Influence of synergistic effect between dodecylamine and sodium oleate on improving the hydrophobicity of fluorapatite

• Autorzy: Cao Q. , Luo B. , Wen S. , Cheng J.

Identyfikatory

DOI

10.5277/ppmp170104

• Języki publikacji: EN

Abstrakty

EN

The influence of synergistic effect between dodecylamine (DDA) and sodium oleate (NaOl) on the hydrophobicity of fluorapatite (FA) was investigated with contact angle, surface tension, XPS and zeta potential studies. The role of pH and the mixing ratio of surfactants on the synergistic behavior were considered. Basing on the contact angle results the suitable pH for the NaOl-DDA mixture was pH 9.5. A further study indicated that the 3:7 DDA-NaOl mixtures could notably improve the contact angle comparing to that only with DDA or NaOl. In the solution of this mixture, the DDA cation and DDA molecule both adsorb at the FA surface as revealed by the XPS spectra results. The zeta potential analysis further suggested that the adsorption of oleate at the FA surface was also improved. The presence of DDA cation and DDA molecule was expected to result in a uniform packing of surfactants at the FA surface.

Słowa kluczowe

EN

fluorapatite; hydrophobicity; synergistic effect; mixed collector

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2017
• Tom: Vol. 53, iss. 1
• Strony: 42--55
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Cao Q.

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, 650093, Yunnan, PR China
• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, PR China

autor

Luo B.

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, PR China

autor

Wen S.

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, PR China

autor

Cheng J.

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, PR China

Bibliografia

• ALEXANDROV L., RAO K.H., FORSBERG K.S.E., GRIGOROV L., PUGH R.J., 2009. Three-phase contact parameters measurements for silica-mixed cationic-anionic surfactant systems. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 348(1-3), 228-233.
• ANANTHAPADMANABHAN, K.P., SOMASUNDARAN, P., 1998. Acid-soap formation in aqueous oleate solutions. Journal of Colloid & Interface Science, 122(1), 104-109.
• CAO Q., CHENG J., WEN S., LI C., BAI S., LIU D., 2015. A mixed collector system for phosphate flotation. Minerals Engineering, 78, 114-121.
• CHERNYSHOVA I.V., RAO K.H., 2001. Mechanism of coadsorption of long-chain alkylamines and alcohols on silicates. Fourier transform spectroscopy and X-ray photoelectron spectroscopy studies. Langmuir, 17(9), 2711-2719.
• EJTEMAEI M., IRANNAJAD M., GHARBAGHI M., 2011. Influence of important factors on flotation of zinc oxide mineral using cationic, anionic and mixed (cationic/anionic) collectors. Minerals Engineering, 24(13), 1402-1408.
• FUERSTENAU D.W., PRADIP, 2005, Zeta potentials in the flotation of oxide and silicate minerals. Advances in Colloid & Interface Science, 114-115(30), 9-26. .
• GE Y.Y., GAN S.P., ZENG X.B., YU Y.F., 2008. Double reverse flotation process of collophanite and regulating froth action. T Nonferr Metal Soc, 18(2), 449-453.
• GUIMARAES R.C., ARAUGO A.C., PERES A.E.C., 2005. Reagents in igneous phosphate ores flotation. Minerals Engineering, 18(2), 199-204.
• HANUMANTHA RAO K., FORSSBERG K., 1997. Mixed collector systems in flotation. International Journal of Mineral Processing, 51(1-4), 67-79.
• HU Y., XU Z., 2003. Interactions of amphoteric amino phosphoric acids with calcium-containing minerals and selective flotation. International Journal of Mineral Processing, 72(1-4), 87-94.
• LU Y., DRELICH J., MILLER J.D., 1998. Oleate Adsorption at an Apatite Surface Studied by Ex-Situ FTIR Internal Reflection Spectroscopy. Journal of Colloid and Interface Science, 202(2), 462-476.
• SIS H., CHANDER S., 2003a. Adsorption and contact angle of single and binary mixtures of surfactants on apatite. Minerals Engineering, 16(9), 839-848.
• SIS H., CHANDER S., 2003b. Reagents used in the flotation of phosphate ores: a critical review. Minerals Engineering, 16(7), 577-585.
• SIS H., CHANDER S., 2003c. Improving froth characteristics and flotation recovery of phosphate ores with nonionic surfactants. Minerals Engineering, 16(7), 587-595.
• VIDYADHAR A., HANUMANTHA RAO K., 2007. Adsorption mechanism of mixed cationic/anionic collectors in feldspar-quartz flotation system. Journal of Colloid and Interface Science, 306(2), 195-204.
• VUCINIC D.R., RADULOVIC DEUSIC S.D., 2010. Electrokinetic properties of hydroxyapatite under flotation conditions. Journal of Colloid and Interface Science, 343(1), 239-245.
• WANG D., HU Y., 1988. Solution chemistry of Flotation. Hunan Science and Technology Press, China. 31-37.
• WANG L., SUN W., HU Y.-H., XU L.-H., 2014. Adsorption mechanism of mixed anionic/cationic collectors in Muscovite – Quartz flotation system. Minerals Engineering, 64(1), 44-50.
• WANG X., LIU J., DU H., MILLER J.D., 2010. States of Adsorbed Dodecyl Amine and Water at a Silica Surface As Revealed by Vibrational Spectroscopy. Langmuir, 26(5), 3407-3414.
• XU L., WU H., DONG F., WANG L., WANG Z., XIAO J., 2013. Flotation and adsorption of mixed cationic/anionic collectors on muscovite mica. Minerals Engineering, 41(2), 41-45.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).