公开(公告)号：DE59701393D1

公开(公告)日：2000-05-11

申请号：DE59701393

申请日：1997-07-10

Applicant: DEGUSSA

Inventor： HAAS DR ,  BROSSMER DR ,  MEIER DR ,  ARNTZ DR ,  FREUND DR

IPC: B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  C07B61/00 ,  C07C51/235 ,  C07C59/01

Abstract: The preparation of 3-hydroxypropionic acid (I) or its salts comprises by catalytic oxidation of 3-hydroxypropionaldehyde (II) with oxygen or oxygen-containing gas in the presence of a platinum-group noble metal M as catalyst in aqueous phase and isolation of (I) or its salts. The amount of M is 10 wt.% with respect to (II).