郭新闻,刘民,高健,王祥生.气固相反应温度对Ti-ZSM-5物化性能的影响[J].分子催化,2006,(5):455-457 |
气固相反应温度对Ti-ZSM-5物化性能的影响 |
Effect of Gas-Solid Reaction Temperature on the Physico-Chemical Properties of Ti-ZSM-5 Zeolite |
投稿时间:2005-12-16 |
DOI: |
中文关键词: 钛硅分子筛 苯酚 羟基化 温度 |
英文关键词:TS-1 Ti-ZSM-5 |
基金项目:国家重点基础研究发展计划(973计划);教育部跨世纪优秀人才培养计划 |
郭新闻 刘民 高健 王祥生 |
大连理工大学催化化学与工程系,精细化工国家重点实验室,大连116012 |
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中文摘要: |
1983年美国专利US4,410,501报道了钛硅沸石的合成,其独特的催化氧化性能引起了人们极大的关注。但因模板剂四丙基氢氧化铵价格昂贵,而且水热合成条件苛刻,重复性差,限制了其工业应用.因此,人们陆续开发了许多廉价的合成钛硅沸石类催化剂的方法.但是,廉价体系得到的TS-1的催化性能普遍逊色于经典法得到的样品.气固相法是另一种制备钛硅沸石的方法, |
英文摘要: |
With B-ZSM-5 zeolite from modified hydrothermal synthesis as precursor, Ti-ZSM-5 samples were synthesized under different gas-solid reaction temperature. The samples were characterized with TG, XRD, XRF, FT IR, UV-Vis and so on. The phenol hydroxylation properties of Ti-ZSM-5 were also investigated. The results show that, the gas-solid reaction temperature affects the type and amount of titanium in Ti-ZSM-5. Ti-ZSM-5 samples from gas-solid synthesis with the gas-solid reaction temperature from 423 K to 873 K show similar properties in phenol hydroxylation. The effect of extra-framework titanium on phenol hydroxylation properties is neglectable. |
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