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公开(公告)号：US07828021B2
公开(公告)日：2010-11-09
申请号：US11569308
申请日：2004-11-05
申请人： Kenji Takasaki , Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki
发明人： Kenji Takasaki , Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki
IPC分类号： B65B1/20
摘要： A method of storing (meth)acrylate in a tank of a less expensive and highly versatile material without losing stability of the stored (meth)acrylate. To be specific, a method of storing (meth)acrylate in a tank, including supplying an appropriate gas for storing (meth)acrylate into the tank, in which: the tank is made of a carbon steel material; the gas has a water concentration of 100 ppm or less; and the (meth)acrylate has a (meth)acrylic acid concentration of 30 ppm or less.
摘要翻译： 一种在不损失所储存的（甲基）丙烯酸酯的稳定性的情况下，将（甲基）丙烯酸酯储存在较便宜和高通用性材料的罐中的方法。 具体而言，是在罐内储存（甲基）丙烯酸酯的方法，其特征在于，包括向所述罐供给用于储存（甲基）丙烯酸酯的合适气体，其中：所述罐由碳钢材料制成; 气体的水分浓度为100ppm以下; （甲基）丙烯酸酯的（甲基）丙烯酸浓度为30ppm以下。
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2.发明授权Method for collecting (meth)acrolein or (meth)acrylic acid and collecting device for the same 有权收集（甲基）丙烯醛或（甲基）丙烯酸及其收集装置的方法公开(公告)号：US07786323B2
公开(公告)日：2010-08-31
申请号：US11434164
申请日：2006-05-16
申请人： Shuhei Yada , Yasushi Ogawa , Kenji Takasaki , Yoshiro Suzuki , Kimikatsu Jinno
发明人： Shuhei Yada , Yasushi Ogawa , Kenji Takasaki , Yoshiro Suzuki , Kimikatsu Jinno
IPC分类号： B01D47/00
摘要： (Meth)acrolein or (meth)acrylic acid is collected by bringing a reaction gas (1) containing (meth)acrolein or (meth)acrylic acid obtained through a vapor-phase catalytic oxidation reaction into contact with an aqueous solution as a collecting solvent in a collecting tower main body (2). The reaction gas (1) is supplied to the collecting tower main body (2) from two nozzles (2c) facing each other, and is caused to collide in the collecting tower main body (2). According to the present invention, (meth)acrolein or (meth)acrylic acid can be efficiently collected from a gas containing (meth)acrolein or (meth)acrylic acid while preventing polymerization.
摘要翻译： （甲基）丙烯醛或（甲基）丙烯酸通过将含有（甲基）丙烯醛或通过气相催化氧化反应获得的（甲基）丙烯酸）的反应气体（1）与作为收集溶剂的水溶液接触而收集 在收集塔主体（2）中。 反应气体（1）从彼此面对的两个喷嘴（2c）供给到收集塔主体（2），并且与收集塔主体（2）碰撞。 根据本发明，可以从含有（甲基）丙烯醛或（甲基）丙烯酸的气体中有效地收集（甲基）丙烯醛或（甲基）丙烯酸，同时防止聚合。
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公开(公告)号：US20080271984A1
公开(公告)日：2008-11-06
申请号：US11578237
申请日：2004-09-07
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kimikatsu Jinno
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kimikatsu Jinno
IPC分类号： B01D5/00
CPC分类号： B01D5/003 , B01D5/0078 , C07C51/50 , Y10S203/22 , C07C57/04
摘要： A condenser includes: a top face of a tube plate on which acrylic acid may be condensed inside the condenser; a spray for spreading a polymerization inhibitor on the tube plate; a first polymerization inhibitor supply tube for supplying the polymerization inhibitor to the spray; and a supporter for supporting the spray at a predetermined position. The supporter supports the first polymerization inhibitor supply tube outside the condenser. The condenser allows a stable continuous operation for a long period of time by preventing polymerization of an easily polymerizable compound in the condenser into which a vapor of an easily polymerizable compound is supplied with a simple structure thereof.
