Purification of oil

Details Purification of oil Purification of oil

1997-10-24

1999-11-02

Myers, Helane

Mineral oils: processes and products

Refining

Purifying used oil

208179, C10G 2920, C10G 2922

Patent

active

059763574

ABSTRACT:
The present invention relates to a method for purification of oil which is contaminated with particles of random density and/or water. A collection polymer or polymer mixture which is insoluble in oil and liquid at room temperature and which has a density which is higher than the oil is added to and mixed with the contaminated oil. The collection polymer and the oil are separated by gravity with or without centrifugation such that the oil forms a top phase and the collection polymer or polymer mixture and the main part of the contaminants form a bottom phase. The bottom phase with the collection polymer and the contaminants is removed.

REFERENCES:
patent: 4033859 (1977-07-01), Davidson et al.
patent: 4045330 (1977-08-01), Avrillon et al.
patent: 4512878 (1985-04-01), Reid et al.
patent: 5141628 (1992-08-01), Martin et al.

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