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31. 发明授权

US06409886B1 Process for inhibiting the polymerization of easily-polymerizable compounds 有权
标题翻译：抑制易聚合化合物聚合的方法
公开(公告)号：US06409886B1
公开(公告)日：2002-06-25
申请号：US09549531
申请日：2000-04-14
申请人： Yukihiro Matsumoto , Takeshi Nishimura
发明人： Yukihiro Matsumoto , Takeshi Nishimura
IPC分类号： B01D314
CPC分类号： C07C51/50 , B01D3/148 , B01D3/20 , C07C51/44 , C07C67/54 , Y10S203/22 , C07C57/04 , C07C69/54
摘要： In distillation of easily polymerizable compounds such as (meth)acrylic acid and (meth)acrylic esters using a distillation unit, a liquid having substantially the same composition with that of a liquid surrounding a constitutive member placed in the distillation unit is sprayed by a spraying and supplying device. The liquid supplied by the spraying and supplying device preferably has a wetting liquid rate (of the sprayed and supplied liquid, a flow rate of a liquid attaching to and wetting the constitutive member) of 0.5 m3/m2hr or more relative to the surface area of the constitutive member. The liquid supplied by the spraying and supplying device preferably contains a polymerization inhibitor. It is also preferred to supply a gas containing molecular oxygen to the distillation unit. This process can effectively inhibit the polymerization of the easily polymerizable compounds, which polymerization is liable to occur inside the distillation unit.
摘要翻译：在使用蒸馏单元蒸馏易于聚合的化合物如（甲基）丙烯酸和（甲基）丙烯酸酯）时，通过喷雾喷雾与包含在蒸馏单元中的构成成分的液体基本相同的组成的液体和供应装置。由喷雾供给装置供给的液体优选相对于表面积为0.5m 3 / m 2·小时以上的润湿液体率（喷射和供给液体的润湿液体，附着并润湿构成部件的液体的流量）组成成员。由喷雾供给装置供给的液体优选含有阻聚剂。还优选向蒸馏单元供应含有分子氧的气体。该方法可以有效地抑制容易聚合的化合物的聚合，该聚合在蒸馏单元内容易发生聚合。

32. 发明授权

US06372944B1 Liquid withdrawing tray for purification column, purification column, and method for purification 有权
标题翻译：用于净化柱，净化柱和净化方法的抽出塔
公开(公告)号：US06372944B1
公开(公告)日：2002-04-16
申请号：US09667283
申请日：2000-09-22
申请人： Hajime Matsumoto , Takeshi Nishimura , Yukihiro Matsumoto , Sei Nakahara , Misao Inada
发明人： Hajime Matsumoto , Takeshi Nishimura , Yukihiro Matsumoto , Sei Nakahara , Misao Inada
IPC分类号： C07C5142
CPC分类号： C07C51/44 , B01D3/20 , B01D3/4205 , C07C67/54 , Y10S203/11 , C07C57/04 , C07C69/54
摘要： In the purification of an easily polymerizable compound such as (meth)acrylic acid by the use of a purification column adapted to withdraw a liquid from the middle portion of the column, a novel liquid withdrawing tray adapted to prevent the compound from polymerization effectively and permit the purification to be stably performed for a long time, a purification column using this tray, and a method for purifications using this purification column are provided. The liquid withdrawing tray for the purification column is composed of a liquid receiving plate and a liquid withdrawing tube for withdrawing the liquid from the liquid receiving plate.
摘要翻译：在通过使用用于从塔的中间部分抽出液体的净化塔来纯化易于聚合的化合物如（甲基）丙烯酸的方法中，适用于有效地防止化合物聚合的新型液体回收塔，并允许提供长时间稳定地进行的纯化，使用该托盘的纯化塔和使用该纯化塔的纯化方法。用于净化塔的液体排出托盘由液体接收板和用于从液体接收板中取出液体的液体抽出管构成。

33. 发明授权

US07253314B2 Method for refining easily polymerizable matter-containing substance and apparatus therefor 有权
标题翻译：用于精制易聚合物质的物质的方法及其装置
公开(公告)号：US07253314B2
公开(公告)日：2007-08-07
申请号：US10641653
申请日：2003-08-15
申请人： Takeshi Nishimura , Yukihiro Matsumoto
发明人： Takeshi Nishimura , Yukihiro Matsumoto
IPC分类号： C07C51/42 , B01D3/14
CPC分类号： B01D3/14 , B01D3/322 , B01D5/0012 , B01D5/0063 , Y10S159/42
摘要： A method for refining an easily polymerizable matter while preventing an easily polymerizable matter-containing substance from being polymerized and an apparatus for use in the method are disclosed. The method and apparatus for refining and separating the easily polymerizable matter-containing substance by the use of a distillation column provided with a heat exchanger set the linear velocity of a vapor in a connecting line intervening between the distillation column and the heat exchanger at a level of not less than 5 m per second and the retention time of the vapor at a level of not more than 3 seconds.
摘要翻译：公开了一种在容易聚合的物质聚合的同时防止容易聚合的物质的精制的方法和该方法中使用的装置。通过使用设置有热交换器的蒸馏塔来精炼和分离容易聚合的含物质的方法和装置，将蒸馏塔和热交换器之间的连接管中的蒸汽的线速度设定在一定水平不低于5米/秒，蒸气的停留时间不超过3秒。

