| 哌嗪合成新工艺 |
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| 引用本文： | 刘荣杰,鲍金勇,张彦,田忠,卫志贤.哌嗪合成新工艺[J].化学工程,2006,34(6):68-71. |
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| 作者姓名： | 刘荣杰 鲍金勇 张彦 田忠 卫志贤 |
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| 作者单位： | 西北大学,化工学院,陕西,西安,710069 |
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| 基金项目： | 陕西省科技攻关资助项目(99K12-G4) |
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| 摘 要： | 以乙二胺为原料气固相催化合成哌嗪和三乙烯二胺,对实验用催化剂进行制备与考察,筛选出用CaC l2改性的HZSM-5型分子筛为催化剂,确定了最佳工艺条件为:反应温度为340℃,乙二胺的质量分数为40%,进料流率为0.40 mL/m in。结果表明:合成采用CaC l2改性的HZSM-5型分子筛,以乙二胺为原料合成哌嗪的工艺路线是可行的,在最佳工艺条件下,乙二胺的转化率为95%,哌嗪的收率为65%,三乙烯二胺的收率为25%。
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| 关 键 词： | 哌嗪 三乙烯二胺 乙二胺 HZSM-5型分子筛 |
| 文章编号： | 1005-9954（2006）06-0068-04 |
Novel process for synthesis of piperazine |
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| LIU Rong-jie,BAO Jin-yong,ZHANG Yan,TIAN Zhong,WEI Zhi-xian.Novel process for synthesis of piperazine[J].Chemical Engineering,2006,34(6):68-71. |
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| Authors: | LIU Rong-jie BAO Jin-yong ZHANG Yan TIAN Zhong WEI Zhi-xian |
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| Abstract: | A novel synthesis process of piperazine was studied.Piperazine and triethylenediamine were prepared with ethylenediamine as raw material and HZSM-5 zeolite modified with CaCl_2 was selected as best catalyst.The optimal conditions of temperature of about 340 ℃,ethylenediamine concentration of 40%,and input speed of 0.40 mL/min were determined.The result shows that piperazine synthesis with CaCl_2-modified HZSM-5 zeolite as catalyst and ethylenediamine as raw material is feasible.Under the optimal conditions,the conversion of ethylenediamine is 95%,the yield of piperazine is 65%,and the yield of triethyldiamine is 25%. |
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| Keywords: | piperazine triethyldiamine ethylenediamine HZSM-5 zeolite |
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