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.

    Organotemplate-Free Solid-State Synthetic Method For Zeolite Molecular Sieves
    15.
    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。

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