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Application of CFD in vacuum dezincing process

Application of CFD in vacuum dezincing process

Patel, M.K., Bailey, C., 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

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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: 14 Oct 2016 09:01
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/704

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