contents volume 79, 2006

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Contents Volume 79, 2006

Research papers

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Chemistry of acid production in black coal mine washery wastesS. Devasahayam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Coal preparation plant optimization: A critical review of the existing methodsV. Gupta and M.K. Mohanty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Effect of the bubble size on the dynamic adsorption of frothers and collectors in flotationA.V. Nguyen, C.M. Phan and G.M. Evans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acid leaching of ash and coal: Time dependence and trace element occurrencesM. Paul, M. Seferinoglu, G.A. Ayclk, A. Sandstrom, M.L. Smith and J. Paul . . . . . . . . . . . . . . . . . . . . . . .

Investigations on the extraction of molybdenum and vanadium from ammonia leaching residue of spentcatalystY. Chen, Q. Feng, Y. Shao, G. Zhang, L. Ou and Y. Lu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

An empirical model for predicting flakiness in cone crushingM. Bengtsson and C.M. Evertsson . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Depression mechanisms of sodium bisulphite in the xanthate-induced flotation of copper activatedsphaleriteT.N. Khmeleva, J.K. Chapelet, W.M. Skinner and D.A. Beattie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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A.N. Banza, J. Quindt and E. Gock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Dissolution of magnesia in aqueous carbon dioxide by ultrasoundA. Kadir Mesci and Fatih Sevim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A test of the Tate equation to predict bubble size at an orifice in the presence of frotherJ.R. Hernandez-Aguilar, R. Cunningham and J.A. Finch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Utilization of Basic Oxygen Furnace (BOF) slag in the production of a hydraulic cement binderA.S. Reddy, R.K. Pradhan and S. Chandra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Microstructure characterization of mechanically activated hematite using XRD line broadeningP. Pourghahramani and E. Forssberg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Comparative study of microstructural characteristics and stored energy of mechanically activated hematite indifferent grinding environmentsP. Pourghahramani and E. Forssberg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

New collectors for sphalerite flotationR. Natarajan and I. Nirdosh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Simultaneous optimization of the performance of flotation circuits and their simplification using the jumpinggene adaptations of genetic algorithm-II: More complex problemsC. Guria, M. Varma, S.P. Mehrotra and S.K. Gupta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Modified column flotation of adsorbing iron hydroxide colloidal precipitatesF. Capponi, M. Sartori, M.L. Souza and J. Rubio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Slurry flow in mills with TCPL — An efficient pulp lifter for ag/sag millsS. Latchireddi and S. Morrell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Predicting dynamic failure of dense granules from static compression testsR.E. Maxim, A.D. Salman and M.J. Hounslow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal of cyanide from aqueous solutions by plain and metal-impregnated granular activated carbonsH. Deveci, E.Y. Yaz||c||, I. Alp and T. Uslu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adsorption and flocculation behaviors of polydiallyldimethylammonium (PDADMA) salts: Influence ofcounterionB. Tian, X. Ge, G. Pan, B. Fan and Z. Luan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Studies on flow characteristics of coal–oil–water slurry systemS. Kumar Majumder, K. Chandna, D. Sankar De and G. Kundu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flocculation improves uptake of 90Sr and 137Cs from radioactive effluentsT.K. Rout, D.K. Sengupta and L. Besra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

An extension of the particle-based approach to simulating the sedimentation of polydisperse suspensionsM. Bargie l and E.M. Tory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A MILP model for design of flotation circuits with bank/column and regrind/no regrind selectionL.A. Cisternas, D.A. Mendez, E.D. Galvez and R.E. Jorquera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Capacity and mechanism of phenol adsorption on ligniteH. Polat, M. Molva and M. Polat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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