This article presents the results of a study of three commercial titanosilicalites (TS-1, TS-1N, TS-1G) with general formula [(Ti_xSi_12-x)O₂₄] × wH₂O (MFI-type) using the X-ray study (XRPD), IR spectroscopy (FT-IR), X-ray absorption spectroscopy (EXAFS/XANES), differential scanning calorimetry (DSC), Brunauer–Emmett–Teller method (BET), UV-VIS spectroscopy. It was established that the samples contain amorphous oxygenous titanium-containing formations, which does not allow the use of quantitative elemental methods of analysis to determine the content of titanium ions in the framework. The full-profile Rietveld method was used to determine the silicate modules (Si/Ti = 53 for TS-1, Si/Ti~47 for TS-1N and TS-1G) and the coordination numbers of titanium: CNTi~5.0, CNTi = 4.5, CNTi>5.0, respectively in the structures of TS-1, TS-1N, TS-1G. The distribution of Ti⁴⁺ ions over the sites of the MFI-type structure with the orthorhombic symmetry (space group Pnma, z = 8) were found: T2, T6, T10 for TS-1, T8, T10, T5 (unlikely) for TS-1N (Т10 double positions in sinusoidal channels) and Т2, Т10, Т12, Т9 (unlikely) for TS-1G (Т10 and Т12 double positions in sinusoidal channels). The best indicators of the allyl chloride epoxidation in the epichlorohydrin process at 30 °C were achieved for TS-1N and TS-1G. A higher yield of acetaldehyde was found on the TS-1(75) sample (TS-1 sample annealed at 75 °C for 2 h) at 290 °C (non-oxidative ethanol conversion), and ethylene - on the TS-1G(500) sample (TS-1G annealed at 500 °C for 2 h) at 700 °C (propane conversion). The revealed correlations between the catalytic parameters and the characteristics of the samples studied were discussed.

本文介绍了三种具有通式 [(Ti _x Si _12-x )O ₂₄ ] ×  w H _{2 的}商业钛硅酸盐（TS-1、TS-1N、TS-1G）的研究结果O（MFI 型）使用 X 射线研究 (XRPD)、红外光谱 (FT-IR)、X 射线吸收光谱 (EXAFS/XANES)、差示扫描量热法 (DSC)、Brunauer-Emmett-Teller 方法 (BET) ), 紫外可见分光光度计。已确定样品包含无定形含氧含钛地层，这不允许使用定量元素分析方法来确定框架中钛离子的含量。全剖面 Rietveld 方法用于确定硅酸盐模块（TS-1 的 Si/Ti = 53，TS-1N 和 TS-1G 的 Si/Ti~47）和钛的配位数：CNTi~5.0，CNTi = 4.5，CNTi>5.0，分别在TS-1、TS-1N、TS-1G的结构中。Ti ⁴⁺的分布发现在具有正交对称性（空间群 Pnma，z = 8）的 MFI 型结构位点上的离子：TS-1 的T2、T6、T10、TS-1N 的T8、T10、T5（不太可能）（Т10正弦通道中的双位置）和Т2、Т10、Т12、 Т9（不太可能）对于 TS-1G（Т10 和 Т12正弦通道中的双重位置）。对于 TS-1N 和 TS-1G，在 30 °C 环氧氯丙烷工艺中烯丙基氯环氧化的最佳指标达到了。在 TS-1(75) 样品（TS-1 样品在 75°C 下退火 2 小时）在 290°C（非氧化乙醇转化）上发现了更高的乙醛收率，在 TS-1G 上发现了乙烯 - (500) 样品（TS-1G 在 500°C 下退火 2 小时）在 700°C（丙烷转化）。讨论了催化参数与所研究样品的特征之间所揭示的相关性。