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With the rapid development of the chemical industry, the problem of processing and reusing waste chemical raw materials has become increasingly prominent. These waste materials not only come from a wide range of sources, but also in large quantities. If they cannot be effectively utilized, they will cause serious pollution to the environment. Therefore, studying the manufacturing methods of waste chemical raw materials and improving their reuse efficiency is of great significance 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 waste, by-products, and used chemical products in the production process. According to the properties and composition of waste materials, they can be divided into the following categories: 

1 Waste catalyst: Catalysts play an important role in chemical production processes, but after a period of use, they lose their activity and become waste catalysts

2. Waste solvents: A large amount of solvents are often used in the chemical production process, and waste solvents mainly come from the residues and used solvents in the production process

3. Waste acid and alkali: Acid and alkali are often used as reaction media or catalysts in chemical production. Waste acid and alkali mainly come from the residues and used acid and alkali in the production process

3、 The manufacturing method of waste raw materials 

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

2. Recycling and Reuse of Waste Solvents 

Waste solvents can be recovered and reused through distillation, extraction, adsorption, and other methods. The recovered solvent needs to undergo purity testing to ensure that it meets production requirements. Meanwhile, in the process of treating waste solvents, it is necessary to pay attention to safety precautions and environmental requirements

3. Neutralization and treatment of waste acid and alkali 

The pH value of waste acid and alkali needs to be adjusted to a safe range through neutralization treatment, and then discharged or further treated. Common neutralizing agents include lime, sodium hydroxide, sulfuric acid, etc. In the process of treating waste acid and alkali, it is necessary to strictly comply with environmental regulations to ensure that the wastewater meets the discharge standards

4、 Technical and Economic Analysis of Reuse of Waste Raw Materials 

The reuse of waste raw materials has significant economic and environmental benefits. Firstly, the reuse of waste materials can reduce production costs and improve the economic benefits of enterprises. Secondly, the reuse of waste materials can reduce the discharge of waste and reduce its impact on the environment. Finally, the reuse of waste 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 choose appropriate manufacturing methods based on the properties and composition of waste materials, and ensure the safety and environmental protection of the treatment process. By continuously researching and improving the manufacturing methods of waste materials, the green and sustainable development of the chemical industry can be promoted.