Manufacturing method of sodium persulfate
I. Introduction
Sodium persulfate is an important chemical, widely used in water treatment, bleaching, oxidation and other processes. Mastering the manufacturing method of sodium persulfate is of great significance to chemical production. In this paper, the manufacturing method of sodium persulfate will be introduced in detail, including raw material preparation, reaction process, post-treatment and other processes.
II. Raw material preparation
1. Sodium sulfate: choose high purity sodium sulfate as raw material to ensure product quality.
2. Hydrogen peroxide: choose qualified hydrogen peroxide to ensure the reaction effect.
3. Reaction process
1. Dissolve sodium sulfate in a certain amount of water to make sodium sulfate solution.
2. Under the condition of stirring, slowly add hydrogen peroxide, while controlling the reaction temperature to avoid overheating and triggering side reactions.
3. Continue stirring, so that hydrogen peroxide and sodium sulfate fully react to produce sodium persulfate.
4. Post-treatment
1. Centrifuge the sodium persulfate solution generated by the reaction to remove impurities.
2. Concentrate the supernatant after centrifugation to obtain sodium persulfate concentrate.
3. The concentrate is crystallized to obtain sodium persulfate crystals.
4. Dry the sodium persulfate crystals to obtain the final sodium persulfate product.
V. Precautions
1. During operation, the reaction temperature and time should be strictly controlled to avoid side reactions.
2. When centrifugal separation, make sure that the impurities are removed cleanly to ensure product quality.
3. Temperature and humidity should be controlled during drying to avoid moisture or deterioration of the product.
6. Summary
The manufacturing method of sodium persulfate includes the processes of raw material preparation, reaction process and post-treatment. In the operation process, attention should be paid to control the reaction conditions and ensure product quality. Mastering the manufacturing method of sodium persulfate is of great significance to chemical production and can provide guidance for actual production.
