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[Chemical Knowledge]：Production and manufacturing method and process of ammonium alum

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Ammonium alum, also known as ammonium aluminum sulfate, is a widely used raw material in the production of chemicals. It has excellent coagulation and corrosion resistance, so it is often used as a food additive and industrial coagulant. The following is a method of making ammonium alum.

**Raw material preparation** The main raw materials for

to manufacture ammonium alum include sulfuric acid, aluminum hydroxide and ammonia. These raw materials should meet industrial grade standards to ensure purity and quality.

**Manufacturing steps**

1. **Preparation of aluminum sulfate**: Aluminum hydroxide is reacted with sulfuric acid to produce aluminum sulfate. This reaction needs to be carried out at a certain temperature and pressure to ensure the completion of the reaction.

2. **Ammoniation reaction**: Aluminum sulfate is reacted with ammonia water to generate aluminum ammonium sulfate. This step requires pH control to ensure product quality and purity.

3. **Crystallization and Drying**: The reaction solution was subjected to cooling crystallization to obtain crystals of ammonium alum. Drying is then carried out to obtain the final ammonium alum product.

**Quality Control**

In the entire manufacturing process, strict quality testing of raw materials, semi-finished products and final products is required, including various indicators such as purity, particle size, and chemical composition. At the same time, it is also necessary to strictly control the temperature, pressure, pH value and other parameters in the production process to ensure the stability and consistency of the product.

**Environmental Protection and Safety**

in the production process, need to follow the relevant environmental protection and safety regulations, the proper disposal of waste and by-products, reduce the impact on the environment. At the same time, it is also necessary to carry out regular maintenance and inspection of production equipment to ensure the safety of the production process.

above is a method of manufacturing ammonium alum, but the specific manufacturing process may vary due to equipment, process, raw materials and other factors. Therefore, in actual production, it is necessary to adjust and optimize according to specific conditions.

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