Title:
【発明の名称】潤滑基油の製造方法
Document Type and Number:
Japanese Patent JP2678494
Kind Code:
B2
Abstract:
Process for the preparation of a lubricating base oil with a high viscosity index and a low pour point by catalytic dewaxing, which process comprises contacting under dewaxing conditions a feedstock containing at least part of the hydrocrackate of a wax-containing mineral oil fraction, which feedstock has a kinematic viscosity at 100 DEG C of at most 10 mm<2>/s, with a dewaxing catalyst. The invention further provides a lubricating mineral base oil comprising hydrocarbons with a boiling point of at least 250 DEG C, and having a viscosity index of at least 125 and a pour point of at most -20 DEG C.
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Inventors:
Jacques Lucien
Gilbert Deuteux
Gilbert Deuteux
Application Number:
JP387389A
Publication Date:
November 17, 1997
Filing Date:
January 12, 1989
Export Citation:
Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BESLOTEN VENNOOTSHAP
International Classes:
B01J29/50; B01J29/12; B01J29/40; B01J29/65; C10G45/58; C10G45/60; C10G65/12; C10G69/02; C10G73/38; C10M101/02; C10M171/02; C10N20/00; C10N20/02; C10N70/00; (IPC1-7): C10G45/60; B01J29/12; C10G65/12; C10G73/38; C10M101/02; C10M171/02
Other References:
【文献】欧州公開92376(EP,A1)
【文献】欧州特許178699(EP,B1)
【文献】欧州特許178699(EP,B1)
Attorney, Agent or Firm:
Kawahara Kazuho