ZrOCl_2·8H_2O: An Efficient and Cheap Catalyst for Esterification of Free Fatty Acids to Methyl Esters

查看全文 作　　者：Cai [1]Jie;Zhang [2]Qiuyun;Huang [2]Congmin;Zhou [2]Kaizhi;Ma [2]Peihua

机构地区：[1]School of Science, Guizhou University;[2]School of Chemistry and Chemical Engineering, Guizhou University

出　　处：《China Petroleum Processing & Petrochemical Technology》索引2014年第16卷第1期,共5页

基　　金：financially supported by the Chunhui Project of the Ministry of Education of China (Z122007) 摘　　要：The esterification of lauric acid with methanol could be efficiently catalyzed by ZrOCl2·8H2O, and this reaction was studied to develop a green method for biodiesel production. The influencing factors, such as amount of catalyst, reaction time and molar ratio of acid to methanol, were investigated. The results indicated that the ZrOCl2·8H2O catalyst showed high catalytic activity, and gave a 97.0% methyl laurate conversion rate under the following optimized conditions, viz.: a lauric acid/methanol molar ratio of 1:10, a catalyst dosage of 4%, and a reaction duration of 2 h at methanol refluxing temperature. The catalyst could be easily recovered while its activity could be well retained after three cycles. The ZrOCl2·8H2O catalyst also exhibited excellent catalytic activity for the esterification of different free long-chain fatty acids(including nonedible oils with high acid value) with different short carbon chain alcohols. Therefore, the ZrOCl2·8H2O catalyst has good potential for the synthesis of biodiesel from low-cost feedstocks such as waste vegetable oils and non-edible oils. 关键词：lauric acid inorganic salt ESTERIFICATION BIODIESEL

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ZrOCl_2·8H_2O: An Efficient and Cheap Catalyst for Esterification of Free Fatty Acids to Methyl Esters

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