公开(公告)号：US3803028A

公开(公告)日：1974-04-09

申请号：US35427673

申请日：1973-04-25

Applicant: TEXACO INC

Inventor： CUMMINS B ,  ASHTON W ,  MEAD T ,  COLEMAN R

IPC: C10G45/44 ,  C10G47/02 ,  C10G49/00 ,  C10G37/10 ,  C01B33/28

CPC classification number: C10G49/007 ,  C10G2400/10

Abstract: The viscosity index of a lubricating oil is improved by contacting the oil at elevated temperature and pressure with a catalyst having hydrogenation activity in the presence of hydrogen and in the presence of carbon monoxide.

公开(公告)号：US3766055A

公开(公告)日：1973-10-16

申请号：US3766055D

申请日：1971-07-19

Applicant: TEXACO INC

Inventor： BRASHER J ,  ASKEW J ,  CUMMINS B ,  ASHTON W

IPC: C10G21/00 ,  C10G67/04 ,  C10G37/04

CPC classification number: C10G21/00 ,  C10G2400/10

Abstract: LUBRICATING OILS OF HIGH VISCOSITY INDES ARE PREPARED BY HYDROCRACKING AN APHALT-CONTAINING VACUUM RESIDUUM, RECOVERING A LUBE OIL FRACTION FROM THE PRODUCT AND SOLVENT REFINING THE RECOVERED LUBE OIL FRACTION.