公开(公告)号：US06441228B2

公开(公告)日：2002-08-27

申请号：US09735091

申请日：2000-12-12

申请人： Sei Nakahara ,  Kazuhiko Sakamoto ,  Yukihiro Matsumoto ,  Kenji Sanada ,  Masatoshi Ueoka

发明人： Sei Nakahara ,  Kazuhiko Sakamoto ,  Yukihiro Matsumoto ,  Kenji Sanada ,  Masatoshi Ueoka

IPC分类号： C07C5142

CPC分类号： C07C51/252 ,  B01D3/225 ,  B01D3/322 ,  B01J19/02 ,  B01J2219/00101 ,  B01J2219/0277 ,  C07C51/44 ,  Y10S159/15 ,  C07C57/04

摘要： The present invention provides an apparatus for producing (meth)acrylic acid and a process for producing (meth)acrylic acid with this apparatus wherein the apparatus enables to produce (meth)acrylic acid stably for a long period of time by effectively inhibiting the polymerization of (meth)acrylic acid in its production process (for example, in a reboiler). At least a part of the apparatus is made of a nickel-chromium-iron alloy with a molybdenum content of 3 to 20 mass %, but not including 3 mass %, or with a molybdenum content of 1 to 4 mass % and a copper content of 0.5 to 7 mass %.

公开(公告)号：US06966973B2

公开(公告)日：2005-11-22

申请号：US10186569

申请日：2002-07-01

申请人： Sei Nakahara ,  Kazuhiko Sakamoto ,  Yukihiro Matsumoto ,  Kenji Sanada ,  Masatoshi Ueoka

发明人： Sei Nakahara ,  Kazuhiko Sakamoto ,  Yukihiro Matsumoto ,  Kenji Sanada ,  Masatoshi Ueoka

IPC分类号： B01D3/00 ,  B01D3/32 ,  B01J19/02 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C51/44 ,  C07C57/05 ,  C22C38/00 ,  B01V19/00

CPC分类号： C07C51/252 ,  B01D3/225 ,  B01D3/322 ,  B01J19/02 ,  B01J2219/00101 ,  B01J2219/0277 ,  C07C51/44 ,  Y10S159/15 ,  C07C57/04

摘要： The present invention provides an apparatus for producing (meth)acrylic acid and a process for producing (meth)acrylic acid with this apparatus wherein the apparatus enables the production of (meth)acrylic acid stably for a long period of time by effectively inhibiting the polymerization of (meth)acrylic acid in its production process (for example, in a reboiler). At least a part of the apparatus is made of a nickel-chromium-iron alloy with a molybdenum content of 3 to 20 mass %, but not including 3 mass %, or with a molybdenum content of 1 to 4 mass % and a copper content of 0.5 to 7 mass %.

摘要翻译： 本发明提供一种用于生产（甲基）丙烯酸的装置和用于生产（甲基）丙烯酸的方法，该装置能够通过有效地抑制聚合来长时间稳定地生产（甲基）丙烯酸 的（甲基）丙烯酸在其制备方法中（例如，在再沸器中）。 该装置的至少一部分由钼含量为3〜20质量％，但不包括3质量％，或者含有1〜4质量％的钼含量和铜含量的镍 - 铬 - 铁合金 为0.5〜7质量％。

公开(公告)号：US06787001B2

公开(公告)日：2004-09-07

申请号：US10086931

申请日：2002-03-01

申请人： Kazuhiko Sakamoto ,  Sei Nakahara ,  Yukihiro Matsumoto ,  Kenji Sanada ,  Masatoshi Ueoka

发明人： Kazuhiko Sakamoto ,  Sei Nakahara ,  Yukihiro Matsumoto ,  Kenji Sanada ,  Masatoshi Ueoka

IPC分类号： B01D336

CPC分类号： B01D3/36 ,  C07C51/44 ,  Y10S203/09 ,  Y10S203/22 ,  C07C57/04

摘要： A method for distilling a raw material liquid containing (meth)acrylic acid substantially free from azeotropic solvents, collected with a collection agent from a mixed gas obtained by gas phase catalytic oxidation reactions which includes feeding to a distillation column the raw material liquid which temperature is substantially equal to that of the entrance place in the column.

