公开(公告)号：US3899446A

公开(公告)日：1975-08-12

申请号：US43846774

申请日：1974-01-31

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  KASUTANI KATSUJI ,  MATSUDA MORIO ,  HASHIMOTO AKIO ,  NISIGAWA SHIYOZO ,  SAWAMOTO YOUZI

IPC: C07C29/136 ,  B01J23/86 ,  B01J37/16 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/125 ,  C07C67/00 ,  B01J23/16 ,  B01J23/64 ,  B01J23/84

CPC classification number: B01J37/16 ,  B01J23/868 ,  C07C29/149 ,  C07C31/125 ,  C07C33/025

Abstract: A process for preparing copper-chromium catalysts is provided, in which 0.5-3 moles of chromic acid anhydride are dissolved in water, the resulting solution is added and reacted with 1 mole of cupric oxide, 0.1-1 mole (as formaldehyde) of a reducing agent which will be converted into carbon dioxide and water by oxidation is added thereto and reacted, further 0.9-8.0 moles of ammonia are added thereto and reacted, and the resulting product is dried by evaporation and calcined to obtain the desired catalyst.

公开(公告)号：DE2404757A1

公开(公告)日：1974-08-15

申请号：DE2404757

申请日：1974-02-01

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  KASUTANI KATSUJI ,  MATSUDA MORIO ,  HASHIMOTO AKIO ,  NISIGAWA SHIYOZO ,  SAWAMOTO YOUZI

IPC: C07C29/136 ,  B01J23/86 ,  B01J37/16 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/125 ,  C07C67/00 ,  B01J11/22