Startseite Floatability of Chalcopyrite by Glycolipid Biosurfactants as Compared to Traditional Thiol Surfactants
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Floatability of Chalcopyrite by Glycolipid Biosurfactants as Compared to Traditional Thiol Surfactants

  • Priyanka Dhar , Irina V. Chernyshova , Maria Thornhill , Sophie Roelants , Wim Soetaert und Hanumantha Rao Kota
Veröffentlicht/Copyright: 1. Oktober 2019
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Tenside Surfactants Detergents
Aus der Zeitschrift Tenside Surfactants Detergents Band 56 Heft 5

Abstract

To reduce environmental and occupational impact of flotation reagents, there is an emerging need to find greener reagents for sulphide mineral flotation. This study presents a comparison of the interactions of chalcopyrite with three glycolipid biosurfactants (sophorolipid, glucolipid and glucoside) and three traditional thiol surfactants (collectors) to assess the potential of the biosurfactants as collectors. The mineral-surfactant interactions are studied using adsorption isotherm, zeta potential, FTIR spectroscopy and flotation tests. We find that glycolipid biosurfactants hold high potential as collectors for flotation of copper sulphides.

Kurzfassung

Um die Auswirkungen von Flotationsreagenzien auf die Umwelt und den Arbeitsplatz zu verringern, besteht ein wachsender Bedarf an umweltfreundlicheren Reagenzien für die Flotation von Sulfidmineralien. Diese Studie präsentiert einen Vergleich der Wechselwirkungen von Chalkopyrit mit drei Glycolipid-Biotensiden (Sophorolipid, Glucolipid und Glucosid) und drei herkömmlichen Thiol-Tensiden (Kollektoren), mit dem Ziel, das Potenzial der Biotenside als Kollektoren zu bewerten. Die Wechselwirkungen zwischen Mineralien und Tensiden werden mit der Adsorptionsisotherme, dem Zeta-Potential, der FTIR-Spektroskopie und mit Flotationstests untersucht. Wir stellen fest, dass Glycolipid-Biotenside ein hohes Potenzial als Sammler für die Flotation von Kupfersulfiden aufweisen.

Key words: Adsorption; glycolipids; chalcopyrite; hallimond flotation; n-butoxycarbonyl-o-n-butyl thionocarbamate (BBT); sodium isobutyl xanthate (SIBX) and disecondary butyl dithiophosphate (DBD)
Stichwörter: Adsorption; Glykolipide; Chalkopyrit; Hallimond-Flotation; n-Butoxycarbonyl-o-n-butylthionocarbamat (BBT); Natriumisobutylxanthat (SIBX) und disekundäres Butyldithiophosphat (DBD)
∗Prof. Dr. Hanumantha Rao Kota, Department of Geoscience and Petroleum Engineering Norwegian University of Science and Technology, NO-7491 TRONDHEIM, Norway, E-Mail:

Priyanka Dhar is a PhD student in the Department of Geosciences and Petroleum Engineering, Norwegian Institute of science and technology. She works with biosurfactants and thiol reagents in sulphide flotation. She has authored 3 papers in peer-reviewed journals.

Dr. Irina Chernyshova is an Associate Research Scientist in the Department of Earth and Environmental Engineering, Columbia University. Her main expertise is colloid and surface chemistry. One of the areas of her interests is the development of green surfactant and polymer formulations for various applications including mineral separation. She holds PhD in intermolecular interactions and spectroscopy from St. Petersburg State University, Russia. Before Columbia University, she was an Associate Professor at the Peter the Great St. Petersburg Polytechnic University, Russia. She has authored a monograph on infrared spectroscopy and more than 50 papers in peer-reviewed journals.

Dr. Maria Thornhill is Associate Professor in Environmental and Resource Engineering at the Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. Dr. Thornhill is a scientific staff representative board member for the Faculty of Engineering at NTNU; she also represents NTNU on the European Technology Platform on Sustainable Mineral Resources (ETP SMR). Her research interests span a wide range of topics related to the environment and mineral production.

Dr. Sophie Roelants currently works at the Faculty of Bioscience Engineering, Ghent University in the department Biotechnology and research group InBio.be. She also works at the Bio Base Europe Pilot Plant, which is a service provider and research institute focussing on process development and scale up of bioprocesses up to 50 m4 (biocatalysis) and 15 m4 (fermentation) scale. Her research focusses on the development of new Starmerella bombicola yeast strains producing new types of biosurfactants and developing processes for the production of these new compounds, while also exploring their application potential. She has authored a more than 30 papers in peer-reviewed journals.