摘要翻译： 一种蒸馏含有基本上不含共沸溶剂的（甲基）丙烯酸的原料液体的方法，该方法包括将由气相催化氧化反应获得的混合气体用收集剂收集，该方法包括向蒸馏塔中加入温度为 基本上等于列中入口处的位置。

公开(公告)号：US06348135B1

公开(公告)日：2002-02-19

申请号：US09521434

申请日：2000-03-08

申请人： Sei Nakahara ,  Yukihiro Matsumoto ,  Masatoshi Ueoka

发明人： Sei Nakahara ,  Yukihiro Matsumoto ,  Masatoshi Ueoka

IPC分类号： B01D334

CPC分类号： C07C51/44 ,  C07C67/54 ,  Y10S203/22 ,  Y10S203/90 ,  C07C57/04 ,  C07C69/54

摘要： In a process for the purification of (meth)acrylic acid and/or its ester using a distillation unit containing a distillation column, a multitubular reboiler and a pipe connecting these elements, an oxygen containing gas is supplied from a least one point in regions between the distillation column and an inlet of the multitubular reboiler and/or in regions between the inlet and an inlet side tube sheet of the multitubular reboiler. This process can effectively prevent the formation of polymerization products and can stably purify (meth)acrylic acid and/or its ester over a long time.

摘要翻译： 在使用含有蒸馏塔，多管再沸器和连接这些元素的管道的蒸馏装置来纯化（甲基）丙烯酸和/或其酯的方法中，含氧气体从至少一个点在 蒸馏塔和多管再沸器的入口和/或在多管再沸器的入口和入口侧管板之间的区域中。 该方法可以有效地防止聚合产物的形成，并且可以长时间稳定地纯化（甲基）丙烯酸和/或其酯。

公开(公告)号：US06848501B2

公开(公告)日：2005-02-01

申请号：US10356428

申请日：2003-01-31

申请人： Harunori Hirao ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Osamu Dodo ,  Tetsuji Mitsumoto ,  Takeshi Nishimura ,  Kazuhiko Sakamoto ,  Hiroo Iwato

发明人： Harunori Hirao ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Osamu Dodo ,  Tetsuji Mitsumoto ,  Takeshi Nishimura ,  Kazuhiko Sakamoto ,  Hiroo Iwato

IPC分类号： B01J19/00 ,  F28D7/16 ,  F28D9/00 ,  F28F19/00 ,  F28F27/02

CPC分类号： F28D9/0068 ,  B01J19/002 ,  B01J2219/00252 ,  F28D7/1607 ,  F28D7/1623 ,  F28D9/0062 ,  F28F9/0278 ,  F28F19/00 ,  F28F2250/102

摘要： In an apparatus provided with a plate type heat exchanger as a heater and/or a cooler and operated to treat a gas containing an easily blocking substance, a method for preventing the plate type heat exchanger from being blocked is disclosed which is characterized by i) setting the width of a flow path on a plate of the plate type heat exchanger in the apparatus in a range of 6-25 mm and ii) setting the average flow rate of the gas passing the plate type heat exchanger in the apparatus per unit cross-sectional area of the flow path on the plate in the range of 3-15 m/s. In the exchange of heat of an easily blocking substance by the use of a plate type heat exchanger, a method for preventing the plate type heat exchanger from blockage is disclosed which has the plate type heat exchanger provided in the port for introducing a gas containing an easily blocking substance with a gas dispersion plate. This invention, in the heat exchange of an effluent gas emanating from a process for the production of (meth)acrylic acid or an ester thereof or the disposal of the gas, significantly allays blockage of the interior of the plate type heat exchanger.

