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Title:
The manufacturing method, the lubricating oil base oil, and the lubricating oil composition of lubricating oil base oil
Document Type and Number:
Japanese Patent JP5913174
Kind Code:
B2
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:
Teppei Tsujimoto
Sugawara Everlasting
Application Number:
JP2013065991A
Publication Date:
April 27, 2016
Filing Date:
March 27, 2013
Export Citation:
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Assignee:
jx energy corporation
International Classes:
C10M177/00; C10G7/06; C10M101/02; C10M111/04
Domestic Patent References:
JP2004182931A
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano