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Yazawa International Symposium on Metallurgical and Materials Processing: Principles and Technologis, San Diego California, USA March 02-06 2003 "Effect of Oxygen Potential on the Viscosity of Copper Smelting Slags"
Ian McBow1 ; S. Llubani 1; Florian Kongoli 1;
1FLOGEN Technologies Inc,1255 Laird Blvd., Ste.388, Mont-Royal, Quebec, Canada

Keywords : Fluxes, Viscosity, Oxygen Potential, Phase diagrams, slags, liquidus temperature, thermodynamics, modeling, solution, non-ferrous, pyrometallyrgy, smelting and converting, multicomponent systems

ABSTRACT

Viscosity is an important parameter of copper smelting and converting processes. It affects the settling of matte or metal droplets in the slag, distribution of elements etc. Despite this importance, confusion exists on the viscosity of copper smelting slags as a result of disagreements found among the measured viscosity data of several authors especially in the slags of high ferric iron content and close to magnetite precipitation. In this work a critical review of the existing data on the viscosity of copper smelting slags has been first carried out and the effect of oxygen potential on the viscosity of copper smelting slags has been clarified through a coupled quantification of viscosity and liquidus temperature. The confusion in the literature has been clarified and the importance of the relation between the viscosity and the liquidus temperature is discussed.

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