Method of stabilizing lube oils

Details Method of stabilizing lube oils Method of stabilizing lube oils

1978-05-01

1980-01-01

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

208 18, 208 58, C10G 3706, C10G 4100

Patent

active

041815971

ABSTRACT:
A process is provided for improving the stability of a hydrocarbon mineral oil, particularly a hydrocracked stock, normally susceptible to thermal oxidation and the effect of light rays and for decreasing the tendency of the oil to form sludge material. The process involves reacting the hydrocarbon mineral oil before or after conventional treatment, such as dewaxing operations, with a stabilizing agent, such as an olefin, alcohol, ester or alkyl halide in the presence of a heterogeneous acidic catalyst which includes acid resins, clays and aluminosilicates, and which has a controlled alkylation activity. The final oil product has improved light stability over a conventionally treated oil.

REFERENCES:
patent: 2130024 (1938-09-01), Pier et al.
patent: 2378762 (1945-06-01), Frey
patent: 2554395 (1951-05-01), Axe
patent: 3463724 (1969-08-01), Langlois et al.

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