摘要
报道了以柠檬酸改性的H-Beta沸石分子筛为催化剂,2-(4′-乙基苯甲酰基)苯甲酸(BE酸)脱水合成2-乙基蒽醌(2-EAQ)的新工艺,并对反应条件进行了优化。在优化的条件下,BE酸的转化率为99.5%,2-乙基蒽醌的选择性可达99.0%。
The dehydration of 2-（4′-ethylbenzoyl） benzoic acid （BE acid） into 2-ethylanthraquinone （2- EAQ） was investigated over H-Beta catalyst modified by citric acid. Different feed-in methods and the reaction conditions were studied in detail. Under optimized conditions, the conversion of BE acid could reach 99.5% , and the selectivity to 2-EAQ was up to 99.0%. The results show that the H-Beta zeolite can be considered as an efficient catalyst for the substitute of concentrate H2SO4 or oleum catalyst for the dehydration of BE acid to 2-ethylanthraquinone.
出处
《应用化学》
CAS
CSCD
北大核心
2006年第7期812-814,共3页
Chinese Journal of Applied Chemistry
基金
教育部新世纪优秀人才支持计划资助项目(NCET-04-0268)