摘要翻译： 冷凝器包括：管板的顶面，丙烯酸可以在冷凝器内冷凝; 用于在管板上铺展阻聚剂的喷雾剂; 第一聚合抑制剂供应管，用于向喷雾器供应阻聚剂; 以及用于将喷雾支撑在预定位置的支撑件。 支撑体支持冷凝器外的第一个阻聚剂供应管。 冷凝器通过防止容易聚合的化合物在容易聚合的化合物的蒸气以其简单的结构供入的冷凝器中聚合而长期稳定的连续操作。
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公开(公告)号：US20080271539A1
公开(公告)日：2008-11-06
申请号：US11597939
申请日：2004-10-25
申请人： Yasushi Ogawa , Shuhei Yada , Yoshiro Suzuki , Kenji Takasaki , Kimikatsu Jinno
发明人： Yasushi Ogawa , Shuhei Yada , Yoshiro Suzuki , Kenji Takasaki , Kimikatsu Jinno
IPC分类号： G01L13/00
CPC分类号： C07C45/35 , B01J8/06 , B01J2208/00539 , B01J2208/00654 , B01J2208/00734 , B01J2208/00982 , B01J2208/021 , B01J2219/002 , B01J2219/00213 , B01J2219/00225 , B01J2219/0024 , B01J2219/00268 , C07C51/00 , C07C51/252 , C07C47/22 , C07C57/04
摘要： The object of this invention is to provide a method of maintaining a multi-tubular reactor which can ensure the uniformity of states of reaction in the reaction tubes in the multi-tubular reactor.This invention is a method of maintaining a multi-tubular reactor in good condition by selecting a part of reaction tubes in a multi-tubular reactor at random, measuring a differential pressure occurring in each reaction tube when passing gas therethrough, separating any reaction tube showing an abnormal differential pressure as compared with the average of differential pressures in reaction tubes packed with an fresh catalyst of the same kind, giving adequate treatment to the separated reaction tube and returning it into the reactor with any other selected reaction tube falling within a normal range.
摘要翻译： 本发明的目的是提供一种维持多管式反应器的方法，其可以确保多管式反应器中的反应管中的反应状态的均匀性。 本发明是通过在多管式反应器中随机选择反应管的一部分来测量在每个反应管中产生的差压，使气体通过其中的压差，分离任何反应管，显示出多个反应管，从而维持多管式反应器处于良好状态的方法 与装有相同种类的新鲜催化剂的反应管中的压差的平均值相比，产生异常压差，给分离的反应管提供足够的处理并将其返回到反应器中，任何其它选择的反应管落在正常范围内 。
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公开(公告)号：US20080228003A1
公开(公告)日：2008-09-18
申请号：US12127375
申请日：2008-05-27
IPC分类号： C07C57/04
摘要： The present invention provides a method for efficiently using an aqueous solution of (meth)acrylic acid at a low concentration formed in a production/storage step of (meth)acrylic acid.In the present invention, a (meth)acrylic acid derivative is produced by using as a raw material an aqueous solution of (meth)acrylic acid formed by one or both of: a device which reduces a pressure of a gas comprising (meth)acrylic acid in production of (meth)acrylic acid; and a device which collects (meth)acrylic acid from a gas comprising (meth)acrylic acid.
摘要翻译： 本发明提供一种在（甲基）丙烯酸的制造/储存步骤中形成的低浓度的（甲基）丙烯酸的水溶液的有效利用方法。 在本发明中，以（甲基）丙烯酸的水溶液作为原料，使用（甲基）丙烯酸的水溶液形成的（甲基）丙烯酸衍生物，其中， （甲基）丙烯酸生产中的酸; 以及从包含（甲基）丙烯酸的气体收集（甲基）丙烯酸的装置。
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公开(公告)号：US07414150B2
公开(公告)日：2008-08-19
申请号：US10834075
申请日：2004-04-29
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki
摘要： A method for purifying a crude (meth)acrylic acid obtained by a vapor phase catalytic oxidation method, characterized in that the crude (meth)acrylic acid having most parts of water and acetic acid removed therefrom, is fed to and distilled in a first distillation column of a purification system comprising first to third three distillation columns, the top fraction from the first distillation column is fed to and distilled in the second distillation column, the resulting top fraction is recovered as a high purity (meth)acrylic acid product, the bottoms from the first and second distillation columns are fed to and distilled in the third distillation column, and the resulting top fraction is fed to the first distillation column.
