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

Editors:Kongoli F
Publisher:Flogen Star OUTREACH
Publication Year:2014
Pages:446 pages
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Research on receiving some compounds of molybdenum from a molibdenite concentrate

    Sarnai Altantsetseg1;
    Type of Paper: Regular
    Id Paper: 63
    Topic: 2


    Molybdenum mine is spread on the territory of Mongolia in the main form of copper-molybdenum ore, and there were found rich deposits like Erdenet, Tsagaan-Suvarga and Oyu-tolgoi. The molybdenum mining process used at Mongolia Erdenet Company.Ltd is a selective flotation of molybdenite from the copper porphyry ores in which the extraction of molybdenum comes as a byproduct of the ongoing copper production.
    The experimental technological procedures and analysis were performed on the molybdenum concentrate of Erdenet. The mineralogical composition of molybdenum concentrate is 99.4% molybdenite (MoS2), 0.09% molybdenum oxide (MoO3), 0.52% powellite (CaMoO4) and wulfenite (PbMoO4) and content Mo 47.76-47.92%, Cu 1.5-2.67%, Re-0.04%. After mechano-chemical activation, the oxidized burning temperature of Mo-concentrate decreased from 5500C to 450-5000C and burning time decreased from 2 hour to 1 hour. The optimal regime for the calcium molybdate precipitation from molybdenum ammonium solution: pH= 9, temperature 400C and the result of X-ray is suited to chemical pure calcium molybdate. The optimal regime for molybdenum acid crystallization: pH=2, time is 6-7 hours. By direct evaporation of ammonia extract of molybdenum concentrate, we obtained ammonium par molybdate, which contains 73.47% MoO3.


    molybdenum concentrate, mechano chemical activation, powellite, molybdenum acid

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    Cite this article as:

    Altantsetseg S. Research on receiving some compounds of molybdenum from a molibdenite concentrate. In: Kongoli F, editors. Sustainable Industrial Processing Summit SIPS 2014 Volume 2: Mineral Processing. Volume 2. Montreal(Canada): FLOGEN Star Outreach. 2014. p. 419-424.