Separation of argon and oxygen by adsorption on a titanosilicate molecular sieve
| Autor: | Ansón Casaos, Alejandro, Kuznicki, S. M., Haastrup, T., Kuznicki, T., Lin, C. C. H., Konya, G., Dunn, B. C., Eyring, E. M., Hunter, D. |
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| Přispěvatelé: | Ansón Casaos, Alejandro [0000-0002-3134-8566], Ansón Casaos, Alejandro |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 2 Figures.-- Presented at NanoSpain 2008, NanoIberian Conference, 14-18 April 2008, Braga-Portugal. The separation of argon and oxygen is one of the important processes in the industrial purification of the constituents of air, and is also one of the most difficult. The basic methods used to effect this separation include cryogenic distillation and selective adsorption. Several titanosilicates, including ETS-4, ETS-10, and other structures based on octahedral titanium units, have been recognized for their adsorptive and molecular sieving properties. ETS-4, in particular, has been noted for its ability to differentiate molecules by size, including the commercial separation of N2 from methane at high pressure. In the present communication, we examine the separation of O2 and Ar at room temperature using Ba-RPZ, a new synthetic titanosilicate molecular sieve. RPZ is synthesized by mixing sodium silicate, NaOH and TiCl3 with potassium chloride. From X-ray powder diffraction analysis, it is clear that, like ETS-4, RPZ (Reduced Pore Zorite) is structurally related to the mineral zorite. |
| Databáze: | OpenAIRE |
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