不同模板剂作用下CHA型沸石的制备研究

doi:10.19964/j.issn.1006-4990.2022-0244

Abstract

Abstract:

CHA zeolite has the outstanding performance in the catalyzation，adsorption and membrane separation of chemical industry.However，the impurity of MER phase usually existed during the formation of CHA zeolite and it is difficult to prepare the pure CHA phase.To prepare pure phase CHA zeolite with high crystallinity，on the base of the FAU zeolite recipe，the influences of TMAOH and TMAF on the products under the synthetic condition with K⁺ and without K⁺ were thoroughly investigated.The transformation of FAU、MER and CHA zeolite was deeply researched and the appropriate way of producing the pure CHA zeolite was found.It was shown that the pure CHA zeolite could be produced with the addition of TMAF compared to TMAOH，and CHA crystals had higher crystallinity and more integrality of micromorphology under the synthetic condition with K⁺.

Key words: CHA zeolite, FAU zeolite, organic template, high crystallinity

CLC Number:

TQ649.4

YIN Xiaoyan,LIU Ning,SONG Feng,LONG Shuqi. Research on synthesis of CHA zeolite with different templates[J]. Inorganic Chemicals Industry, 2023, 55(2): 55-61.

Figures/Tables 10

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Research on synthesis of CHA zeolite with different templates

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