Procedure for the reprocessing of used lubricating oils

Details Procedure for the reprocessing of used lubricating oils Procedure for the reprocessing of used lubricating oils

1979-03-22

1981-03-10

Hearn, Brian E.

Mineral oils: processes and products

Refining

Purifying used oil

208184, 208185, 208208M, 208258, 208294, C10M 1100

Patent

active

042552524

ABSTRACT:
A method for reprocessing used lubricating oils is disclosed wherein the oil is dried, treated with finely dispersed sodium metal at elevated temperature, the remaining free or organically bound metal is decomposed by means of an active hydrogen containing compounds, followed by distillation of the oil for recovery.

REFERENCES:
patent: 1752050 (1930-03-01), Young
patent: 1934068 (1933-11-01), Jolly
patent: 2722211 (1956-11-01), Hawkes
patent: 3620967 (1971-11-01), Gulick
patent: 4097369 (1978-06-01), Ebel et al.
patent: 4101414 (1978-07-01), Kim
Gmelin, Handbuch Der Anorganischen Chemie, Natrium No. 21 (1965) Verlag Chemie, pp. XI, 613-616, 624, 625. _

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