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    PROCESS FOR MAKING A GRANULE
    1.
    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 PRODUCTION OF ACRYLIC ACID
    4.
    发明申请
    PROCESS FOR PRODUCTION OF ACRYLIC ACID 有权
    丙烯酸生产工艺

    公开(公告)号：US20170036982A1

    公开(公告)日：2017-02-09

    申请号：US15227392

    申请日：2016-08-03

    Applicant: BASF SE

    Inventor： Tobias KORN ,  Till BLUM ,  Travis CARLINE ,  Christopher FUCHS ,  Darryl WELCH ,  Peter ZUROWSKI ,  Volker SCHLIEPHAKE ,  Steffen RISSEL ,  Thorsten FRIESE ,  Ulrich JAEGER ,  Sylke HAREMZA

    IPC: C07C45/32 ,  C07C45/82 ,  C07C45/79

    CPC classification number: C07C45/32 ,  C07C45/33 ,  C07C45/35 ,  C07C45/38 ,  C07C45/39 ,  C07C45/783 ,  C07C51/21 ,  C07C51/235 ,  C07C51/245 ,  C07C51/252 ,  C07C51/42 ,  C07C51/43 ,  C07C51/44 ,  C07C51/47 ,  C07C57/04

    Abstract: The invention is related to a process for production of acrylic acid comprising the following steps: a) preparation of a product gas mixture by a catalytic gas-phase oxidation of at least one C3 precursor compound to acrylic acid, wherein acrylic acid is formed as a main product of the catalytic gas-phase oxidation and glyoxal is formed as a by-product and the product gas mixture comprises acrylic acid and glyoxal, b) cooling of the product gas mixture, c) contacting the product gas mixture in countercourrent with an absorbent, wherein an absorbate A, comprising the absorbent and absorbed acrylic acid, is formed, d) introducing a feed stream F (2) comprising at least part of the absorbate A into a rectification column comprising a rectifying section and a stripping section, e) enriching the absorbent in the stripping section and enriching acrylic acid in the rectifying section, f) withdrawing a stream C of crude acrylic acid comprising at least 90% by weight of acrylic acid out of the rectifying section as a side stream, wherein step c) is carried out in an absorption column (12) comprising at least two cooling loops, a first cooling loop (14), wherein a high boiler fraction of the product gas mixture is condensed and a second cooling loop (16), wherein a low boiler fraction of the product gas mixture is condensed, wherein a portion of the absorbate A, which comprises the feed stream F (2), is removed from the absorption column (12) at a side take-off (20), the side take-off (20) being located at the first cooling loop (14) or at a height of the absorption column (12) between the first cooling loop (14) and the second cooling loop (16) and wherein a temperature Tc of the absorbate A in the second cooling loop is at least 56° C.

    Abstract translation: 本发明涉及一种生产丙烯酸的方法，包括以下步骤：a）通过至少一种C3前体化合物的催化气相氧化制备产物气体混合物至丙烯酸，其中丙烯酸形成为 作为副产物形成催化气相氧化和乙二醛的主要产物，产物气体混合物包括丙烯酸和乙二醛，b）冷却产物气体混合物，c）将产物气体混合物与吸附剂 ，其中形成包含吸收和吸收的丙烯酸的吸收剂A，d）将包含至少一部分吸收剂A的进料流F（2）引入到包括精馏段和汽提段的蒸馏塔中，e）富集 汽提段中的吸收剂和精馏段中的富集丙烯酸，f）将粗丙烯酸流C包含至少90％（重量）的丙烯酸 其中步骤c）在包括至少两个冷却回路的吸收塔（12）中进行，第一冷却回路（14），其中产物气体混合物的高沸点馏分冷凝，和 第二冷却回路（16），其中产物气体混合物的低沸点馏分冷凝，其中包含进料流F（2）的吸收剂A的一部分在吸收塔（12）的一侧被去除 起落架（20），侧向起飞（20）位于第一冷却回路（14）处或位于第一冷却回路（14）和第二冷却回路（14）的吸收塔（12）的高度处 16），其中第二冷却回路中的吸收剂A的温度（Tc）至少为56℃。

    SHELF LIFE- AND TRANSPORT STABILIZERS FOR POLYMERIZABLE COMPOUNDS
    5.
    发明公开
    SHELF LIFE- AND TRANSPORT STABILIZERS FOR POLYMERIZABLE COMPOUNDS 审中-公开

