Oxidation of copper matte particles under simulated flash converting conditions

Kirsi M. Riihilahti*, Hong Yong Sohn, Ari Jokilaakso, Manuel Perez-Tello

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

6 Scopus citations


The oxidation characteristics of solid copper matte particles under simulated Kennecott-Outokumpu Flash Converting conditions are presented. This project is concerned with the determination of the effects of operating variables on the reaction of the particles. Experiments were carried out in a large laboratory-scale flash furnace with 72 wt-% Cu matte by varying initial particle size, temperature, oxygen partial pressure, oxygen-to-matte mass ratio and residence time. Chemical analysis was used to study the oxidation extent and copper volatilization. Particle fragmentation was examined. Fractional conversion and sulfur removal slightly decreased with initial particle size, while a higher oxygen-to-matte mass ratio mainly resulted in higher fractional conversion and more efficient sulfur removal. The fractional conversion values represented the overall extent of oxidation more closely than degree of sulfur removal.

Original languageEnglish
Number of pages21
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 TMS Annual Meeting - Orlando, FL, USA
Duration: 10 Feb 199713 Feb 1997


ConferenceProceedings of the 1997 TMS Annual Meeting
CityOrlando, FL, USA


Dive into the research topics of 'Oxidation of copper matte particles under simulated flash converting conditions'. Together they form a unique fingerprint.

Cite this