公开(公告)号：US4954650A

公开(公告)日：1990-09-04

申请号：US377119

申请日：1989-07-10

申请人： Tadashi Abe ,  Mitsuyoshi Manabe ,  Koji Deguchi ,  Hiroyuki Uhara ,  Yukio Aoki

发明人： Tadashi Abe ,  Mitsuyoshi Manabe ,  Koji Deguchi ,  Hiroyuki Uhara ,  Yukio Aoki

IPC分类号： B01J23/88 ,  B01J27/19 ,  C07B61/00 ,  C07C45/35 ,  C07C45/37 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055

CPC分类号： C07C45/37 ,  C07C45/35 ,  C07C51/252

摘要： This invention relates to a improved method for the production of methacrylic acid by the steps of subjecting isobutylene and/or tertiory hutanol to catalytic vapor-phase oxidation with molecular oxygen in a first reactor, then supplying the resultant gax mixture to a second reactor, a rodlike or plate like insert set being placed in the empty space of gas inlet part of the tube of said second reactor.

公开(公告)号：US5264627A

公开(公告)日：1993-11-23

申请号：US909649

申请日：1992-07-07

申请人： Hiroyuki Tazaki ,  Ikuo Kurimoto ,  Hiroyuki Uhara ,  Yukio Aoki

发明人： Hiroyuki Tazaki ,  Ikuo Kurimoto ,  Hiroyuki Uhara ,  Yukio Aoki

IPC分类号： B01J23/88 ,  B01J27/188 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C51/00

CPC分类号： C07C51/25 ,  C07C51/235 ,  C07C51/252

摘要： A method for the production of methacrylic acid comprising the steps of simultaneously introducing at least one compound selected from the group consisting of methacrolein and isobutyl aldehyde and a molecular oxygen-containing gas into a heat exchanger type shell-and-tube reaction vessel packed with an oxide catalyst containing molybdenum and phosphorus thereby effecting catalytic vapor-phase oxidation reaction and/or catalytic vapor-phase oxidative dehydrogenation reaction and consequently forming methacrylic acid, which method is characterized by having the empty space in the gas outlet part of said reaction vessel with a solid filler.

摘要翻译： 一种生产甲基丙烯酸的方法，包括以下步骤：将同时引入至少一种选自甲基丙烯醛和异丁醛的化合物和含分子氧的气体引入到热交换器型管壳式反应容器中 含有钼和磷的氧化物催化剂，从而进行催化气相氧化反应和/或催化气相氧化脱氢反应，从而形成甲基丙烯酸，该方法的特征在于在反应容器的气体出口部分具有空的空间， 固体填料。

公开(公告)号：US4256783A

公开(公告)日：1981-03-17

申请号：US37930

申请日：1979-05-09

申请人： Masahiro Takada ,  Hiroyuki Uhara ,  Takahisa Sato

发明人： Masahiro Takada ,  Hiroyuki Uhara ,  Takahisa Sato

IPC分类号： B01J8/06 ,  C07C51/265 ,  C07C51/31 ,  F28F9/22 ,  F28D7/00 ,  F28F9/00

CPC分类号： B01J8/06 ,  B01J8/067 ,  C07C51/265 ,  C07C51/313 ,  F28D7/0066 ,  F28D7/16 ,  F28F9/22 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00256 ,  B01J2208/025 ,  B01J2219/00777 ,  F28F2009/226

摘要： A catalytic vapor phase oxidation reactor which comprises a fixed-bed shell and tube heat exchange apparatus in which a bundle of a multiplicity of tubes filled with at least one type of oxidizing catalyst are disposed in a shell and these tubes are passed through the apertures formed in at least one perforated shield plate to partition the inside of the shell into at least two heat transfer medium feed zones and in such a manner that each of the tubes passing through the perforated shield plate is not in direct contaction with the shield plate but the outer surface of the tube and the inner surface of the aperture are spaced apart by a distance of between 0.2-5 mm, supplying feed gas to the tubes of the reactor, and conducting exothermic catalytic vapor phase oxidation while controlling the temperatures for the heat transfer medium in each of the zones so that the temperature difference between each of the zones can be maintained between 0.degree.-100.degree. C.

摘要翻译： 一种催化气相氧化反应器，其包括固定床壳管热交换装置，其中将多个管填充有至少一种类型的氧化催化剂的管束设置在壳体中，并且这些管通过形成的孔 在至少一个穿孔屏蔽板中，以将壳体的内部分成至少两个传热介质进料区，并且使得穿过穿孔屏蔽板的每个管不与屏蔽板直接接触， 管的外表面和孔的内表面间隔开0.2-5mm的距离，向反应器的管供应进料气体，并且在控制传热温度的同时进行放热催化气相氧化 在每个区域中的介质，使得每个区域之间的温度差可以保持在0℃-100℃之间。

公开(公告)号：US4203906A

公开(公告)日：1980-05-20

申请号：US922791

申请日：1978-07-07

申请人： Masahiro Takada ,  Hiroyuki Uhara ,  Takahisa Sato

发明人： Masahiro Takada ,  Hiroyuki Uhara ,  Takahisa Sato

IPC分类号： B01J8/06 ,  C07C51/265 ,  C07C51/31 ,  F28F9/22 ,  C07D307/89

CPC分类号： B01J8/06 ,  B01J8/067 ,  C07C51/265 ,  C07C51/313 ,  F28D7/0066 ,  F28D7/16 ,  F28F9/22 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00256 ,  B01J2208/025 ,  B01J2219/00777 ,  F28F2009/226

