Operating Parameters in the Column Flotation of Alabama Oil Shale
A factionally designed experiment performed in a one meter column flotation cell identified the important factors affecting the flotation of eastern oil shales. These initial tests were performed in a batch mode, and as a result, the effect of certain operating variables was observed.
Several series of tests were performed in the same cell operating in a continuous, i.e. equilibrium, mode. In the course of optimizing the separation, operating conditions were established which are outside the normal realm of column cell operations. Preferred conditions included positioning the pulp-froth interface below the midpoint of the column and introducing feed into the froth phase rather than into the pulp.
A third generation of experiments were performed in a variable height column. This configuration has allowed independent evaluations of froth height, feed positioning, spray water addition and froth drainage.
KeywordsColumn Height Froth Height Concentrate Grade Feed Inlet Froth Drainage
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- 1.Schultz, C.W., John B. Bates, and M. Misra, “Column Flotation of Eastern Oil Shales”.Google Scholar
- 2.Sastry, Kal V.S., and Kevin D. Loftus, “Mathematical Modeling and Computer Simulation of Column Flotation,” Column Flotation 88. Proceedings of an International Symposium on Column Flotation. K.V.S. Sastry, Editor, Society of Mining Engineers, Littleton, CO, 1988, pp. 57–68.Google Scholar
- 3.Attia, Y.A. and Shaning, Yu, “Feasibility of Separation of Coal Flocs by Column Flotation,” Column Flotation 88, Proc. etc, pp. 249–254.Google Scholar
- 4.Ynchousti, R.A., J.D. McKay and D.G. Foot, “Column Flotation Parameters-Their Effects,” Column Flotation 88. Proceedings, etc., pp. 157–172. 392Google Scholar
- 5.Yang, D.C., “Static Tube Flotation for Fine Coal Cleaning,” Proceedings of the Sixth International Symposium on Coal Slurry, Combustion and Technology, 1984, pp. 582–597.Google Scholar
- 6.Yang, D.C., Private CommunicationGoogle Scholar