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11. 发明授权

US5856567A Continuous hydrolysis process for preparing 2-hydroxy-4-methylthiobutanioc acid or salts thereof 失效
标题翻译：用于制备2-羟基-4-甲硫基丁酸或其盐的连续水解方法
公开(公告)号：US5856567A
公开(公告)日：1999-01-05
申请号：US647161
申请日：1996-05-21
申请人： Yung C. Hsu , Thomas F. Blackburn , Paul F. Pellegrin , Allen H. Kranz , James M. Willock
发明人： Yung C. Hsu , Thomas F. Blackburn , Paul F. Pellegrin , Allen H. Kranz , James M. Willock
IPC分类号： A23K1/16 , B01J14/00 , B01J19/18 , B01J19/24 , C07C319/18 , C07C319/20 , C07C323/52 , C07C323/60 , C07C381/00 , C07C51/42
CPC分类号： B01J19/1837 , A23K20/105 , B01J14/00 , B01J19/18 , B01J19/1862 , B01J19/1881 , B01J19/24 , B01J19/243 , B01J19/2435 , B01J19/245 , C07C319/18 , C07C319/20 , B01J2219/00013 , B01J2219/00033 , B01J2219/00063 , B01J2219/00094 , B01J2219/00099 , B01J2219/00103 , B01J2219/0011 , B01J2219/00166 , B01J2219/185
摘要： A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.
摘要翻译：一种用于制备2-羟基-4-甲硫基丁酸或其盐的连续方法，其包括将无机酸水溶液引入腈水解反应器，包括连续搅拌釜反应器并将2-羟基-4-甲硫基丁腈引入腈水解反应堆。在腈水解反应器内不断水解2-羟基-4-甲硫基丁腈，生成含有2-羟基-4-甲硫基丁酰胺的腈水解反应器产物流。将腈水解反应器产物流连续引入酰胺水解流反应器。 2-氨基-4-甲硫基丁酰胺在酰胺水解流反应器内连续水解，得到含有2-羟基-4-甲硫基丁酸的含水解产物。从水解产物水溶液中回收2-羟基-4-甲硫基丁酸。

12. 发明授权

US5637766A Process for the preparation of 3-(methylthio) propanal 失效
标题翻译：制备3-（甲硫基）丙醛的方法
公开(公告)号：US5637766A
公开(公告)日：1997-06-10
申请号：US557699
申请日：1995-11-13
申请人： Yung C. Hsu , Dennis A. Ruest
发明人： Yung C. Hsu , Dennis A. Ruest
IPC分类号： C07C45/35 , C07C319/18 , C07C323/22 , C07C51/08
CPC分类号： C07C319/18 , C07C45/35 , B01J2208/00716
摘要： A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone.
摘要翻译：连续制备3-（甲硫基）丙醛的方法。液体反应介质与气/液接触区中的气态丙烯醛进料流接触。反应介质含有3-（甲硫基）丙醛，甲硫醇和用于甲硫醇与丙烯醛反应的催化剂。气态丙烯醛进料流包含丙烯醛蒸气和不可冷凝气体。丙烯醛从丙烯醛进料流转移到反应介质中并与该介质中的甲硫醇反应，生成含有3-（甲硫基）丙醛的液体反应产物。不可冷凝气体与液体反应产物分离。将反应产物分成产物级分和循环级分，循环级分再循环至气/液接触区。

13. 发明授权

US06548701B2 Process for the preparation of 3-(methylthio)propanal 失效
标题翻译：制备3-（甲硫基）丙醛的方法
公开(公告)号：US06548701B2
公开(公告)日：2003-04-15
申请号：US09972748
申请日：2001-10-05
申请人： Yung C. Hsu , Dennis A. Ruest
发明人： Yung C. Hsu , Dennis A. Ruest
IPC分类号： C07C31500
CPC分类号： C07C45/35 , B01J2208/00716 , C07C45/783 , C07C45/81 , C07C319/18 , C07C323/22 , C07C47/22
摘要： A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone.
摘要翻译：连续制备3-（甲硫基）丙醛的方法。液体反应介质与气/液接触区中的气态丙烯醛进料流接触。反应介质含有3-（甲硫基）丙醛，甲硫醇和用于甲硫醇与丙烯醛反应的催化剂。气态丙烯醛进料流包含丙烯醛蒸气和不可冷凝气体。丙烯醛从丙烯醛进料流转移到反应介质中并与该介质中的甲硫醇反应，生成含有3-（甲硫基）丙醛的液体反应产物。不可冷凝气体与液体反应产物分离。将反应产物分成产物级分和循环级分，循环级分再循环至气/液接触区。

