The Enthalpy and Kinetics of Sorption on VION Fibrous Chemisorbents

The enthalpy and kinetics of interaction of acids and alkalis with VION KN-1 and VION AN-1 weakly ionized fibrous chemisorbents were determined by the calorimetric and sorption techniques. The interaction of the chemisorbents, no matter what their initial form, with acids and alkalis was exothermic, and the maximum thermal effect was attained within the initial period of 10–20 min. The sorption of Cu²⁺, Co²⁺, Ni²⁺, Zn²⁺, and Cd²⁺ by the salt (Na) form of the cation exchanger was endothermic, and the enthalpy of the process depended on the nature of metal cations and their concentration in solution. Original Russian Text ? V.D. Kopylova, O.M. Zverev, A.V. Astapov, Yu.S. Peregudov, 2008, published in Zhurnal Fizicheskoi Khimii, 2008, Vol. 82, No. 4, pp. 739–744.