Collect. Czech. Chem. Commun. 1988, 53, 1718-1724

Kinetics of ammonia recovery from soda-plant liquor by burnt magnesite

Vladimír Glaser and Jan Vídenský

Department of Inorganic Technology, Prague Institute of Chemical Technology, 166 28 Prague 6


The kinetics of the reaction of a soda-plant liquor containing ammonium chloride and sodium chloride with softly burnt magnesite have been investigated using a modified distillation test. Evaluation of the kinetic data has shown that the reaction rate is controlled by the dissolution of the solid phase. The kinetic equation for this variant of reaction mechanism has been modified to obtain a form suitable for chemical engineering calculations. A procedure of determining the adjustable parameters of this equation is illustrated by treating the obtained experimental data.