Process for treating and regenerating used oil products
OwnerGabriel Saderinventor
Life of this patent
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Abstract
In the recovery of regenerated mineral and synthetic oils from blackish dirty lubricating or industrial oils, a quaternary ammonium salt or mixture of salts is added to the dirty oil and the mixture is subjected to agitation. The agitated mixture is next subjected to a decanting operation making it possible to recover, as the upper supernatant fraction, an oil exhibiting approximately the same characteristics as a new starting oil useful for automotive engines, transmissions and differentials, as a lubricant for machine tools, useful in transformers and other electric and electropneumatic devices and also useful as a hydraulic fluid.
Claims7
Process of treating nonedible oil products, particularly used lubricating and industrial oils, to recover a large fraction of directly reusable oil, consisting essentially of:
- agitating the used oil in the presence of a quaternary ammonium salt containing at least one aryl ring, or a mixture of such salts, and then
- decanting and recovering the supernatant fraction as a regenerated oil.
Dependencies are inferred from the claim text.