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METHOD OF PURIFYING ANTIFREEZE BASED ON WATER-ETHYLENE GLYCOL SOLUTION TO REMOVE ETHYLENE GLYCOL OXIDATION PRODUCTS, CORROSION PRODUCTS, AND SUSPENDED IMPURITIES
METHOD OF PURIFYING ANTIFREEZE BASED ON WATER-ETHYLENE GLYCOL SOLUTION TO REMOVE ETHYLENE GLYCOL OXIDATION PRODUCTS, CORROSION PRODUCTS, AND SUSPENDED IMPURITIES
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机译:一种基于水乙二醇溶液的抗氧化剂提纯方法,以去除乙二醇氧化产物,腐蚀产物和悬浮杂质
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FIELD: special-destination fluids. SUBSTANCE: invention resides in adding in adding coagulant followed by separation of centrifuge and clarification on activated carbon, said coagulant being composed of alkali metal hydroxide, 75% orthophosphoric acid, and sodium polyphosphate and added in amounts providing mixture containing, wt %: sodium or potassium hydroxide 0.01-1.0, 75% orthophosphoric acid 0.02-1.6, sodium polyphosphate 0.01-1.5, glycols 40.0-90.0, water and oxidation and corrosion products - the balance. EFFECT: improved quality of purification and reduced power consumption. 3 tbl, 3 ex
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