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    METHOD FOR AMIDATING OF NITRILE IN THE PRESENCE OF SULFURIC ACID
    15.
    发明申请
    METHOD FOR AMIDATING OF NITRILE IN THE PRESENCE OF SULFURIC ACID 审中-公开
    硫酸存在下氮化物的吸附方法

    公开(公告)号：US20100249449A1

    公开(公告)日：2010-09-30

    申请号：US12738094

    申请日：2008-08-15

    Applicant: Lorenza Sartorelli ,  Andreas Perl ,  Udo Gropp ,  Arndt Selbach

    Inventor： Lorenza Sartorelli ,  Andreas Perl ,  Udo Gropp ,  Arndt Selbach

    IPC: C07C231/06 ,  C07C67/22

    CPC classification number: C07C231/06 ,  C07C67/20 ,  C07C69/54 ,  C07C233/09

    Abstract: The present invention relates to a process for preparing carboxamides by amidating nitriles in the presence of sulphuric acid, wherein the reaction is performed in a Taylor reactor. The process enables a simple and inexpensive preparation of these compounds. The present invention further provides processes for preparing (meth)acrylamides and alkyl(meth)acrylates, which comprise an inventive amidation reaction.

    Abstract translation: 本发明涉及通过在硫酸存在下酰胺化酰胺制备羧酰胺的方法，其中反应在泰勒反应器中进行。 该方法能够简单且廉价地制备这些化合物。 本发明还提供制备（甲基）丙烯酰胺和（甲基）丙烯酸烷基酯的方法，其包含本发明的酰胺化反应。

    METHOD FOR PRODUCING METHACRYLIC ALKYL ESTERS BY WAY OF AZEOTROPIC DISTILLATION
    17.
    发明申请
    METHOD FOR PRODUCING METHACRYLIC ALKYL ESTERS BY WAY OF AZEOTROPIC DISTILLATION 有权
    通过AZEOTROPIC蒸馏法生产甲基丙烯酸酯的方法

    公开(公告)号：US20100029881A1

    公开(公告)日：2010-02-04

    申请号：US12516629

    申请日：2007-08-31

    Applicant: Udo Gropp ,  Robert Weber ,  Thomas Schaefer ,  Andreas Perl ,  Rudolf Sing ,  Thomas Mertz

    Inventor： Udo Gropp ,  Robert Weber ,  Thomas Schaefer ,  Andreas Perl ,  Rudolf Sing ,  Thomas Mertz

    IPC: C08F118/02 ,  C07C67/22 ,  B01J19/00

    CPC classification number: C07C231/06 ,  B01D3/36 ,  C07C67/20 ,  C07C67/54 ,  C07C69/54 ,  C07C233/09

    Abstract: The present invention relates in general terms to a process for preparing alkyl methacrylates, comprising as steps: providing an acetone cyanohydrin by a process according to one of the preceding claims; contacting the acetone cyanohydrin with an inorganic acid to obtain a methacrylamide; contacting the methacrylamide with an alcohol in the presence of an inorganic acid in a reactor to obtain an alkyl methacrylate; continuously discharging at least a portion of the alkyl methacrylate from the reactor into a distillation column as a vapour stream; the discharge being effected by feeding a discharge stream comprising steam into the reactor, to an apparatus for preparing alkyl methacrylates, to a process for preparing polymers based at least partly on alkyl methacrylates, to the use of the alkyl methacrylates obtainable by the process according to the invention in chemical products, and to chemical products based on alkyl methacrylates obtainable by the process according to the invention.

    Abstract translation: 本发明一般涉及制备甲基丙烯酸烷基酯的方法，其包括如下步骤：通过根据前述权利要求之一的方法提供丙酮氰醇; 使丙酮氰醇与无机酸接触，得到甲基丙烯酰胺; 使甲基丙烯酰胺与醇在无机酸存在下在反应器中接触，得到甲基丙烯酸烷基酯; 将至少一部分甲基丙烯酸烷基酯从反应器连续排出到作为蒸气流的蒸馏塔中; 排放是通过将包含蒸汽的排出物流进入反应器，到制备甲基丙烯酸烷基酯的装置，至少部分地基于甲基丙烯酸烷基酯制备聚合物的方法，使用可通过根据 化学产品中的发明，以及基于通过本发明的方法获得的基于甲基丙烯酸烷基酯的化学产品。

