Catalytic Activity of Sodium Kaolinites

D. G. Hawthorne and D. H. Solomon
C.S.I.R.O. Division of Applied Chemistry, P.O. Box 4331 G.P.O., Melbourne, Victoria, Australia

Abstract: Kaolinites, catalytically active for the polymerization of styrene, can be deactivated by treatment with 1N aqueous sodium chloride. Subsequent washing of the sodium kaolinite results in a facile hydrolysis yielding an active hydronium/aluminum kaolinite in which the exchangeable cations act as surface Brønsted acid initiation sites.

Clays and Clay Minerals; April 1972 v. 20; no. 2; p. 75-78; DOI: 10.1346/CCMN.1972.0200204
© 1972, The Clay Minerals Society
Clay Minerals Society (www.clays.org)