Application of CFD in vacuum dezincing process
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Patel, M.K., Bailey, C.
ORCID: 0000-0002-9438-3879
, Djambazov, G.
ORCID: 0000-0001-8812-1269
, Shrimpton, J. and Jalili, V.
(2003)
Application of CFD in vacuum dezincing process.
In: The 3rd International Conference on CFD in the Minerals and Process Industries [Proceedings].
CSIRO Publishing, Collingwood, Victoria, Australia, pp. 313-318.
ISBN 978064309038X
Abstract
Most lead bullion is refined by pyrometallurgical methods - this involves a serics of processes that remove the antimony (softening) silver (Parkes process), zinc (vacuum dezincing) and if need be, bismuth (Betterton-Kroll process). The first step, softening, removes the antimony, arsenic and tin by air oxidation in a furnace or by the Harris process. Next, in the Parkes process, zinc is added to the melt to remove the silver and gold. Insoluble zinc, silver and gold compounds are skimmed off from the melt surface.
Excess zinc added during desilvering is removed from lead bullion using one of ghree methods:
* Vacuum dezincing;
* Chlorine dezincing; or
* Harris dezincing.
The present study concentrates on the Vacuum dezincing process for lead refining. The main aims of the research are to develop mathematical model(s), using Computational Fluid Dyanmics (CFD) a Surface Averaged Model (SAM), to predict the process behaviour under various operating conditions, thus providing detailed information of the process - insight into its reaction to changes of key operating parameters. Finally, the model will be used to optimise the process in terms of initial feed concentration, temperature, vacuum height cooling rate, etc.
| Item Type: | Conference Proceedings |
|---|---|
| Title of Proceedings: | The 3rd International Conference on CFD in the Minerals and Process Industries [Proceedings] |
| Additional Information: | [1] This paper was first presented at the 3rd International Conference on CFD in the Minerals and Process Industries held from 10-12 December 2003 in Melbourne, Australia. [2] ISBN: 978064309038X (CD-ROM) |
| Uncontrolled Keywords: | computational modelling, computational fluid dynamics, CFD |
| Subjects: | Q Science > QA Mathematics > QA76 Computer software T Technology > TJ Mechanical engineering and machinery |
| Pre-2014 Departments: | School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Mechanics & Reliability Group School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Fire Safety Engineering Group School of Computing & Mathematical Sciences > Department of Computer Systems Technology School of Computing & Mathematical Sciences > Department of Mathematical Sciences |
| Related URLs: | |
| Last Modified: | 13 Mar 2019 11:30 |
| URI: | http://gala.gre.ac.uk/id/eprint/704 |
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