    METHOD FOR THE ADSORPTIVE PURIFICATION OF ALKYL METHACRYLATES
    18.
    发明申请
    METHOD FOR THE ADSORPTIVE PURIFICATION OF ALKYL METHACRYLATES 有权
    甲基丙烯酸甲酯的吸附纯化方法

    公开(公告)号：US20100004417A1

    公开(公告)日：2010-01-07

    申请号：US12517199

    申请日：2007-08-31

    Applicant: Udo Gropp ,  Robert Weber ,  Thomas Schaefer ,  Andreas Perl ,  Rudolf Sing ,  Thomas Mertz

    Inventor： Udo Gropp ,  Robert Weber ,  Thomas Schaefer ,  Andreas Perl ,  Rudolf Sing ,  Thomas Mertz

    IPC: C07C67/48 ,  C08F120/18 ,  B01J19/00

    CPC classification number: C07C67/20 ,  C07C67/56 ,  C07C69/54

    Abstract: The invention relates in general terms to a process for preparing to a process for purifying an alkyl methacrylate, comprising the steps of: A. providing an alkyl methacrylate with an impurity: B. adsorbing at least some of the impurity onto a purifying solid to obtain an ultrapure alkyl methacrylate, to a process for preparing an ultrapure alkyl methacrylate, to an apparatus for preparing alkyl methacrylates, to a process for preparing a polymer based at least partly on alkyl methacrylates, to the use of an alkyl methacrylate obtained according to the invention in chemical products, and to chemical products comprising an alkyl methacrylate obtained according to the invention.

    Abstract translation: 本发明一般涉及一种制备甲基丙烯酸烷基酯纯化方法的方法，包括以下步骤：A.提​​供具有杂质的甲基丙烯酸烷基酯：将至少一些杂质吸附到纯化固体上以获得 超临界甲基丙烯酸烷基酯，用于制备超纯甲基丙烯酸烷基酯的方法，用于制备甲基丙烯酸烷基酯的装置，至少部分地基于甲基丙烯酸烷基酯制备聚合物的方法，使用根据本发明获得的甲基丙烯酸烷基酯 化学产品，以及包含根据本发明获得的甲基丙烯酸烷基酯的化学产品。

    Method for the adsorptive purification of alkyl methacrylates
    19.
    发明授权
    Method for the adsorptive purification of alkyl methacrylates 有权
    甲基丙烯酸烷基酯吸附纯化方法

    公开(公告)号：US08324424B2

    公开(公告)日：2012-12-04

    申请号：US12517199

    申请日：2007-08-31

    Applicant: Udo Gropp ,  Robert Weber ,  Thomas Schaefer ,  Andreas Perl ,  Rudolf Sing ,  Thomas Mertz

    Inventor： Udo Gropp ,  Robert Weber ,  Thomas Schaefer ,  Andreas Perl ,  Rudolf Sing ,  Thomas Mertz

    IPC: C07C67/56 ,  C07C69/54 ,  C07C67/20

    CPC classification number: C07C67/20 ,  C07C67/56 ,  C07C69/54

    Abstract: The invention relates in general terms to a process for preparing to a process for purifying an alkyl methacrylate, comprising the steps of: A. providing an alkyl methacrylate with an impurity: B. adsorbing at least some of the impurity onto a purifying solid to obtain an ultrapure alkyl methacrylate, to a process for preparing an ultrapure alkyl methacrylate, to an apparatus for preparing alkyl methacrylates, to a process for preparing a polymer based at least partly on alkyl methacrylates, to the use of an alkyl methacrylate obtained according to the invention in chemical products, and to chemical products comprising an alkyl methacrylate obtained according to the invention.

    Abstract translation: 本发明一般涉及一种制备甲基丙烯酸烷基酯纯化方法的方法，包括以下步骤：A.提​​供具有杂质的甲基丙烯酸烷基酯：将至少一些杂质吸附到纯化固体上以获得 超临界甲基丙烯酸烷基酯，用于制备超纯甲基丙烯酸烷基酯的方法，用于制备甲基丙烯酸烷基酯的装置，至少部分地基于甲基丙烯酸烷基酯制备聚合物的方法，使用根据本发明获得的甲基丙烯酸烷基酯 化学产品，以及包含根据本发明获得的甲基丙烯酸烷基酯的化学产品。

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