Title:
【発明の名称】高粘度指数低粘度潤滑油基油の製造法
Document Type and Number:
Japanese Patent JP3065816
Kind Code:
B2
Abstract:
A process for the production of a high viscosity index, low viscosity lubricating base oil having a kinematic viscosity of 3.0 to 5.0 mm<2>/s at 100 DEG C, a viscosity index of 120 or more and a pour point of -10 DEG C or less, while simultaneously producing a high quality fuel oil, which includes using at least one of a heavy gas oil fraction and a light vacuum gas oil fraction as a stock oil that contains about 60% by volume or more of distillate components within a distillation temperature range of from about 370 to about 480 DEG C and about 50% by mass or more of saturated hydrocarbons, subjecting the stock oil to hydrocracking in the presence of an amorphous silica alumina catalyst, separating the cracked product into a fuel oil fraction and a lubricating oil fraction by atmospheric distillation, and subsequently subjecting the lubricating oil fraction to dewaxing, optionally applying at least one of solvent refining and hydrofinishing.
Inventors:
Tetsuo Takifuji
Kazuki Inaba
Yasuo Kinoshita
Teruhiko Sasaki
Kazuki Inaba
Yasuo Kinoshita
Teruhiko Sasaki
Application Number:
JP28706392A
Publication Date:
July 17, 2000
Filing Date:
October 02, 1992
Export Citation:
Assignee:
Nisseki Mitsubishi Corporation
International Classes:
C10G7/00; C10G21/00; C10G45/02; C10G47/20; C10G65/12; C10G67/04; C10G67/14; C10G71/00; C10G73/02; (IPC1-7): C10G67/04; C10G67/14; C10G71/00
Domestic Patent References:
| JP3223393A | ||||
| JP3197594A | ||||
| JP51121005A | ||||
| JP463267B1 |
Attorney, Agent or Firm:
Nobuaki Sakaguchi