Pyrite recovery mechanisms in coal flotation

International Journal of Mineral Processing

Volumn 50, Issue 3, 1997, Pages 187-201

  Kawatra, S K ^a   Eisele, T C ^a  

^a Michigan Technological University   (United States)

Author keywords

Coal flotation; Pyrite hydrophobicity; Pyrite removal; Sulfur removal

Indexed keywords

COAL; FLOTATION; SURFACE ACTIVE AGENTS;

COAL FLOTATION; DEPRESSANTS; HYDROPHOBICITY; PYRITE REMOVAL;

PYRITES;

COAL; FLOTATION; RECOVERY TECHNIQUE;

EID: 0031204034     PISSN: 03017516     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0301-7516(97)00012-4     Document Type: Article

References (37)

1. Ahlberg, E., Forssberg, K.S.E., Wang, X., 1990. The surface oxidation of pyrite in alkaline solution. J. Appl. Electrochem. 20, 1033-1039.
2. Arnold, B.J. and Aplan, F.F., 1990. The use of pyrite depressants to reduce the sulfur content of Upper Freeport Seam coal. In: R. Markuszewski and T.D. Wheelock (Editors), Processing and Utilization of High-Sulfur Coals, III. Elsevier, Amsterdam, pp. 171-186.
3. ASTM, 1988a. Standard Test Method for Ash in the Analysis Sample of Coal and Coke from Coal. 1988 Annual Book of ASTM Standards, Vol. 5.05 (gaseous fuels; coal and coke). American Society for Testing and Materials, Standard No. D3174-82.
4. ASTM, 1988b. Standard Test Method for Forms of Sulfur in Coal. 1988 Annual Book of ASTM Standards, Vol. 5.05 (gaseous fuels; coal and coke). American Society for Testing and Materials, Standard No. D2492-84.
5. Baker, A.F. and Miller, K.J., 1971. Hydrolyzed Metal Ions as Pyrite Depressants in Coal Flotation: A Laboratory Study. U.S. Bureau of Mines, Report of Investigations RI 7518.
6. Chander, S. and Aplan, F.F., 1989. Surface and Electrochemical Studies in Coal Cleaning. Final Report to the U.S. Department of Energy, DOE?PC/80523-T11 (DE 90007603).
7. Chernosky, F.J., Lyon, F.M., 1972. Comparison of the flotation and adsorption characteristics of ore and coal-pyrite with ethyl xanthate. AIME Trans. 252, 11-14.
8. Chmielewski, T. and Wheelock, T.D., 1991. Thioglycolic acid as a flotation depressant for pyrite. In: P.R. Dugan, D.R. Quigley and Y.A. Attia (Editors), Processing and Utilization of High-Sulfur Coals, IV. Elsevier, Amsterdam, pp. 295-308.
9. Chou, C.-L., 1990. Geochemistry of Sulfur in Coal, Geochemistry of Sulfur in Fossil Fuels. ACS Symposium Series No. 429, American Chemical Society.
10. Dankwerts, P.V., 1953. Continuous flow systems: distribution of residence times. Chem. Eng. Sci. 2, 11-14.
11. Drzymala, J., Markuszewski, R., Wheelock, T.D., 1991. Oil agglomeration of sulfurized pyrite. Miner. Eng. 4 (2), 161-172.
12. Eisele, T.C. and Kawatra, S.K., 1993. The use of horizontal baffles to improve the effectiveness of column flotation of coal. Proc. XVIII International Mineral Processing Congress, Sydney, 23-28 May, pp. 771-778.
13. Elzeky, M., Attia, Y.A., 1987. Coal slurry desulfurization by flotation using thiophilic bacteria for pyrite depression. Coal Prep. 5, 15-37.
14. Feeley, T.J., 1991. Coal surface control for advanced physical beneficiation. In: P.R. Dugan, D.R. Quigley and Y.A. Attia (Editors), Processing and Utilization of High-Sulfur Coals, IV. Elsevier, Amsterdam, pp. 195-204
15. Fuerstenau, D.W., Diao, J., Hanson, J.S., 1990. Estimation of the distribution of surface sites and contact angles on coal particles from film flotation data. Energy Fuels 4, 34-37.
16. Hirt, W.C., 1973. Separation of Pyrite from Coal by Froth Flotation. Unpublished Master's thesis, Pennsylvania State University.
17. Kawatra, S.K., Eisele, T.C., 1992a. Removal of pyrite in coal flotation. Miner. Process. Extract. Metall. Rev. 8, 205-218.
18. Kawatra, S.K. and Eisele, T.C., 1992b. Pyrite recovery mechanisms in coal flotation. Presented at the SME Annual Meeting, Phoenix, Ariz., Feb. 24-27, Preprint No. 92-64.
