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[Chemical Knowledge]：Manufacturing method and process of waste raw materials

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The manufacturing method
of raw materials for the production of waste chemicals
1. Introduction

With the rapid development of the chemical industry, the treatment and reuse of raw materials for the production of waste chemicals has become increasingly prominent. These waste raw materials are not only a wide range of sources, but also a huge number, if not effectively used, will cause serious pollution to the environment. Therefore, it is of great significance to study the manufacturing methods of waste chemical raw materials and improve their reuse efficiency for promoting the sustainable development of the chemical industry.

2. the source and classification of waste raw materials

waste chemical production raw materials mainly come from the production process of waste, by-products and used chemical products. According to the nature and composition of waste raw materials, it can be divided into the following categories:

1. Waste catalyst: Catalyst plays an important role in the chemical production process, but it will lose its activity after a period of use and become a waste catalyst.
2. Waste solvent: A large amount of solvent is often used in the chemical production process, and the waste solvent mainly comes from the residue and used solvent in the production process.
3. waste acid and alkali: chemical production often use acid and alkali as a reaction medium or catalyst, waste acid and alkali mainly from the production process of residues and used acid and alkali.

3. the manufacturing method of waste raw materials

1. Reuse
of waste catalyst
waste catalyst can restore its activity through regeneration treatment and be used again in chemical production. Common regeneration methods include heat treatment, chemical treatment and physical treatment. The regenerated catalyst needs to undergo performance testing to ensure that its activity and selectivity meet production requirements.

2. Recovery and reuse of waste solvent

waste solvent can be recovered and reused by distillation, extraction, adsorption and other methods. The recovered solvent needs to be tested for purity to ensure that it meets production requirements. At the same time, in the process of treating waste solvents, it is necessary to pay attention to safety precautions and environmental protection requirements.

3. Neutralization and treatment of waste acid and alkali

waste acid and alkali needs to be neutralized to adjust its pH value to a safe range, and then discharged or further treated. Common neutralizers are lime, sodium hydroxide, sulfuric acid, etc. In the process of treating waste acid and alkali, it is necessary to strictly abide by environmental protection regulations to ensure that waste water meets the discharge standards. The technical and economic analysis of the reuse of waste raw materials in

4.

the reuse of waste raw materials has significant economic and environmental benefits. First of all, the reuse of waste raw materials can reduce production costs and improve the economic benefits of enterprises. Secondly, the reuse of waste raw materials can reduce waste emissions and reduce the impact on the environment. Finally, the reuse of waste raw materials can promote the recycling of resources and promote the sustainable development of the chemical industry.

5. conclusion

the manufacturing method of waste chemical raw materials is of great significance for improving resource utilization efficiency, reducing production costs and reducing environmental pollution. In the actual production process, it is necessary to select the appropriate manufacturing method according to the nature and composition of the waste raw materials, and to ensure the safety and environmental protection of the processing process. Through continuous research and improvement of the manufacturing methods of waste raw materials, the green development and sustainable development of the chemical industry can be promoted.

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