摘要翻译： 一种纯化通过气相催化氧化法得到的粗（甲基）丙烯酸的方法，其特征在于，将从其中除去大部分水和乙酸的粗制（甲基）丙烯酸加入到第一次蒸馏中并蒸馏 包括第一至第三三个蒸馏塔的纯化系统柱，将来自第一蒸馏塔的顶部馏分进料至第二蒸馏塔并在第二蒸馏塔中蒸馏，所得顶馏分作为高纯度（甲基）丙烯酸产物回收， 将第一蒸馏塔和第二蒸馏塔的塔底物进料至第三蒸馏塔并在第三蒸馏塔中蒸馏，并将所得顶馏分进料至第一蒸馏塔。
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公开(公告)号：US07388107B2
公开(公告)日：2008-06-17
申请号：US11587990
申请日：2004-10-20
申请人： Kimikatsu Jinno , Yasushi Ogawa , Yoshiro Suzuki , Shuhei Yada
发明人： Kimikatsu Jinno , Yasushi Ogawa , Yoshiro Suzuki , Shuhei Yada
CPC分类号： C07C51/252 , B01J23/002 , B01J23/8876 , B01J23/94 , B01J38/12 , B01J2523/00 , C07C45/33 , C07C45/35 , C07C51/215 , Y02P20/584 , C07C47/22 , C07C57/04 , B01J2523/12 , B01J2523/13 , B01J2523/305 , B01J2523/41 , B01J2523/54 , B01J2523/68 , B01J2523/842 , B01J2523/845 , B01J2523/847
摘要： A method for producing (meth)acrylic acid or (meth)acrolein, comprising a catalytic gas phase oxidation process for producing (meth)acrylic acid or (meth)acrolein by supplying propylene, propane, or isobutylene and a gas containing molecular oxygen to a reactor which contains a catalyst filled therein, wherein a gas containing molecular oxygen is supplied to the reactor having the catalyst filled therein during shutdown of the catalytic gas phase oxidation process does not lower the reaction activity of the catalyst and the selectivity of target products when re-starting the running after shutdown of the catalytic gas phase oxidation process.
摘要翻译： 一种制备（甲基）丙烯酸或（甲基）丙烯醛的方法，包括通过将丙烯，丙烷或异丁烯和含有分子氧的气体供给到（甲基）丙烯酸的催化气相氧化方法， 含有催化剂填充的反应器，其中在催化气相氧化过程停止期间向含有催化剂填充的催化剂供给含有分子氧的气体不降低催化剂的反应活性和当反应时目标产物的选择性 在催化气相氧化过程关闭后开始运行。
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8.发明授权Oxidation reactor, process for producing (meth)acrylic acids, and method for analyzing easily-polymerizable compounds 有权氧化反应器，（甲基）丙烯酸的制造方法，容易聚合的化合物的分析方法公开(公告)号：US07384607B2
公开(公告)日：2008-06-10
申请号：US10808546
申请日：2004-03-25
IPC分类号： G05B21/00
CPC分类号： B01J8/008 , B01J4/002 , B01J8/02 , B01J19/26 , B01J2208/00973 , B01J2208/025 , B01J2219/00006 , B01J2219/00119 , B01J2219/00247 , B01J2219/00252 , C07C45/35 , C07C51/215 , C07C51/252 , G01N1/2035 , G01N1/2247 , G01N31/005 , G01N33/44 , G01N2001/1062 , G01N2001/2057 , G01N2001/2285 , Y10T436/117497 , C07C47/22 , C07C57/04
摘要： An oxidation reactor includes a reactor body, a manhole nozzle projecting from the reactor body, and a partition plate separating an inside of the manhole nozzle and an inside of the reactor body from each other. In an oxidation reactor including the reactor body and a nozzle projecting from the reactor body, there is provided a means for feeding an inert gas into the nozzle. In a process for producing (meth)acrylic acids by subjecting propane, propylene or isobutylene to catalytic gas-phase oxidation reaction in an oxidation reactor for producing (meth)acrolein or (meth)acrylic acid, the above oxidation reactor is used as the oxidation reactor. In a method for analyzing an easily-polymerizable compound by introducing a gas containing the easily-polymerizable compound into an analyzing apparatus through a sampling tube, a double tube is used as the sampling tube, and a heating medium is fed into an outer tube of the double tube. According to these methods, the oxidation reaction can be stably conducted, and the reaction product gas can be prevented from being condensed and polymerized in the sampling tube, so that an on-line analysis can be performed at a high accuracy for a long period of time.
