Oil bleaching method and composition for same

Details Oil bleaching method and composition for same Oil bleaching method and composition for same

1991-04-02

1992-09-29

Lovering, Richard D.

Compositions

Oxidative bleachant, oxidant containing, or generative

426253, 554191, C11B 300

Patent

active

051512114

ABSTRACT:
The present invention contemplates a method for treating oils having undesirable color impurities and an oil bleaching composition suitable for use in this method. The method comprises contacting the oil with the oil bleaching composition for a time period sufficient to reduce the amount of color impurities of the oil. The oil bleaching composition includes a neutral bleaching clay and a chelating polycarboxylic acid. The spent bleaching composition resists spontaneous combustion.

REFERENCES:
patent: 3036102 (1962-05-01), Pons
patent: 3673228 (1972-06-01), Harris et al.
patent: 3678084 (1972-07-01), Renold
patent: 3955004 (1976-05-01), Strauss et al.
patent: 4230630 (1980-10-01), Mag et al.
patent: 4443379 (1984-04-01), Taylor et al.
patent: 4734226 (1988-03-01), Parker et al.
patent: 4781864 (1988-11-01), Pryor et al.
patent: 5004570 (1991-04-01), Brooks et al.

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