METHOD OF COLORING OF POTASSIUM CHLORIDE

摘要

FIELD: manufacture of mineral potassium chloride fertilizers with distinctive or typical coloring. SUBSTANCE: potassium chloride is treated with pigment suspension which is based on iron oxides in aqueous solution of polyoxyglycol. Pigment consumption is 100-3000 g per ton of potassium chloride, and polyoxyglycol consumption is 300-5000 g per ton of potassium chloride. EFFECT: mineral fertilizer with almost natural coloring and desired physico-mechanical properties. 3 cl, 1 tbl