    公开(公告)号：US20230348694A1

    公开(公告)日：2023-11-02

    申请号：US17780573

    申请日：2020-11-23

    Applicant: BASF SE

    Inventor： Sylke HAREMZA ,  Friedrich-Georg MARTIN ,  Doris KREMZOW-GRAW ,  Rebecca SURE ,  Juergen ROMEIS ,  Korwin SCHELKLE ,  Friederike FLEISCHHAKER ,  Jan Niclas GORGES

    IPC: C08K5/3445 ,  C08F220/06 ,  C08F220/14 ,  C08F220/18

    CPC classification number: C08K5/3445 ,  C08F220/06 ,  C08F220/14 ,  C08F220/1802 ,  C08F220/1804 ,  C08F220/1808

    Abstract: A mixture comprising one or more compounds of the general formula (II)






    where
    R6 is H, C1 to C20 alkyl, where C1 to C20 alkyl comprises straight-chain or branched C1 to C20 alkyl groups or cyclic C3 to C20 alkyl groups, alkanoyl having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, cyanophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, dimethylphenyl, such as 3,4-dimethylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-ethoxyphenyl, 3-ethoxyphenyl, 4-ethoxyphenyl, 4-isopropylphenyl, benzyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, (carboxymethyl)phenyl, in which the carboxyl group may also be esterified with C1 to C6 alkyl, where C1 to C6 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C6 alkyl groups, (N,N-dimethylsulfonamido)phenyl, sulfonamidophenyl or 4-isopropoxyphenyl,
    R7 is H, C1 to C20 alkyl, where C1 to C20 alkyl comprises straight-chain or branched C1 to C20 alkyl groups or cyclic C3 to C20 alkyl groups, phenyl, carboxylic esters having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C8 alkyl groups, alkanoyl having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, cyanophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, dimethylphenyl, such as 3,4-dimethylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-ethoxyphenyl, 3-ethoxyphenyl, 4-ethoxyphenyl, 4-isopropylphenyl, benzyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, (carboxymethyl)phenyl, in which the carboxyl group may also be esterified with C1 to C6 alkyl, where C1 to C6 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C6 alkyl groups, (N,N-dimethylsulfonamido)phenyl, sulfonamidophenyl or 4-isopropoxyphenyl, and
    R8 is H, C1 to C20 alkyl, where C1 to C20 alkyl comprises straight-chain or branched C1 to C20 alkyl groups or cyclic C3 to C20 alkyl groups, phenyl, carboxylic esters having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, alkanoyl having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, cyanophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, dimethylphenyl, such as 3,4-dimethylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-ethoxyphenyl, 3-ethoxyphenyl, 4-ethoxyphenyl, 4-isopropylphenyl, benzyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, (carboxymethyl)phenyl, in which the carboxyl group may also be esterified with C1 to C6 alkyl, where C1 to C6 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C6 alkyl groups, (N,N-dimethylsulfonamido)phenyl, sulfonamidophenyl or 4-isopropoxyphenyl,
    and (meth)acrylic acid and/or C1 to C8 alkyl (meth)acrylates.

    METHOD FOR INHIBITING UNWANTED RADICAL POLYMERISATION OF ACRYLIC ACID PRESENT IN A LIQUID PHASE P
    6.
    发明申请
    METHOD FOR INHIBITING UNWANTED RADICAL POLYMERISATION OF ACRYLIC ACID PRESENT IN A LIQUID PHASE P 有权

    公开(公告)号：US20210309598A1

    公开(公告)日：2021-10-07

    申请号：US17263415

    申请日：2019-07-16

    Applicant: BASF SE

    Inventor： Nicole JANSSEN ,  Peter ZUROWSKI ,  Ulrich HAMMON ,  Sylke HAREMZA

    IPC: C07C51/50 ,  C07C51/44

    Abstract: Process for inhibiting the undesired free-radical polymerization of acrylic acid present in a liquid phase P, wherein the acrylic acid content of P is at least 10% by weight, the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal based on the weight of the acrylic acid present in P and the liquid phase P is admixed with furfural in an amount that results in a furfural content in the range from 25 to 1000 ppmw based on the weight of the acrylic acid present in P. Liquid phase P, wherein the acrylic acid content of P is at least 10% by weight and the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal and in the range from 25 to 1000 ppmw of furfural in each case based on the weight of the acrylic acid present in P.

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