화학공학소재연구정보센터
학회 한국화학공학회
학술대회 1999년 가을 (10/22 ~ 10/23, 경남대학교)
권호 5권 2호, p.2201
발표분야 촉매/반응공학
제목 MFI 형 ferri silicate를 이용한 벤젠의 하이드록시 촉매반응
초록 Many attempts have recently been made to find a one step synthesis of phenol from benzene. Conventional partial oxidation methods with molecular oxygen mainly led to destruction of the aromatic ring and hence gave low selectivity towards phenol. Although there was a new proposal to hydroxylation of benzene with an oxygen/hydrogen mixture, the use of alternative oxidants promises the best results. While hydrogen peroxide is the favorite oxidant in liquid phase benzene hydroxylation on Ti-silicate-1, nitrous oxide is more preferred in the gas phase reaction.It is reported that Fe-containing ZSM-5 zeolites and their ferrisilicate analogs are shown to be the most efficient catalysts among wide range of catalysts for the benzene hydroxylation with nitrous oxide as an oxidant. In particular, as shown by Kharitonov et al. [1], ferrisilicate analogs of ZSM-5 zeolite are able to perform one-step oxidation of benzene to phenol by using nitrous oxide. The role of iron in the hydroxylation using nitrous oxide decomposition on Fe-ZSM-5 has been investigated by Panov and coworkers.[2-3]In this work, the MFI type ferrisilicates were hydrothermally synthesized under the content of the framework iron. NH3-Temperature programmed desorption(TPD) was performed to measure the acidic property of prepared zeolites. We have systematically studied the catalytic activity of MFI type ferrisilicate for benzene oxidation to phenol with nitrous oxide.
저자 전환섭1, 이명우2, 남상성, 김성보, 이규완
소속 1한국화학(연), 2화학기술연구단 1팀
키워드 Ferrisilicate; Benzene hydroxylation; TPD; Nitrous oxide
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