Title:
WIDE-CUT SYNTHETIC ISOPARAFFINIC LUBRICATING OILS
Document Type and Number:
WIPO Patent Application WO2000015736
Kind Code:
A3
Abstract:
A wide-cut lubricant base stock is made by hydroisomerizing and then catalytically dewaxing a waxy Fischer-Tropsch synthesized hydrocarbon fraction feed and comprises the entire dewaxate having an initial boiling point in the 650-750 DEG F+ range. Formulated lubricating oils made by admixing the base stock with a commercial automotive additive package meet all specifications, including low temperature properties, for multigrade internal combustion engine crankcase oils. The waxy feed has an initial boiling point in the 650-750 DEG F range and continuously boils to an end point of at least 1050 DEG F+. Lower boiling hydrocarbons produced by the process are separated from the base stock by simple flash distillation. The base stock comprises the entire dewaxate having an initial boiling point in the 650-750 DEG F range.
Inventors:
WITTENBRINK ROBERT JAY
RYAN DANIEL FRANCIS
BERLOWITZ PAUL JOSEPH
HABEEB JACOB JOSEPH
RYAN DANIEL FRANCIS
BERLOWITZ PAUL JOSEPH
HABEEB JACOB JOSEPH
Application Number:
PCT/US1999/018948
Publication Date:
December 20, 2001
Filing Date:
August 24, 1999
Export Citation:
Assignee:
EXXON RESEARCH ENGINEERING CO (US)
International Classes:
C10G2/00; C10G65/02; C10G65/04; C10G67/02; C10M105/04; C10N30/02; C10N30/08; C10N40/25; C10N70/00; (IPC1-7): C10G65/04
Foreign References:
| US5882505A | 1999-03-16 | |||
| EP0668342A1 | 1995-08-23 | |||
| US4599162A | 1986-07-08 |
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