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A study of the reprocessing of fine and ultrafine cassiterite from gravity tailing residues by using various flotation techniques
Helmholtz Institute Freiberg for Resource Technology, Freiberg, Germany.
Helmholtz Institute Freiberg for Resource Technology, Freiberg, Germany; TU Bergakademie Freiberg, Freiberg, Germany.
TU Bergakademie Freiberg, Freiberg, Germany.
University of Michigan, Ann Arbor, Michigan, USA.ORCID iD: 0000-0002-2265-6321
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2016 (English)In: Minerals Engineering, ISSN 0892-6875, E-ISSN 1872-9444, Vol. 96-97, p. 94-98Article in journal (Refereed) Published
Abstract [en]

This study investigates the reprocessing of once disposed tin tailings from a historic German tin operation through different surface properties based processing techniques. Froth flotation and agglomeration flotation, by using commercially available cassiterite collectors from Clariant, were chosen as processing techniques. Isooctane as a nonpolar oil was used to promote the collection of ultrafine (−10 μm) cassiterite by selective agglomeration, and thus, size enlargement. Results indicate that by using sulfosuccinamates as a collector, around 80% of the fine (−50 μm) to very fine (−20 μm) cassiterite can be recovered (representing ∼50% of the total cassiterite in the tailings sample). Agglomeration flotation experiments showed inferior results for recovering the ultrafine cassiterite (for feed fractions in the −25 μm size range). Oil/froth interaction and increased pulp ion content are considered as the main contributing causes.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 96-97, p. 94-98
Identifiers
URN: urn:nbn:se:ltu:diva-72262DOI: 10.1016/j.mineng.2016.06.020OAI: oai:DiVA.org:ltu-72262DiVA, id: diva2:1296112
Available from: 2019-03-13 Created: 2019-03-13 Last updated: 2019-03-13Bibliographically approved

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Chelgani, Saeed Chehreh

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