May I ask what types of projects consume a large amount of caustic soda?
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May I ask what industries consume large amounts of liquid caustic soda? I only know aluminum electrolysis, textiles, and papermaking. Are there any other new industries besides these?
In the chemical industry, sodium formate can be produced; this process requires caustic soda. However, many plants for its production have been established in China at present, and the market situation is not very clear.
The consumption of PVC in projects is very high! ! ! !
Reply to 1# cnsttop: Caustic soda is an important basic chemical raw material, widely used in industries such as chemicals, light industry, textiles, printing and dyeing, pharmaceuticals, metallurgy, glass, enamel, and petroleum; it holds a significant position in the national economy. Sodium hydroxide can be used as a desizing agent, scouring agent, and mercerizing agent in the textile printing and dyeing industry. In the chemical industry, it is used to produce borax, sodium cyanide, formic acid, oxalic acid, phenol, and other substances. In the petroleum industry, it is employed in the refining of petroleum products as well as in oil field drilling muds. Caustic soda can also be used in papermaking, cellulose pulp production, soap and synthetic detergents manufacturing, as well as in the refining of animal and vegetable oils. It is also employed in the production of alumina, and in the surface treatment of zinc and copper metals, as well as in the pesticide industry. Food-grade caustic soda products are used in the food industry as acid neutralizers, and can serve as peeling agents for citrus fruits, peaches, etc., as well as as decolorizing and deodorizing agents.
This post was last edited by mgdtcc on 2010-12-12 at 19:01. It can be said that the production volume of PVC projects is high, as PVC projects generally involve chlor-alkali production; PVC consumes chlorine, while caustic soda needs to be exported
Hubei Xingfa produces sodium hypophosphite by reacting liquid caustic with yellow phosphorus, and a large amount of it is used in this process.
Electrolytic aluminum requires little alkali, while alumina consumption is high; currently, liquid alkali is widely used