Title:
【発明の名称】高粘度指数低粘度潤滑油基油の製造方法
Document Type and Number:
Japanese Patent JP3057125
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 7.5 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 subjecting a mixture stock oil of (a) at least one of a heavy gas oil fraction and a vacuum gas oil fraction and (b) a slack wax 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
Motohiko Iwata
Yuji Yoshizumi
Yasuo Kinoshita
Motohiko Iwata
Yuji Yoshizumi
Yasuo Kinoshita
Application Number:
JP28706192A
Publication Date:
June 26, 2000
Filing Date:
October 02, 1992
Export Citation:
Assignee:
Nisseki Mitsubishi Corporation
International Classes:
C10G21/12; C10G45/32; C10G45/44; C10G45/60; C10G47/20; C10G65/12; C10G67/14; C10G73/08; B01J23/85; (IPC1-7): C10G67/14; B01J23/85; C10G21/12; C10G45/32; C10G45/44; C10G45/60; C10G47/20; C10G73/08
Domestic Patent References:
| JP3223393A | ||||
| JP3197594A | ||||
| JP51146502A | ||||
| JP5092905A | ||||
| JP51121005A | ||||
| JP4923204A | ||||
| JP463267B1 | ||||
| JP5717037B2 |
Attorney, Agent or Firm:
Nobuaki Sakaguchi