第 45 卷第 1 期 |  | Vol. 45 No. 1 | 2015 年 2 月 | Feb 2015 |
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所屬欄目:功能材料
季銨鹽復合型催化劑合成4-氨基二苯胺的研究 |
周志國1,張建平1*,王正方2
(1. 山東海成石化工程設計有限公司,山東 淄博 255400;2. 淄博職業(yè)學(xué)院,山東 淄博 255314) |
摘 要:采用不同的季銨鹽復合型相轉移催化劑,通過(guò)調整催化劑用量、改變反應物苯胺與硝基苯配比、控制反應溫度和脫水量,優(yōu)化了合成4-氨基二苯胺中間產(chǎn)物的反應條件。結果表明在n(催化劑)∶n(硝基苯)=1.5∶1.0,n(苯胺)∶n(硝基苯)=6∶1、溫度75℃、壓力9.3 kPa反應條件下,硝基苯的轉化率超過(guò)99%,反應選擇性超過(guò)96%。 |
關(guān)鍵詞:4-氨基二苯胺;反應條件;季銨堿催化劑 |
中圖分類(lèi)號:TQ245 文獻標識碼:A 文章編號:1009-9212(2015)01-0069-04 |
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Research of Reaction Condition on Catalytic Synthesis 4-Aminodiphenylamine Intermediate Product Used Composite Phase Transfer Catalyst |
ZHOU Zhi-guo1, ZHANG Jian-ping1*, WANG Zheng-fang2
(1. Shandong Haicheng Petrochemical Engineering Design Co., Ltd., Zibo 255400; 2. Zibo Vocational Institute, Zibo 255314, China) |
Abstract:The reaction conditions for the preparation of 4-aminodiphenylamine intermediate product were evaluated including different kind of quaternary ammonium alkali as catalyst, the amount of catalyst, reactants ratio of aniline and nitrobenzene, reaction temperature and quantity of water from dehydration. The results showed that the conversion of nitrobenzene exceeded 99% while the selectivity of the reaction reached more than 96%, under the reaction condition of an catalyst/nitrobenzene molar ratio of 1.5:1, an aniline/nitrobenzene molar ratio of 6:1, reaction temperature of 75℃ and pressure of 9.3 kPa. |
Key words:4-aminodiphenylamine, reaction condition, quaternary ammonium alkali catalyst |
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作者簡(jiǎn)介:周志國(1971-),男,山東淄博人,工程師,主要從事工藝開(kāi)發(fā)及設計工作。
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聯(lián) 系 人:張建平,工程師,主要從事工藝開(kāi)發(fā)及設計工作(E-mail:17705336568@189.cn)。
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收稿日期:2014-12-10
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