| 第 34 卷第 6 期 |  | Vol. 34 No. 6 | | 2004 年 12 月 | Dec 2004 |
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所屬欄目：其它
Fe-Al復合催化合成對氯苯胺 |
| 周瑩; 葉翠層; 李水芳; 李林; 孫漢洲(中南林學(xué)院應用化學(xué)研究所; 湖南株洲) |
| 摘 要：研究了Fe Al復合催化劑的制備及其催化水合肼選擇性還原硝基制備鄰氯苯胺的條件,考察8種離子對催化劑活性的影響。優(yōu)惠工藝條件:反應溫度為70℃,水合肼用量為n(對氯硝基苯)∶n(水合肼)=1.0∶2.0,對氯苯胺的收率為84.6%。Pb2+能使催化劑中毒,Cu+、Mg2+和Ba2+三種金屬離子鈍化了催化劑的催化活性,Na+、Ni2+、Cu2+和SO42-四種離子對催化劑的催化活性沒(méi)有影響。 |
| 關(guān)鍵詞：Fe-Al復合催化劑; 水合肼; 對氯苯胺; 對氯硝基苯; 還原; 選擇性 |
| 中圖分類(lèi)號：TQ246.1 文獻標識碼：A 文章編號：1009-9212(2004)06-0058-04 |
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| Synthesis of 4-Chloroaniline using Fe-Al Complex as Catalyst |
| ZHOU Ying; YE Cui-ceng; LI Shui-fang; LI Lin; SUN Han-zhou （Research Institute of Applied Chemistry; Central South Forestry University; Zhuzhou 412006; China） |
| Abstract：4-Chloroaniline,which is an important chemical intermediate,was synthesized from 4-Chloroaniline with hydrazine hydrate by using Fe-Al complex as catalyst. The optimum reactical conditions was as follow: reaction temperature 70 ℃, n(4-chloro-1-nitrobenzene)∶n(hydrazine hydrate)= 1.0∶2.0,The yield of 4-chloroaniline is 84.6%.The results showed that the Pb~(2+) has toxicity ,and Cu~(+ )、Mg~(2+) and Ba~(2+) have passivation,and Na~(+) 、Ni~(2+) 、Cu~(2+)和SO_(42) have no influence to zhe action of this catalyst ... |
| Key words：Fe-Al complex catalyst; hydrazine hydrate; 4-chloroaniline; 4-chloro-1-nitrobenzene; reduction; selectivity |
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收稿日期：2004-06-26
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