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1. 发明授权

US07189872B2 Process for producing (meth)acrylic acid 有权
标题翻译：（甲基）丙烯酸的制造方法
公开(公告)号：US07189872B2
公开(公告)日：2007-03-13
申请号：US10864498
申请日：2004-06-10
申请人： Shuhei Yada , Kiyoshi Takahashi , Kenji Takasaki , Yasushi Ogawa , Kimikatsu Jinno , Yoshiro Suzuki
发明人： Shuhei Yada , Kiyoshi Takahashi , Kenji Takasaki , Yasushi Ogawa , Kimikatsu Jinno , Yoshiro Suzuki
IPC分类号： C07C51/16 , C07C51/42
CPC分类号： B01D3/146 , C07C51/44 , C07C57/04
摘要： Clogging of a distillation column by polymerization caused by a change of the production rate of (meth)acrylic acid, is prevented to carry out a stabilized operation over a long period. A process for producing (meth)acrylic acid, which includes a purification step wherein a (meth)acrylic acid-containing material to be purified is supplied to and distilled by a distillation column, wherein during a cut operation in which the production rate of (meth)acrylic acid is reduced by α% relative to the production rate of (meth)acrylic acid during the ordinary operation, the liquid/gas flow rate in the distillation column is adjusted to be at least (100−α/2)% of the liquid/gas flow rate during the ordinary operation.
摘要翻译：通过由（甲基）丙烯酸的生成速度的变化引起的聚合引起的蒸馏塔的堵塞被阻止长期进行稳定化的操作。一种制备（甲基）丙烯酸的方法，其包括纯化步骤，其中将要纯化的（甲基）丙烯酸的物质供应到蒸馏塔并蒸馏，其中在其中生产速率（甲基）丙烯酸在常规操作中相对于（甲基）丙烯酸的生产速率降低α％，将蒸馏塔中的液/气流量调节至至少（100-α/ 2）％在普通操作期间的液/气流量。

2. 发明申请

US20050252760A1 Distillation apparatus for readily polymerizable compound 失效
标题翻译：用于易聚合的化合物的蒸馏装置
公开(公告)号：US20050252760A1
公开(公告)日：2005-11-17
申请号：US11188710
申请日：2005-07-26
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki , Kiyoshi Takahashi
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki , Kiyoshi Takahashi
IPC分类号： B01D3/10 , B01D3/14 , B01D3/22 , B01D3/32 , B01D3/42 , C07B31/00
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： In a distillation apparatus, a production process and a purification method of readily polymerizable compounds, a problem of the invention is to solve a serious plugging problem in a large-sized distillation column as in the commercial equipment and to provide an apparatus and a method for distilling and purifying a readily polymerizable compound stably over a long period of time. The invention of the invention is concerned with a distillation apparatus for subjecting a crude readily polymerizable compound to distillation under vacuum conditions to purify it, the distillation apparatus having a distillation column and a vacuum generator and an exhaust gas conduit of the vacuum generator connected to a connecting conduit therebetween through a pressure control valve; and a method of purifying of a readily polymerizable compound by subjecting a crude readily polymerizable compound to distillation under vacuum conditions to purify it, the method including using a distillation apparatus comprising a distillation column and a vacuum generator and an exhaust gas conduit of the vacuum generator connected to a connecting conduit therebetween through a pressure control valve 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：在蒸馏装置中，容易聚合的化合物的制备方法和纯化方法，本发明的问题在于解决商业设备中的大型蒸馏塔中的严重堵塞问题，并提供一种装置和方法在长时间内稳定地蒸馏提纯容易聚合的化合物。本发明涉及一种用于使粗易聚合性化合物在真空条件下进行蒸馏以纯化的蒸馏装置，所述蒸馏装置具有蒸馏塔和真空发生器以及与真空发生器连接的真空发生器和废气导管通过压力控制阀连接导管; 以及通过使粗易于聚合的化合物在真空条件下进行蒸馏以纯化易于聚合的化合物的方法，所述方法包括使用包括蒸馏塔和真空发生器的蒸馏装置以及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，并且基于蒸馏塔的压力控制压力控制阀的作用，从而控制要引入的废气量以控制蒸馏塔的压力。

