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    Method for producing carboxylic acid esters
    3.
    发明授权
    Method for producing carboxylic acid esters 有权
    羧酸酯的制备方法

    公开(公告)号：US08901343B2

    公开(公告)日：2014-12-02

    申请号：US13140256

    申请日：2009-12-15

    申请人： Walter Disteldorf ,  Jarren Peters ,  Thomas Schäfer ,  Katrin Friese ,  Christoph Übler

    发明人： Walter Disteldorf ,  Jarren Peters ,  Thomas Schäfer ,  Katrin Friese ,  Christoph Übler

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  C07C69/80

    摘要： The invention relates to a method for producing carboxylic esters by converting a carboxylic acid or a carboxylic acid anhydride or a mixture thereof with an alcohol in a reaction system comprising one or more reactors, wherein reaction water is distilled as alcohol-water-azeotrope with the vapors, the vapors are at least partially condensed, the condensate is separated into an aqueous phase and an organic phase and said organic phase is supplied at least partially back into said reaction system. Components boiling lower than the alcohol are at least partially removed from said returned organic phase such as wherein components boiling lower than alcohol are evaporated and/or distilled off. An enrichment in the reaction system of by-products boiling lower than alcohol is avoided. Alcohol losses can be minimized by discharge currents.

    摘要翻译： 本发明涉及一种通过在包含一个或多个反应器的反应体系中将羧酸或羧酸酐或其混合物与醇反应来制备羧酸酯的方法，其中将反应水作为醇 - 水 - 共沸物与 蒸气，蒸气至少部分冷凝，将冷凝物分离成水相和有机相，并将所述有机相至少部分地供给至所述反应体系。 沸点低于醇的组分至少部分地从所述返回的有机相中除去，例如其中沸点低于醇的组分蒸发和/或蒸馏掉。 避免了沸点低于酒精的副产物的反应体系的富集。 酒精损失可以通过放电电流最小化。

    METHOD FOR PRODUCING CARBOXYLIC ACID ESTERS
    4.
    发明申请
    METHOD FOR PRODUCING CARBOXYLIC ACID ESTERS 有权
    生产羧酸酯的方法

    公开(公告)号：US20110251420A1

    公开(公告)日：2011-10-13

    申请号：US13140256

    申请日：2009-12-15

    申请人： Walter Disteldorf ,  Jarren Peters ,  Thomas Schäfer ,  Katrin Friese ,  Christoph Übler

    发明人： Walter Disteldorf ,  Jarren Peters ,  Thomas Schäfer ,  Katrin Friese ,  Christoph Übler

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  C07C69/80

    摘要： The invention relates to a method for producing carboxylic esters by converting a carboxylic acid or a carboxylic acid anhydride or a mixture thereof with an alcohol in a reaction system comprising one or more reactors, wherein reaction water is distilled as alcohol-water-azeotrope with the vapors, the vapors are at least partially condensed, the condensate is separated into an aqueous phase and an organic phase and said organic phase is supplied at least partially back into said reaction system. Components boiling lower than the alcohol are at least partially removed from said returned organic phase such as wherein components boiling lower than alcohol are evaporated and/or distilled off. An enrichment in the reaction system of by-products boiling lower than alcohol is avoided. Alcohol losses can be minimized by discharge currents.

    摘要翻译： 本发明涉及一种通过在包含一个或多个反应器的反应体系中将羧酸或羧酸酐或其混合物与醇反应来制备羧酸酯的方法，其中将反应水作为醇 - 水 - 共沸物与 蒸气，蒸气至少部分冷凝，将冷凝物分离成水相和有机相，并将所述有机相至少部分提供回所述反应体系。 沸点低于醇的组分至少部分地从所述返回的有机相中除去，例如其中沸点低于醇的组分蒸发和/或蒸馏掉。 避免了沸点低于酒精的副产物的反应体系的富集。 酒精损失可以通过放电电流最小化。

    Method for regeneration of raw ester
    5.
    发明授权
    Method for regeneration of raw ester 有权
    生酯再生方法

    公开(公告)号：US08729292B2

    公开(公告)日：2014-05-20

    申请号：US13140239

    申请日：2009-12-15

    申请人： Katrin Friese ,  Walter Disteldorf ,  Jarren Peters ,  Günther Golfier

    发明人： Katrin Friese ,  Walter Disteldorf ,  Jarren Peters ,  Günther Golfier

    IPC分类号： C07C67/48

    CPC分类号： C07C67/58 ,  C07C67/60 ,  Y02P20/584 ,  C07C69/80

    摘要： The invention relates to a raw ester of an esterification reaction catalyzed by a metal-containing esterification catalyst generated by a) mixing the raw ester at a temperature T of more than 100° C. under a pressure p that is equal to or greater than the vapor pressure of water at the temperature T with an aqueous base, b) relaxing the ester-base mixture and evaporating water, c) mixing the obtained fluid phase with water forming a water-in-oil emulsion, d) distilling water out of said emulsion and e) filtering the ester. Said method results in esters having low acid value and residues accrue in easily filterable form in the solid catalyst residues.

