Object-oriented simulation of hydrometallurgical processes Part III. Application to leaching of latérites and pyrites

Kiranoudis, CT; Voros, NG; Kritikos, T; Maroulis, ZB; Marinos-Kouris, D; Papassiopi, N; Dimitropoulou, O; Paspaliaris, I; Kontopoulos, A

dc.contributor.author	Kiranoudis, CT	en
dc.contributor.author	Voros, NG	en
dc.contributor.author	Kritikos, T	en
dc.contributor.author	Maroulis, ZB	en
dc.contributor.author	Marinos-Kouris, D	en
dc.contributor.author	Papassiopi, N	en
dc.contributor.author	Dimitropoulou, O	en
dc.contributor.author	Paspaliaris, I	en
dc.contributor.author	Kontopoulos, A	en
dc.date.accessioned	2014-03-01T01:13:13Z
dc.date.available	2014-03-01T01:13:13Z
dc.date.issued	1997	en
dc.identifier.issn	10735615	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12373
dc.subject	Heat Balance	en
dc.subject	Nickel	en
dc.subject	Process Model	en
dc.subject	Process Simulation	en
dc.subject	Steady State	en
dc.subject	Sulfuric Acid	en
dc.subject	Object Oriented Simulation	en
dc.title	Object-oriented simulation of hydrometallurgical processes Part III. Application to leaching of latérites and pyrites	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11663-997-0006-6	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11663-997-0006-6	en
heal.publicationDate	1997	en
heal.abstract	The steady-state process simulator developed by Kiranoudis et al. has been used for the detailed simulation of sulfuric acid pressure leaching of latérite ores for the extraction of nickel and cobalt, and aqueous pressure oxidation of pyrites for the recovery of gold. Advanced hydrometallurgical process models for the specific unit operations involved were developed and are appropriately described. The simulation mainly focuses on studying the overall effects of certain design parameters on the entire plant efficiency. In the case of pyrites, the autothermal performance of the pressure autoclaves can be maintained by means of the oxidized recycle stream that greatly influences the fundamental heat balances of the reactor. Flashing the reactor pulp at the exit of the autoclaves results in further precipitation of solids related to ionic equilibrium reactions. The effect of grinding is important since most reactions are facilitated by small particle diameters. The ratio of feed pyrites influences the amount of precipitation of solids in the autoclave.	en
heal.journalName	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science	en
dc.identifier.doi	10.1007/s11663-997-0006-6	en
dc.identifier.volume	28	en
dc.identifier.issue	5	en
dc.identifier.spage	795	en
dc.identifier.epage	804	en