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Citation: QIAO Qing-Dong, LI Qi, LIU Guo-Min. Synthesis and Application of Ultrafine Molecular Sieve Ti-MCM-41[J]. Chinese Journal of Applied Chemistry, ;2002, 19(12): 1137-1141. shu

Synthesis and Application of Ultrafine Molecular Sieve Ti-MCM-41

1.
Department of Applied Chemistry, Liaoning University of Petroleum and Chemical Technology, Fushun 113001

Corresponding author: QIAO Qing-Dong,
Received Date: 30 April 2002
Available Online: 11 October 2002
Fund Project: 辽宁省自然科学基金资助项目(972052) (972052)

The ultrafine molecular sieve Ti-MCM-41 with molar ratios of Si to Ti being 30, 50 and 70 respectively were prepared from a 0.36 mol/L HCl solution at 40℃ and normal pressure. The molecular sieves were proved to have a regular skeleton structure with diameters ranged in 0.05 to 0.1 μm as determined by XRD, FTIR and SEM techniques. The catalytic activity of the molecular sieves Ti-MCM-41 in the oxidation of styrene by hydrogen peroxide was examined. The results showed that the styrene conversion was improved by increasing the titanium content, adding the promoter such as LiCl, K₂SO₄ and NaNO₃, using methanol as a solvent as well as extending the reaction time and raising the reaction temperature.
- ultrafine particle molecular sieve,
- Ti-MCM-41,
- styrene,
- catalytic oxidation
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