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Title:
【発明の名称】潤滑基油の製法
Document Type and Number:
Japanese Patent JP2890060
Kind Code:
B2
Abstract:
Lubricating base oils having a high viscosity index, preferably at least 135, are manufactured by catalytic hydroisomerisation of a hydrocarbonaceous feedstock, derived from a waxy crude oil, which feedstock has not been treated to remove a lubricating base oil fraction and which feedstock contains at least 30% by weight wax and has at least 80% by weight boiling above 300 DEG C and at most 30% by weight boiling above 540 DEG C.

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Inventors:
JONNMARIE AREKISANDAA BERUTOTSUKUSU
JONNKUROODO MAKISHIMIRIAN HORII
MAATEINASU MARIA PETORASU YANSEN
Application Number:
JP13552690A
Publication Date:
May 10, 1999
Filing Date:
May 28, 1990
Export Citation:
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Assignee:
SHERU INTERN RISAACHI MAACHATSUPII BV
International Classes:
C10G45/58; C10G45/60; C10G50/02; C10G67/04; C10G71/00; (IPC1-7): C10G45/58; C10G45/60; C10G67/04; C10G71/00
Domestic Patent References:
JP62112691A
JP6197386A
JP51146502A
JP55162347A
Attorney, Agent or Firm:
Kawahara Kazuho



 
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