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A comparative study on the effects of dry and wet grinding on mineral flotation separation: a review
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.ORCID-id: 0000-0002-2265-6321
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.ORCID-id: 0000-0002-5979-5608
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.ORCID-id: 0000-0002-5228-3888
Vise andre og tillknytning
2019 (engelsk)Inngår i: Journal of Materials Research and Technology, ISSN 2238-7854, Vol. 8, nr 5, s. 5004-5011Artikkel, forskningsoversikt (Fagfellevurdert) Published
Abstract [en]

Water scarcity dictates to limit the use of water in ore processing plants particularly in arid regions. Since wet grinding is the most common method for particle size reduction and mineral liberation, there is a lack of understanding about the effects of dry grinding on downstream separation processes such as flotation. This manuscript compiles various effects of dry grinding on flotation and compares them with wet grinding. Dry grinding consumes higher energy and produces wider particle size distributions compared with wet grinding. It significantly decreases the rate of media consumption and liner wear; thus, the contamination of pulp for flotation separation is lower after dry grinding. Surface roughness, particle agglomeration, and surface oxidation are higher in dry grinding than wet grinding, which all these effects on the flotation process. Moreover, dry ground samples in the pulp phase correlate with higher Eh and dissolved oxygen concentration. Therefore, dry grinding can alter the floatability of minerals. This review thoroughly assesses various approaches for flotation separation of different minerals, which have been drily ground, and provides perspectives for further future investigations.

sted, utgiver, år, opplag, sider
Elsevier, 2019. Vol. 8, nr 5, s. 5004-5011
Emneord [en]
Flotation, Energy consumption, Grinding media type, HPGR, Dry grinding, Wet grinding
HSV kategori
Forskningsprogram
Mineralteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-75591DOI: 10.1016/j.jmrt.2019.07.053ISI: 000486630400124OAI: oai:DiVA.org:ltu-75591DiVA, id: diva2:1343997
Merknad

Validerad;2019;Nivå 2;2019-10-28 (johcin)

Tilgjengelig fra: 2019-08-20 Laget: 2019-08-20 Sist oppdatert: 2019-10-28bibliografisk kontrollert

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Chelgani, Saeed ChehrehParian, MehdiSemsari, ParisaGhorbani, YousefRosenkranz, Jan

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