What is the core of green chemistry? What is green chemistry also called? At its core? What are the

Use chemical principles to reduce and eliminate environmental pollution from industrial production at the source.

At the heart of green chemistry is environmental protection.

The products can be utilized, mostly in chemical reactions.

Green chemistry is also known as environmentally friendly chemistry, environmentally friendly chemistry, and clean chemistry.

Its core is to use chemical principles to reduce and eliminate environmental pollution from industrial production at the source.

What are the main features?

1. Make full use of resources and energy, and use non-toxic and harmless raw materials;

2 Reactions are carried out under non-toxic, harmless conditions to reduce the discharge of waste into the environment;

3. Improve the utilization rate of atoms, and strive to make all atoms as raw materials be absorbed by products to achieve "zero emissions";

4. Produce environmentally friendly products that are conducive to environmental protection, community safety and human health.

Green ChemistryThe core is to use chemical principles to reduce and eliminate the pollution of industrial production to the environment from the source.

Green chemistry is also known as environmentally benign chemistry and environmentally friendly chemistry.

environmentally friendly chemistry), clean chemistry, i.e. the design of processes to reduce or eliminate the use of hazardous substances and the production of false chemicals.

Research hotspots

Green chemistry to harness sustainable development.

The chemical products and processes needed to maintain human living standards and scientific and technological progress are reduced.

The use of harmful substances produced to promote purity is the goal of efforts, so the related chemical and chemical activities belong to the category of green chemistry.

In recent years, the research of green chemistry has mainly revolved around chemical reactions.

Greening of raw materials, catalysts, solvents, and products. In 2004, the British Crystal Faraday Overseas Chinese Association proposed a roadmap for 8 technical areas, namely green product design.

Feedstocks, reactions, catalysis, solvents, process improvements, separation technologies and implementation technologies.

Green chemistry is also known as environmentally sound chemistry, and the technology developed on its basis is called environmentally friendly technology or clean technology. Its main content is to use chemical technologies and methods to reduce or eliminate the production and application of raw materials, products, by-products, solvents and reagents that are harmful to human health or the environment, so as to no longer produce pollution from the source of chemical reactions and chemical processes, and to design and produce environmentally friendly new molecules and new materials. The focus of green chemistry is to make waste no longer generated, there is no longer the problem of waste disposal, it is a chemical that prevents pollution from the source.

Green chemistry is mainly evaluated from the safety of raw materials, the energy saving of the process, the economy of the reaction atoms and the environmental friendliness of the products. Atomic economics and the "5R" principle are at the heart of green chemistry. Atom economy refers to the full use of the individual atoms in the reactants, so as to make the best use of resources and prevent contamination.

The utilization rate of atoms is super-ionized, and each atom in the raw material can be maximized to be combined into the target product, the less waste produced by the reaction, and the less pollution caused to the environment, the 5 "R" principles of green experiments should be followed in the experimental process, namely.

1. Reduction: reduce the use of raw materials and reduce the generation and discharge of experimental waste;

2. Reuse, recycling, reuse;

3. Recycling, recycling, to achieve the best utilization of resources, so as to achieve "saving resources, less pollution, and reducing costs";

4. Regeneration, regeneration, turning waste into treasure, and reusing resources and energy are effective ways to reduce pollution;

5. Rejection, refuse to use toxic and harmful products, refuse to use some irreplaceable and irreplaceable, regenerative and reusable, toxic and polluting raw materials, which is the most fundamental way to eliminate pollution.

The direction of green chemistry.

In 2011, Liang Bifeng's "Introduction to Green Chemistry" pointed out that the development direction of green chemistry is as follows:

1. Research new chemical reaction processes that are harmless to the environment on the basis of atomic economy and programmable development.

2. Improve the traditional chemical reaction process to the green chemical reaction process to solve the pollution problem.

3. Develop technologies for pure energy and removal of harmful substances.

4. Technical research on the regeneration, regeneration and recycling of resources.

5. In all possible green chemical reactions, follow the 12 principles of green chemistry.

In 2005, Ryoji Noyori pointed out three major developments in green chemistry: the use of supercritical carbon dioxide as a green solvent; clean oxidation of aqueous hydrogen peroxide; Hydrogen is used in asymmetric synthesis.

The above content refers to Encyclopedia - Green Chemistry.

Green Chemistry: The design of chemicals and processes that reduce or eliminate the use and generation of hazardous substances.

One of the core elements of green chemistry is "atom economy", that is, the full use of the individual atoms in the reactants, so as to make the best use of resources and prevent pollution.

The second core content of green chemistry is mainly reflected in the five "R": the first is reduction, that is, to reduce the emission of "three wastes"; The second is reuse - "reuse", such as catalysts and carriers in the chemical industry, which is the need to reduce costs and waste; The third is recycling - "**", which can effectively achieve the requirements of "saving resources, reducing pollution and reducing costs"; The fourth is regeneration - "regeneration", that is, an effective way to turn waste into treasure, save resources and energy, and reduce pollution; The fifth is rejection - "refusal", which refers to the refusal to use in the chemical process for some irreplaceable, regeneration, regenerative and reusable, toxic and polluting raw materials, which is the most fundamental way to eliminate pollution.