METHOD FOR PRODUCING BETA ZEOLITE
    11.
    发明公开

    公开(公告)号:EP3473597A1

    公开(公告)日:2019-04-24

    申请号:EP17813320.3

    申请日:2017-06-13

    IPC分类号: C01B39/46

    摘要: Provided is a production method with which it is possible to produce beta zeolite at high purity by suppressing the generation of impurities by a seed crystal addition method that can reduce the environmental burden as much as possible, without using an organic structure-directing agent. This method for producing beta zeolite having a step that mixes and heats an organic-compound-free reaction mixture comprising a silica source, alumina source, alkali source, and water with beta zeolite seed crystals, wherein (I) beta zeolite synthesized without using an organic structure-directing agent and having 90% or more by volume of particles 10 µm or less in diameter in the particle size distribution by a laser diffraction scattering-type particle size distribution measurement method is used, (III) acid-treated zeolite in which the SiO 2 /Al 2 O 3 ratio is 150 or less is prepared by (II) contact treatment with an acidic aqueous solution, and the acid-treated zeolite is used as the beta zeolite seed crystals.

    MSE-TYPE ZEOLITE PRODUCTION METHOD
    14.
    发明公开

    公开(公告)号:EP3450397A1

    公开(公告)日:2019-03-06

    申请号:EP17789623.0

    申请日:2017-04-26

    IPC分类号: C01B39/48 B01J29/70

    摘要: The objective of the invention is to provide an MSE-type zeolite production method such that an MSE-type zeolite can be produced in a comparatively short heating time by using inexpensive tetraethylammonium ion. The production method of the present invention comprises steps of:
    (1) mixing a silica source, an alumina source, an alkali source, tetraethylammonium ion, and water in such a manner as to yield a reaction mixture of the composition represented by the molar ratios indicated below:
    SiO 2 /Al 2 O 3 = between 10 and 100 inclusive
    (Na 2 O + K 2 O)/SiO 2 = between 0.15 and 0.50 inclusive
    K 2 O/(Na 2 O + K 2 O) = between 0.05 and 0.7 inclusive
    TEA 2 O/SiO 2 = between 0.08 and 0.20 inclusive
    H 2 O/SiO 2 = between 5 and 50 inclusive;

    (2) using the MSE-type zeolite as a seed crystal, and adding this seed crystal to the mixture at a proportion of 5 to 30% by mass with respect to the silica component in the reaction mixture; and
    (3) heating, under hermetic seal at a temperature of 100 to 200°C, the reaction mixture whereto the seed crystal has been added.

    ZEOLITE PRODUCTION METHOD
    15.
    发明公开
    ZEOLITE PRODUCTION METHOD 审中-公开
    ZEOLITH-HERSTELLUNGSVERFAHREN

    公开(公告)号:EP2589573A1

    公开(公告)日:2013-05-08

    申请号:EP11800831.7

    申请日:2011-06-28

    IPC分类号: C01B39/46 C01B39/36

    摘要: Disclosed is a method for readily and inexpensively producing zeolite without using an organic structure-directing agent (organic SDA). Specifically disclosed is a method whereby a gel containing a silica source, an alumina source, an alkaline source and water is reacted with zeolite seed crystals, to produce a zeolite with the same kind of skeletal structure as the zeolite. The gel used is a gel of a composition whereby, when a zeolite is synthesized from this gel only, the synthesized zeolite comprises at least one of the kinds of composite building units of the target zeolite.

    摘要翻译: 公开了一种在不使用有机结构导向剂(有机SDA)的情况下容易且廉价地生产沸石的方法。 具体公开了一种使含有二氧化硅源,氧化铝源,碱性源和水的凝胶与沸石晶种反应的方法,以制备具有与沸石相同种类的骨架结构的沸石。 使用的凝胶是组合物的凝胶,其中当仅由该凝胶合成沸石时,合成的沸石包含目标沸石的复合构建单元中的至少一种。