公开(公告)号：US11104634B2

公开(公告)日：2021-08-31

申请号：US16311198

申请日：2017-06-22

申请人： BASF SE

发明人： Nicolas Vautravers ,  Joaquim Henrique Teles ,  Werner Pottgiesser ,  Henning Althoefer

IPC分类号： C07C51/00 ,  C07C51/235 ,  B01J21/18 ,  B01J23/42

摘要： A method for producing 2-methoxyacetic acid by oxidizing 2-methoxyethanol in a reaction device using oxygen at a temperature of 20 to 100° C. and an oxygen partial pressure of 0.01 to 2 MPa in the presence of water and a heterogeneous catalyst containing platinum, in which the method is carried out semi-continuously or continuously, and 2-methoxyethanol is added to the reaction device in a temporally and/or spatially distributed manner such that temporally and spatially, the mass ratio of 2-methoxyethanol to 2-methoxyethanol plus water per volume element in the reaction device is constantly ≤0.80 of the mass ratio of the added 2-methoxyethanol to the added 2-methoxyethanol plus water.