公开(公告)号：CA981702A

公开(公告)日：1976-01-13

申请号：CA156723

申请日：1972-11-14

Applicant: BASF AG

Inventor： SCHULZE GERHARD ,  WITTMAN GEORG ,  SLIWKA ARTUR

IPC: C07C7/167 ,  B01J23/00 ,  B01J23/60 ,  C07B61/00 ,  C07C1/00 ,  C07C5/08 ,  C07C7/00 ,  C07C11/04 ,  C07C67/00

Abstract: 1407434 Selective hydrogenation of acetylene BADISCHE-ANILIN- & SODA-FABRIK AG 14 Nov 1972 [15 Nov 1971] 52508/72 Heading C5E Minor amounts of acetylene in gas mixtures comprising mainly ethylene are selectively hydrogenated in the gas phase in the presence of a pallodium-on-silica catalyst which also contains zinc. The catalyst may have a Pd content of 0À001-1 wt per cent and a zinc content of 0À0005-2À5 wt. per cent. The gas mixture may originally contain up to 2 vol. per cent acetylene. The hydrogenation may be carried out 15- 70‹ C. at atmospheric or elevated pressure optionally in the presence of up to 4 p.p.m. by vol. carbon monoxide, using a H 2 : acetylene ratio of 1À5 : 1 to 2À5 : 1 by volume.