14. 发明授权

US06320076B1 Process for the preparation of 3-(methylthio) propanal 失效
标题翻译：制备3-（甲硫基）丙醛的方法
公开(公告)号：US06320076B1
公开(公告)日：2001-11-20
申请号：US09470407
申请日：1999-12-22
申请人： Yung C. Hsu , Dennis A. Ruest
发明人： Yung C. Hsu , Dennis A. Ruest
IPC分类号： C07C31500
CPC分类号： C07C45/35 , B01J2208/00716 , C07C45/783 , C07C45/81 , C07C319/18 , C07C323/22 , C07C47/22
摘要： A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone.
摘要翻译：连续制备3-（甲硫基）丙醛的方法。液体反应介质与气/液接触区中的气态丙烯醛进料流接触。反应介质含有3-（甲硫基）丙醛，甲硫醇和用于甲硫醇与丙烯醛反应的催化剂。气态丙烯醛进料流包含丙烯醛蒸气和不可冷凝气体。丙烯醛从丙烯醛进料流转移到反应介质中并与该介质中的甲硫醇反应，生成含有3-（甲硫基）丙醛的液体反应产物。不可冷凝气体与液体反应产物分离。将反应产物分成产物级分和循环级分，循环级分再循环至气/液接触区。

15. 发明授权

US5744647A Process for the preparation of 3-(methylthio) propanal 失效
公开(公告)号：US5744647A
公开(公告)日：1998-04-28
申请号：US679701
申请日：1996-07-11
申请人： Yung C. Hsu , Dennis A. Ruest
发明人： Yung C. Hsu , Dennis A. Ruest
IPC分类号： C07C45/35 , C07C319/18 , C07C323/22 , C07C323/50
CPC分类号： C07C319/18 , C07C45/35 , B01J2208/00716
摘要： A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone.

16. 发明授权

US06166250A Continuous hydrolysis process for the preparation of 2-hydroxy-4-methylthiobutanoic acid 有权
公开(公告)号：US06166250A
公开(公告)日：2000-12-26
申请号：US165806
申请日：1998-10-02
申请人： Yung C. Hsu , Thomas F. Blackburn , Paul F. Pellegrin , Allen H. Kranz , James M. Willock
发明人： Yung C. Hsu , Thomas F. Blackburn , Paul F. Pellegrin , Allen H. Kranz , James M. Willock
IPC分类号： A23K1/16 , B01J14/00 , B01J19/18 , B01J19/24 , C07C319/18 , C07C319/20 , C07C323/52 , C07C323/60 , C07C51/42 , C07C381/00
CPC分类号： B01J19/1837 , A23K20/105 , B01J14/00 , B01J19/18 , B01J19/1862 , B01J19/1881 , B01J19/24 , B01J19/243 , B01J19/2435 , B01J19/245 , B01J2219/00013 , B01J2219/00033 , B01J2219/00063 , B01J2219/00094 , B01J2219/00099 , B01J2219/00103 , B01J2219/0011 , B01J2219/00166 , B01J2219/185 , C07C319/18 , C07C319/20 , C07C323/52 , C07C323/60
摘要： A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.

17. 发明授权

US5998664A Continuous hydrolysis process for the preparation of 2-hydroxy-4-methylthiobutanoic acid 失效
公开(公告)号：US5998664A
公开(公告)日：1999-12-07
申请号：US876011
申请日：1997-06-13
申请人： Yung C. Hsu , Thomas F. Blackburn , Paul F. Pellegrin , Allen H. Kranz , James M. Willock
发明人： Yung C. Hsu , Thomas F. Blackburn , Paul F. Pellegrin , Allen H. Kranz , James M. Willock
IPC分类号： A23K1/16 , B01J14/00 , B01J19/18 , B01J19/24 , C07C319/18 , C07C319/20 , C07C323/52 , C07C323/60 , C07C51/42 , C07C381/00
CPC分类号： B01J19/1837 , A23K20/105 , B01J14/00 , B01J19/18 , B01J19/1862 , B01J19/1881 , B01J19/24 , B01J19/243 , B01J19/2435 , B01J19/245 , C07C319/18 , C07C319/20 , B01J2219/00013 , B01J2219/00033 , B01J2219/00063 , B01J2219/00094 , B01J2219/00099 , B01J2219/00103 , B01J2219/0011 , B01J2219/00166 , B01J2219/185
摘要： A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.

18. 发明授权

US4934548A Liquid container 失效
标题翻译：液体容器
公开(公告)号：US4934548A
公开(公告)日：1990-06-19
申请号：US334136
申请日：1989-04-06
申请人： Yung C. Hsu
发明人： Yung C. Hsu
IPC分类号： B65D23/06
CPC分类号： B65D23/065 , B65D23/06
摘要： A container designed so that after pouring out a liquid therefrom, any liquid inadvertently remaining on and running down the outside surface of the container opening can be returned to the inside of the container so that the container and its storage place will not be dirtied by the liquid and other foreign material. The container includes a guiding piece having a tubular piece and a drain hole, a cap, and a stopping annulus having a ring which passes through the tubular piece, has a diameter smaller than that of the open top of the container body but larger than that of the tubular piece, and includes an upper end lower than that of the tubular piece and a lower end higher than a bottom portion of the open top. A liquid guiding device is provided for guiding out of the container the liquid contained therein.
摘要翻译：设计成使得在从其中倒出液体之后，容器开口的外表面上无意中残留的任何液体可以返回到容器的内部，使得容器及其储存位置不会被污染液体等异物。容器包括具有管状件和排水孔的导向件，盖和具有穿过管状件的环的止动环，其直径小于容器主体的敞开顶部的直径，但大于并且包括比管状件低的上端和比开口顶部的底部高的下端。液体引导装置用于将包含在其中的液体引导出容器。

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