34. 发明授权

US07102030B2 Method for managing operation of gas phase reaction apparatus 失效
标题翻译：气相反应装置运行管理方法
公开(公告)号：US07102030B2
公开(公告)日：2006-09-05
申请号：US10796254
申请日：2004-03-09
申请人： Kenji Sanada , Yukihiro Matsumoto , Takeshi Nishimura , Harunori Hirao
发明人： Kenji Sanada , Yukihiro Matsumoto , Takeshi Nishimura , Harunori Hirao
IPC分类号： C07C51/16
CPC分类号： B01J19/002 , B01J8/0453 , B01J8/0492 , B01J23/8885 , B01J2208/00132 , B01J2219/00006 , B01J2219/00164 , B01J2219/00198 , B01J2219/002 , B01J2219/00216 , B01J2219/0022 , B01J2219/00225 , B01J2219/00268 , C07C51/252 , C07C57/04
摘要： A method for managing the operation of an apparatus for the reaction of gas phase partial oxidation of an unsaturated hydrocarbon with a molecular oxygen-containing gas for the purpose of omitting wasteful emergency stop of the operation and ensuring execution of necessary emergency measure and a method for producing (meth) acrylic acid by utilizing the method mentioned above are provided. The operation of the apparatus is brought to emergency stop exclusively when thee values of concentrations of various gases obtained by calculation from the flow rates of the gases being introduced at the inlet port of the reactor and the measured values obtained by analysis with gas analyzing instruments both deviate from the ranges of the present values.
摘要翻译：用于管理不饱和烃与分子氧气体的气相部分氧化反应装置的操作的方法，以省略浪费的紧急停止操作并确保执行必要的应急措施和方法提供了通过利用上述方法生产（甲基）丙烯酸的方法。仅当通过计算得到的各种气体的浓度从在反应器的入口处引入的气体的流量和通过气体分析仪器的分析得到的测量值的值达到紧急停止时，设备的操作才被紧急停止偏离当前值的范围。

35. 发明授权

US06878239B1 Process for inhibiting a polymerization in a vacuum section of an easily polymerizable compound purification system 有权
标题翻译：在容易聚合的化合物净化系统的真空部分中抑制聚合的方法
公开(公告)号：US06878239B1
公开(公告)日：2005-04-12
申请号：US09587387
申请日：2000-06-05
申请人： Yukihiro Matsumoto , Takeshi Nishimura
发明人： Yukihiro Matsumoto , Takeshi Nishimura
IPC分类号： B01D3/00 , C07B61/00 , C07B63/00 , C07B63/04 , C07C51/50 , C07C57/07 , C07C57/075 , C07C67/62 , C07C69/54 , C08F2/38 , B01D3/10 , B01D3/34 , C07C57/025
CPC分类号： C07B63/04 , C07C67/62 , Y10S203/11 , Y10S203/16 , Y10S203/22 , C07C69/54
摘要： A process for inhibiting a polymerization of an easily polymerizable compound purification system is disclosed.According to the present invention, the polymerization of the easily polymerizable compound such as (meth)acrylic acid and (meth)acrylate flowed into a vacuum section can be inhibited by contacting a liquid containing a polymerization inhibitor with the compound directly in the vacuum section.When the vacuum section includes a gas and liquid contact chamber (usually a condenser), the liquid containing a polymerization inhibitor may be supplied to the chamber. When the vacuum section includes a liquid ejector and/or a nash pump as a vacuuming device, the liquid containing a polymerization inhibitor may be circulated by the liquid ejector and/or the nash pump for reducing a pressure of a purifying section. Examples of easily polymerizable compounds are (meth)acrylic acid and (meth)acrylates. The process of the invention is capable of inhibiting the polymerization of the easily polymerizable compound such as (meth)acrylic acid and (meth)acrylate in a vacuum section of a purifying system. The system of the invention is suitable for purifying the easily polymerizable compound.
摘要翻译：公开了抑制容易聚合的化合物净化系统的聚合的方法。根据本发明，可以抑制流入真空部分的（甲基）丙烯酸和（甲基）丙烯酸酯等易聚合性化合物的聚合，将含有聚合抑制剂的液体直接与真空部分接触。当真空部分包括气体和液体接触室（通常为冷凝器）时，可以将含有阻聚剂的液体供应到室中。当真空部分包括作为抽真空装置的液体喷射器和/或纳什泵时，含有聚合抑制剂的液体可以通过液体喷射器和/或纳什泵循环，以降低净化部分的压力。易聚合性化合物的实例是（甲基）丙烯酸和（甲基）丙烯酸酯。本发明的方法能够在纯化系统的真空部分中抑制易聚合化合物如（甲基）丙烯酸和（甲基）丙烯酸酯的聚合。本发明的系统适用于纯化容易聚合的化合物。

