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What kinds of industrial salt are there? What are the uses?

Jul 04,2023 | 胡龙凯

Salt is a common daily necessities in life, and everyone is familiar with salt. But when it comes to industrial salt, many people don't know much about it. Industrial salt cannot be used for food, but it is widely used in industry. It is a colorless cubic crystal or fine crystalline powder, and is easily soluble in water. Among the main products of the chemical industry, hydrochloric acid, caustic soda, soda ash, ammonium chloride, and chlorine gas are mainly produced from industrial salt.

Common industrial salts include large grain salt, small white salt, refined salt, by-product salt, etc. Industrial salt mainly has the following uses:

  • In the tanning industry, in order to prevent or inhibit the erosion of microorganisms, the salt drying method is used to carry out anti-corrosion treatment on leather materials to maintain the quality of raw leather during storage and transportation.
  • In the metallurgical industry, salt is often used as a chlorinated roasting agent and quenching agent;
  • In the process of oil well drilling, in order to protect the integrity of the rock-salt core, it is necessary to add salt to the mud as a stabilizer;
  • In the machinery industry, during casting, salt can be used as an excellent binder for non-ferrous metal and alloy casting medium sand;
  • Commonly used raw materials in the dye industry, such as soda ash, are directly produced from salt, and a certain amount of salt is consumed in almost every step in the dye production process;
  • In soap making in light industry, salt is often added in order to maintain a suitable viscosity of the solution;

In addition, industrial salt is also widely used in the production of chlorine, sodium hydroxide, pharmaceutical industry, agriculture, animal husbandry and fishery, and is an indispensable raw material for the production of products in various industries.

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