| 苯甲酸釜残液的回收利用 |
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| 引用本文： | 丁丽,郭晓莹.苯甲酸釜残液的回收利用[J].青岛科技大学学报,2009,30(6):502-504. |
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| 作者姓名： | 丁丽 郭晓莹 |
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| 作者单位： | 青岛科技大学化工学院,山东青岛266042 |
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| 摘 要： | 以反应代替分离,将膏状的苯甲酸釜残液碱化后和氯化苄反应,采用相转移催化技术合成苯甲酸苄酯来加以应用。考察了催化剂用量、釜残液(以苯甲酸钠计)与氯化苄的物质的量的比和反应时间对收率的影响。结果表明,反应温度140℃,n(苯甲酸钠)∶n(氯化苄)=1∶1.05,催化剂质量分数3.5%,反应时间3 h条件下,酯化率可达94.5%。
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| 关 键 词： | 苯甲酸生产残液 相转移催化剂 苯甲酸苄酯 |
Recycling of Benzoic Acid Residua |
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| DING Li,GUO Xiao-ying.Recycling of Benzoic Acid Residua[J].Journal of Qingdao University of Science and Technology:Natutral Science Edition,2009,30(6):502-504. |
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| Authors: | DING Li GUO Xiao-ying |
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| Abstract: | Benzyl benzoate was synthesized using benzoic acid paste residua and benzyl chloride as raw material at the presence of TEA(phase transferring catalyst).The effects of catalyst amount,mole ratio of sodium benzoate and benzyl chloride,reaction time on the esterification rate were studied.The yield was up to 94.5% under the condition of 140 ℃,n(sodium benzoate)∶n(benzyl chloride)= 1∶1.05,catalyst amount of 3.5% and reaction time of 3 h. |
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| Keywords: | benzoic acid residua phase transfer catalyst benzyl benzoate |
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