... and other trades 3) Most commonly used for gypsum, ferric sulfate, nickel sulphate, copper sulphate, potassium chloride, acetate, borax, soda, rubber additives, dye, plastic ... , gourmet powder, food additives, vitamins, herbicides, insecticides and dewatering of copper, zinc, aluminum and other mineral powders Working principles: 1) PSBD ...