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    • 62. 发明申请
    • 雰囲気ガスの供給方法
    • 供应大气气体的方法
    • WO2003043969A1
    • 2003-05-30
    • PCT/JP2002/012008
    • 2002-11-18
    • 三菱化学株式会社矢田 修平強力 正康
    • 矢田 修平強力 正康
    • C07C57/075
    • C07C51/50C07C67/62C07C57/04C07C69/54
    • A method for supplying an atmosphere gas, wherein a pressure in a vapor phase of a tank (1) or a make−up vessel (2) is measured with a pressure gage (P−1) or (P−2) and a dry air/nitrogen mixed gas is supplied to a tank (1) or a make−up vessel (2) in an amount corresponding to a consumed amount of the gas, the pressure in a line (5) for supplying the mixed gas is measured with a pressure gage (P−5) and a dry air/nitrogen mixed gas is supplied to a line (5) in an amount corresponding to a consumed amount of the gas, and the opening of a nitrogen flow control valve (V−4) is controlled in proportion to the opening of a dry air flow control valve (V−3), to thereby allow the supply of a mixed gas having a predetermined oxygen content. The method allows the supply of an atmosphere gas having a predetermined composition with stability, independently of the change of the used amount of the gas, to a production or storage apparatus for a compound which is required to be produced, stored, and handled in a strictly controlled atmosphere, such as (meth)acrylic acid or its ester, which is easy to polymerize and forms an explosive composition at an ordinary temperature.
    • 一种供应气氛气体的方法,其中用压力表(P-1)或(P-2)和(P-2)测量罐(1)或补充容器(2)的气相中的压力 将空气/氮气混合气体以对应于气体的消耗量的量供应到罐(1)或补充容器(2),用于供给混合气体的管线(5)中的压力用 将压力计(P-5)和干燥空气/氮气混合气体以对应于气体的消耗量的量供应到管线(5),并且打开氮气流量控制阀(V-4) 与干燥空气流量控制阀(V-3)的打开成比例地控制,从而允许供给具有预定氧含量的混合气体。 该方法允许将具有预定组成的气氛气体与所用气体的使用量的变化无关地稳定地供应到需要生产,储存和处理的化合物的生产或储存装置中 严格控制的气氛,如(甲基)丙烯酸或其酯,易于聚合并在常温下形成爆炸性组合物。
    • 66. 发明申请
    • 多管式反応器を用いた気相接触酸化方法
    • 使用多重反应器的蒸气相催化氧化方法
    • WO2004018403A1
    • 2004-03-04
    • PCT/JP2003/010600
    • 2003-08-21
    • 三菱化学株式会社矢田 修平保坂 浩親神野 公克
    • 矢田 修平保坂 浩親神野 公克
    • C07C51/21
    • C07C51/215B01J8/067B01J2208/00212B01J2208/00221B01J2208/0023C07C45/33C07C45/35C07C51/00C07C51/252C07C47/22C07C57/04
    • A method of vapor phase catalytic oxidation that is capable of effectively removing heat of reaction, preventing occurrence of hot spots and efficiently obtaining a desired product. In particular, a method of performing a vapor phase catalytic oxidation of substance to be oxidized with a gas containing molecular oxygen by means of a multitubular reactor, the multitubular reactor comprising a cylindrical reactor shell fitted with a raw material supply port and a product outlet; multiple circular conduits disposed around the cylindrical reactor shell and used to introduce heat medium into the cylindrical reactor shell or to lead heat medium out therefrom; a circulation device for connecting the multiple circular conduits to each other; multiple reaction tubes restrained by means of multiple tube plates of the reactor and having a catalyst accommodated therein; and multiple baffles arranged in the longitudinal direction of the reaction tube and used to change the direction of heat medium introduced in the reactor shell. In this method, the vapor phase catalytic oxidation is carried out under such conditions that the heat transfer coefficient of heat medium is 1000 W/(m .K) or higher.
    • 一种气相催化氧化方法,其能够有效地除去反应热,防止发生热点并有效地获得所需产物。 具体而言,一种通过多管式反应器对含有分子氧气体进行氧化的物质进行气相催化氧化的方法,该多管式反应器包括装配有原料供给口和产品出口的圆柱形反应器壳体; 多个圆形管道设置在圆柱形反应器壳体周围,用于将热介质引入圆柱形反应器壳体或从其中引出热介质; 用于将多个圆形导管彼此连接的循环装置; 多个反应管通过反应器的多个管板约束并具有容纳在其中的催化剂; 以及沿反应管的纵向布置的多个挡板,用于改变引入反应器壳体的热介质的方向。 在该方法中,气相催化氧化在热介质的传热系数为1000W /(m 2·K)以上)的条件下进行。