Title:
【発明の名称】無灰分原料油の製造方法
Document Type and Number:
Japanese Patent JPS5834516
Kind Code:
B2
Abstract:
A process for the production of an essentially ash-free oil stock from a lubricating oil containing ash-forming components comprising (a) contacting said lubricating oil with an aqueous ammonium salt treating agent; (b) removing a major portion of the water from the mixture resulting from combining said aqueous solution and said lubricating oil; (c) heating at least a portion of the product resulting from step (b) at a temperature in the range of about 320 DEG to about 420 DEG C. for a period of time sufficient to decompose at least a portion of any ammonium salts of sulfonic acid and dialkyldithiophosphoric acid that are contained therein; (d) cooling the product from step (c) to a temperature in the range of about 150 DEG to about 180 DEG C.; and (e) separating the solids from the product of step (d), optionally with subsequent hydrotreating and stripping of the oil thus obtained.
Inventors:
MAABIN MERIRU JONSON
GAAHAADO HOORU NOWATSUKU
DONARUDO KARUBIN TABURAA
BOBII JIIN GUREI
GAAHAADO HOORU NOWATSUKU
DONARUDO KARUBIN TABURAA
BOBII JIIN GUREI
Application Number:
JP15370580A
Publication Date:
July 27, 1983
Filing Date:
October 31, 1980
Export Citation:
Assignee:
PHILLIPS PETROLEUM CO
International Classes:
C10G29/00; C10G29/02; C10G67/02; C10M175/00; C10N40/00; C10N40/08; C10N40/25; (IPC1-7): C10G29/02; C10G67/02; C10M11/00
Attorney, Agent or Firm:
Asamura Akira