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Sulphation of a Greek complex sulphide concentrate
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1990
(EN)
EKT historical period
Title
Sulphation of a Greek complex sulphide concentrate (EN)
Creator
Scordilis, D (EN)
Neou-Syngouna, P (EN)
Description
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)
Type
journalArticle (EN)
Subject
Complex Sulfide Concentrate (EN)
Zinc Sulfide - Oxidation (EN)
Zinc Metallurgy - Research (EN)
Metallurgy & Metallurgical Engineering (EN)
Catalytic Sulfation Roasting (EN)
Lead Zinc Deposits - Greece (EN)
Zinc Ore Treatment (EN)
Water Soluble Metal Sulfates (EN)
Hydrometallurgy - Leaching (EN)
Zinc Recovery (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Hydrometallurgy (EN)
Language
English
Issued
1990 (EN)
Identifier
http://hdl.handle.net/123456789/10305
374 (EN)
25 (EN)
3 (EN)
ISI:A1990EF28400008 (EN)
367 (EN)
0304-386X (EN)
Publisher
ELSEVIER SCIENCE BV (EN)
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