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1. 发明授权

US06960670B2 Method for production of maleic anhydride 失效
标题翻译：马来酸酐生产方法
公开(公告)号：US06960670B2
公开(公告)日：2005-11-01
申请号：US10174669
申请日：2002-06-19
申请人： Tadayoshi Kawashima , Yoshitake Ishii , Kei Hamamoto , Souichi Yamada , Tetsuya Kajihara
发明人： Tadayoshi Kawashima , Yoshitake Ishii , Kei Hamamoto , Souichi Yamada , Tetsuya Kajihara
IPC分类号： C07C51/46 , C07C51/56 , C07D307/60
CPC分类号： C07C51/46 , C07C51/56 , C07C57/145
摘要： This invention discloses a method for producing maleic anhydride comprising an azeotropic distillation step to dehydrate a crude maleic acid-containing aqueous solution, which method is characterized by as an azeotropic solvent (1) using an organic solvent exhibiting a maximum dissolving concentration of the organic solvent in water in the range of 0.1-5% by weight at a temperature of 20° C. According to this invention, it is made possible to prevent the occurrence of a blocking substance, allow a continuous operation for a long time, and remove by-produced acid components by a process of distillation for azeotropic dehydration.
摘要翻译：本发明公开了一种马来酸酐的制造方法，其特征在于，使用含有所述有机溶剂的最大溶解浓度的有机溶剂作为共沸溶剂（1）进行脱水的共沸蒸馏工序，在20℃的温度范围为0.1-5重量％的水中。根据本发明，可以防止发生阻塞物质，长时间连续操作，并且通过通过蒸馏共沸脱水方法生产的酸组分。

2. 发明授权

US08680330B2 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：US08680330B2
公开(公告)日：2014-03-25
申请号：US13147643
申请日：2010-01-29
申请人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Takashi Sugimoto , Masatsugu Kitaura , Satoshi Nakagawa , Kunihiko Suzuki
发明人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Takashi Sugimoto , Masatsugu Kitaura , Satoshi Nakagawa , Kunihiko Suzuki
IPC分类号： C07C51/42
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for producing (meth)acrylic acid of the present invention comprises the steps in the following order: a crystallization step of supplying a cooling medium cooled by a heat source device to a crystallizer to obtain a (meth)acrylic acid crystal from a crude (meth)acrylic acid solution; an adjustment step of returning the cooling medium discharged from the crystallizer to the crystallizer without cooling; a sweating step of supplying a heating medium to the crystallizer to partially melt the (meth)acrylic acid crystal, thereby obtaining a melted liquid, and discharging the melted liquid from the crystallizer; and a melting step of supplying the heating medium to the crystallizer to melt the (meth)acrylic acid crystal, thereby obtaining purified (meth)acrylic acid. According to the present invention, purified (meth)acrylic acid with high purity can be obtained.
摘要翻译：制备本发明的（甲基）丙烯酸的方法包括以下顺序的步骤：将由热源装置冷却的冷却介质供给结晶器的结晶步骤，从粗制得到（甲基）丙烯酸晶体（甲基）丙烯酸溶液; 将结晶器排出的冷却介质返回到结晶器而不冷却的调整步骤; 向所述结晶器供给加热介质以部分熔融所述（甲基）丙烯酸晶体，从而获得熔融液体并从所述结晶器排出熔融液体的出汗步骤; 以及将加热介质供给结晶器以熔融（甲基）丙烯酸晶体，从而获得纯化的（甲基）丙烯酸的熔融步骤。根据本发明，可以得到高纯度的（甲基）丙烯酸。

