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| 1 | 钛硅分子筛的合成及其催化氧化反应研究进展显示文摘综述了近几年关于钛硅分子筛的合成方法及催化氧化反应方面的研究进展。钛硅分子筛是一类由四配位钛原子取代分子筛骨架中的硅或铝所形成的杂原子分子筛。孤立的四配位钛原子使分子筛具有优异的催化氧化特性,尤其是与H2O2组成的氧化体系,对烃类的低温选择氧化反应具有良好的应用前景。不同孔道结构的钛硅分子筛对于反应物及产物的分子尺寸具有不同的选择性,TS-1、TS-2等微孔分子筛更适合小分子反应(如丙烯环氧化反应),而Ti-SBA-15、Ti-MCM-48等介孔分子筛则对较大分子的反应更有利(如苯乙烯环氧化反应)。 | 左轶 刘民 郭新闻 | 2015 | 石油学报(石油加工)2015，31，2： | 16 |
| 2 | Synthesis of Mesoporous Titanium Silicalite-1 with High Stability in Cyclohexanone Ammoximation显示文摘Mesoporous titanium silicalite-1(TS-1)was hydrothermally synthesized with the addition of triethanolamine(TEA)in the conventional process, and used in the cyclohexanone ammoximation in a continuous slurry reactor. The as-prepared TS-1 was characterized with X-ray diffraction(XRD), scanning electron microcopy(SEM), N_2 adsorption-desorption, Fourier transform infrared(FT-IR)spectroscopy, UV-Visible(UV-Vis)diffuse reflectance spectra and UV Raman spectroscopy. The results indicated that the addition of TEA resulted in the formation of mesopores and the slight increase of framework titanium in TS-1. TS-1 synthesized with the addition of TEA exhibited a higher stability in the cyclohexanone ammoximation than that without the addition of TEA, attributing to the increase of mesopore volumes and the slight increase of the framework titanium in TS-1. However, when the addition of TEA was up to TEA/SiO_2 ratio of 0.24, the crystallinity and framework titanium of TS-1 decreased markedly, and the average crystal sizes of TS-1 increased, with the catalyst stability becoming poor. | 王亚权 叶家鑫 王书海 林永杰 王守桂 刘伟 | 2016 | Transactions of Tianjin University2016，22，3： | 3 |
| 3 | Effect of Extra-Framework Titanium in TS-1 on the Ammoximation of Cyclohexanone显示文摘Titanium silicalite (TS-1) without and with extra-framework titanium have been prepared and TiO_2 is also prepared under the same conditions.All the samples are characterized with XRD,FT-IR,and UV–Vis.The effects of extra-framework titanium in TS-1 on the ammoximation of cyclohexanone have been studied in a continuous slurry reactor.The characterization results reveal that the extra-framework titanium exists as anatase.The catalytic evaluation results show that the anatase has a positive effect on the ammoximation of cyclohexanone by extending the catalytic life because it also exhibits some activity,while the conversion of cyclohexanone and the selectivity to cyclohexanone oxime are not influenced.The anatase TiO_2 does not catalyze H_2O_2 decomposition appreciably compared with TS-1 without extra-framework titanium.The results are very useful in guiding the TS-1 production. | Yaquan Wang Shuhai Wang Teng Zhang Jiaxin Ye Xiao Wang Dali Wang | 2017 | Transactions of Tianjin University2017，23，3： | 1 |
| 4 | 钛硅分子筛合成及其催化环己酮氨肟化反应研究进展显示文摘综述了基于钛硅分子筛/过氧化氢体系的环己酮液相氨肟化绿色工艺中钛硅分子筛TS-1的研究进展,包括传统水热合成工艺的优化、新合成方法的开发和增强TS-1传质的新策略。总结了钛硅分子筛催化环己酮氨肟化的反应机理、反应路径和催化剂再生方法。并对今后钛硅分子筛催化材料的开发和研究做出展望。 | 尹金鹏 梁晓航 孙丹宇 柴春玲 白立光 赵晓东 | 2023 | 化学推进剂与高分子材料2023，21，4： | 0 |
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