Parra, R., Sepúlveda, X., Wilkomirsky, I., Parada, F. and Balladares, E. (2012) Proceso para la Remoción de Arsénico, Antimonio y Bismuto Desde Polvos de Fundición de Cobre, que Comprende Mezclado de los Polvos de Fundición con un Agente Sulfidizante, Aglomeración de la Mezcla, Sulfidización de los Compuestos Arsenicales, Volatilización y Condensación de los Sulfuros de Arsénico. Chilean Patent No. CL 2012-001376, 30 November 2012.

has been cited by the following article:

• TITLE: Pyrometallurgical Removal of Arsenic from Electrostatic Precipitators Dusts of Copper Smelting

  AUTHORS: Hector Henao, Ignacio Paredes, Rodrigo Diaz, Javier Ortiz

  KEYWORDS: Copper Smelter Dust, Electrostatic Precipitators of Copper, Removal of Arsenic, Sulfidation, Roasting Process

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.9 No.6, November 5, 2021

  ABSTRACT: This work describes the experimental results of pyrometallurgical removing of arsenic from the dust collected in the electrostatic copper precipitators within the gas cleaning system of a Copper Flash Smelting Furnace. The generation of dust in the copper smelting worldwide ranges from 2 - 15 wt% per ton of a copper concentrate. In Chile, copper smelters produce approximately 110 kt/y of dust with a concentration of arsenic between 1 and 15 wt%. The dust is a complex of metals oxides and sulfurs with copper concentrations greater than 10 wt% and relatively high silver concentrations. Since its high arsenic concentration, it is difficult to recover valuable metals through hydrometallurgical processes or by direct recirculation of the dust in a smelting furnace. Thus, the development of pyrometallurgical processes aimed at reducing the concentration of arsenic in the dust (