Rerefining of used motor oils

Details Rerefining of used motor oils Rerefining of used motor oils

1975-09-02

1978-07-18

Levine, Herbert

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 19, 208184, 208185, C10G 700, C10M 1100

Patent

active

041014146

ABSTRACT:
Screened and drained used lubricating oil stock is predistilled in a steam stripping still for about 4 hours or more. The thus predistilled used oil then flows to an evaporator for a vacuum distillation at a temperature below the cracking temperature of the stock, about 480.degree.-650.degree. F., to effect an evaporation of the used lubricating oil and its separation from a concentrate by-product of heavy lube hydrocarbons and additives.

REFERENCES:
patent: 2018778 (1935-10-01), Ebner
patent: 2076498 (1937-04-01), Farwell
patent: 3639229 (1972-02-01), Brownawell et al.
patent: 3791965 (1974-02-01), Fitzsimons et al.
patent: 3919076 (1975-11-01), Cutler et al.

Affiliated with

Also associated with

Rating

Rerefining of used motor oils does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rerefining of used motor oils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rerefining of used motor oils will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-337826