公开(公告)号：US20180237728A1

公开(公告)日：2018-08-23

申请号：US15554466

申请日：2016-03-02

Applicant: BASF SE

Inventor： Constanze FRANZKE ,  Marta REINOSO GARCIA ,  Robert BAUMANN ,  Thomas GREINDL

IPC: C11D3/33 ,  C07C253/00 ,  C07C227/18

CPC classification number: C11D3/33 ,  C07C227/18 ,  C07C253/00 ,  C07C253/06 ,  C07C255/25 ,  C07C229/16 ,  C07C229/24

Abstract: Process for preparation of a mixture of methyl glycine diacetic acid (MGDA) or its respective mono-, di-, trialkali metal salt or its respective mono-, di- or tri-ammonium salt or mixtures thereof, and glutamic acid diacetic acid (GLDA) or its respective mono-, di-, tri-, or tetra-alkali metal or mono-, di-, tri- or tetra-ammonium salt or mixtures thereof, wherein said process com-prises the steps of: (a) dissolution in water of (a1) alanine in its L- or D-enantiomeric form or its respective monoalkali metal salt or mixtures thereof, and (a2) glutamic acid as L- or D-enantiomer or its respective mono-, or dialkali metal or mixtures thereof, wherein the molar ratio of alanine to glutamic acid is in the range of from 1:9 to 9:1, (b) converting the mixture obtained in step (a) with formaldehyde and hydrocyanic acid or alkali metal cyanide to the corresponding dinitriles, (c) saponification of the dinitriles resulting from step (b).

公开(公告)号：US20160130531A1

公开(公告)日：2016-05-12

申请号：US14893859

申请日：2014-05-13

Applicant: BASF SE

Inventor： Markus Christian BIEL ,  Thomas GREINDL ,  Markus HARTMANN ,  Wolfgang STAFFEL ,  Marta REINOSO GARCIA

IPC: C11D3/33 ,  C11D3/34 ,  C11D3/20

CPC classification number: C11D3/33 ,  C11D3/2079 ,  C11D3/3409 ,  C11D7/264 ,  C11D7/265 ,  C11D7/3245 ,  C11D7/34

Abstract: Aqueous solution comprising (A) in the range of from 30 to 60% by weight of a complexing agent, selected from the alkali metal salts of methylglycine diacetic acid and the alkali metal salts of glutamic acid diacetic acid, (B) in the range of from 1 to 25% by weight of at least one salt of a sulfonic acid or of an organic acid, percentages referring to the total respective aqueous solution.

Abstract translation: 水溶液，其包含（A）30-60重量％的选自甲基甘氨酸二乙酸的碱金属盐和谷氨酸二乙酸的碱金属盐的络合剂，（B）的范围为 1至25重量％的至少一种磺酸或有机酸盐，相对于各自水溶液的百分数。

公开(公告)号：US20160097020A1

公开(公告)日：2016-04-07

申请号：US14892820

申请日：2014-05-13

Applicant: BASF SE

Inventor： Markus Christian BIEL ,  Thomas GREINDL ,  Markus HARTMANN ,  Wolfgang STAFFEL ,  Marta REINOSO GARCIA

IPC: C11D3/37 ,  F17D1/08 ,  C11D3/33

CPC classification number: C11D3/3723 ,  C11D3/33 ,  C11D7/3245 ,  F17D1/08

Abstract: Aqueous solution comprising (A) in the range of from 30 to 60% by weight of a complexing agent, selected from the alkali metal salts of methylglycine diacetic acid and the alkali metal salts of glutamic acid diacetic acid, (B) in the range of from 700 ppm to 7% by weight of a polymer being selected from polyamines, the N atoms being partially or fully substituted with CH2COOH groups, partially or fully neutralized with alkali metal cations, ppm and percentages referring to the total respective aqueous solution

Abstract translation: 水溶液，其包含（A）30-60重量％的选自甲基甘氨酸二乙酸的碱金属盐和谷氨酸二乙酸的碱金属盐的络合剂，（B）的范围为 从700ppm至7wt％的选自多胺的聚合物，N原子部分或完全被CH 2 COOH基团取代，部分或完全用碱金属阳离子中和，ppm和百分比指总相应的水溶液