公开(公告)号：US06581637B2

公开(公告)日：2003-06-24

申请号：US09788597

申请日：2001-02-21

申请人： Kei Hamamoto ,  Takeshi Nishimura ,  Kazuhiko Sakamoto ,  Osamu Dodo

发明人： Kei Hamamoto ,  Takeshi Nishimura ,  Kazuhiko Sakamoto ,  Osamu Dodo

IPC分类号： F17D114

CPC分类号： F17D1/14 ,  Y10T137/85954 ,  Y10T137/86348 ,  Y10T137/86372

摘要： According to the present invention, a tank for storing an easily polymerizable compound, the tank fitted with a liquid inlet pipe 3, a liquid draw-off pipe 4 and a liquid recirculating pipe 5, is characterized in that, assuming terminal ends of the individual pipes 3-5 are located at the same height, the apex angle formed by a line joining the central points of the end openings of the pipe 3 and the pipe 4 at the central point of a horizontal cross section of the tank, or the apex angle formed by a line joining the central points of the pipe 5 and the pipe 4 at the central point of the horizontal cross section of the tank, is equal to or larger than 90°. A method of storing an easily polymerizable compound of the invention utilizes the aforementioned tank for storing the polymerizable compound.

摘要翻译： 根据本发明，用于储存容易聚合的化合物的罐，装有液体入口管3的罐，液体排出管4和液体再循环管5，其特征在于，假定个体的末端 管3-5位于相同的高度处，由在管3的端部开口的中心点和管4的水平横截面的中心点处连接的线形成的顶角，或顶点 通过连接管5的中心点和罐4的水平截面中心点处的管4形成的角度等于或大于90°。 存储本发明的易聚合性化合物的方法利用上述储存可聚合化合物的罐。

公开(公告)号：US06613196B2

公开(公告)日：2003-09-02

申请号：US09901267

申请日：2001-07-09

申请人： Kei Hamamoto ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Misao Inada

发明人： Kei Hamamoto ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Misao Inada

IPC分类号： B01D342

CPC分类号： B01D3/343 ,  B01D3/14 ,  C07C51/44 ,  Y10S203/07 ,  Y10S203/22 ,  C07C57/04

摘要： A method for stopping a purifying column handling an easily polymerizing compound-containing solution is disclosed, which method is characterized by lowering the inner oxygen concentration of the column below the limit of oxygen concentration by supplying an inert gas to the column while the concentration of the gas of easily polymerizing compound is in the range of 100% to the lower limit of the flammable range in volume % of the purifying column or by further supplying a reflux liquid thereby cooling the interior of the column at a rate in the range of 0.01-10° C./min. This invention enjoys exceptionally high economic value in respect that it is capable of preventing the easily polymerizing compound from the occurrence of polymerization in the purifying column, precluding the interior of the purifying column from being clogged by adhesion of a polymer, and moreover avoiding the possibility of explosion.

公开(公告)号：US06495045B2

公开(公告)日：2002-12-17

申请号：US09880395

申请日：2001-06-13

申请人： Kei Hamamoto ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Naoto Kasaya ,  Masakatsu Mori

发明人： Kei Hamamoto ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Naoto Kasaya ,  Masakatsu Mori

IPC分类号： B01D1100

CPC分类号： C07C51/42 ,  C07C51/44 ,  C07C57/04

摘要： A solid substance removing device comprising a body provided with a fluid inlet pipe and a fluid outlet pipe and a filtering part disposed between the fluid inlet pipe and the fluid outlet pipe inside said body, the filtering part having (a) a thickness in the range of 5-500 mm, (b) a percentage of voids in the range of 60-99.5 vol. %, and (c) a contact surface area in the range of 100-2000 m2/m3. Owing to the construction described above, it is made possible to facilitate removal of the solid substance and, at the same time, prevent new generation of a polymer during the production of an easily polymerizing substance.

摘要翻译： 一种固体物质去除装置，包括设置有流体入口管和流体出口管的主体和设置在所述体内的流体入口管和流体出口管之间的过滤部分，所述过滤部具有（a） 为5-500毫米，（b）空隙百分比在60-99.5体积范围内。 ％，（c）100-2000m2 / m3范围内的接触表面积。 由于上述结构，可以方便地去除固体物质，同时防止在制备易聚合物质期间新一代聚合物。

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。

公开(公告)号：US06899452B2

公开(公告)日：2005-05-31

申请号：US10246361

申请日：2002-09-18

申请人： Kei Hamamoto ,  Takeshi Nishimura ,  Kazuhiko Sakamoto ,  Kunihiko Suzuki

发明人： Kei Hamamoto ,  Takeshi Nishimura ,  Kazuhiko Sakamoto ,  Kunihiko Suzuki

IPC分类号： B01F3/12 ,  B01F3/08 ,  B01F15/00 ,  B01F15/02 ,  B01F15/04 ,  B01J8/00 ,  B01J8/20 ,  B01J19/00 ,  B01J19/18 ,  C08F2/42

CPC分类号： B01J8/20 ,  B01F3/088 ,  B01F15/00123 ,  B01J8/0045 ,  B01J19/002 ,  B01J19/0066 ,  B01J19/18 ,  B01J2219/00182 ,  B01J2219/00272

摘要： An apparatus for the preparation and supply of a polymerization inhibitor which constantly effects stable supply of a polymerization inhibitor solution adjusted to a prescribed concentration and enables a compound handled at the next step to be prevented from polymerization is provided. The apparatus for the preparation and supply of a polymerization inhibitor has at least two tanks and a stirring device, a liquid level detector, a polymerization inhibitor input port, a concentration-adjusting liquid input port, and a polymerization inhibitor solution feed opening, each being installed in at least one of said tanks.

摘要翻译： 提供了一种制备和供应聚合抑制剂的装置，其提供了恒定地稳定地供应调节到规定浓度的聚合抑制剂溶液并使下一步骤处理的化合物能够防止聚合。 用于制备和供应阻聚剂的装置具有至少两个罐和搅拌装置，液位检测器，阻聚剂输入端口，浓度调节液体输入端口和阻聚剂溶液进料口，各自为 安装在至少一个所述罐中。

公开(公告)号：US06676808B2

公开(公告)日：2004-01-13

申请号：US09871213

申请日：2001-05-31

申请人： Kei Hamamoto ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Misao Inada

发明人： Kei Hamamoto ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Misao Inada

IPC分类号： B01D334

CPC分类号： C07C51/46 ,  B01D3/322 ,  B01D3/4227 ,  C07C51/50 ,  Y10S203/07 ,  Y10S203/22 ,  C07C57/04

摘要： A method for starting up a distilling column destined to handle an easily polymerizing compound-containing solution characterized by supplying at the start of the operation of the distilling column a polymerization inhibitor to the bottom liquid of the distilling column having a temperature of not higher than 80° C. Further, by supplying a reflux liquid through the top of the distilling column or the middle stage of the column prior to the start of the temperature elevation of the distilling column, thereby preventing the polymerization of the easily polymerizing compound more effectively.

摘要翻译： 一种用于启动用于处理容易聚合的含化合物的溶液的蒸馏塔的方法，其特征在于，在蒸馏塔开始操作时将聚合抑制剂供入具有不高于80℃的蒸馏塔的底部液体 ℃。此外，在蒸馏塔开始升温之前，通过在蒸馏塔的顶部或塔的中间阶段供应回流液体，从而更有效地防止了容易聚合的化合物的聚合。