Selective alkylation of alkylaromatics over HZSM-5 zeolite synthesised in fluoridemedium

Fluoridemedium에서 HZSM-5 제올라이트를 이용한 알킬아로마틱의 선택적 알킬화

  • Published : 2011.05.27

Abstract

HZSM-5, synthesized in fluoride medium, showed high selectivity for the formation of 1,4-diethylbenzene (1,4-DEB) in the vapour phase ethylation of ethylbenzene (EB) with ethanol and hence becomes a convenient eco-friendly substitute for hazardous mineral acid catalysts. De-ethylation of EB to benzene was also minimized over this catalyst. As the medium pore size and presence of weak and medium acid sites might be the cause of such benefits, fluoride mediated synthesis of ZSM-5 is proven to be advantageous for para-selective alkylation of alkyl aromatics.

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