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Fatty acid collectors for phosphate flotation and their adsorption behavior using QCM-D

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Title: Fatty acid collectors for phosphate flotation and their adsorption behavior using QCM-D
Authors: Kou, J.1,2, Tao, D.2 dtao@engr.uky.edu, Xu, G.2
Source: International Journal of Mineral Processing. Jul2010, Vol. 95 Issue 1-4, p1-9. 9p.
Subjects: Fatty acids, Phosphates, Flotation, Adsorption (Chemistry), Quartz crystal microbalances, Mineral processing, Energy dissipation, Hydroxyapatite
Abstract: Abstract: In this paper the relationship between the flotation performance of phosphate collectors and their adsorption behavior was evaluated using a variety of techniques including the Crystal Microbalance with Dissipation technique (QCM-D). The adsorption of the collectors on the surface of hydroxyapatite was primarily characterized using QCM-D, which is a high sensitivity in-situ surface characterization technique. Additionally, the collectors were evaluated via zeta potential and FTIR analyses. The flotation performance of the collectors was evaluated using a laboratory mechanical flotation cell at different process parameters such as pH, collector dosage, diesel dosage and flotation time. The two collectors evaluated were a commercial plant collector and a refined tall oil fatty acid. The QCM-D data showed that the refined tall oil fatty acid adsorbed on phosphate more readily and produced stronger hydrophobicity and better flotation performance than the plant collector. The chemisorption and surface precipitation mechanisms of the refined tall oil fatty acid on the surface of hydroxyapatite were demonstrated by means of zeta potential measurements and FTIR analysis. [Copyright &y& Elsevier]
Copyright of International Journal of Mineral Processing is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 51295768
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Fatty acid collectors for phosphate flotation and their adsorption behavior using QCM-D
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  Data: <searchLink fieldCode="AR" term="%22Kou%2C+J%2E%22">Kou, J.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Tao%2C+D%2E%22">Tao, D.</searchLink><relatesTo>2</relatesTo><i> dtao@engr.uky.edu</i><br /><searchLink fieldCode="AR" term="%22Xu%2C+G%2E%22">Xu, G.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Mineral+Processing%22">International Journal of Mineral Processing</searchLink>. Jul2010, Vol. 95 Issue 1-4, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Fatty+acids%22">Fatty acids</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphates%22">Phosphates</searchLink><br /><searchLink fieldCode="DE" term="%22Flotation%22">Flotation</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+%28Chemistry%29%22">Adsorption (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Quartz+crystal+microbalances%22">Quartz crystal microbalances</searchLink><br /><searchLink fieldCode="DE" term="%22Mineral+processing%22">Mineral processing</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroxyapatite%22">Hydroxyapatite</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: In this paper the relationship between the flotation performance of phosphate collectors and their adsorption behavior was evaluated using a variety of techniques including the Crystal Microbalance with Dissipation technique (QCM-D). The adsorption of the collectors on the surface of hydroxyapatite was primarily characterized using QCM-D, which is a high sensitivity in-situ surface characterization technique. Additionally, the collectors were evaluated via zeta potential and FTIR analyses. The flotation performance of the collectors was evaluated using a laboratory mechanical flotation cell at different process parameters such as pH, collector dosage, diesel dosage and flotation time. The two collectors evaluated were a commercial plant collector and a refined tall oil fatty acid. The QCM-D data showed that the refined tall oil fatty acid adsorbed on phosphate more readily and produced stronger hydrophobicity and better flotation performance than the plant collector. The chemisorption and surface precipitation mechanisms of the refined tall oil fatty acid on the surface of hydroxyapatite were demonstrated by means of zeta potential measurements and FTIR analysis. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Mineral Processing is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.minpro.2010.03.001
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      – Code: eng
        Text: English
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        PageCount: 9
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      – SubjectFull: Fatty acids
        Type: general
      – SubjectFull: Phosphates
        Type: general
      – SubjectFull: Flotation
        Type: general
      – SubjectFull: Adsorption (Chemistry)
        Type: general
      – SubjectFull: Quartz crystal microbalances
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      – SubjectFull: Mineral processing
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      – SubjectFull: Energy dissipation
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      – SubjectFull: Hydroxyapatite
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      – TitleFull: Fatty acid collectors for phosphate flotation and their adsorption behavior using QCM-D
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            NameFull: Tao, D.
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              Text: Jul2010
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              Y: 2010
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