| 第 32 卷第 3 期 |  | Vol. 32 No. 3 | | 2002 年 6 月 | Jun 2002 |
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所屬欄目：其它
環(huán)境友好催化合成鄰苯二甲酸二異戊酯 |
| 毛立新(岳陽(yáng)師范學(xué)院化工系; 湖南岳陽(yáng); 414000) |
| 摘 要：將無(wú)機鹽經(jīng) 4 5 0℃焙燒制得一種不溶于水的新型固體酸催化劑T-450 ,吸附吡啶的紅外光譜表明 ,催化劑表面形成了新的Bronsted酸中心。該催化劑對鄰苯二甲酸酐和異戊醇的酯化活性高 ,無(wú)副反應。并得到合成DIAP的環(huán)境友好催化新工藝條件如下 :異戊醇0.5mol,鄰苯二甲酸酐0.2mol,催化劑 1g ,反應溫度 185℃ ,反應時(shí)間 180min ,在此條件下收率可達 97%以上 ,且催化劑易回收 ,具有良好的重復使用性能。 |
| 關(guān)鍵詞：新固體酸; 催化酯化; 鄰苯二甲酸二異茂酯; 環(huán)境友好催化 |
| 中圖分類(lèi)號：TQ 文獻標識碼：A 文章編號：1009-9212(2002)03-00-0 |
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| Study on Environmental Friendly Catalysis of Synthesis of Diisooctyl Phthalate(DIAP) |
| Mao Li-xin（Department of Chemical Engineering; Yueyang Normal College; Yueyang 414000; China） |
| Abstract：A water insoluble soild acid catalyst "T-450" was prepared by calcination of a inorganic salt.IR spectra of pyridine absorbed on the surface showed that the catalyst had Bronsted acid sites.The catalyst had high activity and high selectivity in esterification of phthalic anhydride with isoamyl alcohol.The optimun condition for synthesis of DIAP was obtained as follows:isoamyl alcohol 0.5mol, phthalic anhydride 0.2mol, the catalyst 1.0g, reaction temperature 185℃, time 180min, the yield was above 97%. The ca... |
| Key words：solid acid; catalytic esterification; diisooctyl phthalate; environmental friendly catalysis |
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收稿日期：2002-0-
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