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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 828 pages |
| ISBN: | 978-0-9879917-0-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Mechanisms Of Copper Fire Refining In A Packed Bed Reactors
Gabriel Riveros1; Andrzej Warczok1; Daniel Smith2; Ariel Balocchi3;1UNIVERSITY OF CHILE, Santiago, Chile; 2ENAMI, Santiago, Chile; 3ENAMI, Copiapo, Chile;
Type of Paper: Invite
Id Paper: 461
Topic: 4
Abstract:
Copper fire refining consists of two stages: i) oxidation, desulphurization and slagging of impurities, and ii) reduction of an oxidized copper. Couter-current flow of a blister copper and oxygen containing gas through a reactor, filled with ceramic grains, leads to very fast copper oxidation. Gravitational, continuous flow of an oxidized copper through a packed bed of charcoal or low sulphur coke in a second reactor results in very effective and rapid copper reduction.Process principles and mechanisms have been analyzed in details. Modeling of the process allowed for the explanation of the very high kinetics of copper oxidation and reduction, showed by the results of the laboratory and pilot-industrial scale tests.