公开(公告)号：US12006487B2

公开(公告)日：2024-06-11

申请号：US17280066

申请日：2019-09-16

Applicant: BASF SE

Inventor： Frank Jaekel ,  Astrid Schmidt ,  Michael Klemens Mueller

IPC: C11D1/04 ,  B01J2/04 ,  B01J2/16 ,  C11D3/20 ,  C11D3/33 ,  C11D3/39 ,  C11D11/00 ,  C11D17/06

CPC classification number: C11D11/0082 ,  B01J2/04 ,  B01J2/16 ,  C11D1/04 ,  C11D3/33 ,  C11D3/3942 ,  C11D17/06

Abstract: Process for making a powder or granule containing



(A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of glutamic acid diacetate (GLDA) and of iminodisuccinic acid (IDS),
(B) at least one alkali metal salt of a C10-C20 fatty acid,


in a weight ratio of (A):(B) of from 40:1 up to 1,000:1,
wherein said powder or granule contains at least 75% by weight of chelating agent (A),
said process comprising the steps of

(c) mixing the at least one chelating agent (A) and the at least one alkali metal salt of fatty acid (B) in the presence of water,
(d) removing most of said water by spray-drying or by spray granulation using a gas with an inlet temperature of at least 125° C.

公开(公告)号：US10975334B2

公开(公告)日：2021-04-13

申请号：US16060148

申请日：2016-12-01

Applicant: BASF SE

Inventor： Frank Jaekel ,  Michael Klemens Mueller

IPC: C11D3/33 ,  C11D11/00 ,  C11D11/02 ,  C11D7/32 ,  C11D3/20 ,  C11D3/04 ,  C07C227/40

Abstract: Process for manufacturing granules of at least one alkali metal salt of aminopolycarboxylic acid (A), comprising the steps of (a) providing an aqueous slurry of alkali metal salt of aminopolycarboxylic acid (A), (b) maintaining said aqueous slurry at a temperature in the range of from 50 to 90° C. over a period of time in the range of from 2 to 180 hours, (c) spray granulating said slurry with a gas inlet temperature of at least 150° C.

公开(公告)号：US11008256B2

公开(公告)日：2021-05-18

申请号：US16094557

申请日：2017-04-07

Applicant: BASF SE

Inventor： Radoslaw Kierat ,  Michael Klemens Mueller ,  Andreas Kempter ,  Oscar Lafuente Cerda ,  Kai Bergner

IPC: B05D7/00 ,  B32B5/16 ,  C04B20/10 ,  C04B28/02 ,  C04B40/06 ,  C04B22/06 ,  C04B111/00 ,  C04B111/34 ,  C04B111/60 ,  C04B111/70 ,  C04B111/72 ,  C04B111/62 ,  C04B111/28

Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.

公开(公告)号：US12006277B2

公开(公告)日：2024-06-11

申请号：US17059540

申请日：2019-05-21

Applicant: BASF SE

Inventor： Frank Jaekel ,  Michael Klemens Mueller

IPC: C07C227/42 ,  C07C229/12

CPC classification number: C07C227/42 ,  C07B2200/13 ,  C07C229/12 ,  C07C227/42 ,  C07C229/04

Abstract: A process for making solid methylglycine diacetate (MGDA) alkali metal salt (a) includes:



(A) providing a 40 to 60% by weight aqueous solution of the MGDA salt having a temperature in the range of from 50 to 90° C.,
(B) adding solid salt (a),
(C) heating the resultant slurry until the salt (a) added in step (B) has dissolved at least partially,
(D) allowing salt (a) to crystallize, and
(E) removing crystalline salt (a) from the mother liquor.

公开(公告)号：US11485703B2

公开(公告)日：2022-11-01

申请号：US16626026

申请日：2018-06-19

Applicant: BASF SE

Inventor： Thomas Schmidt ,  Armin Stamm ,  Marta Reinoso Garcia ,  Verena Mormul ,  Michael Klemens Mueller ,  Frank Jaekel ,  Jeremy T Manning

IPC: C07C227/26 ,  C07C229/16

Abstract: The present invention is directed towards a process for manufacturing a complexing agent, said process comprising the steps of (a) Providing a nitrile according to general formula (I a) or (I b) With M being selected from alkali metal and hydrogen and combinations thereof, (b) Saponification with a total alkali amount of 2.5 to 2.9 mol of alkali metal hydroxide per mole of nitrile according to general formula (I a) or (I b), respectively, and a pH value in the range of from 9.5 to 11.5 at the end of step (b), (c) Adding an amount of alkali metal hydroxide so that the total alkali content is 2.9 to 3.15 moles per mole nitrile according to general formula (I a) or (I b), respectively, and (d) Allowing further conversion.

公开(公告)号：US20210206712A1

公开(公告)日：2021-07-08

申请号：US17059540

申请日：2019-05-21

Applicant: BASF SE

Inventor： Frank Jaekel ,  Michael Klemens Mueller

IPC: C07C227/42

Abstract: A process for making solid methylglycine diacetate (MGDA) alkali metal salt (a) includes: (A) providing a 40 to 60% by weight aqueous solution of the MGDA salt having a temperature in the range of from 50 to 90° C., (B) adding solid salt (a), (C) heating the resultant slurry until the salt (a) added in step (B) has dissolved at least partially, (D)allowing salt (a) to crystallize, and (E) removing crystalline salt (a) from the mother liquor.

