skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Process for reclaiming used lubricating oil

Patent ·
OSTI ID:6015480

A used lubricating oil is reclaimed by vacuum distillation. The bottoms is vacuum pyrolyzed with limestone to form a virtually insoluble coked mass containing insoluble metal carbonates and free metal. This solid coked residuum is suitable for landfilling.

Assignee:
Texaco Inc.
Patent Number(s):
US 4490245
OSTI ID:
6015480
Resource Relation:
Patent File Date: Filed date 9 Apr 1984; Other Information: PAT-APPL-598100
Country of Publication:
United States
Language:
English