摘要翻译： 在设置有作为加热器和/或冷却器的板式热交换器并且被操作以处理含有易阻塞物质的气体的装置中，公开了一种防止板式热交换器被堵塞的方法，其特征在于i） 将设备中板式热交换器的板上的流路宽度设置在6-25mm的范围内，以及ii）将通过板式热交换器的气体的平均流量设置在每单位十字的装置中 板上流路的截面面积在3-15 m / s的范围内。 在通过使用板式热交换器交换容易堵塞物质的热的情况下，公开了一种防止板式热交换器堵塞的方法，其具有设置在用于引入含有 用气体分散板容易地堵塞物质。 本发明在从（甲基）丙烯酸或其酯的制备方法产生的流出气体的热交换或气体的处理中显着地阻止了板式热交换器的内部堵塞。

公开(公告)号：US07319167B2

公开(公告)日：2008-01-15

申请号：US10840252

申请日：2004-05-07

申请人： Sei Nakahara ,  Kazuhiko Sakamoto ,  Yukihiro Matsumoto

发明人： Sei Nakahara ,  Kazuhiko Sakamoto ,  Yukihiro Matsumoto

IPC分类号： C07C51/42

CPC分类号： C07C51/44 ,  C07C67/54 ,  C07C57/04 ,  C07C69/54

摘要： A method for distilling (meth)acrylic acid and/or the ester thereof by withdrawing vapor generated in a distillation column by distillation from the top of the column, condensing the vapor to give a condensate, and circulating part of the condensate as reflux liquid into the distillation column from the top thereof, comprising the step of adding a polymerization inhibitor to said condensate and said reflux liquid. This method enables maintaining the purity and quality of (meth)acrylic acid and/or the ester thereof at a certain level or higher, suppressing generation of polymers in the rectification column and suppressing polymerization of the condensate obtained by distillation in the incident facilities of the column such as condenser, condensate tank, and the like. In addition, the method enables reduction in the amount of polymerization inhibitor used while suppressing polymerization in the intermediate distillation columns (except the final rectification column).

摘要翻译： 通过从塔顶蒸馏蒸馏蒸馏塔中产生蒸气的蒸馏法蒸馏（甲基）丙烯酸和/或其酯的方法，使蒸汽冷凝得到冷凝物，并将作为回流液体的部分缩合物循环进入 所述蒸馏塔的顶部包括向所述冷凝物和所述回流液中加入阻聚剂的步骤。 该方法能够将（甲基）丙烯酸和/或其酯的纯度和质量保持在一定水平以上，抑制精馏塔中的聚合物的产生，抑制由蒸馏得到的冷凝物的聚合， 柱如冷凝器，冷凝罐等。 此外，该方法能够减少在中间蒸馏塔（除最终精馏塔之外）抑制聚合的同时使用的聚合抑制剂的量。

公开(公告)号：US07235158B2

公开(公告)日：2007-06-26

申请号：US10198433

申请日：2002-07-17

申请人： Yukihiro Matsumoto ,  Kazuhiko Sakamoto ,  Kenji Sanada

发明人： Yukihiro Matsumoto ,  Kazuhiko Sakamoto ,  Kenji Sanada

IPC分类号： B01D3/00 ,  B01D47/00

CPC分类号： B01D3/225 ,  B01D3/22 ,  B01D3/324 ,  Y10S203/11 ,  Y10S203/22

摘要： A perforated tray without downcomer having only a small deviation between the opening ratio based on the diameter of a column and the actual opening ratio and a perforated tray column without downcomer formed by disposing such perforated trays without downcomer are provided. The perforated trays without downcomer are characterized by having a ratio of (A)/(B) in the range of 1.1-1.5, wherein A denotes the opening ratio found from the standard pitch between centers of holes and (B) denotes the opening ratio based on the diameter of a column.

摘要翻译： 提供了一种没有降液管的多孔板，其具有基于塔的直径的开口率和实际开口率之间仅有小的偏差，以及没有降液管的多孔塔板塔，通过设置不具有降液管的多孔板而形成。 不含降液管的多孔塔板的特征在于（A）/（B）的比例在1.1-1.5的范围内，其中A表示从孔中心的标准间距所得的开口率，（B）表示开口率 基于柱的直径。

