| 第 33 卷第 2 期 |  | Vol. 33 No. 2 | | 2003 年 4 月 | Apr 2003 |
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所屬欄目：其它
苯乙烯催化環(huán)氧化制備氧化苯乙烯 |
| 程德紅; 譚世語(yǔ); 張翠歌; 唐英; 彭良臣(重慶大學(xué)化工系; 400044) |
| 摘 要：以苯乙烯為原料 ,雙氧水為氧化劑 ,鉬酸銨為催化劑 ,氧化三丁錫為相轉移劑 ,硫酸鈉為引發(fā)劑 ,氯仿為溶劑制備氧化苯乙烯。研究了催化劑、相轉移劑、反應時(shí)間、氧化劑等因素的影響。實(shí)驗表明 :當加入 25ml苯乙烯、25ml雙氧水、25ml三氯甲烷、0.9g鉬酸銨、2.5ml氧化三丁錫和0.1g硫酸鈉時(shí) ,雙氧水轉化率為 86.96%,氧化苯乙烯收率為 74.42 %,反應的選擇性為 85.58%。 |
| 關(guān)鍵詞：苯乙烯; 氧化苯乙烯; 鉬酸銨; 氧化三丁錫 |
| 中圖分類(lèi)號：TQ241.2+1 文獻標識碼：A 文章編號：1009-9212(2003)02-0028-02 |
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| The Preparation of Styrene Oxide by the Epoxidation of Styrene |
| CHENG De-hong etc.（Chemical Engineering Department of Chongqing Univerisyt; Chongqing; 400044; China） |
| Abstract：The experiment employed styrene as row materials, hydrogen peroxide as an oxidant, ammonium molybdate as a catalyst, tri-n-butultinoxy as a phase-transfer reagent, sodium sulfate as a kindling, and chloroform as solvent to synthesize styrene oxide. The catalytic oxidation was studied by changing the dosage of catalyst, transfer reagent, reaction time and so on.It is shown that under the optimal conditions of 25ml of styrene, 25ml of hydrogen peroxide, 25ml of chloroform, 0.9g of ammonium molybdate, 2.5... |
| Key words：styrene; styrene oxide; ammonium molybdate; tri-n-butultinoxy |
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收稿日期：2002-11-28
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