| 苯酚甲醇气相催化甲基化合成邻甲酚和2,6-二甲酚 |
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| 引用本文： | 刘智凌,王晓光,黄湘云,熊前政,朱孟兰,刘云林.苯酚甲醇气相催化甲基化合成邻甲酚和2,6-二甲酚[J].石油化工,1997(5). |
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| 作者姓名： | 刘智凌 王晓光 黄湘云 熊前政 朱孟兰 刘云林 |
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| 作者单位： | 湖南化工研究院精细化工所 |
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| 基金项目： | “八五”国家重点科技攻关项目 |
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| 摘 要： | 筛选苯酚甲醇气相催化甲基化合成邻甲酚和２，６－二甲酚的催化剂，以Ｖ２Ｏ５－Ｆｅ２Ｏ３系催化剂性能最佳，并通过添加助催化剂ＣｕＯ、ＰｂＯ２、Ｃｒ２Ｏ３和ＣｅＯ２等进行性能调变，进行工艺条件试验和寿命运转，反应温度３００～３５０℃，原料配比苯酚甲醇水为１４３（摩尔比）。空速２５０ｈ－１，苯酚转化率７０％，邻甲酚收率５０％，催化剂寿命＞８００ｈ。
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| 关 键 词： | 邻甲酚 2，6－二甲酚 苯酚 甲基化 |
Preparation of o Cresol and 2,6 Dimethyl Phenol by Phenol Methylation with Methanol |
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| Liu Zhiling,Wang Xiaoguang,Huang Xiangyun,Xiong Qianzheng,Zhu Menglan and Liu Yunling.Preparation of o Cresol and 2,6 Dimethyl Phenol by Phenol Methylation with Methanol[J].Petrochemical Technology,1997(5). |
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| Authors: | Liu Zhiling Wang Xiaoguang Huang Xiangyun Xiong Qianzheng Zhu Menglan and Liu Yunling |
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| Abstract: | This article presents a process for selecting a catalyst for preparing o cresol and 2,6 dimethyl phenol by phenol methylation with methanol.It is found that V 2O 5 is the better catalyst and the addition of proper amount of Cu,PbO 2,Cr 2O 3,CeO 2 can improve their activities.The effect of reaction conditions and the life of catalyst are also studied.Under the suitable reaction conditions of 300～350℃,PhOH∶MeOH∶H 2O=1∶4∶3(mol),the conversion of phenol reaches 70%,and yield of o cresol 50%,and the life of catalyst is >800h. o cresol,2,6 dimethyl phenol,phenol,methylationo cresol 50%,and the life of catalyst is >800h. |
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| Keywords: | o cresol 2 6 dimethyl phenol phenol methylation |
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