36. 发明授权

US06713648B2 Method for absorbing acrylic acid and method for purifying acrylic acid 有权
标题翻译：丙烯酸的吸收方法和丙烯酸的净化方法
公开(公告)号：US06713648B2
公开(公告)日：2004-03-30
申请号：US09780787
申请日：2001-02-09
申请人： Harunori Hirao , Yoshitake Ishii , Yukihiro Matsumoto , Takeshi Nishimura
发明人： Harunori Hirao , Yoshitake Ishii , Yukihiro Matsumoto , Takeshi Nishimura
IPC分类号： C07C5142
CPC分类号： C07C51/44 , B01D3/225 , C07C51/48 , C07C57/04
摘要： This invention concerns a method for absorbing acrylic acid, characterized by supplying an acrylic acid-containing reaction gas component obtained by the reaction of catalytic gas phase oxidation to an acrylic acid absorption column and advancing a high boiling inert hydrophobic organic liquid into counter-flow contact with said reaction gas in said acrylic acid absorption column with the mass flow rate of the organic liquid fixed in the range of 0.2-4.5 times the mass flow rate of the acrylic acid in the reaction gas thereby absorbing acrylic acid in said organic liquid and obtaining an acrylic acid-containing solution and a method for purifying acrylic acid, comprising a step for purifying the acrylic acid-containing organic liquid obtained by the step mentioned above. By this invention, a product of acrylic acid containing a low boiling substance at a low concentration can be produced.
摘要翻译：本发明涉及一种吸收丙烯酸的方法，其特征在于将通过催化气相氧化反应获得的含丙烯酸的反应气体组分供给丙烯酸吸收塔，并将高沸点惰性疏水性有机液体推入逆流接触所述丙烯酸吸收塔中的所述反应气体的有机液体的质量流量固定在反应气体中丙烯酸的质量流量的0.2-4.5倍的范围内，从而吸收所述有机液体中的丙烯酸，并获得含丙烯酸的溶液和丙烯酸的精制方法，其特征在于，含有通过上述工序得到的含丙烯酸的有机液的纯化工序。通过本发明，可以制备含有低浓度低沸点物质的丙烯酸的产物。

37. 发明授权

US06677482B2 Method of manufacturing (meth) acrylic acid 有权
标题翻译：制造（甲基）丙烯酸的方法
公开(公告)号：US06677482B2
公开(公告)日：2004-01-13
申请号：US10326189
申请日：2002-12-20
申请人： Takeshi Nishimura , Yukihiro Matsumoto
发明人： Takeshi Nishimura , Yukihiro Matsumoto
IPC分类号： C07C5142
CPC分类号： C07C51/252 , B01D3/009 , B01D3/143 , B01D53/1487 , B01J2219/00006 , C07C51/44 , Y02P20/127 , C07C57/04
摘要： A method of manufacturing (meth)acrylic acid includes: a reaction step of carrying out a catalytic gas-phase oxidation reaction; an absorbing step of absorbing (meth)acrylic acid from a (meth)acrylic-acid-containing mixed gas prepared in the reaction step; a refinement step of separating, refining, and recovering (meth)acrylic acid from a (meth)acrylic-acid-containing liquid prepared in the absorbing step; and a recirculation step of recirculating (meth)acrylic acid contained in a vent gas produced in the refinement step to the absorbing step and/or the refinement step.
摘要翻译：制备（甲基）丙烯酸的方法包括：进行催化气相氧化反应的反应步骤;从（甲基）丙烯酸混合气体中吸收（甲基）丙烯酸的吸收步骤反应步骤;从在吸收步骤中制备的（甲基）丙烯酸的液体中分离，精制和回收（甲基）丙烯酸的精制步骤; 以及将在精炼步骤中产生的排气中包含的（甲基）丙烯酸再循环到吸收步骤和/或精制步骤的再循环步骤。

