公开(公告)号：US3803054A

公开(公告)日：1974-04-09

申请号：US22378372

申请日：1972-02-04

Applicant: HOECHST AG

Inventor： HABIG K ,  BAESSLER K

IPC: B01J21/18 ,  B01J23/40 ,  B01J23/42 ,  B01J37/20 ,  B01J11/74

CPC classification number: B01J23/42 ,  B01J21/18 ,  B01J23/40 ,  B01J37/20

Abstract: Sulfited platinum on carbon catalysts being useful in the selective hydrogenation of halonitroaromatic compounds are obtained by saturating a particulate platinum on carbon catalyst with hydrogen in an acidic aqueous medium and treating it with defined amounts of a sulfitizing agent. Said catalysts maintain their activity and selectivity for numerous hydrogenations.

公开(公告)号：US3761425A

公开(公告)日：1973-09-25

申请号：US3761425D

申请日：1971-02-19

Applicant: HOECHST AG

Inventor： BAESSLER K ,  MAYER K

IPC: B01J23/42 ,  B01J37/20 ,  B01J11/74

CPC classification number: B01J23/42 ,  B01J37/20

Abstract: SULFIDED PLATINUM ON CARBON CTALYST BEING USEFUL IN THE SELECTIVE HYDROGENATION OF HALONITROAROMATES ARE OBTAINED BY SATURATING A PARTICULATE PLATINUM ON CARBON CATALYST WITH HYDROGEN IN ACIDIC AQUEOUS MEDIUM AND TREATING IT WITH DEFINED AMOUNTS OF A SULFIDIZING AGENT, SAID CATALYSTS MAINTAIN THEIR ACTIVITY AND SLECTIVITY FOR NUMEROUS HYDROGENATIONS.