Method of rerefining oil by dilution, clarification and extraction
Patent
·
OSTI ID:6084050
Used oil is rerefined by diluting it with a non-polar diluent, removing insoluble impurities from the resulting solution, extracting said solution with an immiscible liquid extractant to remove further impurities, and finally removing extractant and diluent from the oil.
- Assignee:
- Lubrizol Corp.
- Patent Number(s):
- US 4154670
- OSTI ID:
- 6084050
- Country of Publication:
- United States
- Language:
- English
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