Treating used automotive lubricating oil to reduce the content o

Details Treating used automotive lubricating oil to reduce the content o Treating used automotive lubricating oil to reduce the content o

1982-03-19

1985-01-01

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Purifying used oil

208181, C10M 1100

Patent

active

044915152

ABSTRACT:
Process for treating used lubricating oil to reduce the content of suspended particulate matter therein, characterized by contacting said used lubricating oil with a carbonyl-group containing compound in the presence of an aqueous electrolyte, separating the resulting mixture into an upper layer containing clarified oil and a lower layer containing agglomerated particulates, and recovering oil of reduced particulate content as product. Suitable carbonyl-group containing compounds include ketones, esters and aldehydes and suitable electrolytes include inorganic and organic acids, alkalis and salts.

REFERENCES:
patent: 1584588 (1926-05-01), Acheson
patent: 3763036 (1973-10-01), Jordan et al.
patent: 3819508 (1974-06-01), Fainman et al.
patent: 3835035 (1974-09-01), Fainman et al.
patent: 4028226 (1977-06-01), Forsberg
patent: 4073719 (1978-02-01), Whisman et al.
patent: 4204946 (1980-05-01), Johnson

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