Continuous converting of copper matte to blister copper in a high intensity molten layer reactor

WILKOMIRSKY. I; PARRA R.; PARADA. F; BALLADARES. E.:
The Journal of The Minerals, Metals & Materials Society 66:9 (2014) 1687-1693.

DOI: 10.1007/s11837-014-0939-6

Abstract

Continuous converting of copper matte or white metal into blister copper is carried out in a new, high-intensity falling film type of molten-layer reactor that operates with dry, high-grade matte or white metal ground to −65 mesh and technical oxygen. The reactor operates at up to 1500°C to 1600°C producing a blister copper with 0.5–0.8% S, which can be refined in a conventional manner, and a slag containing less than 8% Cu. The reactor is designed to operate continuously producing an off-gas containing over 50% SO2. The developed phenomenological model of the molten-layer reactor was found to predict with good agreement the results obtained in a one-tonne-per-day pilot reactor.

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