|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Carbon Refractories in an Oxidizing Process? Copper Smelting in an OutotecŪ Ausmelt TSL Furnace with a UCARŪ Chill-Kote™ Refractory System
||Jacob Wood, Stefanie Creedy, Peter L. Duncanson
|On-Site Speaker (Planned)
||Peter L. Duncanson
Carbonaceous refractory materials are widely accepted in many reducing smelting processes such as iron and ferroalloys. Oxidizing processes such as copper concentrate smelting traditionally use magnesia or alumina/silica refractory materials. The main objection to carbon-based refractories in oxidizing applications is the potential for free oxygen to react with the carbon at high temperature, which could rapidly degrade the refractory lining.
In 2013, Outotec and GrafTech conducted joint trials of a thermally conductive, carbonaceous lining for smelting copper concentrates in the OutotecŪ pilot-scale top-submerged-lance (TSL) furnace in Dandenong, Australia. This testwork had two equally important goals; demonstrate the ability of carbon refractories to withstand oxidizing process conditions, while ensuring that neither furnace operating conditions nor process stability were negatively affected by the refractory material.
The paper discusses the input parameters of the trials, key observations during the testwork program, and the results and conclusions from both process and refractory design standpoints.
||Planned: A print-only volume