| N-β-羟乙基乙二胺合成工艺改进 |
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| 引用本文： | 郑学明,高攀,尚会建,赵叶,王少杰,王丽梅,康丽娜. N-β-羟乙基乙二胺合成工艺改进[J]. 精细石油化工, 2012, 29(4): 42-45 |
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| 作者姓名： | 郑学明 高攀 尚会建 赵叶 王少杰 王丽梅 康丽娜 |
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| 作者单位： | 河北科技大学化工学院,河北石家庄,050000 |
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| 摘 要： | 采用自制气液接触反应器,用反应-精馏耦合的方法合成羟乙基乙二胺,解决了目前环氧乙烷法合成羟乙基乙二胺过程中存在的副产物多、收率低的问题,有效地避免了副反应的发生。通过单因素实验,考察了各工艺参数对反应结果的影响,确定了当环氧乙烷通气速度为一定值100mL/min时,较适宜的工艺条件为:乙二胺含水量为25%;乙二胺进料速度为2.5mL/min;乙二胺进料温度为110℃;环氧乙烷导入温度为30℃。此反应条件下,羟乙基乙二胺的收率从传统工艺的50%提高到了94.73%,选择性为97.76%,乙二胺的单程转化率约为15%,节约了能耗,可以实现连续化生产。
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| 关 键 词： | N-β-羟乙基乙二胺 乙二胺 环氧乙烷 气液接触反应器 |
SYNTHESIS IMPROVEMENT OF AMINOETHYLETHANOLAMINE |
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| Zheng Xueming , Gao Pan , Shang Huijian , Zhao Ye , Wang Shaojie , Wang Limei , Kang Lina. SYNTHESIS IMPROVEMENT OF AMINOETHYLETHANOLAMINE[J]. Speciality Petrochemicals, 2012, 29(4): 42-45 |
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| Authors: | Zheng Xueming Gao Pan Shang Huijian Zhao Ye Wang Shaojie Wang Limei Kang Lina |
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| Affiliation: | (Hebei University of Science and Technology,Shijiazhuang 050000,Hebei,China) |
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| Abstract: | A set of reaction device using self-made gas liquid contactor was put forward to synthesize aminoethylethanolamine.The problems of low yield with more by-product was solved.Via single-factor experiments,some technological parameters were discussed.When the admission velocity of ethylene oxide was 150 mL/min,the optimum experiment conditions were obtained as follows: The moisture content of ethylenediamine was 25%,the feed rate of ethylenediamine was 2.5 mL/min,the feeding temperature of ethylenediamine was 110 ℃,the feed temperature of ethylene oxide was 30 ℃.Under these conditions,the yield of aminoethylethanolamine was increased from 50% to 94.73%.The selectivity reached 97.76% and the conversion per pass of ethylenediamine reached 15%.Continuous production could be carried out. |
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| Keywords: | aminoethylethanolamine ethylenediamine ethylene oxide gas-liquid contactor |
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