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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 23, Number 2
JKCSEZ 23(2)
April 20, 1979

Title	Oxidation of Propylene on Copper(Ⅱ)-Exchanged Zeolite. Active Site for the Formation of Acrolein 구리(Ⅱ)를 이온교환한 제올라이트 Y 에서 프로필렌의 산화반응. 아크롤레인 생성의 활성점
Author	Young Sun Uh, Hakze Chon 어용선, 전학제
Keywords
Abstract	구리(Ⅱ)를 이온교환한 제올라이트 Y에서 프로필렌을 산화시킬 때 아크롤레인을 생성하는 활성점에 관하여 검토하였다. 구리(Ⅱ)를 이온교환한 제올라이트 Y내에 존재하는 Bronsted 산점은 반응 초기에 탄화수소의 생성을 주다가, 반응이 진행됨에 따라 피독되어 가는 것 같다. 아크롤레인의 생성은 탄화수소의 생성이 있는 동안은 극히 낮으며, 정상 상태에서의 생성율은 제올라이트 내부표면의 구리 이온의 분포와 관계가 있는 것 같다. 이로 미루어 보아 아크롤레인을 형성하는 활성점은 Bronsted 산점이 아니고 구리 이온이라고 생각된다. The active site for the formation of acrolein in propylene oxidation reaction over copper(Ⅱ)-exchanged zeolite Y has been studied. At the early stage of the reaction, the formation of hydrocarbons was observed. The formation of hydrocarbons decreased gradually during the course of reaction, apparently due to the poisoning the Bronsted acid sites. The formation of acrolein was quite low when the formation of hydrocarbons was proceeding. The formation of acrolein was depend on the copper ion content and this can be related to the availability of the copper ions inside the supercage. It seems that it is the copper ion not the Bronsted acid site which is primarily responsible for the formation of acrolein.
Page	80 - 87
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