38. 发明授权

US06666956B1 Method for distilling polymerizable compound or liquid containing polymerizable compound 有权
标题翻译：蒸馏可聚合化合物或含有可聚合化合物的液体的方法
公开(公告)号：US06666956B1
公开(公告)日：2003-12-23
申请号：US09506715
申请日：2000-02-18
申请人： Takeshi Nishimura , Yukihiro Matsumoto
发明人： Takeshi Nishimura , Yukihiro Matsumoto
IPC分类号： B01D332
CPC分类号： B01D3/322 , C07C51/44 , Y10S203/11 , Y10S203/22 , C07C57/04
摘要： In distillation of a polymerizable compound such as (meth)acrylic acid or a liquid containing such a polymerizable compound with use of a distillation column equipped with a reboiler, (a) a vertical multi-tube reboiler whose outlet nozzle inside diameter (D1) is 0.2 to 1 time its reboiler shell inside diameter (D2) is used as the reboiler, (b) an outlet of an outlet nozzle of the reboiler to a gas-phase section of the distillation column is provided at a position such that a distance L from the top tubesheet of the reboiler to the lower end of the outlet of the outlet nozzle satisfies L=(0.4 to 3)×D1, and (c) a liquid level in the distillation column is maintained in a range such that a height H of the liquid level from the top tubesheet of the reboiler satisfies H=(0.1 to 0.8)×L.
摘要翻译：在使用装备有再沸器的蒸馏塔的可聚合化合物如（甲基）丙烯酸或含有这种聚合性化合物的液体的蒸馏中，（a）出口喷嘴内径（D1）的垂直多管再沸器将其再沸器壳体内径（D2）的0.2至1次用作再沸器，（b）在蒸馏塔的气相部分的出口喷嘴的出口设置在距离L 从再沸器的顶部管板到出口喷嘴的出口的下端满足L =（0.4〜3）×D 1，（c）蒸馏塔中的液面保持在高度H 来自再沸器的顶部管板的液面满足H =（0.1〜0.8）×L。

39. 发明授权

US06651731B2 Method for cooling heating grade heat exchanger in unsteady state 有权
公开(公告)号：US06651731B2
公开(公告)日：2003-11-25
申请号：US10062239
申请日：2002-02-01
申请人： Takeshi Nishimura , Yukihiro Matsumoto , Sei Nakahara , Motomi Nakamura
发明人： Takeshi Nishimura , Yukihiro Matsumoto , Sei Nakahara , Motomi Nakamura
IPC分类号： F25B2900
CPC分类号： F28D7/0066 , B01D3/322 , B01J19/0013 , B01J19/18 , B01J2219/00063 , B01J2219/00069 , B01J2219/00094 , B01J2219/00164 , B01J2219/002 , B01J2219/00213 , B01J2219/00238
摘要： For a heat exchanger using a heating medium for the purpose of heating a fluid to be handled during a steady state, this invention provides a method for using relevant devices which enables the heat exchanger to be operated safely and infallibly without suffering the raw material or the reaction product to polymerize in the reactor or the pipes during an unsteady state, suffering the reactor or the pipes to sustain a fracture owing to a rise in the internal pressure of the vessel, and suffering the apparatus for production to sustain serious damage. This invention pertains, mainly in a heat exchanger admitting a heating medium and using it for the purpose of heating a fluid to be handled, to a method for using relevant devices during the unsteady state, characterized by introducing a cooling medium in the place of the heating medium mentioned above.

40. 发明授权

US06407287B2 Method for production of acrylic acid 失效
标题翻译：丙烯酸生产方法
公开(公告)号：US06407287B2
公开(公告)日：2002-06-18
申请号：US09800705
申请日：2001-03-07
申请人： Yukihiro Matsumoto , Takeshi Nishimura , Kazuhiko Sakamoto , Hidefumi Haramaki
发明人： Yukihiro Matsumoto , Takeshi Nishimura , Kazuhiko Sakamoto , Hidefumi Haramaki
IPC分类号： C07C5116
CPC分类号： C07C51/252 , C07C51/46 , C07C57/04
摘要： In a method for producing acrylic acid by the steps of a reaction of catalytic gas phase oxidation, absorbing the acrylic acid with an absorbent, and dehydrating the acrylic acid-containing aqueous solution, the method is characterized that the step of dehydration comprises adding and an azeotropic solvent, distilling the resultant mixture, and adjusting the acrylic acid concentration at the top of the column in the range of 0.06-0.80 wt. %, thereby preventing the bottoms of the azeotropic dehydration column from substantially containing the azeotropic solvent and water. As results, the acrylic acid is kept from forming a polymer in any of the distillation columns involved in the production, and effective utilization of acrylic acid.
摘要翻译：在通过催化气相氧化反应，吸收丙烯酸和吸收剂的步骤和使含丙烯酸水溶液脱水的步骤来制备丙烯酸的方法中，脱水步骤包括加入和共沸溶剂，蒸馏得到的混合物，并调节柱顶部的丙烯酸浓度为0.06-0.80wt。％，从而防止共沸脱水塔的底部基本上含有共沸溶剂和水。结果，丙烯酸在生产中涉及的任何蒸馏塔中都不会形成聚合物，有效利用丙烯酸。

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