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公开(公告)号：JP2013173717A
公开(公告)日：2013-09-05
申请号：JP2012040553
申请日：2012-02-27
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： NISHIDA JUNICHI , KOIZUMI YOSHIYUKI
IPC分类号： C07C319/28 , C07C323/58
CPC分类号： C07C319/28 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a method of producing a purified methionine, wherein a loss caused by cleaning is reduced.SOLUTION: A method of producing a purified methionine from a crude methionine includes a step of cleaning the crude methionine by using cleaning water that contains methionine.
摘要翻译： 本发明要解决的问题：提供一种精制甲硫氨酸的制造方法，其中由清洗引起的损失降低。解决方案：从粗甲硫氨酸制备纯化的甲硫氨酸的方法包括使用清洗水清洗粗甲硫氨酸的步骤， 含有甲硫氨酸。
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公开(公告)号：JP2014108956A
公开(公告)日：2014-06-12
申请号：JP2012265054
申请日：2012-12-04
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
IPC分类号： C07C319/20 , C07B61/00 , C07C323/58
CPC分类号： C07C319/12 , C07C319/20 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing methionine in a short time by proceeding with hydrolysis from a 5-(2-methyl mercaptoethyl)hydantoin solution containing an ammonia component quickly.SOLUTION: In a method of manufacturing methionine by hydrolysis of 5-(2-methyl mercaptoethyl)hydantoin in a 5-(2-methyl mercaptoethyl)hydantoin solution containing an ammonia component, the hydrolysis is conducted after removing the ammonia component from the solution.
摘要翻译： 要解决的问题：提供一种通过从含有氨成分的5-（2-甲基巯基乙基）乙内酰脲溶液进行水解而在短时间内制备甲硫氨酸的方法。解决方案：在通过水解5位制备甲硫氨酸的方法中 - （2-甲基巯基乙基）乙内酰脲在含有氨成分的5-（2-甲基巯基乙基）乙内酰脲溶液中，在从溶液中除去氨成分后进行水解。
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公开(公告)号：JP2010111640A
公开(公告)日：2010-05-20
申请号：JP2008287059
申请日：2008-11-07
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： KOIZUMI YOSHIYUKI , GOTO AKINORI , AZEMI TAKUSHI
IPC分类号： C07C319/20 , C07B61/00 , C07C319/28 , C07C323/58
CPC分类号： C07C319/20 , C07C319/28 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a production method advantageous in cost, for efficiently carrying out the recovery of valuable components.
SOLUTION: The method for producing methionine includes the following steps (1), (2), (3) and (4): (1) a reaction step: a step of hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2, 4-dione in the presence of a basic potassium compound; (2) a first crystallization step: a step of crystallizing the methionine by introducing carbon dioxide to the reaction liquid obtained in the step (1), and separating the obtained slurry into a precipitate and a mother liquor; (3) a second crystallization step: a step of concentrating the mother liquor obtained in the step (2), mixing the concentrated liquor with a lower alcohol, introducing the carbon dioxide to the resultant mixed liquid to precipitate the methionine and potassium hydrogen carbonate, and separating the obtained slurry into a precipitate and a mother liquor, and (4) a heating step: a step of concentrating the mother liquor obtained in the step (3), subjecting the concentrated liquor to heat treatment within the range of 150-200°C, and recycling the heat-treated product to the step (2).
COPYRIGHT: (C)2010,JPO&INPIT摘要翻译： 要解决的问题：为了提供有利于有效地进行有价值的组分的回收的成本优势的生产方法。 解决方案：产生甲硫氨酸的方法包括以下步骤（1），（2），（3）和（4）：（1）反应步骤：将5- [2-（甲硫基）乙基 ]咪唑烷-2,4-二酮在碱性钾化合物的存在下反应; （2）第一结晶步骤：通过向步骤（1）中获得的反应液中引入二氧化碳使甲硫氨酸结晶，并将得到的浆料分离成析出物和母液的步骤; （3）第二结晶步骤：浓缩步骤（2）中得到的母液，将浓缩液与低级醇混合，将二氧化碳引入所得混合液中以沉淀甲硫氨酸和碳酸氢钾， 将得到的浆料分离成析出物和母液，（4）加热工序：浓缩工序（3）中得到的母液的步骤，使浓缩液在150-200℃范围内进行热处理 ℃，并将热处理产物再循环到步骤（2）。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2006206534A
公开(公告)日：2006-08-10
申请号：JP2005022779
申请日：2005-01-31
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
IPC分类号： C07C319/28 , B01D3/00 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a method for efficiently liberating and removing ammonia from a solution containing an ammonium salt to a low concentration.
