Disturbance of Thermodynamic Equilibrium of the Quartz-Water System and Silica Separation from the Liquid Phase at a Small Temperature Gradient

Alekseyev VA, Medvedeva LS, Starshinova NP. Paradoxical transformation of equilibrium quartz- water system into non-equilibrium one. Geochemistry International 2013 (in press). Rimstidt JD, H.L. Barnes HL. The kinetics of silica–water reactions. Geochim Cosmochim Acta 1980; 44:1683-99. Dove PM. Kinetic and thermodynamic controls on silica reactivity in weathering environments. Rev Mineral 1995;31:235-90. Bettermann P, Liebau F. The transformation of amorphous silica to crystalline silica under hydrothermal conditions. Contrib Mineral Petrol 1975; 53:25-36. Panchamgam SS, Chatterjee A, Plawsky JL, Wayner Jr PC. Comprehensive experimental and theoretical study of fluid flow and heat transfer in a microscopic evaporating meniscus in a miniature heat exchanger. Int J Heat Mass Transfer 2008; 51:5368-79. Agar JN, Turner JCR. Thermal diffusion in solutions of electrolytes. Proc Roy Soc London Ser A 1960; 255:307-30. Elhajjar B, Mojtabi A, Costesèque P, Charrier-Mojtabi M-C. Separation in an inclined porous thermogravitational cell. Int J Heat Mass Transfer 2010; 53:4844-51. Elhajjar B, Mojtabi A, Marcoux M, Charrier-Mojtabi M-C. Étude de la thermogravitation dans une couche fluide horizontale. C R Mecanique 2006; 334:621-7. Plyasunov AV. Thermodynamics of Si(OH)4 in the vapor phase of water: Henry's and vapor–liquid distribution constants, fugacity and cross virial coefficients. Geochim Cosmochim Acta 2012; 77:215-31.