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A process mineralog...
A process mineralogy approach to optimize molybdenite flotation in copper : molybdenum processing plants
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- Abdollahi, Morteza (author)
- Faculty of Engineering, Urmia University, Iran
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- Bahrami, Ataallah (author)
- Department of Mining Engineering, Faculty of Engineering – Urmia University, P.O. Box 57561/51818, Iran
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- Saleh Mirmohammadi, Mir (author)
- School of Mining Engineering, University of Tehran, Iran
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- Kazemi, Fatemeh (author)
- Faculty of Engineering – University of Kashan, Iran
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- Danesh, Abolfazl (author)
- Complex of Copper Processing – Sungun, Headquarters Rd, Tabriz, East Azerbaijan Province, Iran
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- Ghorbani, Yousef (author)
- Luleå tekniska universitet,Mineralteknik och metallurgi
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Faculty of Engineering, Urmia University, Iran Department of Mining Engineering, Faculty of Engineering – Urmia University, PO. Box 57561/51818, Iran (creator_code:org_t)
- Elsevier, 2020
- 2020
- English.
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In: Minerals Engineering. - : Elsevier. - 0892-6875 .- 1872-9444. ; 157
- Related links:
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https://www.scienced...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The Sungun copper-molybdenum operation in Iran uses a typical copper-molybdenum flowsheet to produce separate copper and molybdenum concentrates through flotation and regrinding of the rougher concentrates arising from the primary circuit. This site was used as a case study limited to the feed and products of the copper-molybdenum separation circuit, in which process mineralogy might improve the quality of the molybdenum concentrate thorough diagnostic analysis of key flowsheet streams. The undesirable presence of copper in the molybdenum concentrate was identified as a key focus for the investigation by process mineralogy, which has a history of successful process diagnosis. This is because it develops information on minerals, which is far more informative than chemical assays alone. Together with the assays, the mineralogical data inform the investigator of the type and quantity of minerals present, their state of liberation and textural associations, and metal recovery.A key finding was that the appearance of chalcopyrite in the molybdenum concentrate was due to the presence of a chalcopyrite-pyrite texture that avoided the chalcopyrite depression in the molybdenum circuit because of suitable pyrite flotation conditions. Recovery of liberated pyrite to this concentrate also diluted the molybdenum concentrate. The open-circuit format of the regrind circuit also contributed to the unnecessary production of ultrafine particles. This flaw expressed itself as ultrafine losses of molybdenite to the flotation tailings.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Process mineralogy
- Flotation
- Copper sulphide minerals
- Molybdenite
- Grade and recovery
- Sungun copper complex
- Mineral Processing
- Mineralteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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