Sulfidation of Oxidized Lead and Zinc with Pyrite-Bearing Lead-and-Zinc Ore

The article proves the promising nature of joint roasting of rebellious oxidized and sulfide lead-and-zinc ore from Ozerny deposit at the stage of ore preparation for flotation. The joint roasting of lead-and-zinc ore and sulfide ore initiates generation of sulfur-containing agents and sulfidation o...

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Bibliographic Details
Published inJournal of mining science Vol. 59; no. 3; pp. 465 - 474
Main Authors Antropova, I. G., Merinov, A. A., Gulyashinov, P. A., Damdinov, B. B.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.06.2023
Springer Nature B.V
Subjects
Calorimetry
Chemical analysis
Commercialization
Differential scanning calorimetry
Disintegration
Earth and Environmental Science
Earth Sciences
Environmental impact
Ferric oxide
Flotation
Food processing
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Iron oxides
Lead
Light microscopy
Marketing
Mineral Dressing
Mineral Resources
Optical microscopy
Oxidation
Pyrite
Roasting
Service life
Sulfidation
Sulfide
Sulfides
Sulfur
Sulphides
Sulphur
Zinc
Zinc ores
Ozerny deposit
oxidized lead-and-zinc ore
sulfidation roasting
sulfide ore
non-mechanical disintegration
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Summary:The article proves the promising nature of joint roasting of rebellious oxidized and sulfide lead-and-zinc ore from Ozerny deposit at the stage of ore preparation for flotation. The joint roasting of lead-and-zinc ore and sulfide ore initiates generation of sulfur-containing agents and sulfidation of rebellious oxidized lead and zinc. It is experimentally proved that selective oxidation of pyrite proceeds together with disintegration of lead and zinc along the interphase boundaries. The main products of such interaction are ZnS, PbS, Fe 3 O 4  and Fe 2 O 3 , which can greatly facilitate flotation later on. This method of complex ore processing can potentiate commercialization of oxidized lead-and-zinc ore and rebellious sulfide ore, can prolong service life of mines and mitigate the environmental impact of the industry. The produced samples are analyzed and described using the X-ray phase analysis, differential scanning calorimetry, optical microscopy, chemical analysis, Rietveld refinement and program TOPAS.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739123030134