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dc.contributor.authorXie, Y.
dc.contributor.authorXie, S.
dc.contributor.authorChen, X.
dc.contributor.authorGui, W.
dc.contributor.authorYang, C.
dc.contributor.authorCaccetta, Louis
dc.date.accessioned2017-01-30T11:33:31Z
dc.date.available2017-01-30T11:33:31Z
dc.date.created2015-01-21T20:00:41Z
dc.date.issued2015
dc.identifier.citationXie, Y. and Xie, S. and Chen, X. and Gui, W. and Yang, C. and Caccetta, L. 2015. An integrated predictive model with an on-line updating strategy for iron precipitation in zinc hydrometallurgy. Hydrometallurgy. 151: pp. 62-72.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/12909
dc.identifier.doi10.1016/j.hydromet.2014.11.004
dc.description.abstract

Iron precipitation by goethite plays an important role in zinc hydrometallurgy. The ferrous ion concentration, which is a key index for assessing the iron removal rate and process control results, cannot be measured on-line. In this study, an integrated predictive model of the ferrous ion concentration is established by integrating the mechanism model and error compensation model, which is based on data identification. The mechanism model is proposed based on an analysis of the process reaction and considering the reaction unit as a continuous stirred tank reactor model. For unknown parameters in the mechanism model, a double-particle swarm optimization algorithm based on information exchange and dynamic adjustment of the feasible region is developed for optimal selection. To improve the adaptive capability of the integrated model, we propose a model-updating strategy and parameter calibration method based on a sensitivity analysis to accomplish on-line adaptive updating of the predictive model. The simulation results demonstrate that the proposed model can effectively track the variation tendency of the ferrous ion concentration and successfully improve the adaptability of the integrated model.

dc.publisherElsevier
dc.titleAn integrated predictive model with an on-line updating strategy for iron precipitation in zinc hydrometallurgy
dc.typeJournal Article
dcterms.source.volume151
dcterms.source.startPage62
dcterms.source.endPage72
dcterms.source.issn0304-386X
dcterms.source.titleHydrometallurgy
curtin.departmentDepartment of Mathematics and Statistics
curtin.accessStatusFulltext not available


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