Refining of waste lube oil to prepare usable lubestock

Details Refining of waste lube oil to prepare usable lubestock Refining of waste lube oil to prepare usable lubestock

1975-12-18

1976-09-14

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Purifying used oil

208251H, C10M 1100

Patent

active

039805514

ABSTRACT:
Waste lube oil is refined by treating it with hydrogen in an ebullated bed of catalyst particles and subjecting the liquid effluent to vacuum distillation or other equivalent separation procedures to produce a clean and usable lubestock and a heavy residue which contains the sludge and metallic ingredients in the waste lube oil. This process finds its greatest utility in recovering usable lubricant from a waste product.

REFERENCES:
patent: 2952628 (1960-09-01), Fear
patent: 2987467 (1961-06-01), Keith et al.
patent: 3893911 (1975-07-01), Rovesti et al.
patent: 3901792 (1975-08-01), Wolk et al.

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