Method of manufacturing (meth)acrylic acid
    2.
    发明授权
    Method of manufacturing (meth)acrylic acid 有权
    制造(甲基)丙烯酸的方法

    公开(公告)号:US06525216B1

    公开(公告)日:2003-02-25

    申请号:US09588834

    申请日:2000-06-07

    IPC分类号: C07C5142

    摘要: A method of manufacturing (meth)acrylic acid includes: a reaction step of carrying out a catalytic gas-phase oxidation reaction; an absorbing step of absorbing (meth)acrylic acid from a (meth)acrylic-acid-containing mixed gas prepared in the reaction step; a refinement step of separating, refining, and recovering (meth)acrylic acid from a (meth)acrylic-acid-containing liquid prepared in the absorbing step; and a recirculation step of recirculating (meth)acrylic acid contained in a vent gas produced in the refinement step to the absorbing step and/or the refinement step.

    摘要翻译: 制备(甲基)丙烯酸的方法包括:进行催化气相氧化反应的反应步骤;从(甲基)丙烯酸混合气体中吸收(甲基)丙烯酸的吸收步骤 反应步骤;从在吸收步骤中制备的(甲基)丙烯酸的液体中分离,精制和回收(甲基)丙烯酸的精制步骤; 以及将在精炼步骤中产生的排气中包含的(甲基)丙烯酸再循环到吸收步骤和/或精制步骤的再循环步骤。

    Apparatus for the purification of organic compounds containing readily-blocking substances and process thereof
    3.
    发明授权
    Apparatus for the purification of organic compounds containing readily-blocking substances and process thereof 有权
    用于纯化含有易阻塞物质的有机化合物的装置及其方法

    公开(公告)号:US06436245B1

    公开(公告)日:2002-08-20

    申请号:US09585617

    申请日:2000-06-02

    IPC分类号: B01D320

    摘要: A purification tower for purifying liquid by contacting the liquid with gas, the purification tower including: (a) a shell; and (b) a plurality of baffles, each of which is fixed to an internal surface of the shell, (i) said each baffle having a flat upper surface and a plurality of openings are formed in each of the baffle so that the liquid and the gas pass through the openings; (ii) any adjacent pair of the baffles are arranged so that a bottom of the shell is covered by the pair of the baffles viewing in an longitudinal direction of the shell. The present invention thus configured can provide a process and an apparatus for the purification of even an organic compound containing a readily-blocking substances, which are capable of continuously purifying such an organic substance over the long time without discontinuing operations.

    摘要翻译: 1.一种用于通过使液体与气体接触来净化液体的净化塔,所述净化塔包括:(a)壳; 和(b)多个挡板,每个挡板固定在外壳的内表面上,(i)所述每个隔板具有平坦的上表面,并且在每个挡板中形成多个开口,使得液体和 气体通过开口;(ii)任何相邻的挡板对被布置成使得壳体的底部被沿着壳体的纵向方向观察的一对挡板覆盖。由此构造的本发明可以提供一种 方法和用于纯化甚至含有易阻塞物质的有机化合物的装置,其能够在不中断操作的情况下长时间地连续净化这种有机物质。

    Method for preventing plate type heat exchanger from blockage
    5.
    发明授权
    Method for preventing plate type heat exchanger from blockage 失效
    防止板式换热器堵塞的方法

    公开(公告)号:US06848501B2

    公开(公告)日:2005-02-01

    申请号:US10356428

    申请日:2003-01-31

    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。

    Method of treating waste liquid
    6.
    发明授权

    公开(公告)号:US06638432B2

    公开(公告)日:2003-10-28

    申请号:US09893486

    申请日:2001-06-29

    IPC分类号: C02F162

    摘要: Disclosed is a method of removing heavy metals contained in exhaust gas which has been generated by burning a waste liquid containing the heavy metals discharged in a process of producing organic compounds. The method includes the steps in the order of: (a) a combustion step of burning the waste liquid to produce exhaust gas; (b) a gas-liquid contact step of rendering a liquid containing an alkali compound in contact with the exhaust gas to collect the heavy metals in bottoms of the liquid; and (c) a coagulating step of adding a coagulant to the bottoms to coagulate the heavy metals in the bottoms for removal of the heavy metals. According to this method, the heavy metals contained in the exhaust gas can be efficiently separated and removed.

    Method for refining easily polymerizable matter-contained substance and apparatus therefor
    7.
    发明授权
    Method for refining easily polymerizable matter-contained substance and apparatus therefor 有权
    精制容易聚合物质的物质的方法及其装置

    公开(公告)号:US06635148B1

    公开(公告)日:2003-10-21

    申请号:US09537621

    申请日:2000-03-29

    IPC分类号: B01D106

    摘要: A method for refining an easily polymerizable matter while preventing an easily polymerizable matter-containing substance from being polymerized and an apparatus for use in the method are disclosed. The method and apparatus for refining and separating the easily polymerizable matter-containing substance by the use of a distillation column provided with a heat exchanger set the linear velocity of a vapor in a connecting line intervening between the distillation column and the heat exchanger at a level of not less than 5 m per second and the retention time of the vapor at a level of not more than 3 seconds.

