| 第 35 卷第 4 期 |  | Vol. 35 No. 4 | | 2005 年 8 月 | Aug 2005 |
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所屬欄目：有機合成原料
硝基苯催化加氫合成對氨基苯酚工藝研究 |
| 許玉芳; 蔡春(南京理工大學(xué)化工學(xué)院; 江蘇南京) |
| 摘 要：采用Pt/C作為催化劑對硝基苯選擇加氫合成對氨基苯酚進(jìn)行了研究,考察了溫度、酸度、反應時(shí)間、壓力、催化劑等因素對反應的影響,確定了反應的優(yōu)化條件。在反應溫度75℃、壓力2.45kPa、硫酸濃度13%、反應時(shí)間4h的條件下,用2%Pt/C催化加氫還原硝基苯可獲得較高質(zhì)量的產(chǎn)物對氨基苯酚。 |
| 關(guān)鍵詞：硝基苯; 催化加氫; 對氨基苯酚; Pt/C催化劑 |
| 中圖分類(lèi)號：O625.634 文獻標識碼：A 文章編號：1009-9212(2005)04-0053-03 |
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| Synthesis of p-Aminophenol by Catalytic Hydrogenation of Nitrobenzene over Pt / Active Carbon Catalyst |
| XU Yu-fang; CAI Chun （College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094; China） |
| Abstract：The synthesis of p-aminophenol by catalytic hydrogenation of nitrobenzene over Pt / active carbon catalyst was studied in the laboratory. Effects of some key parameters such as reaction temperature, pressure of hydrogen, pH value and reaction time was investigated. The optimum condition was as follow: reaction temperature 75℃, reaction time 4 h, pressure of hydrogen 2.45 kPa ,sulfuric acid concentration 13% and contents of catalyst 2%. |
| Key words：nitrobenzene; catalytic hydrogenation; p-aminophenol; Pt / active carbon catalyst |
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收稿日期：2004-12-03
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