Dissociating used coolant or lubricant - comprises saturating with carbon di:oxide under pressure to separate organic and aq. phase

摘要

Method of dissociating used coolant/lubricants and other emulsions. The emulsion, which together with agents consists essentially of oil, water and an emulsifier or an emulsifier combination, is either satd. with CO2 under pressure or treated with water contg. carbonic acid, and is then slowly heated to separate into an organic and a watery phase. USE/ADVANTAGE - The method is simple and, at low cost and without harm to the environment, enables used coolant/lubricants (such as those used in metal working) to be sepd. and re-usehi