3. 发明授权

US07473338B2 Distillation apparatus for readily polymerizable compound 失效
标题翻译：用于易聚合的化合物的蒸馏装置
公开(公告)号：US07473338B2
公开(公告)日：2009-01-06
申请号：US11188710
申请日：2005-07-26
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki , Kiyoshi Takahashi
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki , Kiyoshi Takahashi
IPC分类号： B01D3/10 , B01D3/42 , C07C51/44 , C07C51/50
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 it, the distillation apparatus having a distillation column and a vacuum generator and an exhaust gas conduit of the vacuum generator connected to a connecting conduit therebetween through a pressure control valve. A method provides purifying of a readily polymerizable compound by subjecting a crude readily polymerizable compound to distillation under vacuum conditions to purify it, the method including using a distillation apparatus having a distillation column and a vacuum generator and an exhaust gas conduit of the vacuum generator connected to a connecting conduit therebetween through a pressure control valve and controlling the action of the pressure control valve based on a pressure of the distillation column.
摘要翻译：一种蒸馏装置，用于使粗易于聚合的化合物在真空条件下进行蒸馏以净化，所述蒸馏装置具有蒸馏塔和真空发生器以及通过压力控制阀连接到其间的连接导管的真空发生器和废气导管。一种方法是通过使粗易于聚合的化合物在真空条件下进行蒸馏来纯化易于聚合的化合物，该方法包括使用具有蒸馏塔和真空发生器的蒸馏装置和连接到真空发生器的排气导管通过压力控制阀连接到它们之间的连接导管，并且基于蒸馏塔的压力控制压力控制阀的作用。

4. 发明授权

US07348455B2 Process for producing (meth)acrylic acids 有权
标题翻译：（甲基）丙烯酸的制造方法
公开(公告)号：US07348455B2
公开(公告)日：2008-03-25
申请号：US10859221
申请日：2004-06-03
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kiyoshi Takahashi , Kenji Takasaki
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kiyoshi Takahashi , Kenji Takasaki
IPC分类号： C07C51/16 , C07C57/02
CPC分类号： C07C51/252 , B01D3/14 , B01D3/225 , B01D3/24 , B01D3/322 , B01J8/228 , B01J14/00 , B01J19/006 , B01J19/0066 , B01J19/18 , B01J2208/00283 , B01J2208/003 , B01J2208/0084 , B01J2219/00006 , B01J2219/00094 , B01J2219/00247 , B01J2219/00252 , B01J2219/00774 , C07C57/04
摘要： A process for producing (meth)acrylic acid or (meth)acrylic acid esters, which comprises a reaction step comprising vapor phase catalytic oxidation of propylene, propane or isobutylene and, if necessary, a reaction step comprising an esterification step, characterized in that at the time when a high boiling mixture (hereinafter referred to as a high boiling material) containing a Michael addition product, is decomposed in a decomposition reactor to recover (meth)acrylic acids, while forcibly imparting a liquid flow in the circumferential direction to a liquid reaction residue in the decomposition reactor, the liquid reaction residue is discharged. In a process for recovering a valuable substance by thermally decomposing the high boiling material containing the Michael addition product of (meth)acrylic acids, it is possible to transfer the decomposition residue from the decomposition reactor to the storage tank without clogging, whereby a long-term continuous operation is possible.
摘要翻译：一种制备（甲基）丙烯酸或（甲基）丙烯酸酯的方法，其包括反应步骤，其包括丙烯，丙烷或异丁烯的气相催化氧化，如果需要，包括酯化步骤的反应步骤，其特征在于在当在分解反应器中分解含有迈克尔加成产物的高沸点混合物（以下称为高沸点物质）以回收（甲基）丙烯酸时，同时强制地将液体在圆周方向上的液体流向液体反应残渣在分解反应器中，液体反应残渣排出。在通过热分解包含（甲基）丙烯酸的迈克尔加成产物的高沸点材料来回收有价物质的方法中，可以将分解残留物从分解反应器转移到储罐而不堵塞，长期连续运行是可能的。

5. 发明授权

US07288169B2 Distillation apparatus for readily polymerizable compound 有权
标题翻译：用于易聚合的化合物的蒸馏装置
公开(公告)号：US07288169B2
公开(公告)日：2007-10-30
申请号：US10781986
申请日：2004-02-20
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki , Kiyoshi Takahashi
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki , Kiyoshi Takahashi
IPC分类号： B01D3/10 , B01D3/42
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。

