Design and elaboration of new solid acids for the synthesis of butylacetate
Design and elaboration of new solid acids for the synthesis of butylacetate
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DOI：
10.1016/j.cattod.2004.04.046
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发表时间：
2004-07
期刊：
影响因子：
5.3
通讯作者：
W. Chu;Jianping Hu;Zaiku Xie;Qingling Chen
中科院分区：
文献类型：
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作者：
W. Chu;Jianping Hu;Zaiku Xie;Qingling Chen
采用共沉淀-浸渍法，设计并制备了新型高效固体酸催化剂，用于精细化工中醋酸与丁醇酯化反应合成乙酸丁酯。这项工作为酸催化反应提供了一个更清洁的过程。为了获得更好的性能，改进了沉淀法和煅烧法的制备参数。采用优化后的新型固体酸催化剂，酯化收率为93.3%，选择性为96.0%。通过XRD、n2吸附和TGA对样品进行表征，发现SO42−阴离子是活性结构中必不可少的元素。
New and efficient solid-acid catalysts were designed and prepared by the coprecipitation-impregnation method, for the esterification of acetic acid and butanol synthesizing the butylacetate ester in fine chemical industry, in which the conventional catalyst was sulfuric acid. This work resulted in a cleaner process for acid-catalyzed reaction. The preparation parameters in the precipitation step and in the calcination were improved for a better performance. With the optimized new solid-acid catalyst, a good ester yield of 93.3% was achieved with the selectivity of 96.0%. The samples were characterized by XRD, N2-adsorption and TGA measurements, the SO42−anion was essential in the active structure.