【摘要】 锡、镁、铁、铜和镍等不同金属掺杂的磷酸铝固体酸、杂多磷钨酸及其二氧化硅负载的催化剂用于乳酸正丁酯的合成,考察了各种反应条件的影响。结果表明,反应温度是重要的影响因素,反应温度以120℃较适宜。二氧化硅负载的杂多磷钨酸催化剂是较好的催化剂,而且负载的HPW/SiO2催化剂能大大减少杂多磷钨酸的用量。更多还原

【Abstract】 Heterogeneous catalysts,i.e.,metal phosphates and 12-tungstophosphoric acid(HPW),for synthesis of n-butyl lactate from lactic acid and n-butyl alcohol,were prepared and the effects of reaction condition investigated.The results showed that reaction temperature was an important influential factor,with optimal temperature of 120 ℃.Supported HPW was an appropriate catalyst for synthesis of n-butyl lactate and remarkably reduced the amount of HPW.更多还原