6. 发明申请

US20070129571A1 PROCESS FOR PRODUCING (METH)ACRYLIC ACIDS 审中-公开
标题翻译：生产（甲基）丙烯酸的方法
公开(公告)号：US20070129571A1
公开(公告)日：2007-06-07
申请号：US11674247
申请日：2007-02-13
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kiyoshi Takahashi , Kenji Takasaki
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kiyoshi Takahashi , Kenji Takasaki
IPC分类号： C07C51/42 , C07C51/16 , B01J8/18
CPC分类号： C07C51/252 , B01D3/14 , B01D3/225 , B01D3/24 , B01D3/322 , B01J8/228 , B01J14/00 , B01J19/006 , B01J19/0066 , B01J19/18 , B01J2208/00283 , B01J2208/003 , B01J2208/0084 , B01J2219/00006 , B01J2219/00094 , B01J2219/00247 , B01J2219/00252 , B01J2219/00774 , C07C57/04
摘要： A process for producing (meth)acrylic acid or (meth)acrylic acid esters, which comprises a reaction step comprising vapor phase catalytic oxidation of propylene, propane or isobutylene and, if necessary, a reaction step comprising an esterification step, characterized in that at the time when a high boiling mixture (hereinafter referred to as a high boiling material) containing a Michael addition product, is decomposed in a decomposition reactor to recover (meth)acrylic acids, while forcibly imparting a liquid flow in the circumferential direction to a liquid reaction residue in the decomposition reactor, the liquid reaction residue is discharged. In a process for recovering a valuable substance by thermally decomposing the high boiling material containing the Michael addition product of (meth)acrylic acids, it is possible to transfer the decomposition residue from the decomposition reactor to the storage tank without clogging, whereby a long-term continuous operation is possible.
摘要翻译：一种制备（甲基）丙烯酸或（甲基）丙烯酸酯的方法，其包括反应步骤，其包括丙烯，丙烷或异丁烯的气相催化氧化，如果需要，包括酯化步骤的反应步骤，其特征在于在当在分解反应器中分解含有迈克尔加成产物的高沸点混合物（以下称为高沸点物质）以回收（甲基）丙烯酸时，同时强制地将液体在圆周方向上的液体流向液体反应残渣在分解反应器中，液体反应残渣排出。在通过热分解包含（甲基）丙烯酸的迈克尔加成产物的高沸点材料来回收有价物质的方法中，可以将分解残留物从分解反应器转移到储罐而不堵塞，长期连续运行是可能的。

7. 发明授权

US07476299B2 Vessel for easily polymerizable compound 有权
标题翻译：容易聚合的化合物的容器
公开(公告)号：US07476299B2
公开(公告)日：2009-01-13
申请号：US11399470
申请日：2006-04-07
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki
IPC分类号： B01D1/30 , B01D3/14 , B01D3/32 , B01J19/00
CPC分类号： B01D3/14 , B01D3/322 , Y10S159/02 , Y10S159/901 , Y10S203/22 , Y10S203/90
摘要： A decomposition reaction apparatus or distillation apparatus for acrylic acid in which a column bottom liquid heated in a reboiler (5) is supplied from a supply port (1a) provided on a side wall of a column body (1) having: a top plate (12a) above the supply port (1a); and an impingement plate (12b) provided vertically to the top plate (12a), for preventing scattering of the column bottom liquid to a supply direction. The top plate (12a) is provided such that the top face of the top plate (12a) is inclined downward from a base end to a tip end. The present invention allows: suppression of formation of a polymerized product due to flowing of a liquid or gas heated in a reboiler into a column with a simple structure; and a stable continuous operation of column equipment over a long period of time.
摘要翻译：一种用于丙烯酸的分解反应装置或蒸馏装置，其中在再沸器（5）中加热的塔底液体从设置在具有顶板的塔体（1）的侧壁上的供应口（1a）供应 12a）在供应口（1a）上方; 以及垂直于顶板（12a）设置的冲击板（12b），用于防止塔底液体向供给方向的散射。顶板（12a）设置成使得顶板（12a）的顶面从基端向尖端向下倾斜。本发明允许：抑制由于在再沸器中加热的液体或气体流入具有简单结构的塔中的聚合产物的形成; 并长期稳定地连续运行立柱设备。