摘要： A process for catalytic vapor phase oxidation which comprises using a fixed-bed shell and tube heat exchange type reactor in which a bundle of a multiplicity of tubes filled with at least one type of oxidizing catalyst are disposed in a shell and these tubes are passed through the apertures formed in at least one perforated shield plate to partition the inside of the shell into at least two heat transfer medium feed zones and in such a manner that each of the tubes passing through the perforated shield plate is not in direct contaction with the shield plate but the outer surface of the tube and the inner surface of the aperture are spaced apart by a distance of between 0.2-5 mm, supplying feed gas to the tubes of the reactor, and conducting exothermic catalytic vapor phase oxidation while controlling the temperatures for the heat transfer medium in each of the zones so that the temperature difference between each of the zones can be maintained between 0.degree.-100.degree. C.

摘要翻译： 一种用于催化气相氧化的方法，其包括使用固定床壳管式热交换型反应器，其中将多个管填充有至少一种类型的氧化催化剂的管束设置在壳中，并且这些管通过 形成在至少一个有孔屏蔽板中的孔以将壳体的内部分隔成至少两个传热介质进料区，并且使得穿过穿孔屏蔽板的每个管不与屏蔽件直接接触 板，但是管的外表面和孔的内表面间隔开0.2-5mm的距离，向反应器的管提供进料气体，并且进行放热催化气相氧化，同时控制温度 每个区域中的传热介质，使得每个区域之间的温度差可以保持在0℃-100℃之间。

公开(公告)号：US07253309B2

公开(公告)日：2007-08-07

申请号：US10353528

申请日：2003-01-29

申请人： Hiroyuki Uhara ,  Kazuo Anyouji ,  Hideyuki Hironaka ,  Hideo Onodera

发明人： Hiroyuki Uhara ,  Kazuo Anyouji ,  Hideyuki Hironaka ,  Hideo Onodera

IPC分类号： C07C51/235 ,  C07C51/16

CPC分类号： C07C51/252 ,  B01J8/001 ,  B01J8/067 ,  B01J23/002 ,  B01J23/8876 ,  B01J27/188 ,  B01J27/198 ,  B01J2208/00106 ,  B01J2208/00212 ,  B01J2208/00548 ,  B01J2208/00699 ,  B01J2208/00707 ,  B01J2208/00716 ,  B01J2523/00 ,  C07C57/04 ,  B01J2523/15 ,  B01J2523/17 ,  B01J2523/48 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/68

摘要： This invention is related to a shell-and-tube type reactor provided with reaction tubes packed with a catalyst and adapted to circulate a heat medium to the fluid outside the tubes and is characterized by a method introducing a gas into the catalyst beds so as to retain the relative humidity of the catalyst in the range of more than 40% while elevating the temperature of the reactor thereby starting up the reactor. This method prevents the catalyst from degradation of activity due to absorption of moisture, exalts the service life of the catalyst, and permits stable production of methacrylic acid.

摘要翻译： 本发明涉及一种管壳式反应器，其具有装有催化剂的反应管，其适于将热介质循环到管外的流体，其特征在于将气体引入催化剂床，以便 将催化剂的相对湿度保持在大于40％的范围内，同时升高反应器的温度，从而启动反应器。 该方法防止催化剂由于吸收水分而降解活性，提高了催化剂的使用寿命，并且可以稳定地生产甲基丙烯酸。

公开(公告)号：US06699999B2

公开(公告)日：2004-03-02

申请号：US10213083

申请日：2002-08-07

申请人： Tsukasa Takahashi ,  Hiroyuki Uhara ,  Kazuo Anyouji ,  Etsushige Matsunami

发明人： Tsukasa Takahashi ,  Hiroyuki Uhara ,  Kazuo Anyouji ,  Etsushige Matsunami

IPC分类号： C07D49302

CPC分类号： C07D403/04

摘要： The present invention has for its object to provide a production method of a pyromellitic anhydride which is not only conducive to an increased catalyst life and, hence, an enhanced operating rate of a plant (reduced downtime) and a reduction in catalyst cost but also conducive to reductions in byproducts and, hence, savings in the cost of after-treatments such as collection and purification. A production method of a pyromellitic anhydride comprising a step for catalytic gas-phase oxidation of a starting mixture gas consisting of a tetraalkylbenzene and/or a trialkylbenzaldehyde and a molecular oxygen-containing gas in a fixed-bed type reactor having a catalyst bed wherein the production method of a pyromellitic anhydride is carried out under the condition that the moisture content of said starting mixture gas to be introduced into the catalyst bed is not more than 2 volume %.

摘要翻译： 本发明的目的是提供一种均苯四酸酐的制备方法，其不仅有助于提高催化剂寿命，并因此提高设备的运行速度（减少停机时间）和降低催化剂成本，而且有利于 降低副产物，从而节省诸如收集和纯化的后处理成本。一种均苯四酸酐的制备方法，包括用于催化气相氧化起始混合气体的步骤，由四烷基苯和/或 在具有催化剂床的固定床式反应器中的三烷基苯甲醛和含分子氧气体中，其中在所述引入催化剂床的所述起始混合气体的水分含量为 不超过2卷％。