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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。
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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。
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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。
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公开(公告)号：US09617209B2
公开(公告)日：2017-04-11
申请号：US15021541
申请日：2014-09-10
IPC分类号： C07C321/14 , C07C319/20 , C07C319/26 , C07C319/28
CPC分类号： C07C321/14 , C07B2200/13 , C07C319/20 , C07C319/26 , C07C319/28 , C07C323/58
摘要： The invention relates to a method for crystallizing D,L-methionine from aqueous solutions and/or suspensions containing D,L-methionine and D,L-methionine ammonium salts, having a Met content of 70-180 g/kg, an NH4+ content of 1-5 g/kg, in the presence of a crystallization additive, which comprises a nonionic or anionic surfactant or a mixture of various nonionic or anionic surfactants, in which the temperature of the solution and/or suspension is lowered directly or stepwise from T1=85-110° C. to T2=30-50° C., so that D,L-methionine precipitates as a solid.
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公开(公告)号：US5669609A
公开(公告)日：1997-09-23
申请号：US652186
申请日：1996-05-23
申请人： Stefan Reichert
发明人： Stefan Reichert
摘要： A target, especially for thrown missiles such as darts, has a disk member divided into target fields. An evaluating unit to receive and process electronic signals or actuated contacts of the disk member is associated with the disk member. At least one target element is formed on the target fields. The target element, when subjected to loads by a missile, actuates a contact which is connected to the evaluating unit. Each target element is given a predetermined value by the evaluating unit. Further, at least two target elements may be combined to form one value unit.
摘要翻译： 目标，特别是投掷飞弹，如飞镖，有一个磁盘成员分为目标字段。 用于接收和处理盘构件的电子信号或致动触点的评估单元与盘构件相关联。 目标场上至少形成一个目标元素。 目标元件在受到导弹负载时，致动与评估单元连接的触点。 每个目标元素由评估单元给予预定值。 此外，可以组合至少两个目标元素以形成一个值单位。
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