3. 发明申请

US20120108847A1 DEVICE AND PROCESS FOR CRYSTALLIZING (METH) ACRYLIC ACID 有权
标题翻译：用于结晶（甲基）丙烯酸的装置和方法
公开(公告)号：US20120108847A1
公开(公告)日：2012-05-03
申请号：US13381449
申请日：2010-06-24
申请人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Masatsugu Kitaura
发明人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Masatsugu Kitaura
IPC分类号： C07C51/43 , B01J19/00
CPC分类号： B01D9/0013 , B01D9/0063 , C07C51/43 , C07C57/04
摘要： The objective of the present invention is to provide a crystallization device and a crystallization process for obtaining (meth)acrylic acid with higher purity without causing leakage of a crude solution by preventing complete clogging in a crystallization tube from occurring. The device for crystallizing (meth)acrylic acid according to the present invention is characterized in comprising a crude (meth)acrylic acid solution supply part, a crystallization tube, a heat medium supply tube, a heat medium discharge tube, a storage part of a crude (meth)acrylic acid solution passed through the crystallization tube, a tube for circulating and supplying the crude (meth)acrylic acid solution to the supply part from the storage part, and a pump for circulating and supplying the crude (meth)acrylic acid solution to the supply part from the storage part; and further comprising a pressure meter in the circulate-supply tube; wherein the device is used for carrying out dynamic crystallization in a batch manner by circulating the crude (meth)acrylic acid solution to flow the crude solution downward along the inner wall of the crystallization tube in a coating film-like state.
摘要翻译：本发明的目的是提供一种结晶装置和结晶方法，用于通过防止结晶管中发生完全堵塞而获得更高纯度的（甲基）丙烯酸，而不会导致粗溶液泄漏。根据本发明的用于结晶（甲基）丙烯酸的装置的特征在于包含粗（甲基）丙烯酸溶液供应部分，结晶管，热介质供给管，热介质放电管，粗（甲基）丙烯酸溶液通过结晶管，将来自储存部分的粗（甲基）丙烯酸溶液循环供给到供应部分的管和用于循环供给粗（甲基）丙烯酸从储存部分解决供应部件; 并且还包括在所述循环供应管中的压力计; 其中所述装置用于通过循环粗制（甲基）丙烯酸溶液以使涂层膜状状态沿着结晶管的内壁向下流动的方式以间歇方式进行动态结晶。

4. 发明申请

US20110319661A1 PROCESS FOR PRODUCING (METH) ACRYLIC ACID 有权
标题翻译：生产（甲基）丙烯酸的方法
公开(公告)号：US20110319661A1
公开(公告)日：2011-12-29
申请号：US13147643
申请日：2010-01-29
申请人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Takashi Sugimoto , Masatsugu Kitaura , Satoshi Nakagawa , Kunihiko Suzuki
发明人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Takashi Sugimoto , Masatsugu Kitaura , Satoshi Nakagawa , Kunihiko Suzuki
IPC分类号： C07C51/43
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for producing (meth)acrylic acid of the present invention comprises the steps in the following order: a crystallization step of supplying a cooling medium cooled by a heat source device to a crystallizer to obtain a (meth)acrylic acid crystal from a crude (meth)acrylic acid solution; an adjustment step of returning the cooling medium discharged from the crystallizer to the crystallizer without cooling; a sweating step of supplying a heating medium to the crystallizer to partially melt the (meth)acrylic acid crystal, thereby obtaining a melted liquid, and discharging the melted liquid from the crystallizer; and a melting step of supplying the heating medium to the crystallizer to melt the (meth)acrylic acid crystal, thereby obtaining purified (meth)acrylic acid. According to the present invention, purified (meth)acrylic acid with high purity can be obtained.
摘要翻译：制备本发明的（甲基）丙烯酸的方法包括以下顺序的步骤：将由热源装置冷却的冷却介质供给结晶器的结晶步骤，从粗制得到（甲基）丙烯酸晶体（甲基）丙烯酸溶液; 将结晶器排出的冷却介质返回结晶器而不冷却的调整步骤; 向所述结晶器供给加热介质以部分熔融所述（甲基）丙烯酸晶体，从而获得熔融液体并从所述结晶器排出熔融液体的出汗步骤; 以及将加热介质供给结晶器以熔融（甲基）丙烯酸晶体，从而获得纯化的（甲基）丙烯酸的熔融步骤。根据本发明，可以得到高纯度的（甲基）丙烯酸。

