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490 条记录 (耗时 0.031 秒)

    Composite body
    4.
    发明授权
    Composite body 有权

    公开(公告)号：US11596904B2

    公开(公告)日：2023-03-07

    申请号：US16702752

    申请日：2019-12-04

    申请人： Evonik Operations GmbH

    发明人： Christian Hying ,  David Grzenia ,  Rolf-Walter Terwonne ,  Bastian Matthias Brugger ,  Kira Khaletskaya ,  Oliver Conradi ,  Hans-Jürgen Nettelnbreker ,  Alexander Paasche

    IPC分类号： B01D69/14 ,  B01D53/22 ,  B01D69/12 ,  B01D71/02 ,  B01D71/32

    摘要： The present invention provides a composite body having, on a porous substrate and in the interstices of the substrate that includes fibers, preferably of an electrically nonconductive material, a porous layer (1) composed of oxide particles bonded to one another and partly to the substrate that include at least one oxide selected from oxides of the elements Al, Zr, Ti and Si, preferably selected from Al2O3, ZrO2, TiO2 and SiO2, and having, at least on one side, a further porous layer (2) including oxide particles bonded to one another and partly to layer (1) that include at least one oxide selected from oxides of the elements Al, Zr, Ti and Si, preferably selected from Al2O3, ZrO2, TiO2 and SiO2, where the oxide particles present in layer (1) have a greater median particle size than the oxide particles present in layer (2), which is characterized in that the median particle size (d50) of the oxide particles in layer (1) is from 0.5 to 4 μm and the median particle size (d50) of the oxide particles in layer (2) is from 0.015 to 0.15 μm, preferably 0.04 to 0.06 μm, a process for producing corresponding composite bodies and for the use thereof, especially in gas separation.

    Ion exchange membrane for alkali chloride electrolysis and alkali chloride electrolysis apparatus
    9.
    发明授权
    Ion exchange membrane for alkali chloride electrolysis and alkali chloride electrolysis apparatus 有权

    公开(公告)号：US11447881B2

    公开(公告)日：2022-09-20

    申请号：US15491272

    申请日：2017-04-19

    申请人： AGC Inc.

    发明人： Yasushi Yamaki ,  Takayuki Kaneko ,  Hiromitsu Kusano ,  Takuo Nishio ,  Kazuo Umemura

    IPC分类号： C25B1/46 ,  C25B13/08 ,  B01D69/10 ,  C25B9/23 ,  B01D71/32 ,  C08J5/22 ,  B01D71/82

    摘要： To provide an ion exchange membrane for alkali chloride electrolysis for which membrane strength is increased while membrane resistance is reduced to reduce electrolysis voltage during alkali chloride electrolysis and which prevents peeling between layers (S) and a layer (C). The ion exchange membrane for alkali chloride electrolysis comprises a layer (C) which comprises a fluorinated polymer having carboxylic acid functional groups, at least two layers (S) which comprise a fluorinated polymer having sulfonic acid functional groups, and a reinforcing material, wherein the layers (S) include a layer (Sa) and a layer (Sb), the layer (Sa) is a layer which is adjacent to the layer (C), the layer (Sb) is a layer which is not adjacent to the layer (C), the reinforcing material is disposed in the layer (Sb) substantially in parallel to the layer (Sb) in a state not in contact with the layer (Sa), and the ion exchange capacity of the layer (Sa) is lower than the ion exchange capacity of the layer (Sb).

    Chemical liquid purification method
    10.
    发明授权
    Chemical liquid purification method 有权

    公开(公告)号：US11351503B2

    公开(公告)日：2022-06-07

    申请号：US16784976

    申请日：2020-02-07

    申请人： FUJIFILM Corporation

    发明人： Tetsuya Kamimura ,  Masahiro Yoshidome ,  Yukihisa Kawada

    IPC分类号： B01D61/02 ,  B01D71/32 ,  B01D65/10

    摘要： An object of the present invention is to provide a chemical liquid purification method which makes it possible to obtain a chemical liquid having excellent defect inhibition performance. The chemical liquid purification method according to an embodiment of the present invention is a chemical liquid purification method including obtaining a chemical liquid by filtering a substance to be purified containing an organic solvent by using two or more kinds of filters having different pore sizes, in which a supply pressure P1 of the substance to be purified supplied to a filter Fmax having a maximum pore size X1 among the two or more kinds of filters and a supply pressure P2 of the substance to be purified supplied to a filter Fmin having a minimum pore size X2 among the two or more kinds of filters satisfy P1>P2.