利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

156 条记录 (耗时 0.029 秒)

    Process for the preparation of D,L-methionine or the salt thereof
    2.
    发明授权
    Process for the preparation of D,L-methionine or the salt thereof 失效
    制备D，L-甲硫氨酸或其盐的方法

    公开(公告)号：US5990349A

    公开(公告)日：1999-11-23

    申请号：US37020

    申请日：1998-03-09

    申请人： Friedhelm Geiger ,  Baudouin Halsberghe ,  Hans-Joachim Hasselbach ,  Klaus Hentschel ,  Klaus Huthmacher ,  Martin Korfer ,  Sven-Peter Mannsfeld ,  Herbert Tanner ,  Ferdinand Theissen ,  Jose Vanrobaeys ,  Klaus Willigerodt

    发明人： Friedhelm Geiger ,  Baudouin Halsberghe ,  Hans-Joachim Hasselbach ,  Klaus Hentschel ,  Klaus Huthmacher ,  Martin Korfer ,  Sven-Peter Mannsfeld ,  Herbert Tanner ,  Ferdinand Theissen ,  Jose Vanrobaeys ,  Klaus Willigerodt

    IPC分类号： C07C319/20 ,  C07C319/28 ,  C07C323/58 ,  C07D233/76 ,  C07C321/00 ,  C07C315/00

    CPC分类号： C07C319/20 ,  C07C319/28 ,  C07D233/76

    摘要： A process for the preparation of methionine or a salt of methionine by reaction of the components 3-methylmercaptopropionaldhyde, hydrogen cyanide, ammonia and carbon dioxide or components from which the above-mentioned components can be prepared, optionally in the presence of water, to 5-(2-methylmercaptoethyl)-hydantoin and further reaction thereof to methionine or the salt thereof, characterised in that the reaction of the components is initiated by means of at least one premixture in such a way that a first mixture is formed containing at least the predominant proportion (at least 5/10) of the 3-methylmercaptopropionaldeyde and at least 1/10 of the hydrogen cyanide component or corresponding quantities of components from which these components can be prepared, and less than 5/10 of one of the components ammonia, carbon dioxide or of the components from which ammonia or carbon dioxide can be prepared, and in that this first mixture is combined with the other component(s) for the reactive conversion to 5-(2-methylmercaptoethyl)-hydantoin, wherein this (these) latter component(s) may be premixed in one or more other mixtures.

    摘要翻译： 通过将3-甲基巯基丙酸，氰化氢，氨和二氧化碳或可由其制备上述组分的组分，任选地在水存在下，将组分3-甲基巯基丙酸，氰化氢，氨和二氧化碳或组分反应制备甲硫氨酸或甲硫氨酸的方法， - （2-甲基巯基乙基） - 乙内酰脲及其与甲硫氨酸或其盐的反应，其特征在于，组分的反应通过至少一种预混物引发，使得形成第一混合物至少含有 3-甲基巯基丙酸的主要比例（至少+ E，fra 5/10 + EE）和氰化氢组分的至少+ E，fra 1/10 + EE或可以制备这些组分的相应量的组分， 并且可以制备氨，二氧化碳或其中可以制备氨或二氧化碳的组分之一的小于+ E，fra 5/10 + EE，并且因为该第一混合物与 反应转化成5-（2-甲基巯基乙基） - 乙内酰脲的其它组分，其中这些（这些）后一种组分可以在一种或多种其它混合物中预混合。

    PROCESS FOR THE PREPARATION OF METHIONINE
    4.
    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。

    Aliphatic alkanals with improved storage stability and method of improving the storage stability
    5.
    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。

    Process for the preparation of methionine
    7.
    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。

    Process for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA)
    9.
    发明授权
    Process for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) 有权
    获得2-羟基-4-甲硫基丁酸（MHA）的方法

    公开(公告)号：US6140536A

    公开(公告)日：2000-10-31

    申请号：US91796

    申请日：1998-09-01

    申请人： Hans Albrecht Hasseberg ,  Hans Joachim Hasselbach ,  Klaus Huthmacher ,  Volker Hafner ,  Harald Heinzel ,  Barbara Jager

    发明人： Hans Albrecht Hasseberg ,  Hans Joachim Hasselbach ,  Klaus Huthmacher ,  Volker Hafner ,  Harald Heinzel ,  Barbara Jager

    IPC分类号： C07C319/20 ,  C07C319/28 ,  C07C323/52 ,  C07C315/00

    CPC分类号： C07C319/28 ,  C07C319/20

    摘要： A method for the isolation of 2-hydroxy-4-methylthiobutyric acid (MHA), wherein MHA is isolated from a reaction mixture obtained by addition of hydrogen cyanide (HCN) to methylmercaptopropionaldehyde (MMP) and hydrolysis by sulphuric acid of the methylmercaptopropionaldehyde cyanohydrin (MMP-CH) thus obtained. The reaction mixture is brought into contact in a liquid/liquid extraction system with an organic solvent substantially immiscible with water, in order to form an extraction solution which contains the solvent and the MHA transferred out of the reaction mixture. By bringing the salt content of the reaction mixture, prior to the liquid/liquid extraction, to a concentration of about >50 wt. % (wt./wt.), preferably >55 wt. %, referred to the sum of the inorganic constituents of the reaction mixture, the coordinated use of energy in the total system is improved, the evaporation of strongly corrosive solutions is avoided, the efficiency of the hydrolysis step is increased and the distribution coefficients during the extraction are improved. The MHA is isolated as the extract from this extraction solution by evaporation, and may be used as animal feed supplement.

    摘要翻译： PCT No.PCT / EP96 / 05437 Sec。 371日期：1998年9月1日 102（e）1998年9月1日PCT PCT 1996年12月5日PCT公布。 公开号WO97 / 23452 日期1997年7月3日分离2-羟基-4-甲硫基丁酸（MHA）的方法，其中MHA是通过将氰化氢（HCN）加入到甲基巯基丙醛（MMP）中并通过硫酸水解而获得的反应混合物中分离的 的甲基巯基丙醛氰醇（MMP-CH）。 使反应混合物在液/液萃取系统中与基本上与水不混溶的有机溶剂接触，以形成含有溶剂和从反应混合物中转移的MHA的萃取溶液。 通过使液体/液体萃取之前的反应混合物的盐含量达到约> 50wt。 ％（重量/重量），优选> 55重量％ ％，是指反应混合物的无机成分之和，改善了总体系中能量的协调使用，避免了强腐蚀性溶液的蒸发，提高了水解步骤的效率，提高了分散系数 提取提高。 通过蒸发将MHA作为来自该提取溶液的提取物分离，并且可以用作动物饲料添加剂。