| TS-1分子筛中非骨架钛物种(TiO2)x对丙烯环氧化反应的影响 |
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| 引用本文： | 张义华,郭新闻,王祥生,李钢,陈永英.TS-1分子筛中非骨架钛物种(TiO2)x对丙烯环氧化反应的影响[J].石油学报(石油加工),2000,16(5):41-46. |
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| 作者姓名： | 张义华 郭新闻 王祥生 李钢 陈永英 |
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| 作者单位： | 大连理工大学,碳资源综合利用开放实验室,辽宁,大连,116012 |
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| 基金项目： | 国家自然科学基金! ( 2 9792 0 71)，中国石油化工集团公司联合资助项目 |
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| 摘 要： | 研究了不同形态的ＴｉＯ２和不同硅钛比的ＴＳ－１分子筛在催化丙烯环氧化反应中的作用，分别用ＸＲＤ、ＵＶ－ＶＩＳ对它们的结构与形态进行了表征。结果表明，无定型或高分散ＴｉＯ２粒子能够促进Ｈ２Ｏ２分解，对丙烯环氧化非常不利；结晶完好的锐钛矿型与金红石型ＴｉＯ２对反应无影响，通过对非骨架钛物种物化性能的研究，进一步揭示了ＴＳ－１分子筛中所包含的非骨架钛物种的存在形态及其对丙烯环氧化反应的影响。
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| 关 键 词： | 氧化钛 TS－1分子筛 过氧化氢 丙烯 环氧化 |
EXTRAFRAMEWORK TITANIUM SPECIES(TiO2)x IN TS-1 ZEOLITE AND ITS EFFECT ON EPOXIDATION OF PROPYLENE |
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| ZHANG Yi-hua,GUO Xin-wen,WANG Xiang-sheng,LI Gang,CHEN Yong-ying.EXTRAFRAMEWORK TITANIUM SPECIES(TiO2)x IN TS-1 ZEOLITE AND ITS EFFECT ON EPOXIDATION OF PROPYLENE[J].Acta Petrolei Sinica (Petroleum Processing Section),2000,16(5):41-46. |
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| Authors: | ZHANG Yi-hua GUO Xin-wen WANG Xiang-sheng LI Gang CHEN Yong-ying |
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| Abstract: | The effects of titanium dioxide with different form and TS 1 zeolite of different n (SiO 2) / n (TiO 2) on epoxidation of propylene were studied.XRD and UV VIS spectra were used to study the structure and morphology of the samples.Amorphous or highly dispersed titanium dioxide can accelerate the decomposition of H 2O 2 and reduce the efficiency of H 2O 2. Anatase and rutile with high crystallinity are inactive to the decomposition of H 2O 2.According to this study,the form of extra framework titanium species and its effect on epoxidation of propylene were revealed. |
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| Keywords: | titanium oxide TS 1 zeolite hydrogen peroxide |
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