    摘要翻译： 本发明涉及由含金属的酯化催化剂催化的酯化反应的原料酯，其通过以下步骤生成：a）在大于100℃的温度T下，在等于或大于 蒸馏水，c）将得到的流体相与形成油包水乳液的水混合，d）将水从所述的水溶液中蒸出， 乳液和e）过滤酯。 所述方法导致具有低酸值和残留物的酯在固体催化剂残余物中易于过滤形式产生。

    Method for Isolating Methyl Glycine Nitrile-N,N-Diacetonitriles from an Aqueous Crude Mixture
    6.
    发明申请
    Method for Isolating Methyl Glycine Nitrile-N,N-Diacetonitriles from an Aqueous Crude Mixture 有权
    从水性原料混合物中分离出甲基甘氨酸腈-N，N-二乙腈的方法

    公开(公告)号：US20080194858A1

    公开(公告)日：2008-08-14

    申请号：US11913726

    申请日：2006-05-03

    申请人： Alfred Oftring ,  Bernd Judat ,  Matthias Rauls ,  Katrin Friese

    发明人： Alfred Oftring ,  Bernd Judat ,  Matthias Rauls ,  Katrin Friese

    IPC分类号： C07C255/00

    CPC分类号： C07C253/34 ,  C07C255/24 ,  C07C255/25

    摘要： The invention relates to a process for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous emulsion which comprises MGDN and has an MGDN content of 3-50% by weight in a crystallizer, comprising the steps: (a) the aqueous emulsion is, starting from a temperature above the solidification point, cooled to a temperature below the solidification point, the cooling rate averaged over time not exceeding 5 K/h, until substantially the entirety of the emulsified MGDN has solidified, (b) the resulting aqueous suspension is cooled further and/or concentrated, and the cooling rate may be greater than in step (a).

    摘要翻译： 本发明涉及一种从结晶器中含有MGDN并具有3-50重量％的MGDN含量的水性乳液分离出甲基亚氨基腈-N，N-二乙腈（MGDN）的方法，包括以下步骤：（a） 乳液从高于固化点的温度开始冷却到低于凝固点的温度，随着时间的推移平均冷却速度不超过5K / h，直到基本上全部乳化的MGDN已经固化，（b）所得到的 水性悬浮液进一步冷却和/或浓缩，并且冷却速率可以大于步骤（a）。

    METHOD FOR REGENERATION OF RAW ESTER
    8.
    发明申请
    METHOD FOR REGENERATION OF RAW ESTER 有权
    再生原始方法

    公开(公告)号：US20110251419A1

    公开(公告)日：2011-10-13

    申请号：US13140239

    申请日：2009-12-15

    申请人： Katrin Friese ,  Walter Disteldorf ,  Mannheim Germany ,  Günther Golfer

    发明人： Katrin Friese ,  Walter Disteldorf ,  Mannheim Germany ,  Günther Golfer

    IPC分类号： C07C67/58

    CPC分类号： C07C67/58 ,  C07C67/60 ,  Y02P20/584 ,  C07C69/80

    摘要： The invention relates to a raw ester of an esterification reaction catalyzed by a metal-containing esterification catalyst generated by a) mixing the raw ester at a temperature T of more than 100° C. under a pressure p that is equal to or greater than the vapor pressure of water at the temperature T with an aqueous base, b) relaxing the ester-base mixture and evaporating water, c) mixing the obtained fluid phase with water forming a water-in-oil emulsion, d) distilling water out of said emulsion and e) filtering the ester. Said method results in esters having low acid value and residues accrue in easily filterable form in the solid catalyst residues.

    摘要翻译： 本发明涉及由含金属的酯化催化剂催化的酯化反应的原料酯，其通过以下步骤生成：a）在大于100℃的温度T下，在等于或大于 蒸馏水，c）将得到的流体相与形成油包水乳液的水混合，d）将水从所述的水溶液中蒸出， 乳液和e）过滤酯。 所述方法导致具有低酸值和残留物的酯在固体催化剂残余物中易于过滤形式产生。

    Method for isolating methyl glycine nitrile-N,N-diacetonitriles from an aqueous crude mixture
    9.
    发明授权
    Method for isolating methyl glycine nitrile-N,N-diacetonitriles from an aqueous crude mixture 有权
    从粗水混合物中分离甲基甘氨酸腈-N，N-二乙腈的方法

    公开(公告)号：US07754911B2

    公开(公告)日：2010-07-13

    申请号：US11913726

    申请日：2006-05-03

    申请人： Alfred Oftring ,  Bernd Judat ,  Matthias Rauls ,  Katrin Friese

    发明人： Alfred Oftring ,  Bernd Judat ,  Matthias Rauls ,  Katrin Friese

    IPC分类号： C07C255/00

    CPC分类号： C07C253/34 ,  C07C255/24 ,  C07C255/25

    摘要： The invention relates to a process for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous emulsion which comprises MGDN and has an MGDN content of 3-50% by weight in a crystallizer, comprising the steps: (a) the aqueous emulsion is, starting from a temperature above the solidification point, cooled to a temperature below the solidification point, the cooling rate averaged over time not exceeding 5 K/h, until substantially the entirety of the emulsified MGDN has solidified, (b) the resulting aqueous suspension is cooled further and/or concentrated, and the cooling rate may be greater than in step (a).

    摘要翻译： 本发明涉及一种从结晶器中含有MGDN并具有3-50重量％的MGDN含量的水性乳液分离出甲基亚氨基腈-N，N-二乙腈（MGDN）的方法，包括以下步骤：（a） 乳液从高于固化点的温度开始冷却到低于凝固点的温度，随着时间的推移平均冷却速度不超过5K / h，直到基本上全部乳化的MGDN已经固化，（b）所得到的 水性悬浮液进一步冷却和/或浓缩，并且冷却速率可以大于步骤（a）。