Prof. Dr. ir. Wim Soetaert, is an industrial biotechnology and biorefining specialist, who spent 13 years in the carbohydrate processing industry as a research director in Germany and France, for the sugar group Pfeifer & Langen and the wheat processing company Chamtor, before joining UGent as a full professor. He has been active at InBio.be in the field of industrial biotechnology and downstream processing, specifically in the field of biosynthesis of specialty carbohydrate and biosurfactants. Prof. Soetaert is the founder of InBio.be, founder and director of the Bio Base Europe Pilot Plant, an open innovation pilot plant for the development of biobased products. He is also the founder of Flanders Biobased Valley, a networking organization for the biobased economy in Flanders. He is a founder and executive chairman of Inbiose NV, a Ghent University spin-off company active in the field of specialty carbohydrate synthesis.

Dr. Hanumantha Rao Kota is a Professor of Mineral Engineering at the Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. He is also an Adjunct Professor at the School of Mineral Processing and Bioengineering, Central South University, Changsha, China. Prior to NTNU, he worked at the Division of Mineral Processing of Luleå University of Technology (LTU), Luleå, Sweden, from 1985 to 2014 and since 2003 as a Professor of Mineral Processing. He has authored more than 175 scientific papers published in peer-reviewed high impact journals and international conference proceedings. Dr. Rao's major research activity is in the area of Applied Surface Science relevent to Mineral Processing Technology. His research interests include surface and pulp chemistry of flotation; flotation of sulphide, industrial, silicate and iron minerals; molecular modelling; minerals bioprocessing and coal preparation.

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Received: 2019-06-17
Accepted: 2019-07-08
Published Online: 2019-10-01
Published in Print: 2019-09-16

© 2019, Carl Hanser Publisher, Munich

Artikel in diesem Heft

  1. Contents/Inhalt
  2. Contents
  3. Microbial Synthesis
  4. Production of Non-Toxic Biosurfactant – Surfactin – Through Microbial Fermentation of Biomass Hydrolysates for Industrial and Environmental Applications
  5. Characterisation Novel Biosurfactants
  6. Structures and Properties of Sophorolipids in Dependence of Microbial Strain, Lipid Substrate and Post-Modification
  7. Personal Care/Cleansing
  8. Amino-Acid Surfactants in Personal Cleansing (Review)
  9. Toward Milder Personal Care Cleansing Products: Fast ex vivo Screening of Irritating Effects of Surfactants on Skin Using Raman Microscopy
  10. Textile Surface Modification
  11. Surface Characterization of Textiles for Optimization of Functional Polymeric Nano-Capsule Attachment
  12. Enhanced Oil Recovery and Oil-Spill Dispersants
  13. Pseudo-Gemini Biosurfactants with CO2 Switchability for Enhanced Oil Recovery (EOR)
  14. Hydrophilic-Lipophilic-Difference (HLD) Guided Formulation of Oil Spill Dispersants with Biobased Surfactants
  15. Mineral Processing
  16. Floatability of Chalcopyrite by Glycolipid Biosurfactants as Compared to Traditional Thiol Surfactants
  17. Antimicrobial Properties
  18. Stability of Emulsions and Nanoemulsions Stabilized with Biosurfactants, and their Antimicrobial Performance against Escherichia coli O157:H7 and Listeria monocytogenes
https://doi.org/10.3139/113.110639
Schlagwörter für diesen Artikel
Adsorption; glycolipids; chalcopyrite; hallimond flotation; n-butoxycarbonyl-o-n-butyl thionocarbamate (BBT); sodium isobutyl xanthate (SIBX) and disecondary butyl dithiophosphate (DBD)

Artikel in diesem Heft

  1. Contents/Inhalt
  2. Contents
  3. Microbial Synthesis
  4. Production of Non-Toxic Biosurfactant – Surfactin – Through Microbial Fermentation of Biomass Hydrolysates for Industrial and Environmental Applications
  5. Characterisation Novel Biosurfactants
  6. Structures and Properties of Sophorolipids in Dependence of Microbial Strain, Lipid Substrate and Post-Modification
  7. Personal Care/Cleansing
  8. Amino-Acid Surfactants in Personal Cleansing (Review)
  9. Toward Milder Personal Care Cleansing Products: Fast ex vivo Screening of Irritating Effects of Surfactants on Skin Using Raman Microscopy
  10. Textile Surface Modification
  11. Surface Characterization of Textiles for Optimization of Functional Polymeric Nano-Capsule Attachment
  12. Enhanced Oil Recovery and Oil-Spill Dispersants
  13. Pseudo-Gemini Biosurfactants with CO2 Switchability for Enhanced Oil Recovery (EOR)
  14. Hydrophilic-Lipophilic-Difference (HLD) Guided Formulation of Oil Spill Dispersants with Biobased Surfactants
  15. Mineral Processing
  16. Floatability of Chalcopyrite by Glycolipid Biosurfactants as Compared to Traditional Thiol Surfactants
  17. Antimicrobial Properties
  18. Stability of Emulsions and Nanoemulsions Stabilized with Biosurfactants, and their Antimicrobial Performance against Escherichia coli O157:H7 and Listeria monocytogenes
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