摘要翻译： 氧化反应器包括反应器主体，从反应器主体突出的人孔喷嘴和将人孔喷嘴内部和反应器主体的内部彼此分开的隔板。 在包括反应器主体和从反应器主体突出的喷嘴的氧化反应器中，设置有用于将惰性气体供给到喷嘴中的装置。 在用于生产（甲基）丙烯醛或（甲基）丙烯酸的氧化反应器中使丙烷，丙烯或异丁烯进行催化气相氧化反应生产（甲基）丙烯酸的方法中，使用上述氧化反应器作为氧化 反应堆。 在通过采样管将含有易聚合化合物的气体引入分析装置的分析容易聚合化合物的方法中，使用双管作为取样管，将加热介质供给到 双管。 根据这些方法，可以稳定地进行氧化反应，可以防止反应产物气体在取样管中冷凝聚合，从而可以高精度地进行长时间的在线分析 时间。
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公开(公告)号：US20080011385A1
公开(公告)日：2008-01-17
申请号：US11569308
申请日：2004-11-05
申请人： Kenji Takasaki , Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki
发明人： Kenji Takasaki , Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki
IPC分类号： B65B31/00
摘要： The present invention relates to a method of storing (meth)acrylate in a tank of a less expensive and highly versatile material without losing stability of the stored (meth)acrylate. To be specific, the present invention relates to a method of storing (meth)acrylate in a tank, including supplying an appropriate gas for storing (meth)acrylate into the tank, in which: the tank is made of a carbon steel material; the gas has a water concentration of 100 ppm or less; and the (meth)acrylate has a (meth) acrylic acid concentration of 30 ppm or less.
摘要翻译： 本发明涉及一种在不损失所储存的（甲基）丙烯酸酯的稳定性的情况下，将（甲基）丙烯酸酯储存在较便宜和高通用性材料的罐中。 具体而言，本发明涉及一种在罐中储存（甲基）丙烯酸酯的方法，包括向罐中提供用于储存（甲基）丙烯酸酯的合适气体，其中：罐由碳钢材料制成; 气体的水分浓度为100ppm以下; （甲基）丙烯酸酯的（甲基）丙烯酸浓度为30ppm以下。
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公开(公告)号：US07288169B2
公开(公告)日：2007-10-30
申请号：US10781986
申请日：2004-02-20
CPC分类号： B01D3/225 , B01D3/10 , B01D3/14 , B01D3/146 , B01D3/22 , B01D3/322 , B01D3/4216 , C07C51/44 , Y10S203/22 , C07C57/04
摘要： A distillation apparatus for subjecting a crude readily polymerizable compound to distillation under vacuum conditions to purify the same includes a distillation column and a vacuum generator, an exhaust gas conduit of the vacuum generator being connected to a connecting conduit therebetween through a pressure control valve. The purification method includes using the disclosed distillation apparatus and controlling the action of the pressure control valve based on a pressure of the distillation column, thereby controlling the amount of the exhaust gas to be introduced to control the pressure of the distillation column.
摘要翻译： 用于使粗易聚合化合物在真空条件下蒸馏以纯化的蒸馏装置包括蒸馏塔和真空发生器，真空发生器的排气导管通过压力控制阀连接到其间的连接导管。 净化方法包括使用所公开的蒸馏装置并基于蒸馏塔的压力控制压力控制阀的作用，从而控制要引入的排气量以控制蒸馏塔的压力。
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