公开(公告)号：US10676700B2

公开(公告)日：2020-06-09

申请号：US16086931

申请日：2017-03-29

Applicant: BASF SE

Inventor： Thomas Schmidt ,  Marta Reinoso Garcia ,  Carsten Sueling ,  Verena Mormul

IPC: C11D1/00 ,  C11D11/00 ,  C11D3/33 ,  C07C227/26 ,  C11D17/00

Abstract: The present invention is directed towards mixtures comprising (A) 90 to 99.999% by weight of racemic methyl glycine diacetic acid (MGDA) or of MGDA with predominantly the L-isomer in an enantiomeric excess of up to 9.5% or their respective mono-, di- or trialkali metal or mono-, di- or triammonium salts, and (B) in total 0.001 to 10% by weight of the diacetic acid derivative of aspartate as free acid or as mono-, di-, tri- or tetraalkali metal salt or as mono-, di-, tri- or tetraammonium salt, percentages referring to the sum from (A) and (B).