zinc powder, things containing zinc, stannous chloride, tin dioxide, stannous Tin particles, tin powder, etc.
12. Others, such as paraffin, polyvinyl alcohol, chlorinated paraffin, polyethylene wax, microcrystalline wax, silicone oil, glycerin, cellulose, stearic acid, carbon black, curing agent, maleic anhydride, offset printing ink, heat transfer oil, menthol, sodium alginate, guar gum, xanthan gum, potassium iodide, etc.
[Company commitment]: our company's recovery price is high in the industry; time to visit and inspect goods; cash settlement and honest transaction.
Our company is committed to the work of "purifying the environment, saving resources, integrating resources, and recycling". Our company takes "pioneering, innovative, pragmatic," as the business philosophy, adheres to the resource use principle of "utilization, utilization, and reuse", and takes it as its own responsibility to maintain and improve the human living environment, adhere to the principle, and persevere. At present, the company has more than 150 employees and 25 technical backbones. Its business covers all provinces, cities and autonomous regions in China. Our company has been recycling various waste chemical products and materials for a long time. The company has been trading fairly in the principle of "legality, law-abiding, rationality, integrity, cash payment", and has been favored by customers for a long time. Our aim is to reduce waste, make it harmless, recycle it, make waste useful and turn waste into treasure. So far, our company has become a chemical recycling enterprise with large scale, strong acquisition strength, abundant funds and good reputation in North China. Welcome friends from all walks of life to inquire and negotiate!!
[Recycling scope]: epoxy resin users (refrigerator factory, automobile seat factory, thermal insulation building materials factory, spraying equipment factory, shoe factory, printing factory, carton factory, printing and dyeing factory, paint factory, ink factory, clothing factory, rubber factory, polyether factory, different factories, Mdi factory, electroplating additive factory, pigment factory, resin factory, etc.), epoxy resin production enterprise, debt paying epoxy resin, customs storage epoxy resin, epoxy resin in stock, expired epoxy resin, Wanhua epoxy resin, Huntsman epoxy resin, Bayer epoxy resin, BASF epoxy resin, etc
Second hand chemical raw materials are recycled here and can be supplied at the same time. The expired chemical raw materials in stock cannot be thrown away or used. Come to me. I have the recycling qualification. The company recycles the expired chemical raw materials, chemical additives, chemical solvents, chemical waste, dimethyl sulfoxide, DMF, Methanol, residual waste dyes, pigments, waste resins, pigments, additives, chemical raw materials, chemical reagents, expired paints at the customs, relocation, debt auctions, enamel ceramic colors, various high-temperature and low-temperature ceramic colors, zirconium series, wrapping series, tin series, cobalt series, zinc series and other colors, special products: wrapping red, wrapping yellow, Wrapped orange, wrapped green, zircon red, vanadium zirconium blue, vanadium zirconium yellow, zirconium praseodymium yellow, chromium tin violet, tin antimony grey, chromium tin red, titanium yellow, red brown, gold brown, cobalt black, cobalt blue, cobalt free black, royal blue, green, pore green, fruit green, chrome green, thick green, yttrium red, ferrosilicon red, aluminum iron red, gold paste, gold water, floral paper color, cadmium red, cadmium purple, cadmium orange, chromium green, cobalt blue, cobalt green, Organic and inorganic pigments and various metallic chromium, chromium oxide, electrofusion chromium oxide, as well as various chromium containing materials, selenium oxide, selenium powder, antimony oxide, antimony trioxide, cobalt oxide, cobalt trioxide, lithium cobalate, nickel oxide, nickel aluminum catalyst, tin oxide, tin dioxide, bismuth oxide, copper oxide, neodymium oxide, erbium oxide, praseodymium oxide, enamel ceramic glaze, refractory silicon carbide, Silicon carbide square beam waste, corundum, zirconia, zirconia, zirconium oxychloride, magnesium oxide, magnesium hydroxide, aluminum oxide, various zirconium balls, aluminum balls, dyes, dye intermediates, pharmaceutical intermediates, pigments, paints, inks, resins, pastes, flavors, solvents, heavy metal reagents, heavy metal additives, spices, synthetic rubber, natural rubber, rubber additives, paraffin, Hot melt adhesive, guar gum, phthalic anhydride, maleic anhydride, copper gold powder, silver powder, aluminum silver paste, gold onion powder, cosmetic raw materials, daily chemical raw materials, antioxidant, antioxidant, polyether,, crude benzene, pure benzene, floor paint, wood paint, curing agent, residual engineering coatings, zinc rich primer, ship paint, waste engine oil, white oil, heat transfer oil, transformer oil, waste paraffin, stearic acid, styrene butadiene rubber, NBR, triethylamine, diethylamine, essence, spice, antistatic agent, copper sulfate, nickel sulfate; All kinds of liquid additives, solid additives, provide the same information and share dividends
Tin chloride, chemical formula SnCl2. It is white or white monoclinic crystal system. The relative density is 2.710, the melting point is 37.7 degrees, and it dissolves into hydrochloric acid and basic salt at the melting point. The density of anhydrous matter is 3.950g/cm3, and the boiling point is 623 degrees. It can be dissolved into hydrochloric acid and basic salt at the melting point. It is easily soluble in water, alcohol and glacial acetic acid. Its solubility in concentrated hydrochloric acid is greatly increased, and it can also exist in the form of monohydrate and tetrahydrate.
Application of stannous chloride:
It is used as accelerator of phenolic adhesive to promote the vulcanization of rubber by phenolic resin. During the curing process, rubber molecules penetrate the network of phenolic resin to form a typical interpenetrating network structure and obtain good toughness. It is also used as curing accelerator of unsaturated polyester resin. It is also used as an accelerator of its ether photoinitiator. 102g 530 unsaturated polyester photosensitive resin is added with 2g butyl ether, and the UV curing time is 25min; If 0.04-0.1g SnCl2 is added, the UV curing time is shortened from 25min to 5min.
Application of stannous chloride in precious metal flotation separation:
1. In terms of separation, stannous chloride is mostly used for the flotation separation of platinum, palladium, rhodium, osmium and other precious metals in the form of multi-component association complex. Compared with the traditional solvent flotation separation and foam flotation separation, stannous chloride multi-component association complex system has the advantages of no use of toxic organic solvents, simple operation, no need for special equipment, fast separation, rapid phase separation, less reagent consumption, low analysis cost, etc. The method of flotation separation of platinum with stannous chloride malachite green water system in the presence of ammonium sulfate in hydrochloric acid medium was studied. Under good experimental conditions, the flotation rate of platinum can reach 100.0%, and it can be completely separated from common base metals;
2. In the presence of stannous chloride hexadecyl group system, the flotation behavior experiment of Os (Ⅳ) - tin trichloride complex anion shows that the system can separate Os (Ⅳ) by flotation in hydrochloric acid medium, and the flotation rate is 95.2%~98.0%. Compared with the traditional method of distillation separation of osmium, this method is simple in operation, low in equipment requirements, and can avoid the harm of OsO4 vapor to operators. It is suitable for the separation of a large number of base metal elements before the determination of Os.
