Method for production of acrylic acid
    51.
    发明授权
    Method for production of acrylic acid 有权
    丙烯酸生产方法

    公开(公告)号:US07109372B2

    公开(公告)日:2006-09-19

    申请号:US10633170

    申请日:2003-08-01

    IPC分类号: C07C51/16

    CPC分类号: C07C51/252 C07C57/04

    摘要: A method is disclosed which produces acrylic acid in a high yield as maintaining the conditions for purifying acrylic acid in constant ranges and preventing the acrylic acid from polymerization. By using single a single reactor, propylene concentration adjusting in the range of 7–15 vol. % and water concentration adjusting in the range of 0–10 vol. % are introduced thereinto thereby obtaining an acrylic acid-containing gas. Then the gas is introduced to an acrylic acid absorption column to adjust water concentration in the range of 1–45 wt. %, thereby preventing from polymerization.

    摘要翻译: 公开了一种以高产率生产丙烯酸的方法,其保持将丙烯酸纯化到一定范围内并防止丙烯酸聚合的条件。 通过使用单个单个反应器,丙烯浓度调节在7-15vol。 %和水浓度调节在0-10 vol。 引入%,从而得到含丙烯酸的气体。 然后将气体引入丙烯酸吸收塔以调节1-45重量%的水浓度。 %,由此防止聚合。

    Purification apparatus provided with low heat conductive member

    公开(公告)号:US07081185B2

    公开(公告)日:2006-07-25

    申请号:US10254807

    申请日:2002-09-26

    IPC分类号: B01D3/00 C07C51/44

    摘要: The object of this invention to provide an improved arrangement that enables to prevent adhesion of polymer on or around the inner wall of a purification apparatus directly equipped on the outer wall thereof with an attachment such as a support by suppressing local temperature lowering inside the apparatus due to the existence of the attachment. The present invention provides a purification apparatus comprising an attachment directly mounted on an outer wall of the apparatus; and a covering material made of a low heat conductive material which partly or entirely covers the outer wall of the apparatus, and which partly or entirely covers the attachment.

    Panel display apparatus
    53.
    发明申请
    Panel display apparatus 审中-公开
    面板显示装置

    公开(公告)号:US20050007360A1

    公开(公告)日:2005-01-13

    申请号:US10883683

    申请日:2004-07-06

    摘要: A panel display apparatus comprises a luminance control section for multiplying respective input pixel signals by coefficients corresponding to respective pixels so as to correct dispersion in luminance level between pixels on a plasma display panel caused when display based on signals having the same luminance level is executed, and for thereby generating corrected pixel data. The corrected pixel data is converted into address data in a display data creation section. The address data is supplied to an address driver via a frame memory.

    摘要翻译: 面板显示装置包括:亮度控制部分,用于将各个输入像素信号乘以与各个像素相对应的系数,以便在基于执行具有相同亮度级别的信号进行显示时引起的等离子体显示面板上的像素之间的亮度水平的校正色散, 并由此产生校正像素数据。 校正后的像素数据被转换成显示数据生成部中的地址数据。 地址数据通过帧存储器提供给地址驱动器。

    Method for absorption of acrylic compound and apparatus therefor
    54.
    发明授权
    Method for absorption of acrylic compound and apparatus therefor 有权
    吸收丙烯酸类化合物的方法及其设备

    公开(公告)号:US06667419B1

    公开(公告)日:2003-12-23

    申请号:US09605219

    申请日:2000-06-28

    IPC分类号: C07C5142

    摘要: A method for the absorption of (meth)acrylic acid and/or (meth)acrolein and an apparatus thereof which, in an absorption column adapted to cause an (meth)acrylic acid and/or (meth)acrolein-containing gas obtained in consequence of catalytic gas phase oxidation to come into countercurrent contact with a solvent, contemplate using a packing of relatively high efficiency in absorption disposed on the upstream side of the flow of a liquid containing the solvent and a packing and/or trays of relatively low performance of forming polymerization disposed on the downstream side thereof, in the column.

