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  • 1 Instituto de Ciencia de Materiales de Sevilla (CSIC), Americo Vespucio 49, 41092, Sevilla, Spain
  • | 2 Instituto de Recursos Naturales y Agrobiología (CSIC), Apdo. 1052, 41080, Sevilla, Spain
  • | 3 Institute of Inorganic Chemistry AV CR, v.v.i., 250 68, Husinec-Rez, Czech Republic
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Abstract

Acid leaching of vermiculite is an interesting procedure to prepare high surface area porous silica. Thermal behaviour of unground and ground vermiculite leached with HCl solutions has been studied by TG, DTA, ETA and high temperature XRD. Important differences have been observed in the thermal behaviour of unground and ground vermiculite after the acid treatments. Thus, for the acid-treated unground vermiculite, dehydrated vermiculite, enstatite and cristobalite were formed during the heating, while for the acid-treated ground vermiculite only iron oxides and cristobalite phases were observed. Structural modifications due to acid treatment were responsible for changes in the transport properties determined by ETA for the vermiculite samples.

  • 1. Harben, PW. Industrial mineral handy book. London: Industrial Mineral Division, Metal Bulletin PLC; 1995.

  • 2. Dellisanti, F, Valdre, G. Study of structural properties of ion treated and mechanically deformed commercial bentonite. Appl Clay Sci. 2005;28: 1–4 233244. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 3. Franco, F, Cecila, JA, Perez-Maqueda, LA, Perez-Rodriguez, JL, Gomes, CSF. Particle-size reduction of dickite by ultrasound treatments: effect on the structure, shape and particle-size distribution. Appl Clay Sci. 2007;35: 1–2 119127. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4. Kameda, J, Saruwatari, K, Tanaka, H. H2 generation during dry grinding of kaolinite. J Colloid Interface Sci. 2004;275: 1 225228. .

  • 5. Mendelovici, E. Selective mechanochemical reactions on dry grinding structurally different silicates. J Mater Sci Lett. 2001;20: 1 8183. .

  • 6. Stepkowska, ET, Perez-Rodriguez, JL, de Haro, MCJ, Sanchez-Soto, PJ, Maqueda, C. Effect of grinding and water vapour on the particle size of kaolinite and pyrophyllite. Clay Miner. 2001;36: 1 105114. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. Subrt, J, Perez-Maqueda, LA, Criado, JM, Real, C, Bohacek, J, Vecernikova, E. Preparation of nanosized hematite particles by mechanical activation of goethite samples. J Am Ceram Soc. 2000;83: 2 294298. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8. Uhlik, P, Sucha, V, Eberl, DD, Puskelova, L, Caplovicova, M. Evolution of pyrophyllite particle sizes during dry grinding. Clay Miner. 2000;35: 2 423432. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. Yariv, S, Lapides, I. The effect of mechanochemical treatments on clay minerals and the mechanochemical adsorption of organic materials onto clay minerals. J Mater Synth Process. 2000;8: 3–4 223233. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 10. Wiewiora, A, Perez-Rodriguez, JL, Perez-Maqueda, LA, Drapala, J. Particle size distribution in sonicated high- and low-charge vermiculites. Appl Clay Sci. 2003;24: 1–2 5158. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11. Perez-Maqueda, LA, De Haro, MCJ, Poyato, J, Perez-Rodriguez, JL. Comparative study of ground and sonicated vermiculite. J Mater Sci. 2004;39: 16–17 53475351. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Maqueda, C, Perez-Rodriguez, JL, Subrt, J, Murafa, N. Study of ground and unground leached vermiculite. Appl Clay Sci. 2009;44: 1–2 178184. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 13. Okada, K, Arimitsu, N, Karneshima, Y, Nakajima, A, MacKenzie, KJD. Solid acidity of 2:1 type clay minerals activated by selective leaching. Appl Clay Sci. 2006;31: 3–4 185193. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14. Suquet, H, Franck, R, Lambert, J, Elsass, F, Marcilly, C, Chevalier, S. Catalytic properties of two pre-cracking matrices: a leached vermiculite and a Al-pillared saponite. Appl Clay Sci. 1994;8: 5 349364. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 15. Temuujin, J, Okada, K, MacKenzie, KJD. Preparation of porous silica from vermiculite by selective leaching. Appl Clay Sci. 2003;22: 4 187195. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16. Maqueda, C, Romero, AS, Morillo, E, Perez-Rodriguez, JL, Lerf, A, Wagner, FE. The behavior of Fe in ground and acid-treated vermiculite from Santa Olalla, Spain. Clays Clay Miner. 2008;56: 3 380388. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17. Maqueda, C, Romero, AS, Morillo, E, Perez-Rodriguez, JL. Effect of grinding on the preparation of porous materials by acid-leached vermiculite. J Phys Chem Solids. 2007;68: 5–6 12201224. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 18. Balek, V, Perez-Maqueda, LA, Poyato, J, Cerny, Z, Ramirez-Valle, V, Buntseva, IM, et al. Effect of grinding on thermal reactivity of ceramic clay minerals. J Therm Anal Calorim. 2007;88: 1 8791. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19. Franco, F, Perez-Maqueda, LA, Perez-Rodriguez, JL. The influence of ultrasound on the thermal behaviour of a well ordered kaolinite. Thermochim Acta. 2003;404: 1–2 7179. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 20. Horvath, E, Frost, RL, Mako, E, Kristof, J, Cseh, T. Thermal treatment of mechanochemically activated kaolinite. Thermochim Acta. 2003;404: 1–2 227234. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 21. Perez-Maqueda, LA, Perez-Rodriguez, JL, Scheiffele, GW, Justo, A, Sanchez-Soto, PJ. Thermal analysis of ground kaolinite an pyrophyllite. J Therm Anal. 1993;39: 8–9 10551067.

