A process mineralogy approach to optimize molybdenite flotation in copper: molybdenum processing plants

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Abdollahi, MortezaFaculty of Engineering, Urmia University, Iran (författare)

A process mineralogy approach to optimize molybdenite flotation in copper : molybdenum processing plants

Artikel/kapitelEngelska2020

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Elsevier,2020
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LIBRIS-ID:oai:DiVA.org:ltu-80539
https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80539URI
https://doi.org/10.1016/j.mineng.2020.106557DOI

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Språk:engelska
Sammanfattning på:engelska

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Validerad;2020;Nivå 2;2020-08-24 (alebob)
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.

Ämnesord och genrebeteckningar

TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
Process mineralogy
Flotation
Copper sulphide minerals
Molybdenite
Grade and recovery
Sungun copper complex
Mineral Processing
Mineralteknik

Biuppslag (personer, institutioner, konferenser, titlar ...)

Bahrami, AtaallahDepartment of Mining Engineering, Faculty of Engineering – Urmia University, P.O. Box 57561/51818, Iran (författare)
Saleh Mirmohammadi, MirSchool of Mining Engineering, University of Tehran, Iran (författare)
Kazemi, FatemehFaculty of Engineering – University of Kashan, Iran (författare)
Danesh, AbolfazlComplex of Copper Processing – Sungun, Headquarters Rd, Tabriz, East Azerbaijan Province, Iran (författare)
Ghorbani, YousefLuleå tekniska universitet,Mineralteknik och metallurgi(Swepub:ltu)yougho (författare)
Faculty of Engineering, Urmia University, IranDepartment of Mining Engineering, Faculty of Engineering – Urmia University, P.O. Box 57561/51818, Iran (creator_code:org_t)

Sammanhörande titlar

Ingår i:Minerals Engineering: Elsevier1570892-68751872-9444

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Av författaren/redakt...: Abdollahi, Morte ...; Bahrami, Ataalla ...; Saleh Mirmohamma ...; Kazemi, Fatemeh; Danesh, Abolfazl; Ghorbani, Yousef

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