公开(公告)号：US10668156B2

公开(公告)日：2020-06-02

申请号：US13919092

申请日：2013-06-17

Applicant: BASF SE

Inventor： Karl Kolter ,  Maximilian Angel ,  Matthias Karl ,  Silke Gebert ,  Michael Klemens Mueller

IPC: A61K47/32 ,  A61K9/16 ,  A61K9/14

Abstract: Described are solid dispersions of hydrophobic active ingredients and cationic copolymers of N,N-diethylaminoethyl methacrylate and methyl methacrylate in a weight ratio of the monomers of from 35:65 to 55:45. Also described are the preparation and use of such solid dispersions for pharmaceutical dosage forms.

公开(公告)号：US11518965B2

公开(公告)日：2022-12-06

申请号：US16857791

申请日：2020-04-24

Applicant: BASF SE

Inventor： Markus Hartmann ,  Marta Reinoso Garcia ,  Michael Klemens Mueller ,  Roland Boehn ,  Markus Christian Biel

IPC: C11D3/33 ,  C11D3/37 ,  C11D3/39 ,  C11D11/02 ,  C11D17/06

Abstract: The present invention is directed towards a process for making a powder or granule containing (A) at least one chelating agent selected from methyl glycine diacetic acid (MGDA) and glutamic acid diacetate (GLDA) and iminodisuccinic acid (IDS) and their respective alkali metal salts, (B) at least one homo- or copolymer of (meth)acrylic acid, partially or fully neutralized with alkali, said process comprising the steps of (a) mixing the at least one chelating agent (A) and the at least one homo- or copolymer (B) in the presence of water, (b) removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of at least 125° C.

公开(公告)号：US11028350B2

公开(公告)日：2021-06-08

申请号：US16309339

申请日：2017-06-01

Applicant: BASF SE

Inventor： Michael Klemens Mueller ,  Armin Stamm ,  Frank Jaekel ,  Carsten Sueling

IPC: C11D7/26 ,  C11D7/32 ,  C11D11/00 ,  C11D3/33 ,  C11D11/02 ,  C07C229/16 ,  C07C227/00 ,  C07C227/44 ,  C11D3/37

Abstract: Process for making a powder or granule containing at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and glutamic acid diacetate (GLDA) and iminodisuccinic acid (IDS), said process comprising the steps of (a) introducing an aqueous solution or aqueous slurry of the respective chelating agent (A) into a spray-dryer or spray-granulator, and removing most of said water by spray-drying or spray granulation using a gas with an inlet temperature of 125 to 250° C., (b) withdrawingpowder or granules, respectively, from the spray-dryer or spray-granulator, respectively, (c) separating off fines from said powder or granules, wherein said fines have a maximum particle diameter of 350 μm, (d) separating off lumps from said powder or granules, wherein said lumps have a particle diameter of 1,500 μm or more, (e) milling said lumps to a maximum particle diameter of 500 μm, (f) re-introducing said fines from step (c) and milled lumps from step (e) into the spray-dryer or spray-granulator, wherein the share of fines is in the range of from 0.5 to 20% by weight of the total chelating agent (A) withdrawn in step (b) and the share of milled lumps is in the range of from 5 to 60% by weight of the total chelating agent (A) withdrawn in step (b).

公开(公告)号：US09969849B2

公开(公告)日：2018-05-15

申请号：US15119857

申请日：2015-02-16

Applicant: BASF SE

Inventor： Joerg Erbes ,  Gerhard Lange ,  Tobias Kortekamp ,  Bernhard Linner ,  Cecile Schneider ,  Angela Ulzhoefer ,  Robert Heinz ,  Michael Klemens Mueller

IPC: C08J3/14 ,  C08G75/20 ,  C08G75/23 ,  B29B13/06 ,  F26B5/14 ,  C08J3/12 ,  F26B3/08

CPC classification number: C08J3/14 ,  B29B13/065 ,  C08J3/12 ,  C08J2381/06 ,  F26B3/08 ,  F26B5/14 ,  F26B2200/08

Abstract: The present invention relates to a process for drying particulate polymers, comprising the steps of: a) providing a particulate polymer comprising from 60 wt % to 90 wt % of at least one solvent based on the total weight of particulate polymer and solvent, b) mechanically predrying the particulate polymer to a content of the at least one solvent of from 20 wt % to 50 wt % based on the total weight of particulate polymer and solvent, wherein the mechanical predrying in step b) is carried out with a roller press, and c) end-drying the particulate polymer to a content of the at least one solvent of from 0 wt % to 15 wt % based on the total weight of particulate polymer and solvent, wherein the particulate polymer is a polymer comprising repeating units of formulae I, II and/or III The present invention further relates to a process for working up particulate polymers.