| 2步酯化法制备棕榈酸甲酯 |
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| 引用本文： | 周晓庆,王昌梅,张无敌,陈玉保,尹芳,李建昌,徐锐,刘士清.2步酯化法制备棕榈酸甲酯[J].云南民族大学学报(自然科学版),2012,21(4):249-251,255. |
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| 作者姓名： | 周晓庆 王昌梅 张无敌 陈玉保 尹芳 李建昌 徐锐 刘士清 |
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| 作者单位： | 云南师范大学,云南昆明,650092 |
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| 基金项目： | 云南省应用基础研究基金，云南省教育厅科学研究基金，云南省能源局，云南省工业与信息化委员会(2011292)联合资助项目 |
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| 摘 要： | 以棕榈酸和甲醇为原料,浓H2SO4为催化剂,采用2步酯化法制备棕榈酸甲酯.第1步反应的最佳条件为:温度为(65±2)℃,催化剂用量为棕榈酸质量的0.5%,甲醇用量为棕榈酸质量的80%,反应时间60 min,酯化率90.06%;第2步反应的最佳条件为:反应温度为(100±5)℃,甲醇流速为1.0 mL/min,反应时间为60 min,棕榈酸甲酯的酯化率为99.26%.
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| 关 键 词： | 棕榈酸 棕榈酸甲酯 2步酯化法 |
A Two-Step Esterification Method for Preparing Palmitic Acid Methyl Ester |
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| ZHOU Xiao-qing
,
WANG Chang-mei
,
ZHANG Wu-di
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CHEN Yu-bao
,
YIN Fang
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LI Jian-chang
,
XU Rui
,
LIU Shi-qing.A Two-Step Esterification Method for Preparing Palmitic Acid Methyl Ester[J].Journal of Yunnan Nationalities University:Natural Sciences Edition,2012,21(4):249-251,255. |
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| Authors: | ZHOU Xiao-qing WANG Chang-mei ZHANG Wu-di CHEN Yu-bao YIN Fang LI Jian-chang XU Rui LIU Shi-qing |
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| Institution: | (Yunnan Normal University,Kunming 650092,China) |
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| Abstract: | This research uses palmitic acid and methanol as raw materials and concentrated H2SO4 as the catalyst to produce palmitic acid methyl ester with a two-step esterification method.The best conditions of the first step are as follows: the temperature is(65±2) ℃,the catalyst dosage is 0.5%(based on the mass of palmitic acid),the amount of methanol is 80%(based on the mass of palmitic acid),the reaction time is 60min,the esterification ratio is 90.06%.The best conditions of the second step are as follows: the temperature is(100±5) ℃,the methanol flow rate is 1.0 mL/min,the reaction time is 60 min.The final esterification ratio of palmitic acid methyl ester is 99.26%. |
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| Keywords: | palmitic acid methyl palmitate two-step esterification method |
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