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    PROCESS FOR MANUFACTURING GRANULES, AND GRANULES AND THEIR USE
    11.
    发明申请
    PROCESS FOR MANUFACTURING GRANULES, AND GRANULES AND THEIR USE 审中-公开

    公开(公告)号：US20200181537A1

    公开(公告)日：2020-06-11

    申请号：US16316266

    申请日：2017-07-05

    Applicant: BASF SE

    Inventor： Marta REINOSO GARCIA ,  Michael Klemens MUELLER ,  Carsten SUELING ,  Verena MORMUL

    IPC: C11D3/33 ,  C11D17/00 ,  C11D17/06 ,  C11D11/02

    Abstract: Process for manufacturing granules of salts of at least two aminopolycarboxylic acids (A), com-prising the steps of (a) providing an aqueous solution of (A1) at least one alkali metal salt of a mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA), said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 95%, (A2) at least one alkali metal salt of L- and D-enantiomers of glutamic acid diacetic acid (GLDA) or of enantiomerically pure L-GLDA, the weight ratio of (A1) and (A2) being in the range of from 1:9 to 9:1, (b) spray granulating said solution with a gas inlet temperature of at least 125° C. Additionally, the present invention relates to granules and to their use.

    MIXTURES OF CHELATING AGENTS, AND PROCESS FOR MAKING SUCH MIXTURES
    12.
    发明申请
    MIXTURES OF CHELATING AGENTS, AND PROCESS FOR MAKING SUCH MIXTURES 审中-公开

    公开(公告)号：US20190127668A1

    公开(公告)日：2019-05-02

    申请号：US16086931

    申请日：2017-03-29

    Applicant: BASF SE

    Inventor： Thomas SCHMIDT ,  Marta REINOSO GARCIA ,  Carsten SUELING ,  Verena MORMUL

    IPC: C11D11/00 ,  C11D3/33 ,  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, percent ages referring to the sum from (A) and (B).

    PROCESS FOR MAKING A GRANULE
    15.
    发明公开
    PROCESS FOR MAKING A GRANULE 审中-公开

    公开(公告)号：US20230143616A1

    公开(公告)日：2023-05-11

    申请号：US17911741

    申请日：2021-03-12

    Applicant: BASF SE

    Inventor： Marta REINOSO GARCIA ,  Sylke HAREMZA ,  Tile GIESHOFF ,  Dan-Tam Daniel TANG ,  Thomas SCHMIDT ,  Michael Klemens MUELLER

    IPC: C11D11/00 ,  C11D3/33 ,  C11D3/28 ,  C11D3/37 ,  C11D3/395

    CPC classification number: C11D11/0082 ,  C11D3/33 ,  C11D3/28 ,  C11D3/3761 ,  C11D11/0023 ,  C11D3/3953

    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 iminodisuccinic acid (IDS),
    (B) at least one compound of general formula (I a) or (I b)












    wherein A1 is selected from (CH2)a wherein the variable a is in the range of from 4 to 20,
    e is selected from zero and 1, and
    R1 being the same or different and selected from O—C1-C10-alkyl and C1-C10-alkyl,

    and, optionally,




    (C) 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 said compound (B) and, if applicable, (co)polymer (C), with a pH value in the range of from 10 to 12,
    (b) removing most of said water by spray drying or spray granulation.

    PROCESS FOR MANUFACTURING A COMPLEXING AGENT
    16.
    发明申请
    PROCESS FOR MANUFACTURING A COMPLEXING AGENT 有权

    公开(公告)号：US20210094902A1

    公开(公告)日：2021-04-01

    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

    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) (formula I a, 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 3.1 moles per mole nitrile according to general formula (I a) or (I b), respectively, and (d) Allowing further conversion. 20

    AQUEOUS SOLUTIONS CONTAINING A COMPLEXING AGENT IN HIGH CONCENTRATION
    20.
    发明申请
    AQUEOUS SOLUTIONS CONTAINING A COMPLEXING AGENT IN HIGH CONCENTRATION 审中-公开
    含有高浓度复合剂的水溶液

    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

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