Title:
【発明の名称】潤滑基油の製造方法
Document Type and Number:
Japanese Patent JPH072952
Kind Code:
B2
Abstract:
Process for the manufacture of lubricating base oils from nitrogen-containing distillates and/or deasphalted oils by subjecting them to a catalytic hydrotreatment which may be followed by a dewaxing treatment, wherein distillates and/or deasphalted oils having a nitrogen content which numerically expressed exceeds the value f.PH2.Sv<-><1>, wherein f is a constant relating to the viscosity of the final base oil, PH2 represents the hydrogen partial pressure in bar applied in the catalytic hydrotreatment and Sv represents the weighted hourly space velocity in t/m<3>.h at which the catalytic hydrotreatment is carried out, are subjected to a preceding solvent extraction.
Inventors:
Gerhard George Baile
Henrix Michael Josef Biouard
Marteinus Maria Petrus Janssen
Henrix Michael Josef Biouard
Marteinus Maria Petrus Janssen
Application Number:
JP22503385A
Publication Date:
January 18, 1995
Filing Date:
October 11, 1985
Export Citation:
Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BESLOTEN VENNOOTSHAP
International Classes:
C10G67/04; (IPC1-7): C10G67/04
Domestic Patent References:
| JP54116005A | ||||
| JP59147083A | ||||
| JP6055083A | ||||
| JP60120793A |
Attorney, Agent or Firm:
Kawahara Kazuho
Next Patent: FLEXIBLE CYCLOOLEFIN COPOLYMER FILM