Reclaiming used motor oil

Details Reclaiming used motor oil Reclaiming used motor oil

1975-02-24

1976-01-06

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Purifying used oil

208 89, 208254, 208236, 208289, 208182, 208299, C10M 1100, C10G 1700

Patent

active

039309886

ABSTRACT:
A process for reducing the ash content and the content of metals present in used motor oils by contacting the used motor oil with an aqueous solution of ammonium sulfate and/or ammonium bisulfate under conditions to react with the metal compounds present to form separable solids. In another embodiment of the invention, the used motor oil after reaction with an aqueous solution of ammonium sulfate and/or ammonium bisulfate can be further treated with an adsorbent and then optionally hydrotreated to produce an oil product suitable as a fuel or as a feedstock for lubricating oil compositions.

REFERENCES:
patent: 1828429 (1928-10-01), Moreton
patent: 3169917 (1965-02-01), Kahan
patent: 3294678 (1966-12-01), Gleim
patent: 3791965 (1974-02-01), Fitzsimons et al.
patent: 3817855 (1974-06-01), Smith et al.
patent: 3879282 (1975-04-01), Johnson
"Reclamation of Gasoline Used in Dry Cleaning," Department of Commerce Technologic Papers of the Bureau of Standard No. 280, Part of Vol. 18, 122.

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