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1. 发明授权

US06031138A Process for the preparation of 3-(methylthio) propanal 失效
公开(公告)号：US06031138A
公开(公告)日：2000-02-29
申请号：US102025
申请日：1998-06-22
申请人： Yung C. Hsu , Dennis A. Ruest
发明人： Yung C. Hsu , Dennis A. Ruest
IPC分类号： C07C323/50 , C07C45/35 , C07C45/78 , C07C45/81 , C07C319/18 , C07C323/22 , C07C323/51 , C07C319/00
CPC分类号： C07C45/35 , C07C319/18 , C07C45/783 , C07C45/81 , 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.

2. 发明授权

US5905171A Process for the preparation of 3-(methylthio)propanal 失效
公开(公告)号：US5905171A
公开(公告)日：1999-05-18
申请号：US667099
申请日：1996-06-20
申请人： Yung C. Hsu
发明人： Yung C. Hsu
IPC分类号： C07C323/50 , C07C45/35 , C07C45/78 , C07C45/81 , C07C319/18 , C07C323/22 , C07C323/51 , C07C319/00
CPC分类号： C07C45/35 , C07C319/18 , C07C45/783 , C07C45/81 , 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.

3. 发明授权

US5044387A Edible grain washer 失效
标题翻译：食用谷物清洗机
公开(公告)号：US5044387A
公开(公告)日：1991-09-03
申请号：US545785
申请日：1990-06-29
申请人： Yung C. Hsu
发明人： Yung C. Hsu
IPC分类号： A47J43/24
CPC分类号： A47J43/24
摘要： An edible grain washer has a hollow body provided with an open side and a closed opposite side. A water inlet port having a screen is provided in an upper side of the hollow body, and a water inlet port having a screen is provided in an upper part of the closed opposite side of the hollow body. A cover is provided to detachably cover the open side of the hollow body, which also has a handle extending from a rear side of the hollow body. The edible grain washer of this invention is convenient for use in homes.
摘要翻译：可食用谷物垫圈具有设置有开口侧和封闭的相对侧的中空体。具有筛网的进水口设置在中空体的上侧，并且在中空体的相对的相对侧的上部设置有具有筛网的进水口。设置有可拆卸地覆盖中空体的敞开侧的盖，该中空体的外侧也具有从中空体的后侧延伸的把手。本发明的食用洗衣机便于家庭使用。

4. 发明授权

US4891190A Incrustation resistive crystallizer employing multifrequency vibrations 失效
标题翻译：采用多频振荡的电阻结晶器
公开(公告)号：US4891190A
公开(公告)日：1990-01-02
申请号：US738899
申请日：1985-05-29
申请人： Don E. Carter , Yung C. Hsu
发明人： Don E. Carter , Yung C. Hsu
IPC分类号： B01D9/00 , F28F19/00
CPC分类号： F28G7/00 , B01D9/0013 , F28F19/008
摘要： An incrustation resistive crystallizer apparatus is disclosed. The crystallizer housing has conduit means for ingress of solution to be crystallized, separate conduit means for ingress and egress of cooling fluid, means for recovery of mother liquor and product crystals either together or separately. A plurality of essentially horizontal perforated plates substantially conforming to the interior shape of the housing are vertically spaced along the housing length. A support member capable of translational movement along the housing length holds the plates in the above-described position. A plurality of mobile bodies are disposed on the upper surface of the plates. A heat transfer conduit disposed substantially parallel to the coaxial support member penetrates through apertures in the horizontal plates. A compound excitation device adapted to produce two waveforms is attached to the support member. The first waveform causes translational plate movement for scraping the surface of the heat transfer conduit. The second waveform causes the plates to vibrate causing the mobile bodies thereon to agitate and collide with each other and the surface of the heat transfer conduit.
摘要翻译：公开了一种结垢电阻结晶器装置。结晶器壳体具有用于进入要结晶的溶液进入的管道装置，用于冷却流体的进入和排出的分离的管道装置，用于一起或分别回收母液和产物晶体的装置。基本上符合壳体的内部形状的多个基本上水平的穿孔板沿壳体长度垂直间隔开。能够沿着壳体长度平移运动的支撑构件将板保持在上述位置。多个移动体设置在板的上表面上。基本上平行于同轴支撑构件设置的传热导管穿过水平板中的孔。适于产生两个波形的复合激励装置附接到支撑构件。第一波形引起平移板移动以刮擦传热导管的表面。第二波形导致板振动，使得其上的移动体在彼此和传热导管的表面之间发生搅拌和碰撞。

