ANTI-WEAR ADDITION AGENT TO AQUEOUS LUBRICANT-COOLANT LIQUIDS AND A METHOD OF ITS PREPARING Russian patent published in 1995 - IPC

FIELD: anti-wear additions. SUBSTANCE: addition agent has, copper tetarmine sulfate 12-16; glycerol 3-9; sodium carbonate 0.2-0.8; sodium nitrite 0.5-1.5; ammonium acetate 0.8-1.2; ethanol 0.3-0.5; ethyl acetate 0.5-2, and water the rest. Method of addition agent preparing involves mixing solution prepared by treatment of aqueous copper sulfate with ammonia solution followed by glycerol addition to it with the solution obtained by successive dissolving sodium nitrite and sodium carbonate dissolving. Then ethyl acetate and water were added to the prepared solution mixture. EFFECT: enhanced quality of anti-wear addition. 3 cl