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[Chemical Knowledge]：Manufacturing method and process of zinc fluosilicate

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Manufacturing method

of zinc fluorosilicate Zinc fluorosilicate is an important inorganic chemical, widely used in ceramics, glass, metallurgy, electronics and other fields. This article will introduce the manufacturing method of zinc fluosilicate, including raw material preparation, reaction process, post-treatment and precautions.

1. raw material preparation

1. fluosilicic acid: fluosilicic acid is the main raw material for the manufacture of zinc fluorosilicate, generally by the reaction of fluorite and sulfuric acid.
2. Zinc salt: The zinc salt may be zinc sulfate, zinc oxide or the like as a raw material for supplying zinc ions.

2. reaction process

The manufacture of zinc fluorosilicate is mainly realized by the reaction of fluorosilicic acid and zinc salt. The specific steps are as follows:

1. add fluorosilicic acid into the reaction kettle and start stirring.
2. Add the zinc salt slowly while controlling the reaction temperature to avoid local overheating.
3. Hydrogen will be generated during the reaction, which needs to be discharged through ventilation equipment.
4. After completion of the reaction, the reaction mixture is filtered, washed and dried to obtain a zinc fluorosilicate product.

3. post-treatment

1. Product packaging: Put the zinc fluosilicate product into a woven bag or carton lined with a plastic bag, sealed and stored.
2. Waste treatment: The waste generated in the reaction process should be properly treated in accordance with environmental protection requirements to avoid environmental pollution.

4. Precautions

1. Operators should wear protective equipment to avoid direct contact with zinc fluosilicate.
2. The temperature should be strictly controlled during the reaction to avoid safety accidents caused by excessive temperature.
3. The production site should be equipped with fire-fighting equipment, just in case.
4. Regularly inspect and maintain the production equipment to ensure the normal operation of the equipment.

In short, the manufacture of zinc fluosilicate needs to strictly abide by relevant operating procedures and safety requirements to ensure product quality and production safety. The manufacturing method introduced in this paper can provide some reference and guidance for the production of zinc fluosilicate in the field of chemical production raw materials.

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