Title:
METHOD FOR PRODUCING LUBRICANT BASE OIL, LUBRICANT BASE OIL, AND LUBRICANT COMPOSITION
Document Type and Number:
Japanese Patent JP2014189625
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a lubricant base oil which can provide steadily and inexpensively a lubricant base oil of VG 32 or VG 46 grade having a flash point of 250°C or higher, and can further suppress oxidative degradation of the lubricant base oil sufficiently.SOLUTION: Provided is a method for producing a lubricant base oil, including steps of: introducing a raw material into a distillation column, the raw material containing a mineral oil having a flash point of less than 250°C, a viscosity index of 110 or more, and kinetic viscosity of 40 mm/s or less; distilling off a light fraction from the raw material to leave a lubricant base oil having a flash point of 250°C or higher, a viscosity index of 120 or more, and kinetic viscosity of 50.6 mm/s or less to reside in the distillation column; and recovering the lubricant base oil from the distillation column.
Inventors:
TSUJIMOTO TEPPEI
SUGAWARA TSUNETOSHI
SUGAWARA TSUNETOSHI
Application Number:
JP2013065991A
Publication Date:
October 06, 2014
Filing Date:
March 27, 2013
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP
International Classes:
C10M177/00; C10G7/06; C10M101/02; C10M107/02; C10N20/00; C10N20/02; C10N30/00; C10N40/00; C10N40/02; C10N40/04; C10N40/08; C10N40/20; C10N40/22; C10N40/24; C10N40/30; C10N70/00
Domestic Patent References:
| JP2004182931A | 2004-07-02 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
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