Title:
高級合成潤滑剤基油
Document Type and Number:
Japanese Patent JP5033280
Kind Code:
B2
Abstract:
A premium synthetic lubricating oil base stock having a high VI and low pour point is made by hydroisomerizing a Fischer-Tropsch synthesized waxy, paraffinic feed wax and then dewaxing the hydroisomerate to form a 650-750°F+ dewaxate. The waxy feed has an initial boiling point in the range of about 650-750°F, from which it continuously boils up to at least 1050°F and has a T 90 -T 10 temperature difference of at least 350°F. The feed is preferably hydroisomerized without any pretreatment, other than optional fractionation. The 650-750°F+ dewaxate is fractionated into two or more base stocks of different viscosity.
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Inventors:
Berlowitz, Paul, Joe Jeff
Habibe, Jacob, Joe Jeff
Wittenbrink, robert, jay
Habibe, Jacob, Joe Jeff
Wittenbrink, robert, jay
Application Number:
JP2000568928A
Publication Date:
September 26, 2012
Filing Date:
August 24, 1999
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
C10G2/00; C10G67/04; C10G45/58; C10G45/60; C10G45/62; C10G45/64; C10G65/04; C10G67/00; C10G73/06; C10M105/04; C10M111/00; C10N20/00; C10N70/00
Domestic Patent References:
| JP1301789A | ||||
| JP9221685A | ||||
| JP1228554A |
Foreign References:
| WO1997021788A1 |
Attorney, Agent or Firm:
Kenji Kawabi