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    PROCESS FOR THE PREPARATION OF METHIONINE
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF METHIONINE 有权
    制备甲硫氨酸的方法

    公开(公告)号：US20150051421A1

    公开(公告)日：2015-02-19

    申请号：US14386165

    申请日：2013-02-26

    申请人： Martin Koerfer ,  Hans Joachim Hasselbach ,  Stefan Reichert ,  Harald Jakob ,  Christoph Weckbecker ,  Klaus Huthmacher ,  Horst Krull ,  Bernd Drapal ,  Rainer Peter

    发明人： Martin Koerfer ,  Hans Joachim Hasselbach ,  Stefan Reichert ,  Harald Jakob ,  Christoph Weckbecker ,  Klaus Huthmacher ,  Horst Krull ,  Bernd Drapal ,  Rainer Peter

    IPC分类号： C07C319/12 ,  C07C323/52

    CPC分类号： C07C319/28 ,  C07C319/12 ,  C07C319/20 ,  C07C319/26 ,  C07C323/52 ,  Y02P20/142 ,  C07C323/58

    摘要： The invention relates to a process for the preparation of D,L-methionine, in which carbon dioxide is fed to an aqueous potassium methioninate solution obtained by hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in order to precipitate out crude methionine, which is separated off and purified, where, for the purposes of purification, an aqueous solution of the separated-off crude methionine is prepared and subjected to a recrystallization, characterized in that the solution from which the recrystallization takes place contains potassium ions and also a crystallization additive, where the crystallization additive is a nonionic or anionic surfactant, or a mixture of different nonionic or anionic surfactants, and that the recrystallization takes place by introducing a 60 to 110° C.-hot methionine solution into a 35 to 80° C.-warm methionine suspension, the temperature of which is lower than that of the introduced solution, the temperature of the methionine suspension being maintained between 35 and 80° C. during the addition.

    摘要翻译： 本发明涉及一种制备D，L-甲硫氨酸的方法，其中将二氧化碳加入到通过5-（2-甲基巯基乙基）乙内酰脲的水解获得的甲硫氨酸钾水溶液中，以沉淀出粗蛋氨酸， 分离纯化，其中，为了纯化的目的，制备分离的粗制甲硫氨酸的水溶液并进行重结晶，其特征在于进行重结晶的溶液含有钾离子并且还具有结晶 添加剂，其中结晶添加剂是非离子或阴离子表面活性剂，或不同的非离子或阴离子表面活性剂的混合物，并且通过将60至110℃的热甲硫氨酸溶液引入35至80℃进行重结晶。 - 温血蛋氨酸悬浮液，其温度低于引入溶液的温度，甲硫氨酸悬浮液的温度维持在 在加入过程中在35和80℃之间。

    Process for the preparation of methionine
    3.
    发明授权
    Process for the preparation of methionine 有权
    制备甲硫氨酸的方法

    公开(公告)号：US09156782B2

    公开(公告)日：2015-10-13

    申请号：US14386165

    申请日：2013-02-26

    申请人： Martin Koerfer ,  Hans Joachim Hasselbach ,  Stefan Reichert ,  Harald Jakob ,  Christoph Weckbecker ,  Klaus Huthmacher ,  Horst Krull ,  Bernd Drapal ,  Rainer Peter

    发明人： Martin Koerfer ,  Hans Joachim Hasselbach ,  Stefan Reichert ,  Harald Jakob ,  Christoph Weckbecker ,  Klaus Huthmacher ,  Horst Krull ,  Bernd Drapal ,  Rainer Peter

    IPC分类号： C07C319/12 ,  C07C319/20 ,  C07C319/26 ,  C07C319/28 ,  C07C323/52

    CPC分类号： C07C319/28 ,  C07C319/12 ,  C07C319/20 ,  C07C319/26 ,  C07C323/52 ,  Y02P20/142 ,  C07C323/58

    摘要： The invention relates to a process for the preparation of D,L-methionine, in which carbon dioxide is fed to an aqueous potassium methioninate solution obtained by hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in order to precipitate out crude methionine, which is separated off and purified, where, for the purposes of purification, an aqueous solution of the separated-off crude methionine is prepared and subjected to a recrystallization, characterized in that the solution from which the recrystallization takes place contains potassium ions and also a crystallization additive, where the crystallization additive is a nonionic or anionic surfactant, or a mixture of different nonionic or anionic surfactants, and that the recrystallization takes place by introducing a 60 to 110° C.-hot methionine solution into a 35 to 80° C.-warm methionine suspension, the temperature of which is lower than that of the introduced solution, the temperature of the methionine suspension being maintained between 35 and 80° C. during the addition.

