{"title":"Preparation and Performance of SAPO Molecular Sieve Solid-loaded Ionic Liquid Catalysts","authors":"Jingwen Wang, Hai Yue Wang, Lili Shi, Liying Guo, Rong-Rong Zheng","doi":"10.1134/S107042722211009X","DOIUrl":null,"url":null,"abstract":"<p>The ionic liquids [BMIM]Br/(ZnBr<sub>2</sub>)<sub>2</sub> and [HeMIM]Cl/(ZnBr<sub>2</sub>)<sub>2</sub> were prepared by N-methylimidazole, haloalkanes and zinc bromide in a one-step method with stirring at 80℃ for 24 h. Then the ionic liquids were solidified onto the SAPO molecular sieve to prepare the solidified ionic liquid catalysts SAPO-[BMIM]Br/(ZnBr<sub>2</sub>)<sub>2</sub>and SAPO-[HeMIM]Cl/(ZnBr<sub>2</sub>)<sub>2</sub>. The structure of the solidified ionic liquid catalysts was investigated. The solidified ionic liquid catalysts were used to catalyze the synthesis of propylene carbonate with CO<sub>2</sub> and propylene oxide. Meanwhile, the result show that synergistic catalytic effect between hydroxyl group of [HeMIM]Cl/(ZnBr<sub>2</sub>)<sub>2</sub> and the SAPO molecular sieve was more favorable for the reaction and increased the conversion, product selectivity and yield of propylene oxide.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"95 11","pages":"1693 - 1700"},"PeriodicalIF":0.7000,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Applied Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S107042722211009X","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
The ionic liquids [BMIM]Br/(ZnBr2)2 and [HeMIM]Cl/(ZnBr2)2 were prepared by N-methylimidazole, haloalkanes and zinc bromide in a one-step method with stirring at 80℃ for 24 h. Then the ionic liquids were solidified onto the SAPO molecular sieve to prepare the solidified ionic liquid catalysts SAPO-[BMIM]Br/(ZnBr2)2and SAPO-[HeMIM]Cl/(ZnBr2)2. The structure of the solidified ionic liquid catalysts was investigated. The solidified ionic liquid catalysts were used to catalyze the synthesis of propylene carbonate with CO2 and propylene oxide. Meanwhile, the result show that synergistic catalytic effect between hydroxyl group of [HeMIM]Cl/(ZnBr2)2 and the SAPO molecular sieve was more favorable for the reaction and increased the conversion, product selectivity and yield of propylene oxide.
期刊介绍：
Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.
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