Invention Publication
- Patent Title: PROCESS FOR MAKING A PARTICULATE COATED ORGANIC SALT, AND PARTICULATE COATED SALT
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Application No.: US18548582Application Date: 2022-02-24
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Publication No.: US20240166977A1Publication Date: 2024-05-23
- Inventor: Verena STREMPEL , Marta REINOSO GARCIA , Daniel LOEFFLER , Carsten SUELING
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Priority: EP 160598.5 2021.03.04
- International Application: PCT/EP2022/054695 2022.02.24
- Date entered country: 2023-09-01
- Main IPC: C11D17/00
- IPC: C11D17/00 ; C11D3/12 ; C11D3/16 ; C11D3/33
Abstract:
Process for making a particulate coated chelating agent (A) wherein said process comprises the following steps:
(a) Providing a granule or powder containing an alkali metal salt of methyl glycine diacetic acid (MGDA) or glutamic acid diacetic acid (GLDA), preferably with a moisture content in the range of from 1 to 15% by weight,
(b) treating said salt with a metal alkoxide or metal halide or metal amide or alkyl metal compound or with an alkoxide, amide, halide or alkyl compound of silicon,
(c) treating the material obtained in step (b) with moisture or
(c*) with ozone,
(d) optionally, repeating the sequence of steps (b) and (c) once to 25 times.
(a) Providing a granule or powder containing an alkali metal salt of methyl glycine diacetic acid (MGDA) or glutamic acid diacetic acid (GLDA), preferably with a moisture content in the range of from 1 to 15% by weight,
(b) treating said salt with a metal alkoxide or metal halide or metal amide or alkyl metal compound or with an alkoxide, amide, halide or alkyl compound of silicon,
(c) treating the material obtained in step (b) with moisture or
(c*) with ozone,
(d) optionally, repeating the sequence of steps (b) and (c) once to 25 times.
Information query