    摘要翻译： 本发明涉及一种制备D，L-甲硫氨酸的方法，其中将二氧化碳加入到通过5-（2-甲基巯基乙基）乙内酰脲的水解获得的甲硫氨酸钾水溶液中，以沉淀出粗蛋氨酸， 分离纯化，其中，为了纯化的目的，制备分离的粗制甲硫氨酸的水溶液并进行重结晶，其特征在于进行重结晶的溶液含有钾离子并且还具有结晶 添加剂，其中结晶添加剂是非离子或阴离子表面活性剂，或不同的非离子或阴离子表面活性剂的混合物，并且通过将60至110℃的热甲硫氨酸溶液引入35至80℃进行重结晶。 - 温血蛋氨酸悬浮液，其温度低于引入溶液的温度，甲硫氨酸悬浮液的温度维持在 在加入过程中在35和80℃之间。

    Process for the preparation of methionine
    5.
    发明授权
    Process for the preparation of methionine 有权
    制备甲硫氨酸的方法

    公开(公告)号：US09464045B2

    公开(公告)日：2016-10-11

    申请号：US14850207

    申请日：2015-09-10

    申请人： Martin Koerfer ,  Hans Joachim Hasselbach ,  Stefan Reichert ,  Harald Jakob ,  Christoph Weckbecker ,  Klaus Huthmacher ,  Horst Krull ,  Bernd Drapal ,  Rainer Peter

    发明人： Martin Koerfer ,  Hans Joachim Hasselbach ,  Stefan Reichert ,  Harald Jakob ,  Christoph Weckbecker ,  Klaus Huthmacher ,  Horst Krull ,  Bernd Drapal ,  Rainer Peter

    IPC分类号： C07C319/28 ,  C07C319/20 ,  C07C319/26 ,  C07C319/12 ,  C07C323/52

    CPC分类号： C07C319/28 ,  C07C319/12 ,  C07C319/20 ,  C07C319/26 ,  C07C323/52 ,  Y02P20/142 ,  C07C323/58

    摘要： This disclosure relates to a process for preparing D,L-methionine by feeding carbon dioxide to an aqueous potassium methioninate solution obtained by hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in order to precipitate out crude methionine, which is separated off and purified. In this process an aqueous solution of the separated-off crude methionine is purified by recrystallization from a solution containing potassium ions and also a crystallization additive. The crystallization additive is a nonionic or anionic surfactant, or a mixture of different nonionic or anionic surfactants. The recrystallization occurs by introducing a 60 to 110° C.-hot methionine solution into a 35 to 80° C.-warm methionine suspension, a temperature of which is lower than that of the introduced solution, such that the temperature of the methionine suspension being maintained between 35 and 80° C. during the addition. The crystallization additive is a sorbitan fatty acid ester or a mixture of different sorbitan fatty acid esters.

    摘要翻译： 本公开涉及通过将二氧化碳供给到通过水解5-（2-甲基巯基乙基）乙内酰脲获得的甲硫氨酸钾水溶液以便沉淀出粗蛋氨酸的方法来制备D，L-甲硫氨酸，其分离和纯化 。 在该方法中，分离的粗甲硫氨酸的水溶液通过从含有钾离子的溶液和结晶添加剂中重结晶来纯化。 结晶添加剂是非离子或阴离子表面活性剂，或不同的非离子或阴离子表面活性剂的混合物。 通过将60〜110℃的甲硫氨酸溶液导入35〜80℃的甲硫氨酸悬浮液中，其温度低于引入的溶液的温度，使得甲硫氨酸悬浮液的温度 在添加期间保持在35和80℃之间。 结晶添加剂是脱水山梨糖醇脂肪酸酯或不同脱水山梨糖醇脂肪酸酯的混合物。

    Aliphatic alkanals with improved storage stability and method of improving the storage stability
    6.
    发明授权
    Aliphatic alkanals with improved storage stability and method of improving the storage stability 有权
    具有改善储存稳定性的脂肪族链烷烃和提高储存稳定性的方法

    公开(公告)号：US6150563A

    公开(公告)日：2000-11-21

    申请号：US134562

    申请日：1998-08-14

    申请人： Hans Joachim Hasselbach ,  Klaus Huthmacher ,  Katja Kelm ,  Horst Weigel

    发明人： Hans Joachim Hasselbach ,  Klaus Huthmacher ,  Katja Kelm ,  Horst Weigel

    IPC分类号： C07C45/86 ,  C07C47/02 ,  C07C319/26 ,  C07C323/22 ,  C07C47/00

    CPC分类号： C07C323/22 ,  C07C45/86

    摘要： Aliphatic alkanals with a water content of greater than 300 ppm which are stable in storage, and a method of improving the storage stability of these aliphatic alkanals, especially of substituted, sulfur-containing alkanals. The formation of oligomers, polymers and condensation products from elimination reactions and oxidation and the subsequent reactions of the products formed results in undesired impurities that are largely prevented by the addition of an organic acid that forms metal complexes and, optionally, alkanolamines or trialkanolamines.

    摘要翻译： 水分大于300ppm的脂肪族链烷烃，其储存稳定，以及提高这些脂肪族链烷烃，特别是取代的含硫链烷烃的储存稳定性的方法。 由消除反应和氧化形成的低聚物，聚合物和缩合产物以及所形成的产物的后续反应导致不期望的杂质，其通过加入形成金属络合物的有机酸和任选的烷醇胺或三链烷醇胺而大大地被防止。