Synthesis of a boron-containing zeolite with an MWW framework structure

    公开(公告)号:US10196276B2

    公开(公告)日:2019-02-05

    申请号:US15316220

    申请日:2015-06-03

    Applicant: BASF SE

    Abstract: The present invention relates to a process for the production of a boron-containing zeolitic material having an MWW framework structure comprising YO2 and B2O3, wherein Y stands for a tetravalent element, wherein said process comprises (a) providing a mixture comprising one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (b) crystallizing the mixture obtained in (a) for obtaining a layered precursor of the boron-containing MWW-type zeolitic material, (c) calcining the layered precursor obtained in (b) for obtaining the boron-containing zeolitic material having an MWW framework structure, wherein the one or more organotemplates have the formula (I): R1R2R3N, wherein R1 is (C5-C8)cycloalkyl, and wherein R2 and R3 are independently from each other H or alkyl, as well as to a synthetic boron-containing zeolite which is obtainable and/or obtained according to the inventive process as well as to its use.

    Organotemplate-free solid-state synthetic method for zeolite molecular sieves

    公开(公告)号:US10160656B2

    公开(公告)日:2018-12-25

    申请号:US14649637

    申请日:2013-12-05

    Applicant: BASF SE

    Abstract: Described is a preparation method for zeolite molecular sieves by means of solid-state reactions without the usage of organic templates. The method comprises the following steps: grinding and mixing the solid raw materials comprising the silicon source, the aluminum source and the alkali source, transferring the obtained mixture into an autoclave, conducting the crystallization for a period of 5 hours-20 days at a temperature of 50-200° C. After filtering and drying the crystallized products, molecular sieves in a powder form can be obtained. The method provides different molecular sieves, including ZSM-5 zeolite, Beta zeolite, FAU zeolite, MOR zeolite, LTA zeolite, and GIS zeolite, with a high crystallinity and an adjustable Si/Al ratio within a certain range. The obtained products exhibit a high crystallinity and a high purity, and the method does not require the use of organic templates and solvents, which avoids unnecessary consumptions during the production, simplifies the synthetic process, and also increases the yield from the autoclave reactor.

    Post-treatment of deboronated MWW zeolite

    公开(公告)号:US10099933B2

    公开(公告)日:2018-10-16

    申请号:US14435588

    申请日:2013-10-09

    Applicant: BASF SE

    Abstract: A process for the post-treatment of a zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure, wherein the framework structure of the zeolitic material comprises X2O3 and YO2, wherein Y is a tetravalent element and X is a trivalent element and wherein the molar ratio X2O3:YO2 is greater than 0.02:1; (ii) treating the zeolitic material provided in (i) with a liquid solvent system thereby obtaining a zeolitic material having a molar ratio X2O3:YO2 of at most 0.02:1, and at least partially separating the zeolitic material from the liquid solvent system; (iii) treating the zeolitic material obtained from (ii) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.

    Organotemplate-Free Solid-State Synthetic Method For Zeolite Molecular Sieves
    25.
    发明申请
    Organotemplate-Free Solid-State Synthetic Method For Zeolite Molecular Sieves 审中-公开
    无机固体合成方法用于沸石分子筛

    公开(公告)号:US20150298983A1

    公开(公告)日:2015-10-22

    申请号:US14649637

    申请日:2013-12-05

    Applicant: BASF SE

    Abstract: Described is a preparation method for zeolite molecular sieves by means of solid-state reactions without the usage of organic templates. The method comprises the following steps: grinding and mixing the solid raw materials comprising the silicon source, the aluminum source and the alkali source, transferring the obtained mixture into an autoclave, conducting the crystallization for a period of 5 hours-20 days at a temperature of 50-200° C. After filtering and drying the crystallized products, molecular sieves in a powder form can be obtained. The method provides different molecular sieves, including ZSM-5 zeolite, Beta zeolite, FAU zeolite, MOR zeolite, LTA zeolite, and GIS zeolite, with a high crystallinity and an adjustable Si/Al ratio within a certain range. The obtained products exhibit a high crystallinity and a high purity, and the method does not require the use of organic templates and solvents, which avoids unnecessary consumptions during the production, simplifies the synthetic process, and also increases the yield from the autoclave reactor.

