The International Nickel Company, Inc.

Timothy E Volin

Jay Michael Larson

Robert Lacock Cairns

John Stanwood Benjamin

Mixed metal oxides are prepared as catalyst materials by a method comprising high energy impact milling of a formulated mixture of powders to form a mechanically alloyed product and heat treating said product in an oxidizing atmosphere to form the desired compound. In a preferred embodiment a catalytic material is formed which has the general empirical formula ABO.sub.3 and a perovskite-type crystal structure.

Process for preparing mixed metal oxide catalysts

Prealloyed powders, particularly of compositions which are difficult to work by conventional means, are subjected to forces such that strain energy is imparted thereto by virtue of which the prealloyed powders manifest low flow stress and a high degree of thermoplasticity.

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Tuxedo, NY, United States of America

Timothy E Volin