De-ashing lubricating oils

Details De-ashing lubricating oils De-ashing lubricating oils

1982-09-14

1983-12-13

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Metal contaminant removal

208179, 208 48R, C10G 1700, C10G 912, C10G 916, C10M 1100

Patent

active

044203896

ABSTRACT:
In a process for producing an essentially ash-free oil stock from a lubricating oil containing ash forming components comprising reacting the oil with an aqueous ammonium salt capable of reacting with the ash-containing components and heating the thus treated oil at a temperature in the range of about 300.degree. C. to about 420.degree. C. to increase the amount of the ash-forming components removed, the improvement comprising not exposing the oil to a temperature greater than 200.degree. C. before the oil is passed into a large volume of the oil already at a temperature in the range of about 300.degree. C. to about 400.degree. C.

REFERENCES:
patent: 1783697 (1930-12-01), Brink et al.
patent: 2045216 (1936-06-01), Crowley et al.
patent: 2762754 (1956-09-01), Offutt et al.
patent: 3790474 (1974-02-01), Moffitt
patent: 3904512 (1975-09-01), Clark
patent: 3923643 (1975-12-01), Lewis et al.
patent: 3930988 (1976-01-01), Johnson
patent: 4151072 (1979-04-01), Nowack et al.
patent: 4247389 (1981-01-01), Johnson
patent: 4265733 (1981-05-01), Gabler et al.
patent: 4381992 (1983-05-01), Wood et al.
W. L. Nelson, Petrol. Refining and Engineering, 4 ed., pp. 682 and 683.
M. Akbar, Hydrocarbon Processing, May 1981, p. 81.

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