PROCESS OF PREPARATION OF ANTISLIT REAGENT Russian patent published in 2002 - IPC

FIELD: chemistry, preparation of ecologically pure antislit reagents meant to treat runways, taxi strips, passengers' boarding and other areas of airfields where safe operation should be secured. SUBSTANCE: process of preparation of antislit reagent includes preparation of aqueous solution of potassium acetate used as base by way of mixing 76-85% aqueous solution of acetic acid with aqueous solution of potassium carbonate. Aqueous solutions of potassium acetate and potassium carbonate are prepared with heating of reaction mixture to temperature of 80-95 C by outside heating sources with subsequent injection of aqueous solution of trisodium phosphate and cyclic ether of orthoboric acid and glycerin. In this case pH of aqueous solution of potassium acetate is brought to value 10.1-11.0 with following ratio of components, mas.%: 76-85-% aqueous solution of acetic acid, 36.0-40.0; potassium carbonate, 41.0- 43.0; trisodium phosphate (in terms of potassium acetate), 1.5-1.6; cyclic ether of orthoboric acid and glycerin (in term of potassium acetate), 0.10-0.15, water, the balance. EFFECT: reduced cost of antislit reagent, increased output of finished product, accelerated preparation process, protection of some metals against corrosion. 2 tbl