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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.
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公开(公告)号:EP2784025B1
公开(公告)日:2018-06-13
申请号:EP12851632.5
申请日:2012-11-22
申请人: Mitsui Mining & Smelting Co., Ltd. , National University Corporation Yokohama National University , The University of Tokyo
发明人: KUBOTA, Yoshihiro , INAGAKI, Satoshi , KOMATSU, Raita , ITABASHI, Keiji , OKUBO, Tatsuya , HIEDA, Toyohiko
CPC分类号: B01J29/7007 , B01J29/70 , B01J35/002 , B01J2229/186 , B01J2229/36 , B01J2229/37 , C01B39/026 , C01B39/46 , C01B39/48 , C07B61/00 , C07C4/06 , C07C11/06 , C10G11/00 , C10G11/05 , C10G11/10 , C10G2400/20
摘要: Provided is a beta-type zeolite which has a high catalytic activity and is not easily deactivated. The beta-type zeolite of the invention has a substantially octahedral shape, has a Si/Al ratio of 5 or more, and is a proton-type zeolite. The Si/Al ratio is preferably 40 or more. This beta-type zeolite is preferably obtained by transforming a raw material beta-type zeolite synthesized without using a structure directing agent into an ammonium-type zeolite through ion exchange, then, exposing the beta-type zeolite to water vapor, and subjecting the exposed beta-type zeolite to an acid treatment.
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公开(公告)号:EP3257813B1
公开(公告)日:2020-11-11
申请号:EP16749199.2
申请日:2016-02-08
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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
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.-
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
CPC分类号: C01B39/46 , C01B39/02 , C01B39/026 , C01B39/26 , C01B39/36 , C01B39/365 , C01B39/38 , C01B39/42 , C30B5/00 , C30B29/34
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。
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16.
公开(公告)号:EP2457872A1
公开(公告)日:2012-05-30
申请号:EP10804306.8
申请日:2010-07-21
发明人: CHAIKITTISILP, Watchcharop , SHANMUGAM, Palani Elangovan , ITABASHI, Keiji , OKUBO, Tatsuya , KAMIMURA, Yoshihiro
IPC分类号: C01B39/46
CPC分类号: C01B39/46 , B01D53/945 , B01D2255/502 , B01D2255/912 , B01D2255/9205 , B01D2255/9207 , B01D2258/012 , B01D2258/014 , B01J29/7007 , B01J2229/36 , Y02T10/22
摘要: A zeolite beta according to the present invention has a SiO 2 /Al 2 O 3 ratio of 10 to 16 and is aluminum-rich. The zeolite beta has a BET specific surface area measured in the state of a sodium type of 500 to 700 m 2 /g, a micropore specific surface area of 350 to 500 m 2 /g, and a micropore volume of 0.15 to 0.25 cm 3 /g.
摘要翻译: 本发明的沸石β的SiO 2 / Al 2 O 3比为10〜16,富铝。 β型沸石具有在500〜700m 2 / g的钠型,微孔比表面积为350〜500m 2 / g,微孔体积为0.15〜0.25cm 3的状态下测定的BET比表面积 /G。
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