Physico-chemistry and kinetics mechanisms of partial roasting of high arsenic copper concentrates

WILKOMIRSKY, I.; PARRA, R.; PARADA, F.; BALLADARES, E.:
Proceeding Copper 2013, Vol. IV, 136-150 (2013).

Abstract

A physico–chemical/kinetic model is being proposed to explain the formation of bornite, chalcopyrite and magnetite during partial roasting of high–arsenic copper concentrates at 700ºC. The mechanism involves solid state-gas and solid–gas reactions between chalcosite, pyrrhotite and gaseous sulphur, and is thermodynamically consistent with the experimental results obtained in pilot plant.

Publication Details

Department:

Year:

Type:

Keywords: