Process for regenerating lubricating oils

Details Process for regenerating lubricating oils Process for regenerating lubricating oils

1976-06-04

1977-08-30

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Purifying used oil

208181, 208184, C10M 1100

Patent

active

040453308

ABSTRACT:
Used lubricating oil is contacted with particles of a solid adsorption resin comprising at least 0.1 cc per gram of pores of diameter in the range of 6 to 300 angstroms. The resin is preferably a porous polycondensate or cross-linked copolymer comprising pyridyl or hydroxy groups, for example a polycondensate of phenol and formaldehyde. The resin may be reactivated by rinsing with an organic solvent such as an alcohol, a ketone or a chlorinated hydrocarbon.

REFERENCES:
patent: 1703645 (1929-02-01), Brunt
patent: 2320106 (1943-05-01), South
patent: 3785968 (1974-01-01), Whitehurst
patent: 3919075 (1975-11-01), Parc et al.

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