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【答案】应助回帖
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tiandoushi: 金币+10, 翻译EPI+1 2014-01-20 20:31:18
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Organic mesoporous catalyst (NpmimBF4-FDU) was prepared by ionic liquid (1 - hydroxypropyl 3 - methylimidazolium tetrafluoroborate, NpmimBF4) which was synthesized by methyl imidazole and 3 - chloro-1 - propanol and immobilized to the organic mesoporous material (FDU-15) . The structure of the catalyst was characterized by TGA, X-ray diffraction, infrared spectroscopy and transmission electron microscopy and the catalytic performance was investigated in propylene carbonate (PC) hydrolysis reaction .The results showed that the catalytic system at atmospheric pressure can effectively catalyze the hydrolysis of propylene carbonate to 1,2 - propanediol and the mass percentage content of the catalyst of 4%, temperature 80 ℃, reaction time 2 h are with a higher conversion rate of propylene carbonate. After a simple separation ,the catalyst can be reused five times with little activity changes. At the same time ,mechanism of hydrolysis of propylene carbonate to 1,2 - propanediol (PG) was discussed |
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