| 催化氨氧化合成2,6-二氯苯甲腈 |
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| 引用本文： | 刁锡华,杨兰英,王小永,王艳辉,李新颖,张江北. 催化氨氧化合成2,6-二氯苯甲腈[J]. 河北科技大学学报, 2000, 21(2): 4-8 |
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| 作者姓名： | 刁锡华 杨兰英 王小永 王艳辉 李新颖 张江北 |
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| 作者单位： | 1. 河北科技大学化学与制药学院,河北石家庄,050018
2. 石家庄化工厂,河北石家庄,050031 |
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| 基金项目： | 河北省自然科学基金资助项目（298198） |
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| 摘 要： | 研究了以２，６－二氯甲苯为原料，催化氨氧化合成２，６－二氟苯甲腈，制备和筛选了性能优良的 Ｐ－Ｖ－Ｍｏ－Ｃｒ－Ｋ－Ｏ／γ－Ａｌ２Ｏ３氨氧化反应催化剂。经过 ２４０ ｈ催化剂寿命的初步实验，催化剂活性、选择性不降低。在 φ３２ ｍｍ×３ ｍｍ单管反应器中进行了氨氧化反应条件优化研究，反应温度 ３６０ Ｃ，接触时间 １０ Ｓ，氧气对 ２，６－二氯甲苯物质的量比为３时，２，６－二氯甲苯转化率９２．２％，２，６－二氯苯甲腈收率７７．６％，纯度为９８．７％。
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| 关 键 词： | 2,6-二氯苯甲腈 氨氧化反应 催化剂 |
| 修稿时间： | 2000-03-09 |
Synthesis of 2,6-Dichlorobenzonitrile by Catalytic Ammoxidation |
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| DIAO Xi-hua,YANG Lan-ying,WANG Xiao-yong,WANG Yan-hui,LI Xin-ying,ZHANG Jiang-bei. Synthesis of 2,6-Dichlorobenzonitrile by Catalytic Ammoxidation[J]. Journal of Hebei University of Science and Technology, 2000, 21(2): 4-8 |
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| Authors: | DIAO Xi-hua YANG Lan-ying WANG Xiao-yong WANG Yan-hui LI Xin-ying ZHANG Jiang-bei |
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| Abstract: | A Process for producing 2, 6-dichlorobenzonitrile by catalytic ammoxidation of 2, 6- dichlorotoluene as raw material is studied. The P-V-Mo-Cr-K--O/r-Al2O3 ammoxidation reaction catalysts with good function are preparated and choisen. After 240 h preliminary life test of the catalysts indicates that their activity and selectivity don't decreased. In φ32 mm × 3 mm single tube reactor the optimizations of ammoxidation reaction condition are studied; the conversion of 2, 6-dichlorotoluene is 96. 4%, the yild of 2, 6- dichlorobenzonitrile is 77. 6%,the purity of 2, 6-dichlorobenzonitrile is 98. 6 %,wherein the reaction temperature is 360 ℃,the contact time is 10 s and the molar ratio of oxigen to 2,6-dichlorotoluene is 3. |
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| Keywords: | 2 6-dichlorobenzonitrile ammoxidation reaction catalyst |
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