5. 发明授权

US08704000B2 Method for crystallizing (meth)acrylic acid and method for regulating content of polymerization inhibitor in product (meth)acrylic acid 有权
标题翻译：（甲基）丙烯酸结晶方法及其制备（甲基）丙烯酸中阻聚剂含量的方法
公开(公告)号：US08704000B2
公开(公告)日：2014-04-22
申请号：US13322633
申请日：2010-05-27
申请人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Harunori Hirao , Satoshi Nakagawa
发明人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Harunori Hirao , Satoshi Nakagawa
IPC分类号： C07C51/43 , C07C51/50
CPC分类号： C07C51/43 , C07C57/04
摘要： PROBLEMThere is provided a melting method of (meth)acrylic acid crystal which is capable of providing a higher quality of (meth)acrylic acid without carrying out an additional purification treatment to (meth)acrylic acid obtained by a crystallization operation accompanied by melting of (meth)acrylic acid. In addition, there is provided a simple method for adjusting a content of polymerization inhibitor in a product (meth)acrylic acid.SOLUTIONIn the crystallization method melting (meth)acrylic acid crystal while wetting with the crystalline molten liquid, a polymerization inhibitor is added to a molten liquid melted after initiation of melting, and all of crystal is melted while circulating and feeding the molten liquid containing said polymerization inhibitor to the crystal. In addition, a content of polymerization inhibitor in product (meth)acrylic acid is adjusted by adding a predetermined amount of polymerization inhibitor corresponding to a product specification to the molten liquid melted after initiation of melting.
摘要翻译：问题提供了（甲基）丙烯酸晶体的熔融方法，其能够提供更高质量的（甲基）丙烯酸，而不对通过伴随熔化的结晶操作获得的（甲基）丙烯酸进行额外的纯化处理（甲基）丙烯酸。此外，提供了调节产物（甲基）丙烯酸中阻聚剂含量的简单方法。解决方案在熔融（甲基）丙烯酸晶体的结晶方法中，与结晶熔融液体一起润湿的同时，在熔融开始后熔化的熔融液中加入聚合抑制剂，并且在循环并将含有阻聚剂结晶。此外，通过向熔融开始熔融的熔融液中加入与产品规格相对应的规定量的聚合抑制剂来调节产品（甲基）丙烯酸中的聚合抑制剂的含量。

6. 发明申请

US20120083624A1 PROCESS FOR PRODUCTION OF (METH)ACRYLIC ACID 有权
标题翻译：（甲基）丙烯酸生产方法
公开(公告)号：US20120083624A1
公开(公告)日：2012-04-05
申请号：US13377273
申请日：2010-06-24
申请人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Nakagawa Satoshi
发明人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Nakagawa Satoshi
IPC分类号： C07C51/43
CPC分类号： B01D9/0013 , B01D9/004 , C07C51/43 , C07C57/04
摘要： The objective of the present invention is to provide a process for production of (meth)acrylic acid with improved production efficiency by efficiently shifting from heating procedure to cooling procedure for a crystallizer. A process for production of (meth)acrylic acid according to the present invention is characterized in comprising the steps of crystallizing (meth)acrylic acid from a crude (meth)acrylic acid solution by using a batch type crystallizer, and melting the obtained (meth)acrylic acid crystal to obtain a (meth)acrylic acid melted liquid; wherein preliminary cooling of the crystallizer for the next crystallization step is started during transferring the (meth)acrylic acid melted liquid from the crystallizer.
摘要翻译：本发明的目的是提供一种生产效率高的（甲基）丙烯酸的方法，其有效地从加热步骤转移到结晶器的冷却过程。本发明的（甲基）丙烯酸的制造方法的特征在于，通过使用间歇式结晶器，使粗（甲基）丙烯酸溶液结晶（甲基）丙烯酸，并使所得到的（甲基））丙烯酸晶体得到（甲基）丙烯酸熔融液体; 其中在从结晶器转移（甲基）丙烯酸熔融液体的过程中开始下一结晶步骤的结晶器的预冷。

7. 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。

8. 发明申请

US20120108857A1 CRYSTALLIZATION UNIT FOR ACRYLIC ACID AND METHOD FOR CRYSTALLIZATION OF ACRYLIC ACID USING THE SAME 有权
标题翻译：用于丙烯酸的结晶单元和使用该丙烯酸的丙烯酸的结晶方法
公开(公告)号：US20120108857A1
公开(公告)日：2012-05-03
申请号：US13322967
申请日：2010-06-24
申请人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Masatsugu Kitaura
发明人： Kazuhiko Sakamoto , Koji Ueno , Yoshitake Ishii , Masatsugu Kitaura
IPC分类号： C07C29/78 , B01D9/02
CPC分类号： B01D9/0013 , B01D9/004 , B01D9/0045 , C07C51/43 , C07C57/04
摘要： PROBLEMAn object of the present invention is to provide a crystallization unit capable of producing a purified acrylic acid having high purity efficiently.SOLUTIONThe present invention provides a crystallization unit to separate an acrylic acid-containing solution into a mother liquid and a purified acrylic acid, wherein the crystallization unit comprises a crystallizer having an exit to take out the mother liquid and the purified acrylic acid alternately; a supply line to supply the acrylic acid-containing solution to the crystallizer; and a recovery line to recover the mother liquid and the purified acrylic acid alternately from the crystallizer which is connected to the exit, and wherein the recovery line is equipped with an opening and closing unit consisting of a ball valve or a gate valve.
摘要翻译：发明内容本发明的目的是提供一种能够有效地制备纯度高的纯化丙烯酸的结晶单元。解决方案本发明提供一种结晶单元，用于将含丙烯酸的溶液分离成母液和纯化丙烯酸，其中结晶单元包括具有出口以交替地取出母液和纯化丙烯酸的结晶器; 用于向结晶器供应含丙烯酸的溶液的供应管线; 以及从与出口连接的结晶器交替地回收母液和纯化丙烯酸的回收管线，其中回收管线配备有由球阀或闸阀构成的开闭单元。