SOLUTION: The method is carried out as follows. The solution containing the ammonium salt is fed to the upper part of a stripping tower so as to provide a residence time of the solution in the stripping section of the stripping tower within the range of about 10-120 s in the method for liberating and removing the ammonia from the solution containing the ammonium salt, e.g. a hydrolyzed solution prepared by hydrolyzing 5-(β-methylmercaptoethyl)hydantoin in the presence of potassium carbonate and containing the ammonium salt. Steam is fed to the vapor-phase section in the lower part of the stripping tower to carry out steam stripping of the ammonia. The method is performed by feeding the hydrolyzed solution containing the ammonium salt to the upper part of the stripping tower and steam is fed into the bottom of the stripping tower to carry out the steam stripping of the ammonia.
COPYRIGHT: (C)2006,JPO&NCIPI摘要翻译： 待解决的问题：提供一种从含有铵盐的溶液中有效地释放和除去氨至低浓度的方法。 解决方案：该方法如下进行。 将含有铵盐的溶液进料到汽提塔的上部，以便在解吸和除去方法中提供在汽提塔的汽提部分中的溶液在约10-120秒范围内的停留时间 来自含有铵盐的溶液中的氨，例如 通过在碳酸钾存在下含有铵盐水解5-（β-甲基巯基乙基）乙内酰脲而制备的水解溶液。 蒸汽进料到汽提塔下部的气相部分进行氨的汽提。 该方法通过将含有铵盐的水解溶液进料到汽提塔的上部并将蒸汽进料到汽提塔的底部进行氨的汽提。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2012201672A
公开(公告)日：2012-10-22
申请号：JP2011070777
申请日：2011-03-28
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： IMADA NAOKO , KOIZUMI YOSHIYUKI
IPC分类号： C07C319/20 , C07C319/28 , C07C321/14
CPC分类号： C07C319/20 , C07C319/28 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a process for producing methionine capable of improving the recovery rate of methionine as a second crystal.SOLUTION: The process for producing methionine comprises: a hydrolysis step (1) of hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound; a first crystallization step (2) of introducing carbon dioxide into a reaction liquid obtained in step (1), thereby precipitating methionine, and separating the resulting slurry into a precipitate and a mother liquid; a heating step (3) of heat-treating the mother liquid obtained in step (2); and a second crystallization step (4) of introducing carbon dioxide into the mother liquid heat-treated in step (3), thereby precipitating methionine and potassium bicarbonate, and separating the resulting slurry into a precipitate and a mother liquid, wherein the alanine content in the mother liquid to be subjected to step (4) is 0.75 wt.% or less.
摘要翻译： 待解决的问题：提供能够提高作为第二晶体的甲硫氨酸的回收率的甲硫氨酸的方法。 解决方案：产生甲硫氨酸的方法包括：在碱性钾化合物存在下水解5- [2-（甲硫基）乙基]咪唑烷-2,4-二酮的水解步骤（1） 将二氧化碳引入到步骤（1）中获得的反应液中的第一结晶步骤（2），从而沉淀甲硫氨酸，并将所得浆料分离成沉淀物和母液; 对步骤（2）中得到的母液进行热处理的加热步骤（3）; 以及将二氧化碳引入在步骤（3）中热处理的母液中的第二结晶步骤（4），从而沉淀甲硫氨酸和碳酸氢钾，并将所得浆料分离成沉淀物和母液，其中丙氨酸含量 要进行步骤（4）的母液为0.75重量％以下。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2010111641A
公开(公告)日：2010-05-20
申请号：JP2008287060
申请日：2008-11-07
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： KOIZUMI YOSHIYUKI , GOTO AKINORI , AZEMI TAKUSHI
IPC分类号： C07C319/28 , C07B61/00 , C07C319/20 , C07C323/58
CPC分类号： C07C319/28 , C07C319/20 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a production method advantageous in cost, for efficiently carrying out the recovery of valuable components of methionine. SOLUTION: The method for producing the methionine includes the following steps (1), (2), (3) and (4): (1) a reaction step: a step of hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2, 4-dione in the presence of a basic potassium compound; (2) a first crystallization step: a step of crystallizing the methionine by introducing carbon dioxide to the reaction liquid obtained in the step (1), and separating the obtained slurry into a precipitate and a mother liquor; (3) a second crystallization step: a step of concentrating the mother liquor obtained in the step (2), mixing the concentrated liquor with a lower alcohol, introducing the carbon dioxide to the resultant mixed liquid to crystallize the methionine and potassium hydrogen carbonate, and separating the obtained slurry into a precipitate and a mother liquor, and (4) a heating step: a step for concentrating the mother liquor obtained in the step (3), subjecting the concentrated liquor to heat treatment within the range of 150-200°C, and recycling the heat-treated product to the step (3). