公开(公告)号：WO2021165144A1

公开(公告)日：2021-08-26

申请号：PCT/EP2021/053369

申请日：2021-02-11

Applicant: BASF SE

Inventor： VOGES, Matthias ,  SEIDEMANN, Lothar ,  RITTER, Anika ,  SCHMIDT, Astrid ,  HARTMANN, Markus ,  KOENIG, Hartmut ,  JAEKEL, Frank ,  CHUA, Rou, Hua ,  MUELLER, Michael, Klemens

IPC: C07C227/42 ,  C11D1/00 ,  C07C229/16

Abstract: Process for making solid methylglycine diacetate (MGDA) alkali metal salt (A), said process comprising the steps of (a) providing a 40 to 60% by weight aqueous solution of said salt (A) having a temperature in the range of from 50 to 90°C, (b) crystallizing salt (A), (c) removing said crystalline salt (A) from the mother liquor by filtration, and (d) subjecting the water containing filter cake from step (c) to an extrusion step.

公开(公告)号：EP4107144A1

公开(公告)日：2022-12-28

申请号：EP21704547.5

申请日：2021-02-11

Applicant: BASF SE

Inventor： VOGES, Matthias ,  SEIDEMANN, Lothar ,  RITTER, Anika ,  SCHMIDT, Astrid ,  HARTMANN, Markus ,  KOENIG, Hartmut ,  JAEKEL, Frank ,  CHUA, Rou, Hua ,  MUELLER, Michael, Klemens

IPC: C07C227/42 ,  C11D1/00 ,  C07C229/16