Reactions in the Solid State, with Special Reference to the Reactions between Silica, Sodium Carbonate, Calcium Carbonate and Alumina

JSGT 1937 V21 T155-T169

 The dissociation and reaction theories underlying solid reaction processes are reviewed and critically discussed. The application of the several equations formulated to express these processes is considered with special regard to the decomposition of calcium carbonate, the reaction of sodium and calcium carbonates with silica or alumina and to ternary mixtures of sodium and calcium carbonates and silica. In the case of mixtures of Na₂CO₃ or CaCO₃ with SiO₂ or Al₂O₃, definite conclusions as to the process of the reaction can be reached only by following the process from 0 to 100% decomposition or reaction, and it is desirable to confirm the results by chemical examination of the reaction products. In the ternary mixtures there are two stages to the reaction process, the CaCO₃ being totally decomposed in the first stage.

J. E. Stanworth