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译： 要解决的问题：提供有利于成本的生产方法，用于有效地进行甲硫氨酸的有价值成分的回收。 解决方案：产生甲硫氨酸的方法包括以下步骤（1），（2），（3）和（4）：（1）反应步骤：将5- [2-（甲硫基） 乙基]咪唑烷-2,4-二酮在碱性钾化合物存在下反应; （2）第一结晶步骤：通过向步骤（1）中获得的反应液中引入二氧化碳使甲硫氨酸结晶，并将得到的浆料分离成析出物和母液的步骤; （3）第二结晶步骤：浓缩步骤（2）中得到的母液的步骤，将浓缩液与低级醇混合，将二氧化碳引入所得混合液中，使甲硫氨酸和碳酸氢钾结晶， 并将得到的浆料分离成析出物和母液，（4）加热工序：将工序（3）中得到的母液浓缩，使浓缩液在150〜200℃的范围内进行热处理的工序 ℃，并将热处理产物再循环到步骤（3）。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2011195573A
公开(公告)日：2011-10-06
申请号：JP2011037564
申请日：2011-02-23
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
IPC分类号： C07C319/20 , C07C323/58
CPC分类号： C07C319/20 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a method of producing methionine by hydrolyzing M-hydantoin in the presence of a basic potassium compound, which can effectively prevent corrosion of reaction vessels in both the liquid phase and gaseous phase of a hydrolysis solution even at a higher temperature, and enables a longer period of stable production of methionine.SOLUTION: The method of producing methionine comprises hydrolyzing 5-(β-methylmercaptoethyl)hydantoin in water in the presence of a basic potassium compound in a reaction system having a potassium concentration of not more than 9 wt.% at a temperature of not less than 170°C.
摘要翻译： 要解决的问题：提供一种通过在碱性钾化合物的存在下水解M-乙内酰脲来生产甲硫氨酸的方法，其可以有效地防止即使在较高的水解溶液中的水解溶液的液相和气相中的反应容器的腐蚀 温度高，能够更长时间地稳定生产甲硫氨酸。解决方案：产生甲硫氨酸的方法包括在碱性钾化合物存在下，在钾浓度不高的反应体系中水解5-（β-甲基巯基乙基）乙内酰脲 在不低于170℃的温度下超过9重量％。
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公开(公告)号：JP2011195517A
公开(公告)日：2011-10-06
申请号：JP2010065120
申请日：2010-03-19
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： IMADA NAOKO , KOIZUMI YOSHIYUKI , AZEMI TAKUSHI
IPC分类号： C07C319/28 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a production method improving the recovering amount in secondary crystallization.SOLUTION: This method for producing the methionine is provided by comprising the following processes (1) to (3): (1) a reaction process of hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound, (2) a first crystallization process of introducing carbon dioxide into the reaction liquid obtained from the process (1) to precipitate the methionine and separating the obtained slurry into the precipitate and mother liquor, and (3) a second crystallization process of adding the basic potassium compound to the mother liquor obtained in the process (2), heat-treating, then introducing carbon dioxide to precipitate the methionine and potassium hydrogen carbonate and separating the obtained slurry into the precipitate and mother liquor.
摘要翻译： 要解决的问题：提供提高二次结晶回收量的制造方法。溶液：该生产甲硫氨酸的方法由下述（1）〜（3）的方法提供：（1）水解5 - [2-（甲硫基）乙基]咪唑烷-2,4-二酮在碱性钾化合物存在下，（2）将二氧化碳引入从方法（1）获得的反应液中的第一结晶方法，以沉淀 甲硫氨酸，将得到的浆料分离成沉淀物和母液，（3）将碱性钾化合物加入到方法（2）中得到的母液中的第二结晶方法，进行热处理，然后引入二氧化碳沉淀 甲硫氨酸和碳酸氢钾，将得到的浆液分离成沉淀物和母液。
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公开(公告)号：JP2011126794A
公开(公告)日：2011-06-30
申请号：JP2009284420
申请日：2009-12-15
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： IMADA NAOKO , KOIZUMI YOSHIYUKI , AZEMI TAKUSHI
IPC分类号： C07C319/20 , C07B61/00 , C07C319/28 , C07C323/58
摘要： PROBLEM TO BE SOLVED: To provide a method for producing methionine, which improves a recovery amount in a third crystal.
