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Chemcial Industry and Engineering 2021, Vol. 38 Issue (1) :27-35    DOI: 10.13353/j.issn.1004.9533.20200319
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Synthesis of Propyl Gallate Catalyzed by Resin and Process Optimization
Dong Gang1,2, Liu Lanxiang1, Sun Yanlin2, Li Kun1, Zhang Wenwen1, Liu Yiwen3, Chen Qinglong3, Zhang Hong1
1. Research Institute of Resources Insects, Chinese Academy of Forestry, Research Center of Engineering and Technology on Characteristic Forest Resources, State Administration of Forestry and Grassland, Kunming 650223, China;
2. College of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China;
3. Wufeng Chicheng Biotechnology CO., LTD., Research Center of Engineering and Technology on Efficient Cultivation and Intensive Processing for Gallnut of Forestry and Grassland Administration of China, Hubei Yichang 443413, China

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Abstract As a heterogeneous catalyst, cation exchange resins are widely used in organic synthesis reactions. Preparation of highly active resin catalysts for the synthesis of propyl gallate by screening of resin types, activated acid types, activated acid concentration, etc. The results showed that when the resin catalyst dosage was 4.06% of the total mass of the reaction raw materials, the reaction time was 20 h, the yield of propyl gallate was stable at about 91.0%, and the purity of propyl gallate was greater than 99.9% that measured by high performance liquid phase. The resin catalyst could be reused more than 40 times through regeneration, and its effectively reduced the problem of solving acid discharge. Compared with traditional methods, the method in this paper could better meet the new industrial requirements of high catalytic efficiency, environmental protection and economy.
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Articles by authors
Dong Gang
Liu Lanxiang
Sun Yanlin
Li Kun
Zhang Wenwen
Liu Yiwen
Chen Qinglong
Zhang Hong
Keywordsresin;   catalyst;   heterogeneous;   synthesis;   propyl gallate     
Received 2020-04-28;
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Dong Gang, Liu Lanxiang, Sun Yanlin, Li Kun, Zhang Wenwen, Liu Yiwen, Chen Qinglong, Zhang Hong.Synthesis of Propyl Gallate Catalyzed by Resin and Process Optimization[J]  Chemcial Industry and Engineering, 2021,V38(1): 27-35
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