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- W2950611877 abstract "Abstract The synthesis of Type 2 crystalline sodium aluminum titanate (T2CT) was optimized, and techniques for scale-up from 3 to 100 grams per batch were developed. On scaling to 100 g batches the surface area decreased from 207 to 160–170 m 2 g , but all other properties such as X-Ray diffraction patterns, elemental composition, ion exchange capacity, and stability remained the same. Four sources of aluminum, aluminum nitrate, aluminum chloride, aluminum isopropoxide, and aluminum butoxide, were used in the synthesis, and no apparent change in the material occurs. The composition, ion exchange capacity, and effective difiusivity for hexane vapor measured at 22 ° C for the T2CT was determined to be Na0.47Al0.02TiO2.265, 4.4 meq g , and 1.2 × 10−11 m 2 s , respectively. Calcination at 535 °C resulted in a slight decrease in the d0-spacing from 1.0 to 0.9 nm, and formation of the crystalline phase, Na0.23TiO2. At 600 °C the only crystalline phase remaining was Na0.23TiO2. When add exchanged T2CT was used as a support for a sulfided NiMo catalysts, the activity for hydrogenation of pyrene was 1.22(g Mo)−1s−1 for particle size of −100 mesh. For two commercial catalysts, Shell 324 and Amocat 1C, the activities were 1.2 and 1.45 (g Mo)−1 s−1 for −200 mesh, respectively. Effective diffusivities of 6.5 × 10−12 and 3.2 × 10−11 m 2 s for pyrene at 300 °C were obtained for Shell 324 and Amocat 1C commercial catalysts, respectively." @default.
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- W2950611877 date "2010-08-21" @default.
- W2950611877 modified "2023-09-26" @default.
- W2950611877 title "ChemInform Abstract: Synthesis and Catalytic Activity When Using a Type 2 Titanate." @default.
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- W2950611877 doi "https://doi.org/10.1002/chin.199236030" @default.
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