公开(公告)号：US06632329B1

公开(公告)日：2003-10-14

申请号：US09695882

申请日：2000-10-26

申请人： Noriaki Mizutani ,  Yukihiro Matsumoto ,  Kazuhiko Sakamoto ,  Kenji Sanada

发明人： Noriaki Mizutani ,  Yukihiro Matsumoto ,  Kazuhiko Sakamoto ,  Kenji Sanada

IPC分类号： B01D304

CPC分类号： B01D3/322 ,  B01D3/32 ,  Y10S159/901 ,  Y10S203/11 ,  Y10S203/22

摘要： A distillation apparatus is provided with a distillation tower, a reboiler, a bottom outflow pipe for drawing a liquid from the bottom of the distillation tower, and a pot provided between the bottom of the distillation tower and the bottom outflow pipe. A part of the drawn liquid is discharged to the outside of the distillation apparatus while the rest is flowed to the reboiler. The pot has a cross-sectional area smaller than a cross-sectional area of the distillation tower and larger than a cross-sectional area of the bottom outflow pipe.

摘要翻译： 蒸馏装置设有蒸馏塔，再沸器，用于从蒸馏塔底部抽出液体的底部流出管，以及设置在蒸馏塔的底部和底部流出管之间的罐。 拉出的液体的一部分被排出到蒸馏装置的外部，而其余部分流到再沸器。 该锅的截面积小于蒸馏塔的横截面积，大于底部流出管的横截面面积。

公开(公告)号：US20070003460A1

公开(公告)日：2007-01-04

申请号：US11498426

申请日：2006-08-03

申请人： Yukihiro Matsumoto ,  Takeshi Nishimura ,  Sei Nakahara ,  Naoto Kasaya

发明人： Yukihiro Matsumoto ,  Takeshi Nishimura ,  Sei Nakahara ,  Naoto Kasaya

IPC分类号： B01J8/04 ,  B01J8/08 ,  B01J10/00

CPC分类号： B01J8/067 ,  B01J8/001 ,  B01J2208/00044 ,  B01J2208/00061 ,  B01J2208/00212 ,  B01J2208/00513 ,  B01J2208/00539 ,  B01J2208/021 ,  B01J2208/025 ,  B01J2219/00777

摘要： A shell-and tube reactor including at least one reaction tube with a measuring means, substantially same solid particles being filled in the reaction tubes with or without the measuring means, a length of the filled solid particle layer, and a pressure drop thereof while passing a gas through the reaction tube, per each reaction tube, being substantially the same, respectively. By measuring the temperature of the catalyst particle layer, such a temperature as a representative can be gasped.

摘要翻译： 包括具有测量装置的至少一个反应管的管壳式反应器，在具有或不具有测量装置的反应管中填充基本相同的固体颗粒，填充的固体颗粒层的长度及其通过时的压降 通过反应管的每个反应管的气体分别基本相同。 通过测量催化剂颗粒层的温度，可以将诸如代表性的温度气化。

公开(公告)号：US06588450B2

公开(公告)日：2003-07-08

申请号：US09788598

申请日：2001-02-21

申请人： Yuichi Ijiri ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Fumio Munechika

发明人： Yuichi Ijiri ,  Yukihiro Matsumoto ,  Sei Nakahara ,  Fumio Munechika

IPC分类号： F17D114

CPC分类号： B65D88/10 ,  Y10T137/8342 ,  Y10T137/85954

摘要： This invention relates to a storage tank for a viscous oil containing easily polymerizable compounds. The storage tank of the present invention for storing viscous oil containing easily polymerizable compounds comprises a bottom plate, a side wall, a draw-off pipe and an inlet pipe. The bottom plate slopes downwardly toward the draw-off pipe, and an angle of downward inclination of the bottom plate is a gradient of at least 1/200. It becomes possible because of the storage tank to effectively prevent polymerization of easily polymerizable compounds contained in waste oil within the storage tank, and clogging of a pipe is suppressed considerably.

摘要翻译： 本发明涉及一种含有容易聚合的化合物的粘稠油储罐。 用于储存容易聚合的化合物的粘性油的本发明的储罐包括底板，侧壁，抽出管和入口管。 底板朝向排出管向下倾斜，底板的向下倾斜角度为至少1/200的坡度。 由于储罐能够有效地防止储罐内的废油中容易聚合的化合物的聚合，因此可以大幅度地抑制管堵塞。