| 4-羟基苯甲醛及其溴代物固液平衡数据测定与关联 |
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| 引用本文： | 魏东炜,姜浩锡,袁继堂,井欣. 4-羟基苯甲醛及其溴代物固液平衡数据测定与关联[J]. 化工学报, 2003, 54(10): 1459-1462 |
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| 作者姓名： | 魏东炜 姜浩锡 袁继堂 井欣 |
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| 作者单位： | 天津大学石油化工技术开发中心，天津 300072 |
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| 摘 要： | 引 言香兰素 (vanillin) ,即 3 甲氧基 4 羟基苯甲醛 ,是一种广谱型香料 ,广泛应用于食品、化妆品等行业 ,需求日益增长 .近年来提出的以 4 羟基苯甲醛 (以下简称对醛或Ⅰ )为原料 ,经溴化、甲氧基化人工合成香兰素的新工艺[1～ 3 ] ,越来越受到人们的重视 .溴化反应是该工
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| 关 键 词： | 固液平衡 4-羟基苯甲醛 3-溴-4-羟基苯甲醛 3 5-二溴-4-羟基苯甲醛 关联 差示扫描量热法 |
| 文章编号： | 0438-1157(2003)10-1459-04 |
| 收稿时间： | 2002-06-26 |
| 修稿时间： | 2002-06-26 |
MEASURMENT AND CORRELATION OF SOLID-LIQUID EQUILIBRIA OF 4-HYDROXYBENZALDEHYDE AND ITS BROMO-COMPOUNDS |
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| WEI Dongwei,JIANG Haoxi,YUAN Jitang,JING Xin. MEASURMENT AND CORRELATION OF SOLID-LIQUID EQUILIBRIA OF 4-HYDROXYBENZALDEHYDE AND ITS BROMO-COMPOUNDS[J]. Journal of Chemical Industry and Engineering(China), 2003, 54(10): 1459-1462 |
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| Authors: | WEI Dongwei JIANG Haoxi YUAN Jitang JING Xin |
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| Abstract: | Solid-liquid equilibrium data for three binary systems: 4-hydroxybenzaldehyde/3-bromo-4- hydroxybenzaldehyde,4-hydroxybenzaldehyde/3,5-dibromo-4-hydroxybenzaldehyde,3-bromo-4-hydroxy-benzaldehyde/3,5-dibromo-4-hydroxybenzaldehyde were determined by differential scanning calorimetry and corresponding phase diagrams were given.λh equation and Wilson equation were used to correlate the data. It was shown that the results obtained by two models were both satisfactory. |
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| Keywords: | solid liquid equilibrium 4 hydroxybenzaldehyde 3 bromo 4 hydroxybenzaldehyde 3 5 dibromo 4 hydroxybenzaldehyde correlation differential scanning calorimetry |
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