公开(公告)号：US3787359A

公开(公告)日：1974-01-22

申请号：US3787359D

申请日：1972-01-11

Applicant: BASF AG

Inventor： HORN P ,  JOSCHEK H ,  SCHUSTER L ,  FALKENSTEIN G

IPC: C08G64/20 ,  C08G64/24 ,  C08G17/13

CPC classification number: C08G64/24 ,  C08G64/205

Abstract: CONTINUOUS MANUFACTURE OF HIGH MOLECULAR WEIGHT LINEAR POLYCARBONATES OF HIGH PURITY FROM ORGANIC DIHYDROXY COMPOUNDS AND PHOSGENE IN ONE OR MORE PACKED REACTORS, WHEREIN THE REACTION IS CARRIED OUT UNDER "TRANSITION FLOW" CONDITIONS, CONVENIENTLY WITH RECYCLING OF THE REACTION MIXTURE.

公开(公告)号：US3723541A

公开(公告)日：1973-03-27

申请号：US3723541D

申请日：1970-08-05

Applicant: BASF AG

Inventor： SCHUSTER L ,  OSTER R

IPC: C07C37/07 ,  C07C39/08

CPC classification number: C07C37/07 ,  C07C39/08

Abstract: A catalytic process for the manufacture of trimethyl hydroquinone by reducing trimethyl p-quinone with hydrogen in the presence of an aliphatic alcohol of from three to five carbon atoms as solvent at temperatures ranging from 60* to 180*C.

Abstract translation: 在三乙基氢醌的制备中，在碳原子数为3〜5的脂族醇作为溶剂存在下，在60〜180℃的温度下，用氢还原三甲基对醌。