-
1.发明授权Process of regenerating a noble metal hydrogenation catalyst used in hydrogen peroxide production by the anthraquinone process 失效再生氢过氧化氢生产过程中使用的NOBLE金属氢化催化剂的工艺
公开(公告)号：US3901822A
公开(公告)日：1975-08-26
申请号：US41563173
申请日：1973-11-14
Applicant: FMC CORP
Inventor： BROWNING JHONCE N , LEE NATHAN D , SMEE GEORGE H
IPC: B01J23/96 , B01J38/06 , C01B15/023 , B01J11/18 , B01J11/14
CPC classification number: C01B15/023 , B01J23/96 , Y02P20/584
Abstract: This invention describes a process for regenerating deactivated noble metal hydrogenation catalysts to restore their catalytic activity. The process involves contacting a deactivated noble metal hydrogenation catalyst with a polar organic solvent, then contacting the solvent-treated catalyst with an aqueous ammonium hydroxide solution followed by contacting the ammonium hydroxidetreated catalyst with steam and an oxygen-containing gas at temperatures from about 250*C to the transition temperature of the catalyst crystal structure whereby the catalytic activity of the catalyst is substantially improved.
Search Results
1
records
(took 0.008 seconds)
