Green chemistry is also called environmentally friendly chemistry, environmentally friendly chemistry and clean chemistry.
Green chemistry refers to the design of chemicals and processes that reduce or eliminate the use of hazardous substances. Green chemistry involves organic synthesis, catalysis, biochemistry, analytical chemistry and other disciplines. Green chemistry advocates the use of chemical technologies and methods to reduce or stop the use and production of raw materials, catalysts, solvents, reagents, products, by-products, etc. that are harmful to human health, community safety, and the ecological environment.
The core of green chemistry:
Green chemistry mainly evaluates the safety of raw materials, energy saving of process, economy of reaction atoms and environmental friendliness of products. Atomic economy and 5R "principle are the core contents of green chemistry. Atomic economy refers to making full use of each atom in the reactant, so as to make full use of resources and prevent pollution. Atom utilization rate superionization can maximize the use of each atom in the raw material and combine it into the target product. The less waste generated by the reaction, the less pollution to the environment. The five R "principles of green experiment should be followed during the experiment, namely:
Reduction， Reduce the use of raw materials, and reduce the generation and discharge of experimental wastes;
Reuse， Recycle and reuse;
Recycling， Recycling, realizing the recycling of resources, so as to save resources, reduce pollution and reduce costs ";
Regeneration， Recycling, turning waste into treasure, and reusing resources and energy are effective ways to reduce pollution;
Rejection， Refusing to use toxic and harmful products, and refusing to use some irreplaceable, recyclable, renewable and reusable raw materials that have toxic side effects and will cause pollution, is the most fundamental way to eliminate pollution.
Research on green chemistry:
Green chemistry aims to reduce the harmful substances used and produced in chemical products and processes needed to maintain human living standards and scientific and technological progress by using the method of sustainable development. Therefore, chemical and chemical activities related to green chemistry belong to the category of green chemistry. In recent years, the research of green chemistry mainly focuses on the greening of chemical reactions, raw materials, catalysts, solvents and products. In the road map proposed by Crystal Faraday Overseas Chinese Association in 2004, 8 technical fields were given, namely green product design, raw materials, reaction, catalysis, solvent, process improvement, separation technology and realization technology. On this basis, Ji Hongbing and She Yuanbin proposed green chemical product design, green raw materials and new raw material platform, new reaction technology, green catalyst preparation and new catalytic technology, green solvent and green solvent, new reactor and process strengthening and coupling technology, new separation technology, green chemical process system integration The development trend of green chemistry and chemical engineering in 9 aspects, including the combination of computational chemistry and green chemistry and chemical engineering.
What is green chemistry?
Green chemistry is also called environmentally friendly chemistry, environmentally friendly chemistry, and clean chemistry, namely, the design of reducing or eliminating the use of hazardous substances and the chemicals and processes generated.
Green chemistry involves organic synthesis, catalysis, biochemistry, analytical chemistry and other disciplines. Green chemistry advocates the use of chemical technologies and methods to reduce or stop the use and production of raw materials, catalysts, solvents, reagents, products, by-products, etc. that are harmful to human health, community safety, and the ecological environment.
Extended data:
Green chemistry mainly evaluates the safety of raw materials, energy saving of process, economy of reaction atoms and environmental friendliness of products. Atomic economy and "5R" principle are the core contents of green chemistry. Atomic economy refers to making full use of each atom in the reactant, so as to make full use of resources and prevent pollution.
The atom utilization rate superionization can maximize the use of each ingredient in the raw material, and combine it into the target product. The less waste generated by the reaction, the less pollution to the environment.
