Alkylammonium Decomposition on Montmorillonite Surfaces in an Inert Atmosphere

B. Durand*, R. Pelet* and J. J. Fripiat
* Institut Français du Pétrole Rueil-Malmaison, France
Laboratoire de Physico-Chimie Minerale, Institut des Sciences de la Terre, Heverlee-Louvain, Belgique

Abstract: A study of the thermal transformation of alkylammonium cations adsorbed on the surface of a montmorillonite in various conditions of hydration has been carried out. The experimental conditions were: inert atmosphere, temperatures below 250°C and time periods up to 270 days. The reactions observed are mainly transalkylations, for which a mechanism of acid catalysis is proposed. A high degree of dissociation of the water remaining on the surface of the clay is required and is attained for an optimal, and rather low, water content of the clay.

Clays and Clay Minerals; February 1972 v. 20; no. 1; p. 21-35; DOI: 10.1346/CCMN.1972.0200104
© 1972, The Clay Minerals Society
Clay Minerals Society (www.clays.org)