Object-oriented simulation of hydrometallurgical processes: Part II. application to the bayer process

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/123456789/12374
dc.subject	Ambient Temperature	en
dc.subject	Kinetics	en
dc.subject	Positive Affect	en
dc.subject	Process Model	en
dc.subject	Process Simulation	en
dc.subject	Simulation Study	en
dc.subject	Steady State	en
dc.subject	Object Oriented Simulation	en
dc.title	Object-oriented simulation of hydrometallurgical processes: Part II. application to the bayer process	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11663-997-0005-7	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11663-997-0005-7	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 the Bayer process flowsheet. It consists of the digestor/flash section as well as the precipitation and washing circuits. Advanced hydrometallurgical process models for the specific unit operations involved were developed and are appropriately described. The simulation studies mainly focus on studying the overall effects of certain design parameters on the entire plant efficiency. The overall performance of the bauxite digestion section is greatly and positively affected by the freesoda concentration of the feed liquor, the corresponding concentration of solid particles, and the operation temperature of the circuit. Precipitation of alumina in crystallizers is greatly affected by the corresponding soda concentration of the washing unit product stream, indicating the importance of this section. Furthermore, ambient temperature is important to the precipitation kinetics, influencing negatively the quantitative precipitation but resulting in particle populations of higher mean diameter.	en
heal.journalName	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science	en
dc.identifier.doi	10.1007/s11663-997-0005-7	en
dc.identifier.volume	28	en
dc.identifier.issue	5	en
dc.identifier.spage	785	en
dc.identifier.epage	793	en