    摘要翻译: 用于吸收(甲基)丙烯酸和/或(甲基)丙烯醛的方法及其装置,其在适于引起由此得到的(甲基)丙烯酸和/或(甲基)丙烯醛的气体的吸收塔中 的催化气相氧化以与溶剂逆流接触,考虑使用设置在含有溶剂的液体的流动的上游侧的吸收效率相对较高的填料和相对较低性能的填料和/或塔盘 在塔的下游侧形成聚合。

    Purifying apparatus possessing vapor dispersing device
    55.
    发明授权
    Purifying apparatus possessing vapor dispersing device 失效
    具有蒸气分散装置的净化装置

    公开(公告)号:US06641700B1

    公开(公告)日:2003-11-04

    申请号:US09519383

    申请日:2000-03-03

    IPC分类号: B01D334

    摘要: A purifying apparatus characterized by being equipped with a vapor dispersing device possessing in a vapor inlet part owned by the apparatus on the lateral inside thereof an opening part facing downward from the horizontal direction and a horizontal projected cross section area in the range of 10-40% of the cross section area of said apparatus. In consequence of the incorporation of the vapor dispersing device according to this invention, the drift of the gas is repressed, the efficiency of separation is improved, and the possible polymerization of a compound under treatment in the lower part of the column is prevented.

    摘要翻译: 一种净化装置,其特征在于配备有蒸气分散装置,该蒸气分散装置在其侧面内部具有由该装置所拥有的蒸汽入口部分,其具有从水平方向向下的开口部分和10-40度范围内的水平投影截面积 所述装置的横截面积的百分比。 由于结合根据本发明的蒸汽分散装置,气体的漂移被抑制,分离效率提高,并且防止在塔下部处理的化合物可能的聚合。

    Distillation apparatus and distilling method
    56.
    发明授权
    Distillation apparatus and distilling method 有权
    蒸馏装置和蒸馏法

    公开(公告)号:US06632329B1

    公开(公告)日:2003-10-14

    申请号:US09695882

    申请日:2000-10-26

    IPC分类号: B01D304

    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。

    Method for preventing polymerization in thin-film type evaporating device
    57.
    发明授权
    Method for preventing polymerization in thin-film type evaporating device 有权
    薄膜型蒸发装置防止聚合的方法

    公开(公告)号:US06627047B1

    公开(公告)日:2003-09-30

    申请号:US09556754

    申请日:2000-04-21

    IPC分类号: B01D122

    摘要: A method is provided for preventing an easily polymerizable substance from being polymerized in a thin-film type evaporating device by supplying a solution of the substance to the evaporating heating surface of the device by the centrifugal force of a stirring rotary shaft, characterized by mixing a distilled vapor of the substance with a molecular oxygen-containing gas and supplying the extracted liquid or a solution having lower viscosity than the extracted liquid to a feed raw material inlet thereby adjusting the quantity of a wetting liquid per unit length of the surface in the range of 0.02-2 m3/mHr. In the evaporation of the substance by the use of the device, a method for preventing the substance from polymerization is provided.

    摘要翻译: 提供了一种通过利用搅拌旋转轴的离心力将物质溶液供给到该装置的蒸发加热面上来防止在薄膜型蒸发装置中聚合易于聚合的物质的方法,其特征在于将 将具有分子含氧气体的物质的蒸馏蒸气,并将萃取的液体或具有比萃取液体的粘度低的溶液供给到进料原料入口,从而将表面的每单位长度的润湿液体的量调节在该范围内 为0.02-2m 3 / mHr。 在通过使用该装置的物质的蒸发中,提供了防止物质聚合的方法。

    Shell-and-tube heat exchanger and method for inhibiting polymerization in the shell-and-tube heat exchanger
    58.
    发明授权
    Shell-and-tube heat exchanger and method for inhibiting polymerization in the shell-and-tube heat exchanger 有权
    壳管式热交换器和管壳式换热器中聚合抑制方法

    公开(公告)号:US06620969B1

    公开(公告)日:2003-09-16

    申请号:US09520744

    申请日:2000-03-08

    IPC分类号: C07C5142

    摘要: A shell-and-tube heat exchanger for handling an easily polymerizable substance is disclosed, which is characterized by having no part for stagnation of said process fluid on the surfaces for contact with the process fluid. By eliminating undulations from the inner surfaces of the heat transfer tubes, it is made possible to prevent the easily polymerizable substance from polymerizing and, at the same time, prevent adhesion of a polymer to the surfaces. Thus, the efficiency of heat exchange is enhanced and the protracted continuous operation is realized.

    摘要翻译: 公开了一种用于处理容易聚合的物质的管壳式热交换器,其特征在于,在与工艺流体接触的表面上不存在所述工艺流体停滞的部分。 通过从传热管的内表面消除起伏,可以防止容易聚合的物质聚合,同时防止聚合物粘合到表面上。 因此,提高了热交换的效率,并且实现了持续的连续操作。

    Solid substance removing device
    59.
    发明授权
    Solid substance removing device 有权
    固体物质去除装置

    公开(公告)号:US06495045B2

    公开(公告)日:2002-12-17

    申请号:US09880395

    申请日:2001-06-13

    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。