Sulphation of a Greek complex sulphide concentrate

Neou-Syngouna, P; Scordilis, D

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