Potassium hydroxide is now more and more widely used, so how much do you know about this product? Among the manufacturing methods of products, there is a method called diaphragm electrolysis. The manufacturing steps of this method and the aspects in which the products made by this method can be applied are explained in detail below
Potassium chloride, the raw material of diaphragm electrolysis, dissolves into saturated solution in salt bath. When heated to 90 ℃, potassium carbonate was added respectively. Caustic potash. Barium chloride is used to remove calcium. Magnesium, sulfate and other impurities. The slag is removed by sedimentation. Neutralization with hydrochloric acid. 280-315g / L potassium chloride solution was preheated to 70-75 ℃ and then electrolyzed. Potassium hydroxide was obtained.
The concentration of the product obtained by diaphragm method is 10% to 11%, which needs to be clarified by evaporation and cooling. A solution containing 45 to 50 percent of the product is obtained; it can also be concentrated in an alkali pot. After decolorization. A solid product. Or it can be made into pieces.
The above is to summarize the relevant content of potassium hydroxide diaphragm electrolysis. In the future operation, you should pay more attention to this knowledge and know more about the manufacturing method of the product, so as to distinguish the application field of the product, which is helpful for your product use.