    摘要翻译: 公开了一种在容易聚合的物质聚合的同时防止容易聚合的物质的精制的方法和该方法中使用的装置。 通过使用设置有热交换器的蒸馏塔来精炼和分离容易聚合的含物质的方法和装置,将蒸馏塔和热交换器之间的连接管中的蒸汽的线速度设定在一定水平 不低于5米/秒,蒸气的停留时间不超过3秒。

    Apparatus and method for handling easily polymerizable compound
    8.
    发明授权
    Apparatus and method for handling easily polymerizable compound 有权
    用于处理容易聚合的化合物的装置和方法

    公开(公告)号:US06585862B1

    公开(公告)日:2003-07-01

    申请号:US09642578

    申请日:2000-08-19

    IPC分类号: B01D300

    摘要: The present invention provides an apparatus for handling an easily polymerizable compound such as (meth)acrylic acid which includes a tubular member that is furnished to a side wall of the apparatus and opened to the inside of the apparatus, specifically, for example, an apparatus and a method which effectively inhibit the polymerization of (meth)acrylic acid in a distillation column for (meth)acrylic acid wherein the distillation column has such as an inlet or outlet of gas or liquid, a manhole, or a tube into which an instrument is inserted. The tubular member (e.g. an inlet or outlet, a manhole, a tube into which an instrument is inserted) is set so as to have a downward gradient (&agr;) in the range of 3° to 70° toward the inside of the apparatus.

    摘要翻译: 本发明提供了一种处理容易聚合的化合物(如(甲基)丙烯酸)的装置,其包括设置在设备的侧壁并向设备内部开口的管状部件,具体地,例如是装置 以及有效抑制(甲基)丙烯酸在(甲基)丙烯酸的蒸馏塔中聚合的(甲基)丙烯酸的方法,其中蒸馏塔具有气体或液体的入口或出口,人孔或管,仪器 被插入。 管状构件(例如,入口或出口,人孔,插入仪器的管)被设定为朝向设备内部具有在3°至70°范围内的向下梯度(α)。

    Method for disposal of waste from acrylic acid process and acrylic ester process
    9.
    发明授权
    Method for disposal of waste from acrylic acid process and acrylic ester process 有权
    从丙烯酸工艺和丙烯酸酯工艺处理废物的方法

    公开(公告)号:US07205429B2

    公开(公告)日:2007-04-17

    申请号:US10664237

    申请日:2003-09-17

    IPC分类号: C07C67/48 C07C57/02

    摘要: This invention is providing a method for efficient treatment of the waste material from a process for production of acrylic acid and an acrylic ester. This is a method for the disposal of waste material, which at least one waste material selected from the group consisting of waste oil, waste water, and waste gas emitted from a process for production of acrylic acid is/are purified with at least one waste material selected from the group consisting of waste oil, waste water, and waste gas emitted from a process for production of an acrylic ester jointly. The efficiency of the treatment is enhanced by simultaneously treating the waste material.

    摘要翻译: 本发明提供了一种从丙烯酸和丙烯酸酯的生产方法对废料进行有效处理的方法。 这是一种用于处理废物的方法,其中至少一种从由废油,废水和从生产丙烯酸的方法排出的废气中的废气中选出的废料被至少一种废物净化 从由废丙烯酸酯的制造方法排出的废油,废水和废气组成的组中选择的材料。 通过同时处理废料来提高处理效率。

    Method for starting up reactor and reactor system
    10.
    发明申请
    Method for starting up reactor and reactor system 有权
    启动反应堆和反应堆系统的方法

    公开(公告)号:US20060009655A1

    公开(公告)日:2006-01-12

    申请号:US11221213

    申请日:2005-09-07

    IPC分类号: C07C51/16 B01J10/00

    摘要: A method for quickly starting up a reactor and a reactor system therefor are provided. A shell-and-tube reactor in the system is adapted to circulate a heat medium having a solid point in the range of 50-250° C. to the outside of the reaction tubes and characterized by initiating temperature elevation of the reactor by introducing a gas of a temperature in the range of 100-400° C. to the reaction tubes' side and then circulating the heat medium in a heated state to the outside of the reaction tubes. By introducing a gas of an elevated temperature preparatorily to the reaction tubes, it is made possible to prevent the heat medium after circulation from being solidified again and enable the reactor to be quickly started up.

    摘要翻译: 提供了一种用于快速启动反应器及其反应器系统的方法。 系统中的管壳式反应器适于将具有在50-250℃范围内的固点的热介质循环到反应管的外部,并且其特征在于通过引入反应器的温度升高 将温度在100-400℃范围内的气体加到反应管侧,然后将加热的热介质循环到反应管的外部。 通过将升温的气体预先引入反应管,可以防止循环后的热介质再次固化,使反应器快速启动。