5. 发明授权

US06531101B2 Continuous hydrolysis process for preparing 2-hydroxy-4-methylthiobutanoic acid or salts thereof 有权
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：US06531101B2
公开(公告)日：2003-03-11
申请号：US09750584
申请日：2000-12-28
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： B01J800
CPC分类号： B01J19/1837 , A23K20/105 , B01J14/00 , B01J19/18 , B01J19/1862 , B01J19/1881 , B01J19/24 , B01J19/243 , B01J19/2435 , B01J19/245 , B01J19/2465 , B01J2219/00013 , B01J2219/00033 , B01J2219/00063 , B01J2219/00094 , B01J2219/00099 , B01J2219/00103 , B01J2219/0011 , B01J2219/00166 , B01J2219/185 , C07C319/20 , C07C323/60 , C07C323/52
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。

6. 发明授权

US06268531B1 Continuous hydrolysis process for preparing 2-hydroxy-4-methylthiobutanoic acid or salts thereof 有权
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：US06268531B1
公开(公告)日：2001-07-31
申请号：US09165819
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： C07C5142
CPC分类号： B01J19/1837 , A23K20/105 , B01J14/00 , B01J19/18 , B01J19/1862 , B01J19/1881 , B01J19/24 , B01J19/243 , B01J19/2435 , B01J19/245 , B01J19/2465 , B01J2219/00013 , B01J2219/00033 , B01J2219/00063 , B01J2219/00094 , B01J2219/00099 , B01J2219/00103 , B01J2219/0011 , B01J2219/00166 , B01J2219/185 , C07C319/20 , C07C323/60 , C07C323/52
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。在腈水解反应器内连续水解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。

7. 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。

8. 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。

9. 发明授权

US06458997B2 Continuous hydrolysis process for the preparation of 2-hydroxy-4-methylthiobutanoic acid 失效
标题翻译：用于制备2-羟基-4-甲硫基丁酸的连续水解方法
公开(公告)号：US06458997B2
公开(公告)日：2002-10-01
申请号：US09748067
申请日：2000-12-22
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： C07C5142
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.
摘要翻译：一种用于制备2-羟基-4-甲硫基丁酸的连续方法，其包括将硫酸引入到包括连续搅拌釜反应器的第一反应器中并将2-羟基-4-甲硫基丁腈引入第一反应器中。 2-羟基-4-甲硫基丁腈在第一反应器内连续水解，得到含有2-羟基-4-甲硫基丁酰胺的中间水解水解溶液。将中间水解水溶液连续引入活塞流反应器。 2-羟基-4-甲硫基丁酰胺在活塞流反应器内连续水解，生成含有2-羟基-4-甲硫基丁酸的含水解产物溶液。从水解产物水溶液中回收2-羟基-4-甲基硫代丁酸。

10. 发明授权

US5925794A Process for the preparation of 3-(methylthio)propanal 失效
公开(公告)号：US5925794A
公开(公告)日：1999-07-20
申请号：US668572
申请日：1996-06-20
申请人： Yung C. Hsu , Dennis A. Ruest
发明人： Yung C. Hsu , Dennis A. Ruest
IPC分类号： C07C319/18 , C07C323/22 , C07C319/00
CPC分类号： C07C319/18 , 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.

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