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Sulphation of a Greek complex sulphide concentrate

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dc.contributor.author Neou-Syngouna, P en
dc.contributor.author Scordilis, D en
dc.date.accessioned 2014-03-01T01:08:09Z
dc.date.available 2014-03-01T01:08:09Z
dc.date.issued 1990 en
dc.identifier.issn 0304-386X en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/10305
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0025505311&partnerID=40&md5=e03b03c2bf4182ff7cda24191e2d5150 en
dc.subject.classification Metallurgy & Metallurgical Engineering en
dc.subject.other Hydrometallurgy - Leaching en
dc.subject.other Lead Zinc Deposits - Greece en
dc.subject.other Zinc Metallurgy - Research en
dc.subject.other Zinc Sulfide - Oxidation en
dc.subject.other Catalytic Sulfation Roasting en
dc.subject.other Complex Sulfide Concentrate en
dc.subject.other Water Soluble Metal Sulfates en
dc.subject.other Zinc Recovery en
dc.subject.other Zinc Ore Treatment en
dc.title Sulphation of a Greek complex sulphide concentrate en
heal.type journalArticle en
heal.language English en
heal.publicationDate 1990 en
heal.abstract Catalytic sulphation roasting of a complex sulphide concentrate (Kirki, Greece) containing 35.3% Zn, 15.1% Pb and 8.6% Fe, was carried out to sulphate zinc and lead and transform iron sulphides to haematite. Subsequent leaching with a very dilute acid solution at room temperature dissolved the soluble zinc sulphate; insoluble lead sulphate and haematite remained in the residue. The influence of the experimental variables; roasting temperature (500-600°C); duration of roasting (15-240 min); amount of oxygen (100-140% stoichiometric amount); and ratio of concentrate to catalyst (8:1 to 1:1) have been studied. Under optimum conditions, 550°C, 3 h, 120% stoichiometric amount of oxygen and 4:1 ratio of concentrate to catalyst, the recovery of zinc was 60% and the iron dissolution 1%. A two-stage roasting under similar conditions improved zinc recovery to 85%, while the dissolution of iron remained low (3%). © 1990. en
heal.publisher ELSEVIER SCIENCE BV en
heal.journalName Hydrometallurgy en
dc.identifier.isi ISI:A1990EF28400008 en
dc.identifier.volume 25 en
dc.identifier.issue 3 en
dc.identifier.spage 367 en
dc.identifier.epage 374 en


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