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化工学报  2015 

Me-OMS-1s分子筛催化叔丁基过氧化氢分解制备叔丁醇

DOI: 10.11949/j.issn.0438-1157.20150053, PP. 3965-3970

Keywords: 合成,Me-OMS-1s分子筛,催化,叔丁基过氧化氢,制备,叔丁醇

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Abstract:

采用静态水热法合成了Me-OMS-1s(Me=Mg,Co,Ni,Cu)分子筛催化剂,对合成的分子筛进行了X射线衍射和电感耦合等离子体发射光谱表征,并系统考察了反应温度(318~338K)、反应时间(0.5~6h)和催化剂用量(1.67~8.33mg·ml-1)对Me-OMS-1s催化叔丁基过氧化氢分解制备叔丁醇反应性能的影响。研究结果表明,合成的分子筛均为钡镁锰矿型(todorokite)氧化锰;在选择的多相催化反应条件下,Me-OMS-1s均有催化叔丁基过氧化氢歧化分解的反应活性,反应物叔丁基过氧化氢具有较高的转化率,产物叔丁醇的选择性均为100%。Me-OMS-1s催化叔丁基过氧化氢歧化分解的反应活性顺序为:Cu-OMS-1>Mg-OMS-1>Ni-OMS-1>Co-OMS-1。叔丁基过氧化氢的转化率随反应温度的升高、反应时间的延长和Me-OMS-1s用量的增大而显著增大。

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