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Tytuł artykułu

The use of ultra-flocculation in optimization of the experimental flocculation procedures

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Języki publikacji
EN
Abstrakty
EN
The use of sea water in the flotation of Cu-Mo sulfide ores requires better understanding of the effect of electrolyte concentration on performance of flocculants used in the solid/liquid separation unit operations. This paper deals with optimisation of the experimental procedure that will be used in studying the effect of sea water on flocculation. In the tests reported in this paper the tailings from one of Chile major flotation plants were subjected to the flocculation tests with Orifloc-2010 polyacrylamide in a Couette type reactor. It was shown that the flocculation efficiency can be dramatically improved by optimising the shear rate in the reactor, and that the procedure based on the ultra-flocculation can be used as a standardized experimental procedure in testing flocculants.
Rocznik
Tom
Strony
5--16
Opis fizyczny
Bibliogr. 26 poz.
Twórcy
autor
autor
  • Institute of Biocolloid Chemistry, National Academy of Sciences of Ukraine, Kiev, Ukraine
Bibliografia
  • 1. Coe, K.S., Clevenger, G.H., 1916. Method of determining the capacity of slime settling tanks, Trans. AIME 55, 203-210.
  • 2. Ding, K.J., Laskowski, J.S., 2007. Effect of conditioning on selective flocculation with polyacrylamide in the coal reverse flotation, Trans. IMM 116, 108-114.
  • 3. Farrow, J.B., Swift, J.D., 1996. A new procedure for assessing the performance of flocculants, Int. J. Mineral Process. 46, 263-275.
  • 4. Ferrera, V., Arinaitwe, E., Pawlik, M., 2009. A role of flocculant conformation in the flocculation process, Advances in Mineral Processing Science and Technology -Proc. 7th UBC-McGill-UA Symposium (C.O. Gomez, J.E. Nesset and S.R. Rao, eds.), Metallurgical Society of CIM, 397-408.
  • 5. Gregory, J., Nelson, D.W., 1984. A new method for flocculation monitoring. Solid-Liquid Sparation (J. Gregory, Ed.) Ellis Horwood, Chichester, 172-182.
  • 6. Henderson, J.M., Wheatley, A.D., 1987. Factors affecting the efficient flocculation of tailings by polyacrylamides, Coal Preparation 4, 1-41.
  • 7. Hogg, R., Brunnaul, P., Suharyono, H., 1993. Chemical and physical variables in polymer-induced flocculation, Mineral and Metallurg. Processing 10, 81-85.
  • 8. Hogg, R., 1999. Polymer adsorption and flocculation, Polymers in Mineral Processing –Proc. 3rd UBC-McGill Int. Symp. (J.S. Laskowski, ed.), Metalurgical Society of CIM, Quebec City, 1999, 3-17.
  • 9. Keys, R.O. and Hogg, R., 1979. Mixing problems in polymer flocculation, AIChE Symp. Series 75(190), 63-72.
  • 10. Kitchener, J.A., 1978. Flocculation in mineral suspensions, The Scientific Basis of Flocculation (K.J. Ives, ed.), Sijthoff & Noordhoff, 283-328.
  • 11. Michael A.S., Bolger, J.C., 1962. Settling rates and sediment volumes of flocculated kaolin suspentsions, Ind. Eng. Chem. Fundam 1, 24-33.
  • 12. Owen, A.T., Nguyen, T.V. Fawell, P.D., 2009. The effect of flocculant solution transport and addition conditions on feedwell performance in gravity thickeners, Int. J. Mineral Processing 93, 115-127.
  • 13. Pawlik, M., Laskowski, J.S. Ansari, A., 2003. Effect of carboxymethyl cellulose and ionic strength on stability of mineral suspensions in potash ore flotation systems, J. Coll. Interf. Sci. 260, 251-258.
  • 14. Pawlik, M., Laskowski, J.S., 2006. Stabilization of mineral suspensions by guar gum in potash ores flotation systems, Canadian J. Chem. Eng. 84, 532-538.
  • 15. Ma, X. Pawlik, M., 2007. Adsorption of guar gum on potash slimes, Canadian Metall. Quarterly 46, 321-328.
  • 16. Ma, X., Pawlik, M., 2007. Intrinsic viscosities and Huggins constants of guar gum in alkali metal chloride solutions, Carbohydrate Polymers 70, 15-24.
  • 17. Richardson, J.F., Zaki, W.N., 1954. Sedimentation and fluidization: Part I. Trans. Inst. Chem. Eng. 32, 35-53.
  • 18. Rulyov, N.N., Maes, A., Korolyov, V. J., 2000. Optimization of hydrodynamic treatment regime in the processes of sorption-flocculation water purification from organic contaminants, Colloids & Surfaces A: 175, 371-381.
  • 19. Rulyov, N.N., 1999. Application of ultra-flocculation and turbulent micro-flotation to the removal of fine contaminants from water, Colloids & Surfaces A: 151, 283-291.
  • 20. Rulyov, N.N., 2004. Utra-flocculation: Theory, experiment and applications. Particle Size Enlargement in Mineral Processing - Proc.5th UBC McGill Int. Symp. Fundamentals of Mineral Processing (J.S. Laskowski, ed.), CIM Metall. Soc., Hamilton, 197-214.
  • 21. Rulyov, N.N., Dontsova, T.A., Korolyov, V.Ja., 2005a. Ultra-flocculation of diluted fine dispersed suspensions, Miner. Process. Extr. Metall. Rev. 26, 203 – 217.
  • 22. Rulyov, N.N., Dontsova, T.A., Nebesnova, T.V., 2005b. The pair binding energy of particles and flocs size formed in turbulent flow, Khimya i Tekhnologia Vody, 27(1), 1-17.
  • 23. Rulyov, N.N., Korolyov, B.Y., Kovalchuk, N.M., 2009. Ultra-flocculation of quarto suspension: effects of shear rate, dispersion and solids concentration, Trans. IMM 118, 175-181.
  • 24. Scheiner, B.J., Smelley, A.G., Stanley, D.A., 1985. Dewatering of Mineral Waste Using the Flocculant Polyethylene Oxide, U.S. Bureau of Mines Bulletin 681.
  • 25. Sworska, A., Laskowski, J.S., Cymerman, G., 2000. Flocclation of the Syncrude Fine Tailings, Part I: Effect of pH, Polymer Dosage and Mg2+ and Ca2+ Cations, Int. J. Miner. Process. 60, 143-152; Flocculation of the Syncrude Fine Tailings, Part II: Effect of Hydrodynamic Conditions, Int. J. Miner. Process. 60, 153-161.
  • 26. Xu, Y., Cymerman, G., 1999. Flocculation of fine oil sand tails, Polymers in Mineral Processing –Proc. 3rd UBC-McGill Int. Symp. (J.S. Laskowski, ed.), Metalurgical Society of CIM, Quebec City, 591-604.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT2-0003-0028
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