公开(公告)号：US20230025816A1

公开(公告)日：2023-01-26

申请号：US17784573

申请日：2020-12-01

Applicant: BASF SE

Inventor： Michael SCHOENHERR ,  Kati SCHMIDT ,  Johannes Felix HAUS ,  Michael Klemens MUELLER ,  Frank JAEKEL ,  Marta REINOSO GARCIA ,  Volker KLOCK

IPC: C11D3/20 ,  C11D1/52 ,  C11D3/37 ,  C11D11/02

Abstract: Process for making a granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of iminodisuccinic acid (IDS), and, optionally, (B) at least one homo- or copolymer of (meth)acrylic acid, partially or fully neutralized with alkali, said process comprising the steps of (a) providing an aqueous solution or slurry containing chelating agent (A) and, if applicable, (co)polymer (B), (b) removing most of said water by spray granulation in a fluidized bed, (c) treating the resultant granule in a vessel of which at least one part rotates around a horizontal axis and wherein said vessel is selected from paddle mixers, free-fall mixers and plough share mixers.

公开(公告)号：US20160221931A1

公开(公告)日：2016-08-04

申请号：US15021398

申请日：2014-09-05

Applicant: BASF SE

Inventor： Marta REINOSO GARCIA ,  Markus HARTMANN ,  Kati SCHMIDT ,  Matthias RAULS ,  Thomas SCHMIDT ,  Paul KLINGELHOEFER ,  Alfred OFTRING ,  Somnath Shivaji KADAM

IPC: C07C229/24 ,  C07C227/36 ,  C11D3/33 ,  C07C253/00

CPC classification number: C07C229/24 ,  C07C227/18 ,  C07C227/36 ,  C07C229/16 ,  C07C253/00 ,  C11D3/33

Abstract: Mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA) or its respective mono-, di or trialkali metal or mono-, di- or triammonium salts, said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 75%.

Abstract translation: 甲基甘氨酸二乙酸（MGDA）或其相应的单 - ，二 - 或三 - 碱金属或一 - ，二 - 或三 - 铵盐的L-和D-对映异构体的混合物，所述混合物主要含有相应的L-异构体与对映体过量 ee）在10至75％的范围内。