19. Kawatra, S.K., Eisele, T.C., 1995a. Laboratory baffled-column flotation of mixed lower/middle Kittanning Seam bituminous coal. Miner. Metall. Process. 2 (2), 103-107.
20. Kawatra, S.K., and Eisele, T.C., 1995b. Baffled-column flotation of a coal plant fine-waste stream. Miner. Metall. Process., 12(3: 138-142.
21. Kawatra, S.K., Eisele, T.C. and Johnson, H., 1991. Recovery of liberated pyrite in coal flotation: entrainment or hydrophobicity? In: P.R. Dugan, D.R. Quigley and Y.A. Attia (Editors), Processing and Utilization of High-Sulfur Coals, IV. Elsevier, Amsterdam, pp. 255-277.
22. Laskowski, J., Bastin, M., Moon, K.S. and Sirois, L.L. 1985. Desulfurizing flotation of eastern Canada high-sulfur coal. In: Y.A. Attia (Editor), Coal Science and Technology, 9. Processing and Utilization of High-Sulfur Coals. Elsevier, Amsterdam, pp. 247-266.
23. Leja, J., 1982. Surface Chemistry of Froth Flotation. Plenum Press, New York.
24. Liu, D., Somasundaran, P. and Duby, P.F., 1993. Electrochemical equilibria in coal flotation systems and their role in determining the interfacial properties of pyrite and its separation from coal. In: B.K. Parekh and J.G. Groppo (Editors), Processing and Utilization of High-Sulfur Coals, V. Elsevier, Amsterdam, pp. 47-54.
25. Luo, S., McClelland, J.F. and Wheelock, T.D. 1993. The interaction of thioglycolic acid and pyrite. In: Parekh and Groppo (Editors), Processing and Utilization of High-Sulfur Coals, V. Elsevier, Amsterdam, pp. 55-70.
26. Lynch, A.J., Johnson, N.W., Manlapig, E.V. and Thorne, C.G., 1981. Mineral and coal flotation circuits: their simulation and control. Elsevier, Amsterdam.
27. Miller, J.D., Lin, C.L., 1986. Characterization of pyrite in products from the reverse flotation of coal,. Coal Prep. 2, 243-261.
28. Miller, J.D., Ye, Y., Jin, R., 1989. Improved pyrite rejection by chemically-modified fine coal flotation. Coal Prep. 6, 151-166.
29. Purcell, R.J.Jr. and Aplan, F.F., 1991. Pyrite and ash depression during coal flotation by flotation rate, recovery, and reagent control. In: P.R. Dugan, D.R. Quigley and Y.A. Attia (Editors), Processing and Utilization of High-Sulfur Coals, IV. Elsevier, Amsterdam, pp. 279-293.
30. Raleigh, C.E. and Aplan, F.F., 1993. The use of mineral matter dispersants and depressants during the flotation of bituminous coals. In: B.K. Parekh and J.G. Groppo (Editors), Processing and Utilization of High-Sulfur Coals, V. Elsevier, Amsterdam, pp. 71-90.
31. Stock, L.M. and Wolny, R., 1990. Elemental sulfur in bituminous coals. Geochemistry of Sulfur in Fossil Fuels, ACS Symposium Series No. 429, American Chemical Society.
32. Townsley, C.C., Atkins, A.S., 1986. Comparative coal fines desulphurization using the iron oxidising bacterium Thiobacillus ferrooxidans and the yeast Saccharomyces cerevisiae during simulated froth flotation. Process Biochem. 21 (6), 188-191.
33. Wadsworth, M.E., Zhu, X., Li, J., Zhong, T., Hu, W. and Bodily, D.M., 1992. Surface electrochemical control for fine coal and pyrite separation. Proc. 8th Annual Pittsburgh Coal Conference, Pittsburgh, Penn., pp. 404-411.
34. Wang, D., Adel, G.T., Yoon, R.-H., 1993. Image analysis characterization of pyrite in fine coal flotation. Miner. Metall. Process. 10 (3), 154-159.
35. Whelan, P.F., Brown, D.J., 1956. Particle-bubble attachment in froth flotation. Bull. Inst. Min. Metall. 591, 181-192.
36. Yancey, H.F. and Taylor, J.A., 1935. Froth Flotation of Coal: Sulphur and Ash Reduction. U.S. Bureau of Mines, Report of Investigations, RI 3263.
37. Ye, Y., Liu, Y., Miller, J.D. and Fuerstenau, C.D., 1990. Preliminary analysis of pyrite rejection during chemically modified fine coal flotation by conditioning with monopersulfate. In: R. Markuszewski and T.D. Wheelock (Editors), Processing and Utilization of High-Sulfur Coals, III. Elsevier, Amsterdam, pp. 159-170.