FIELD: chemistry.
SUBSTANCE: method involves steps for grinding cellulose ether and a cationic surfactant in a mill and, optionally, drying the mixture. Cellulose ether contains water in amount of 20-90% of total weight of the cellulose ether and water. The cationic surfactant is present in amount of 0.001-2% of the total weight of the mixture. The cationic surfactant is a quaternary ammonium compound. Drying is carried out while grinding, before the grinding step or after the grinding step. The method enables to obtain a product with low dust explosion hazard.
EFFECT: obtained cellulose ether is used in cement, gypsum and coating compositions as a thickener and as binder in paints and pharmaceutical preparations.
7 cl, 1 ex
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