2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 2: Mineral Processing

Editors:Kongoli F
Publisher:Flogen Star OUTREACH
Publication Year:2014
Pages:446 pages
ISBN:978-1-987820-04-1
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    PHYSICO-CHEMICAL BASIS AND DEVELOPMENT OF WASTE-FREE TECHNOLOGY OF INTEGRATED PROCESSING OF COLLECTIVE POLYMETALLIC CONCENTRATES

    Gagik Karamyan1; Kliment Hakobyan1; Armen Hakobyan1; Ararat Melkomyan1; Vahram Hayrapetyan1; Grenik Paramazyan1;
    1INSTITUTE OF CHEMICAL PHYSICS OF NAS OF ARMENIA, Yerevan, Armenia;
    Type of Paper: Regular
    Id Paper: 24
    Topic: 2

    Abstract:

    The thermodynamic studies of desulfurization processes of sulfides of non-ferrous and rare metals were studied. The calculations were performed using the thermodynamic database and NVTANTERMO software. On the basis of these calculations, the experimental investigations of desulfurization of sulfides of copper, lead, zinc, iron, silver, as well as collective polymetallic concentrates of Shahumyan deposit in Armenia were carried out. In the processing of reducing gases (H2 + CO), water vapor and steam-air mixture were used.
    The experiments showed that, from an economic point of view, the most efficient processing method is a steam-refining of concentrates. This method significantly reduces the energy expenses, process duration and ensures high degree of extraction (97 - 98%) of the major components. Besides, this method allows obtaining sulfur in elemental form.
    All this makes possible to organize an economical waste-free and ecologically clean processing of polymetallic concentrates.

    Keywords:

    desulfurization process, polymetallic sulfide concentrates, extraction, copper, lead, zinc, iron, silver, elemental sulfur

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    Cite this article as:

    Karamyan G, Hakobyan K, Hakobyan A, Melkomyan A, Hayrapetyan V, Paramazyan G. PHYSICO-CHEMICAL BASIS AND DEVELOPMENT OF WASTE-FREE TECHNOLOGY OF INTEGRATED PROCESSING OF COLLECTIVE POLYMETALLIC CONCENTRATES. In: Kongoli F, editors. Sustainable Industrial Processing Summit SIPS 2014 Volume 2: Mineral Processing. Volume 2. Montreal(Canada): FLOGEN Star Outreach. 2014. p. 361-366.