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Magnetic aggregation in dispersions of mineral ultrafines
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
1995 (English)In: Journal of Dispersion Science and Technology, ISSN 0193-2691, E-ISSN 1532-2351, Vol. 16, no 2, p. 137-154Article in journal (Refereed) Published
Abstract [en]

Particle aggregation can be enhanced in two ways; (a) field-induced magnetic moment and (b) magnetic moment due to the remanent magnetisation. Investigation of the magnetic field-induced aggregation of hematite and chromite in aqueous suspension with the use of a laboratory scale electromagnetic solenoid related the aggregation process to particle size and external magnetic field in the natural pH value of the dispersions. This study have shown that hematite ultrafines in a well-dispersed slurry are selectively aggregated with sized magnetite in the absence of aggregating reagents, high shear rates or an external magnetic field.

Place, publisher, year, edition, pages
1995. Vol. 16, no 2, p. 137-154
National Category
Metallurgy and Metallic Materials Geophysics
Research subject
Mineral Processing; Applied Geophysics
Identifiers
URN: urn:nbn:se:ltu:diva-7250Local ID: 59718410-ab95-11db-aeba-000ea68e967bOAI: oai:DiVA.org:ltu-7250DiVA, id: diva2:980139
Note
Godkänd; 1995; 20070124 (agso)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Wang, YanminForssberg, EricPugh, RobertElming, Sten-åke

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