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Conference Proceedings

Annual Conference, Newcastle: Coal Power 87

Conference Proceedings

Annual Conference, Newcastle: Coal Power 87

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Coal Firing of Sirosmelt Processes

A simple apparatus for delivering pulverized coal as fuel to a SIROSMELT lance is described, and its performance in smelting tests is evaluated. Using the pulverized coal as fuel, the SIROSMELT furnace performed well in both oxidative copper smelting and reductive smelting (zinc fuming). In both cases the evidence suggests that part of the combustion occurred by indirect oxidation of coal particles entrained in the bath. Oxygen potential measurements made during the zinc fuming tests confirmed the general features of the the non-equilibrium mechanism for zinc fuming proposed by Richards and Brimacombe. The zinc level in the slag during continuous fuming was lower than was predicted using an equilibrium model.
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  • Published: 1987
  • PDF Size: 0.542 Mb.
  • Unique ID: P198703011

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