公开(公告)号：US3730909A

公开(公告)日：1973-05-01

申请号：US3730909D

申请日：1966-04-05

Applicant: SHELL OIL CO

Inventor： ARMSTRONG W ,  VOGE H

IPC: C06D5/04 ,  B01J11/82

CPC classification number: C06D5/04

Abstract: IMPROVED CATALYSTS FOR THE DECOMPOSITION OF HYDRAZINE AND LOWER ALKYL-SUBSTITUTED HYDRAZINES COMPRISE A PLATINUM GROUP METAL CATALYST IN COMBINATION WITH A SOLID OXIDIZER HYPERGOLIC ON A POROUS, INORGANIC SOLID SUPPORT.

公开(公告)号：US3726811A

公开(公告)日：1973-04-10

申请号：US3726811D

申请日：1971-05-07

Applicant: SHELL OIL CO

Inventor： TOOMBS A ,  ARMSTRONG W

IPC: B01J20/08 ,  C01F7/02 ,  B01J11/40

CPC classification number: B01J20/08 ,  C01F7/021 ,  C01P2006/12 ,  Y10S502/507

Abstract: ALPHA ALUMINA OF RELATIVELY HIGH SURFACE AREA IS PRODUCED BY (1) IMPREGNATING COMMERCIAL ALUMINA XEROGEL WITH CARBON-FORMING MATERIAL, (2) HEATING AT MEDIUM TEMPERATURE TO CARBONIZE, (3) HEATING THE RESULTING CARBON-CONTAINING ALUMINA AT VERY HIGH TEMPERATURE IN INERT ATMOSPHERE THEREBY CONVERTING TO ALPHA ALUMINA OF RELATIVELY HIGH SURFACE AREA WHILE PREVENTING REACTIVE SINTERING DURING PHASE CHANGE, AND (4) FINALLY REMOVING THE CARBON THEREFROM BY CONVERSION OF THE CARBON TO A GASEOUS CARBON COMPOUND.