磁性纳米固体超强酸SO2-4/TiO2Fe3O4 催化α蒎烯异构化反应

摘要为了提高纳米固体酸催化剂与液体产物的分离性能，制备了磁性纳米固体超强酸SO2-4/TiO2Fe3O4催化剂，并用透射电子显微镜(TEM)、X射线衍射光谱(XRD)、红外光谱(IR)对催化剂进行结构表征。将其用于α蒎烯异构化反应，通过单因素试验和正交试验，得出α蒎烯异构化最适宜工艺条件为：反应温度120 ℃，催化剂用量2%，反应时间2 h，此时α蒎烯的转化率为9207%，莰烯的选择性为5896%。

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	吴春华
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关键词：磁性纳米固体超强酸 SO2-4/TiO2Fe3O4 α蒎烯异构化

Abstract： In order to increase the separation of nanosolid superacid from liquid product, magnetic nanosolid superacid SO2-4/TiO2Fe3O4 catalysts were prepared. The transmission electron microscopy (TEM), Xray diffraction spectra (XRD), infrared spectroscopy (IR) were used to characterize the structure of catalyst. The performance of the catalyst was investigated by isomerization reaction of αpinene. By using single factor method and orthogonal test methods, the best processing conditions of the isomerization of αpinene is obtained: reaction temperature is 120 ℃, the amount of catalyst is 2%, reaction time is 2 h. Under these processing conditions, the conversion of αpinene is 921% and the selectivity of camphene is 5896%.

Keywords： magnetic nanosolid superacid SO2-4/TiO2Fe3O4 pinene isomerization

Fund:

国家自然科学基金资助项目（30700632）；云南省自然科学基金资助项目（2006C0034Q）。

Corresponding Authors: 吴春华，电话：(0871)3863609，Email:kmwuchunhua@163com。研究论文文章编号：1004-9533(2011)03-0001-04

引用本文:

吴春华, 朱丹丹, 代学宇, 李朝贺.磁性纳米固体超强酸SO2-4/TiO2Fe3O4 催化α蒎烯异构化反应[J]. 化学工业与工程, 2011,28(3): 1-4

WU Chun-Hua, ZHU Dan-Dan, DAI Xue-Yu, LI Chao-He.Isomerization of αPinene over Magnetic NanoSolid Superacid SO2-4/TiO2Fe3O4 Catalysts[J]. Chemcial Industry and Engineering, 2011,28(3): 1-4

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[15]	LI Y, ZHANG X, SUN L, et al. Solid superacid catalyzed fatty acid methyl esters production from acid oil［J］. Appl Energy,2010, 87 (7): 2 369-2 373
[16]	JIANG T, ZHAO Q, LI M, et al. Preparation of mesoporous titania solid superacid and its catalytic property[J].J Hazard Mater.2008, 159(2/3):204-209
[17]	FAN G, SHEN M, ZHANG Z, et al. Preparation, characterization and catalytic properties of S2O2-8/ZrO2CeO2 solid superacid catalyst[J].J Rare Earths.2009, 27(3):437-442
[18]	YIN H, TAN Z, LIAO Y, et al. Application of SO2-4/TiO2 solid superacid in decontaminating radioactive pollutants[J].J Environ Radioact.2006, 87 (2):227-235
[19]	CHEN F, MA H, WANG B. Simple and effective synthesis of methoxydimethylbenzene from electrochemical oxidation of pxylene in methanol solvent catalyzed by SO2-4/ZrO2MxOy[J].J Hazard Mater.2009,162, (2/3):668-673
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[22]	YANG H, LU R, WANG L. Study of preparation and properties on solid superacid sulfated titaniasilica nanomaterials［J］. Mater Let, 2003, 57(5/6): 1 190-1 196
[23]	WANG J, YANG P, FAN M, et al. Preparation and characterization of novel magnetic ZrO2/TiO2/Fe3O4 solid superacid［J］. Mater Lett, 2007, 61(11/12): 2 235-2 238
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