De-ashing lubricating oils

Details De-ashing lubricating oils De-ashing lubricating oils

1979-11-07

1981-01-27

Levine, Herbert

Mineral oils: processes and products

Refining

Purifying used oil

208182, 208251R, 208251H, 208289, C10G 2900, C10M 1100

Patent

active

042473896

ABSTRACT:
A process for the production of an essentially ash-free oil stock from a lubricating oil containing ash-forming components comprising

REFERENCES:
patent: 2271882 (1942-02-01), Ambler
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patent: 3095273 (1963-06-01), Austin
patent: 3173859 (1965-03-01), Chambers
patent: 3791965 (1974-02-01), Fitzsimons et al.
patent: 3879282 (1975-04-01), Johnson
patent: 3923643 (1975-12-01), Lewis et al.
patent: 3930988 (1976-01-01), Johnson
patent: 4151072 (1979-04-01), Nowack et al.
W. H. McAdams, "Heat Transmission", (1933), p. 169.

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