Substitution of lead catalysts by zirconium in the oxidative polymerization of linseed oil

Abstract

In this study, the oxidation of linseed oil was used as a model for oxidative alkyd paint system. A comparative study between cobalt, lead and zirconium octoates as catalysts for oxidative polymerization of linseed oil has been performed. The cobalt salt catalyzes the oxidation step, and the lead and zirconium catalyze the polymerization step. Under the same reaction conditions, the zirconium catalyst is more efficient than lead. As the use of lead compounds is associated with toxicological problems, our results suggest use of the zirconium salt as a substitute for lead compounds in industrial applications. © 1998 Elsevier Science S.A. All rights reserved.