| 2，4-二溴苯酚的合成实验 |
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| 引用本文： | 姚录田,王清宪,伦绍普,李文照.2，4-二溴苯酚的合成实验[J].山东化工,2009,38(4):16-17. |
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| 作者姓名： | 姚录田 王清宪 伦绍普 李文照 |
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| 作者单位： | 1. 山东寿光盐业公司,山东,潍坊,262700
2. 山东海化股份有限公司,山东,潍坊,262737 |
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| 摘 要： | 研究了以苯酚为原料，在乙醇一水介质中，进行溴化反应生成2，4-二溴苯酚的优化工艺条件。合成最佳反应条件为：苯酚、溴素与双氧水的物质的量比为1：0．98：0．98，演化反应温度为0—5℃；反应时间为2h；洗涤温度为40—50℃。优化条件下，收率可达96％，产品经质谱验证及气相色谱分析，百分含量为98．3％。
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| 关 键 词： | 2 4-二溴苯酚 乙醇-水 溴化 |
Trial on the Synthesis of 2,4-dibromophenol |
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| YAO Lu-tian,WANG Qing-xian,LUN Shao-pu,LI Wen-zhao.Trial on the Synthesis of 2,4-dibromophenol[J].Shandong Chemical Industry,2009,38(4):16-17. |
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| Authors: | YAO Lu-tian WANG Qing-xian LUN Shao-pu LI Wen-zhao |
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| Affiliation: | 1.Shouguang Salts Industry Company;Weifang 262700;China;2.Shandong Haihua Share Holding Co.;Ltd.;Weifang 262737;China |
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| Abstract: | The optimization of process conditions was sent out to synthesize 2,4 - dibromohenol with phenol as raw materials and in the ethanol - water media. The optimal reactive conditions were obtained as follows, the molar ration of phenol , bromine and hydrogen peroxide was 1 ： 0.98 ： 0.98, the reaction temperature of the bromination was 0 - 5℃, the reaction time,the washing temperature was 40 -50℃. The yield on charge was 96% under this condition. The product was analyzed and confirmed by MS spectrum and GC ,the mass concentration was 98.3%. |
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| Keywords: | 2 4-dibromophenol ethanol-water bromization |
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