Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Flotation selectivity of novel alkyl dicarboxylate reagents for apatite-calcite separation
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.ORCID iD: 0000-0002-7524-7767
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.ORCID iD: 0000-0001-9153-6262
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
Chalmers University of Technology, Chalmers University of Technology, Department of Chemical and Biological Engineering.
Show others and affiliations
2015 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 445, p. 40-47Article in journal (Refereed) Published
Abstract [en]

The investigation aims to demonstrate the conceptual thoughts behind developing mineral specific reagents for use in flotation of calcium containing ores. For this purpose, a series of dicarboxylate-based surfactants with varying distance between the carboxylate groups (one, two or three methylene groups) was synthesized. A surfactant with the same alkyl chain length but with only one carboxylate group was also synthesized and evaluated. The adsorption behavior of these new reagents on pure apatite and pure calcite surfaces was studied using Hallimond tube flotation, FTIR and ζ potential measurements. The relation between the adsorption behavior of a given surfactant at a specific mineral surface and its molecular structure over a range of concentrations and pH values, as well as the region of maximum recovery, was established. It was found that one of the reagents, with a specific distance between the carboxylate groups, was much more selective for a particular mineral surface than the other homologues. For example, out of the four compounds synthesized, only the one where the carboxylate groups were separated by a single methylene group floated apatite but not calcite, whereas calcite was efficiently floated with the monocarboxylic reagent, but not with the other reagents synthesized. This selective adsorption of a given surfactant to a particular mineral surface relative to other mineral surfaces as evidenced in the flotation studies was substantiated by ζ potential and infra-red spectroscopy data

Place, publisher, year, edition, pages
2015. Vol. 445, p. 40-47
National Category
Metallurgy and Metallic Materials
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-10025DOI: 10.1016/j.jcis.2014.11.072ISI: 000350006700006PubMedID: 25596367Scopus ID: 2-s2.0-84921051820Local ID: 8c78bb41-0a29-4bee-b260-10091965f006OAI: oai:DiVA.org:ltu-10025DiVA, id: diva2:982965
Note

Validerad; 2015; Nivå 2; 20141205 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
In thesis
1. Selectivity in Calcium mineral flotation - An analysis of novel an existing approaches
Open this publication in new window or tab >>Selectivity in Calcium mineral flotation - An analysis of novel an existing approaches
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Selektivitet vid flotation av Kalciummineral - En analys av nya och existerande tillvägagångssätt
Place, publisher, year, edition, pages
Luleå University of Technology, 2017
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
Keywords
Froth flotation, Mineral processing, Adsorption, Mineral specific reagents, surfactant
National Category
Mineral and Mine Engineering
Research subject
Mineral Processing
Identifiers
urn:nbn:se:ltu:diva-63132 (URN)978-91-7583-914-1 (ISBN)978-91-7583-915-8 (ISBN)
Public defence
2017-06-20, F531, 14:11 (English)
Opponent
Supervisors
Available from: 2017-05-16 Created: 2017-05-16 Last updated: 2018-03-01Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records BETA

Karlkvist, TommyPatra, AnuttamKota, Hanumantha Rao

Search in DiVA

By author/editor
Karlkvist, TommyPatra, AnuttamKota, Hanumantha Rao
By organisation
Minerals and Metallurgical Engineering
In the same journal
Journal of Colloid and Interface Science
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 267 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf