公开(公告)号：BR9400041A

公开(公告)日：1994-07-26

申请号：BR9400041

申请日：1994-01-06

Applicant: DEGUSSA

Inventor： BANKMANN MARTIN DR ,  BRAND REINHOLD DR ,  FREUND ANDREAS DR ,  TRACKE THOMAS DR

IPC: B01J23/40 ,  B01J37/02 ,  C07C1/207 ,  C07C1/22 ,  C07C17/00 ,  C07C29/141 ,  C07C33/20 ,  C07C33/46 ,  C07C41/01 ,  C07C43/164 ,  C07C43/17 ,  C07C51/347 ,  C07C51/367 ,  C07C51/487 ,  C07C51/377 ,  C07C27/04 ,  C07C65/03 ,  C07C63/04 ,  C07C63/06 ,  C07C43/20

Abstract: The invention relates to a process for the selective catalytic hydrogenation of the carbonyl group of aromatic aldehydes of the formula in which X can be a carboxyl group, a methyl group or halogen, to give the corresponding alcohols and methyl compounds. The catalytic hydrogenation is carried out with the addition of a solvent, if appropriate in the presence of organic acids, on a shaped supported catalyst containing a metal from the platinum group on a titanium oxide support in the presence of hydrogen at partial pressure of hydrogen of 5 to 50 bar and temperatures of from 100 to 300@C.