SOLUTION: The method for producing methionine includes (1) a reaction step of hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound, (2) a first crystallization step of introducing carbon dioxide to the reaction solution obtained in the step (1) to precipitate the methionine and separating the obtained slurry into a precipitate and a mother liquor, (3) a second crystallization step of introducing carbon dioxide into the mother liquor obtained in the step (2) to precipitate the methionine and potassium hydrogen carbonate and separating the obtained slurry into a precipitate and a mother liquor and (4) a third crystallization step of adding a basic potassium compound to the mother liquor obtained in the step (3), performing a heat-treatment and introducing carbon dioxide to the heat-treated product to precipitate the methionine and potassium hydrogen carbonate and separating the obtained slurry into a precipitate and a mother liquor.
COPYRIGHT: (C)2011,JPO&INPIT摘要翻译： 要解决的问题：提供一种提高甲硫氨酸的方法，其提高第三晶体的回收量。 解决方案：产生甲硫氨酸的方法包括（1）在碱性钾化合物存在下水解5- [2-（甲硫基）乙基]咪唑烷-2,4-二酮的反应步骤，（2）第一 将二氧化碳引入到步骤（1）中获得的反应溶液中的结晶步骤以沉淀甲硫氨酸并将所得浆料分离成沉淀物和母液，（3）将二氧化碳引入所得母液中的第二结晶步骤 在步骤（2）中沉淀甲硫氨酸和碳酸氢钾并将所得浆料分离成沉淀物和母液，和（4）第三结晶步骤，向步骤（3）中得到的母液中加入碱性钾化合物 ），对热处理物进行热处理并引入二氧化碳，使甲硫氨酸和碳酸氢钾沉淀，将得到的浆料分离成析出物和母液。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2010111663A
公开(公告)日：2010-05-20
申请号：JP2009234103
申请日：2009-10-08
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： FUJITA KAZUO , ONISHI KOZO , KOIZUMI YOSHIYUKI
IPC分类号： C07C319/20 , C07B61/00 , C07C319/28 , C07C323/52
CPC分类号： C07C319/20 , C07C319/28 , C22C38/44 , C07C323/52
摘要： PROBLEM TO BE SOLVED: To provide a cheaper material as a material for constructing an apparatus to be used in solid/liquid separation for separating a residue comprising an inorganic salt remaining in an organic phase subsequent to concentrating the organic phase obtained by the phase separation of a neutralized reaction liquid resulting from hydrolyzing a hydrate obtained by hydrating 2-hydroxy-4-methylthiobutanenitrile. SOLUTION: There is provided a method of producing 2-hydroxy-4-methylthiobutanoic acid by hydrating 2-hydroxy-4-methylthiobutanenitrile, hydrolyzing the hydrate, neutralizing the resulting reaction liquid, concentrating an organic phase obtained by the phase separation thereof, and subsequently carrying out solid/liquid separation for separating a residue comprising an inorganic salt remaining in the organic phase, which method employs an alloy comprising Cr by 21.0 to 30.0 wt.%, Ni by 2.5 to 11.0 wt.%, Mo by 1.0 to 5.0 wt.%, and Fe constituting the balance, as a material for constructing an apparatus for use in the solid/liquid separation and carries out the solid/liquid separation at a temperature of 60 to 95°C. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译： 要解决的问题：提供一种较便宜的材料作为用于构建用于固/液分离的装置的材料，用于分离残留在有机相中的残留物的残留物，在浓缩由 通过水合2-羟基-4-甲硫基丁腈水合而得到的水合物中和的反应液相分离。 提供了通过水合2-羟基-4-甲硫基丁腈生产2-羟基-4-甲硫基丁酸的方法，水解水合物，中和所得反应液，浓缩通过其相分离获得的有机相 ，然后进行固/液分离以分离残留在有机相中的无机盐的残渣，该方法使用包含Cr：21.0〜30.0重量％，Ni：2.5〜11.0重量％，Mo：1.0 至5.0重量％，构成余量的Fe作为构成固/液分离用装置的材料，在60〜95℃的温度下进行固/液分离。 版权所有（C）2010，JPO＆INPIT
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