    • Search Google Scholar
    • Export Citation
  • 22. Perez-Rodriguez, JL, Duran, A, Sanchez-Jimenez, PE, Franquelo, ML, Perejon, A, Pascual-Cosp, J, et al. Study of the dehydroxylation–rehydroxylation of pyrophyllite. J Am Ceram Soc. 2010;93: 8 23922398. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 23. Sanchez-Soto, PJ, Perez-Rodriguez, JL. Thermal analysis of pyrophyllite transformations. Thermochim Acta. 1989;138: 2 267276. .

  • 24. Lapides, I, Yariv, S. The effect of mechanochemical treatments of sepiolite with CsCl on the calcination products. J Therm Anal Calorim. 2010;99: 3 855860. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 25. Clausen, P, Signorelli, M, Schreiber, A, Hughes, E, Plummer, CJG, Fessas, D, et al. Equilibrium desorption isotherms of water, ethanol, ethyl acetate, and toluene on a sodium smectite clay. J Therm Anal Calorim. 2009;98: 3 833841. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 26. Balek, V, Perez-Rodriguez, JL, Perez-Maqueda, LA, Subrt, J, Poyato, J. Thermal behaviour of ground vermiculite. J Therm Anal Calorim. 2007;88: 3 819823. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 27. Perez-Maqueda, LA, Balek, V, Poyato, J, Perez-Rodriquez, JL, Subrt, J, Bountsewa, IM, et al. Study of natural and ion exchanged vermiculite by emanation thermal analysis, TG, DTA and XRD. J Therm Anal Calorim. 2003;71: 3 715726. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 28. JCPDS PDF-2 database ICfDD, Newtown Square, PA, USA release 54, 2004.

  • 29. ICSD database FIZ Karlsruhe G, release 2010/2, 2010.

  • 30. Music, S, Krehula, S, Popovic, S. Effect of HCl additions on forced hydrolysis of FeCl3 solutions. Mater Lett. 2004;58: 21 26402645. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 31. Ohyabu, M, Ujihira, Y. A study of the precipitates formed by hydrolysis of Fe(III) nitrate solution containing Na+ and SO 4 2-. J Inorg Nucl Chem. 1981;43: 8 19481949. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 32. Shao, HF, Qian, XF, Yin, J, Zhu, ZK. Controlled morphology synthesis of beta-FeOOH and the phase transition to Fe2O3. J Solid State Chem. 2005;178: 10 31303136. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 33. Zhang, LY, Feng, J, Xue, DS. An investigation of thermal decomposition of beta-FeOOH nanowire arrays assembled in AAO templates. Mater Lett. 2007;61: 6 13631367. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 34. Perez-Rodriguez, JL, Maqueda, C, Murafa, N, Subrt, J, Balek, V, Pulisova, P, et al. tudy of ground and unground leached vermiculite. II Thermal behaviour of ground acid-treated vermiculite. Appl Clay Sci. 2011;51: 3 274282. .

    • Crossref
    • Search Google Scholar
    • Export Citation