    Abstract translation: 描述了通过固相反应而不使用有机模板的沸石分子筛的制备方法。 该方法包括以下步骤:将包含硅源,铝源和碱源的固体原料研磨并混合,将得到的混合物转移到高压釜中,在温度下进行5小时-20天的结晶 50-200℃。过滤并干燥结晶产物后,可获得粉末形式的分子筛。 该方法提供了不同的分子筛,包括ZSM-5沸石,β沸石,FAU沸石,MOR沸石,LTA沸石和GIS沸石,在一定范围内具有高结晶度和可调Si / Al比。 得到的产物具有高结晶度和高纯度,并且该方法不需要使用有机模板和溶剂,这避免了在生产过程中不必要的消耗,简化了合成过程,并且还提高了高压釜反应器的产率。

    Iron- And Copper-Containing Zeolite Beta From Organotemplate-Free Synthesis And Use Thereof In The Selective Catalytic Reduction Of NOx
    28.
    发明申请
    Iron- And Copper-Containing Zeolite Beta From Organotemplate-Free Synthesis And Use Thereof In The Selective Catalytic Reduction Of NOx 审中-公开
    含有铜和铜的沸石β从有机无模型合成及其在NOx的选择性催化还原中的应用

    公开(公告)号:US20130202524A1

    公开(公告)日:2013-08-08

    申请号:US13760466

    申请日:2013-02-06

    Applicant: BASF SE

    Abstract: Provided is a process for the production of a zeolitic material having a BEA-type framework structure comprising YO2 and X2O3. The process comprises the steps of (1) preparing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and seed crystals comprising one or more zeolitic materials having a BEA-type framework structure; (2) crystallizing the mixture; and (3) subjecting the zeolitic material having a BEA-type framework structure to an ion-exchange procedure with Cu and/or Fe. Y is a tetravalent element, and X is a trivalent element. The mixture does not contain an organotemplate as structure-directing agent, and the total amount of Cu and/or Fe in the ion-exchanged material ranges from 0.1 to 25 wt.-% calculated as Fe2O3 and CuO. Also provided is a zeolitic material having a BEA-type framework structure, and a method for the treatment of NOx by selective catalytic reduction (SCR).

    Abstract translation: 提供了一种生产具有包含YO 2和X 2 O 3的BEA型骨架结构的沸石材料的方法。 该方法包括以下步骤:(1)制备包含一种或多种YO源,X2O3的一种或多种来源的混合物,以及包含一种或多种具有BEA型骨架结构的沸石材料的晶种; (2)使混合物结晶; 和(3)使具有BEA型骨架结构的沸石材料与Cu和/或Fe进行离子交换程序。 Y是四价元素,X是三价元素。 该混合物不含作为结构导向剂的有机模板,并且离子交换材料中的Cu和/或Fe的总量为0.1至25重量%,以Fe 2 O 3和CuO计算。 还提供了具有BEA型骨架结构的沸石材料和通过选择性催化还原(SCR)处理NOx的方法。

    AN OXIDIC MATERIAL COMPRISING A ZEOLITE HAVING FRAMEWORK TYPE AEI

    公开(公告)号:US20220106192A1

    公开(公告)日:2022-04-07

    申请号:US17423590

    申请日:2020-01-21

    Applicant: BASF SE

    Abstract: A process for preparing an oxidic material comprising a zeolitic material having framework type AEI and a framework structure comprising a tetravalent element Y, a trivalent element X, and O, the process comprising preparing a synthesis mixture comprising water, a source of Y, a source of X comprising sodium, an AEI framework structure directing agent, and a source of sodium other than the source of X; and heating the synthesis mixture obtained from (i) to a temperature in the range of from 100 to 180° C. and keeping the synthesis mixture under autogenous pres-sure at a temperature in this range for a time in the range of at least 6 h, obtaining the oxidic material comprising a zeolitic material having framework type AEI and a framework structure comprising a tetravalent element Y, a trivalent element X, and O, comprised in its mother liquor; wherein the AEI framework structure directing agent according to (i) comprises a N, N-diethyl-2,6-dimethylpiperidinium cation.

Patent Agency Ranking