9. 发明申请

US20120046495A1 PROCESS FOR PRODUCTION OF (METH) ACRYLIC ACID 有权
标题翻译：（甲基）丙烯酸生产方法
公开(公告)号：US20120046495A1
公开(公告)日：2012-02-23
申请号：US13266672
申请日：2010-05-07
申请人： Yoshitake Ishii , Koji Ueno
发明人： Yoshitake Ishii , Koji Ueno
IPC分类号： C07C51/43
CPC分类号： B01D9/0013 , C07C51/43 , C07C57/04
摘要： The objective of the present invention is to provide a process for producing highly pure (meth) acrylic acid stably and efficiently with crystallization. The process for production of (meth)acrylic acid according to the present invention is characterized in comprising the steps of cooling a crude (meth)acrylic acid solution in a crystallization apparatus until the temperature of a cooling medium discharged from the crystallization apparatus is stabilized in the range of higher than the solidification point of the crude (meth)acrylic acid solution in the crystallization apparatus and not more than the solidification point plus 5° C.; then bringing the crude (meth)acrylic acid solution in the crystallization apparatus to a supercooled condition by setting the temperature of a cooling medium supplied to the crystallization apparatus at the temperature of not more than the solidification point of the crude (meth)acrylic acid solution minus 1° C.; and crystallizing (meth)acrylic acid from the crude (meth)acrylic acid solution.
摘要翻译：本发明的目的是提供一种通过结晶稳定且有效地生产高纯度（甲基）丙烯酸的方法。根据本发明的（甲基）丙烯酸的制备方法的特征在于包括以下步骤：在结晶装置中冷却粗（甲基）丙烯酸溶液，直到从结晶装置排出的冷却介质的温度稳定高于结晶装置中粗（甲基）丙烯酸溶液的凝固点的范围，不超过凝固点加5℃的范围。然后通过将供给结晶装置的冷却介质的温度设定为不高于粗（甲基）丙烯酸溶液的凝固点的温度，将粗（甲基）丙烯酸溶液在结晶装置中进行过冷却零下1摄氏度。和从（甲基）丙烯酸粗溶液中结晶（甲基）丙烯酸。

10. 发明授权

US6149197A Structure of front body of automobiles 失效
标题翻译：汽车前身结构
公开(公告)号：US6149197A
公开(公告)日：2000-11-21
申请号：US89020
申请日：1998-06-02
申请人： Yoshitake Ishii , Mitsuru Yuda
发明人： Yoshitake Ishii , Mitsuru Yuda
IPC分类号： B60G7/02 , B60G21/055 , B62D21/11
CPC分类号： B60G21/0551 , B60G7/02 , B62D21/11 , B60G2200/44 , B60G2204/1222 , B60G2204/143 , B60G2204/15 , B60G2206/60 , B60G2206/602 , B60G2206/604 , B60G2206/8102 , B60G2206/8208
摘要： Provided is a structure of a front body of an automobile comprising a steering system which can prevent a steering gear case from coming in contact with a road surface during running on a bad road or the like even if an under cover is not provided, and which can reduce costs, weight and size, and can provide proper (small) changes in the toe angle and the driver with a smooth sense of steering. In the front body of an automobile in which the suspension arm (lower control arm) and the steering gear case (pinion case) are attached to the suspension frame and at least a part of the steering gear case (for example, a pinion case) is placed below the suspension frame, a downward protrusion which protrudes downward and has a face slanted downward toward the rear portion of the automobile body is provided on the bottom portion of the suspension frame.
摘要翻译：本发明提供一种汽车前身体的结构，即使在没有设置下盖的情况下，也可以在不良道路等行驶时能够防止舵机壳体与路面接触而转向系统的结构，可以降低成本，重量和尺寸，并且可以以平滑的转向感来提供脚趾角度和驾驶员的适当（小）变化。在其中悬架臂（下控制臂）和舵机壳（小齿轮壳））附接到悬架和汽轮机的至少一部分（例如，小齿轮壳）的汽车的前体中，设置在悬挂框架的下方，在悬挂框架的底部设置有向下突出并向下朝向汽车车身后部倾斜的向下突出部。

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