| 第 36 卷第 5 期 |  | Vol. 36 No. 5 | | 2006 年 10 月 | Oct 2006 |
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所屬欄目：功能材料
I_2-AlCl_3催化合成四溴苯酐的工藝研究 |
| 熊鷹; 劉平樂(lè ); 夏俊; 羅和安(湘潭大學(xué)化工學(xué)院; 湖南湘潭) |
| 摘 要：針對國內四溴苯酐生產(chǎn)現狀,在對溴化反應過(guò)程機理分析的基礎上,對反應過(guò)程進(jìn)行優(yōu)化,得到了較優(yōu)的反應條件及操作過(guò)程:以I2、AlCl3作為反應的復合催化劑,用量為苯酐的2%,采用分段控溫緩慢加溴的操作方式,最高反應溫度140℃,反應時(shí)間5￣6h,四溴苯酐的收率為96%,熔點(diǎn)276.3￣277.2℃,硫酸含量0.13%。 |
| 關(guān)鍵詞：苯酐; 溴; 發(fā)煙硫酸; 復合催化劑; 四溴苯酐 |
| 中圖分類(lèi)號：TQ314.24+8 文獻標識碼：A 文章編號：1009-9212(2006)05-0057-03 |
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| Parameter Optimization for Tetrabromophthalic Anhydride Production |
| XIONG Ying; LIU Ping-le; XIA Jun; LUO He-an （College of Chemical Engineering; Xiangtan University; Xiangtan 411105; China） |
| Abstract：In allusion to domestic production status of tetrabromophthalic anhydride(TBPA),parameter optimization was carried out based on the analysis of the mechanism of bromization,and optimum reaction condition and operation process was obtained.The yield of TBPA can be reached to 96% by using I2 and AlCl3 as composite catalyst in a mass ratio of 2% to phthalic anhydride.The temperature was controlled in section and the bromine was added slowly,and the reaction would be finished in 5~6 hours at the highest tempera... |
| Key words：phthalic anhydride; bromine; oleum method; composite catalyst; Tetrabromophthalic Anhydride |
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基金項目：湖南省教育廳資助項目(04C638)
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收稿日期：2006-08-18
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