8. 发明申请

US20080245652A1 METHOD FOR PURIFYING (METH)ACRYLIC ACID 审中-公开
标题翻译：纯化（甲基）丙烯酸的方法
公开(公告)号：US20080245652A1
公开(公告)日：2008-10-09
申请号：US12014186
申请日：2008-01-15
申请人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki
发明人： Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki , Kenji Takasaki
IPC分类号： B01D3/34
CPC分类号： B01D3/146 , B01D1/225 , C07C51/44 , C07C57/04
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。

9. 发明申请

US20080021239A1 Process for Producing (Meth)Acrylic Acid or (Meth)Acrolein 审中-公开
标题翻译：生产（甲基）丙烯酸或（甲基）丙烯醛的方法
公开(公告)号：US20080021239A1
公开(公告)日：2008-01-24
申请号：US11596366
申请日：2004-11-05
申请人： Yasushi Ogawa , Shuhei Yada , Yoshiro Suzuki , Kenji Takasaki
发明人： Yasushi Ogawa , Shuhei Yada , Yoshiro Suzuki , Kenji Takasaki
IPC分类号： C07C45/33
CPC分类号： C07C45/35 , C07C45/33 , C07C51/215 , C07C51/252 , C07C47/22 , C07C57/04
摘要： The object of the invention is to provide a method for producing (meth)acrylic acid or (meth)acrolein from at least one of propylene, propane, isobutylene and (meth)acrolein as a raw material by carrying out its gas phase catalytic oxidation reaction with molecular oxygen or a molecular oxygen-containing gas using a multi-tubular reactor, which is a method that can be operated more safely by feeding a gas prepared in advance by mixing the raw material with molecular oxygen or a molecular oxygen-containing gas safely into the reactor by controlling generation and propagation of fire. The invention is a method for producing (meth)acrylic acid or (meth)acrolein, characterized in that a mixed gas formed by mixing the aforementioned raw material with the aforementioned molecular oxygen or a molecular oxygen-containing gas is fed into the aforementioned reactor via a piping equipped with a flame arrester.
摘要翻译：本发明的目的是提供一种通过进行气相催化氧化反应从丙烯，丙烷，异丁烯和（甲基）丙烯醛中的至少一种作为原料生产（甲基）丙烯酸或（甲基）使用多管式反应器的分子氧或含分子氧气体，其是通过将原料与分子氧或含分子氧的气体混合而预先制备的气体可以更安全地操作的方法通过控制火的产生和传播进入反应堆。本发明是一种生产（甲基）丙烯酸或（甲基）丙烯醛的方法，其特征在于将上述原料与上述分子氧或含分子氧气混合形成的混合气体通过配有防火器的管道。

10. 发明申请

US20070213567A1 Process For Producing Acrolein And/Or Acrylic Acid 审中-公开
标题翻译：生产丙烯醛和/或丙烯酸的方法
公开(公告)号：US20070213567A1
公开(公告)日：2007-09-13
申请号：US11547864
申请日：2004-10-13
申请人： Yasushi Ogawa , Shuhei Yada , Yoshiro Suzuki , Kenji Takasaki
发明人： Yasushi Ogawa , Shuhei Yada , Yoshiro Suzuki , Kenji Takasaki
IPC分类号： C07C45/00
CPC分类号： C07C51/215 , C07C45/33 , C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要： An object of the present invention is to provide a method of producing acrolein and/or acrylic acid, with which method even when air that contains a lot of floating particles is used as an oxygen source, without suffering from deterioration of catalyst performance owing to coking and so on of the catalyst and inconveniences such as an increase in the pressure difference and clogging of a reaction tube, with a high yield and stably over a long time, acrolein and/or acrylic acid can be produced. The present invention relates to a method of producing acrolein and/or acrylic acid by subjecting propylene or propane to a gas phase oxidation with an oxygen-containing gas under the presence of an oxidation catalyst, wherein as an oxygen source air from which the floating particles are removed is used.
摘要翻译：本发明的目的是提供一种制备丙烯醛和/或丙烯酸的方法，即使使用含有大量漂浮颗粒的空气作为氧源，也不会由于焦化而遭受催化剂性能的劣化可以生产出催化剂和诸如压力差增加和反应管堵塞的问题，以高产率和长时间稳定地产生丙烯醛和/或丙烯酸的不便之处。本发明涉及通过在氧化催化剂存在下，用含氧气体对丙烯或丙烷进行气相氧化制备丙烯醛和/或丙烯酸的方法，其中作为氧源空气，浮选颗粒被删除被使用。

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