Measurement of contact angle of copper-bearing shales using the captive bubble method
More details
Hide details
Department of Geoengineering, Mining and Geology, Wroclaw University of Technology (WUT), Poland
Mining Science 2014;21:83-94
This paper describes the measurement of contact angle of the natural surface of copper-bearing shales immersed in solutions of selected reagents of various concentrations using captive bubble method. It demonstrates that the copper-bearing shales coming from Legnicko-Głogwski Copper Region develop natural hydrophobic properties in surfactant (frother) solutions and its hydrophobicity decreases from 82⁰ contact angle in distilled water, 78⁰ in C4E1 solutions, 76⁰ in C4E2 solutions, to 75⁰ in dodecylphenol solutions. These data show that the addition of frother causes a decrease of shale hydrophobicity but it can reduce stability of the thin film between the grain and air bubble. It means that flotation of copperbearing shales in the presence of frother will only be possible provided specific concentrations.
ADAMSON A.W., 1967. Psychical chemistry of surfaces, 3 rd edition. New York: John Wiley & Sons.
AVEYARD R., CLINT J. H., 1995. Liquid droplets and solid particles at surfactant solution interfaces. J. Chem. Soc., Faraday Trans., 91, 2681–2697.
DRZYMAŁA J., 2007, Mineral Processing, foundations of theory and practice of minerallurgy. Oficyna Wydawnicza Politechniki Wrocławskiej.
DRZYMAŁA J., KUCAL J., KOZŁOWSKI A., 2002. Flotation of copper ore from Lubin by means of collectors used as coal flotation promoters. Scientific Papers of Mining Institute of Wrocław University of Technology. Mining and Geology, Wrocław.
DRZYMALA, J., BIGOSINSKI, J., 1995, Collectorless flotation of sulfides occurring in the Fore-Sudetic copper minerals deposit of SW Poland, Mineralogia Polonica, 26(1), 63–73.
GRODZKA J., POMIANOWSKI A. 2006, Wettability Versus Hydrophilicity, Physicochemical Problems of Mineral Processing, 40, 5-18.
JAŃCZUK B., SZYMCZYK K., WÓJCIK W., 2005, The impact of surfactants on the wettability of low energy hydrophobic solids, Wiadomości Chemiczne, (59), 5-6, s. 489-509.
KIJEWSKI P., JAROSZ J., 1987. Ore mineralization and the forms of occurrence of accompanying elements in copper ore deposits. Accompanying metals in copper ore deposits, current state of research, and perspectives for their future use. Kijewski P., Ed. Wrocław Cuprum, pp. 21–47.
LASKOWSKI J., ŁUSZCZKIEWICZ A., 198 Mineral processing. Concentration of minerals. Wrocław University of Technology.
ŁUSZCZKIEWICZ A., 2000. Utilization of fraction of black copper-bearing shales from ore coming from Lubińsko-Glogowski Region. Conference paper I 11/00/I-050, Scientific Seminar, Polkowice, Lubin.
ŁUSZCZKIEWICZ A., CZECHOWSKI F., 1993. Separation of shale concentrates from copper ore deposits in Lubin and behaviour of accompanying elements in heat processing of these concentrates. Mineralogical Society of Poland, Specific Studies, Bulletin no 3.
OSIKA R., 1983. Copper-bearing formations in Poland, Kraków.
PHOENIX, 2006. Operating manual of Phoenix-series equipment based on „Administrative Hardware Guide Phoenix 150/300 version 5.0 2011.5”. Haas Thermal and Surface Analysis.
RATAJCZAK T., DRZYMAŁA J., 2003. Salt flotation. Oficyna Wydawnicza Wrocław University of Technology.
SZYSZKA D., 2012, Study of contact angle of liquid on solid surface and solid on liquid surface, Scientific Papers of the Institute of Mining of the Wroclaw University of Technology. Mining and Geology, XVIII, (currently Mining Science ISSN 2300-9586).
Journals System - logo
Scroll to top