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U.S. Department of Energy
Office of Scientific and Technical Information

Lube oil blend process and composition

Patent ·
OSTI ID:5041418
A process for producing a lube oil blend from (1) a gas oil selected from the group consisting of atmospheric and vacuum gas oils having normal boiling point ranges in the range 260 to 565/sup 0/C, and (2) a raw hydrocrackate lube oil stock comprising: producing a raffinate lube oil stock having, relative to said gas oil, a superior sunlight stability by contracting said gas oil with a suitable solvent under solvent-extracting conditions; and producing said blend by admixing said raffinate and raw stock, said blend (1) containing, in parts by volume, for each 100 parts of raffinate an amount of the raw stock in the range of from about 10 to 45 parts, and (2) exhibiting sunlight stability which is at least equivalent to that of said raffinate stock.
Assignee:
Chevron Research Co
Patent Number(s):
US 4213845
OSTI ID:
5041418
Country of Publication:
United States
Language:
English