Model for ferric sulfate leaching of copper ores containing a variety of sulfide minerals: Part I. Modeling uniform size ore fragments
Tóm tắt
A computer model was constructed for bacterial ferric sulfate leaching of the major sulfides found in porphyry copper deposits. Leaching occurs by reactions with ferric ion diffusing into the rock fragment. The model incorporates the reaction kinetics of the individual minerals and keeps material and energy balances. The model is needed to aid in the design of modifiedin situ leaching operations and combines desirable features found in previous models with extensions needed for the described study ofin situ leaching. In modeling the leaching of single ore fragments, it is shown that the rate of ferric ion generation by bacteria can limit the rate of copper recovery. The transition from kinetic to diffusion rate limitation is different for each mineral and ore fragment size. The width of the leaching reaction zone is different for each mineral, and many reaction zones cannot be considered narrow. Minerals do not leach in proportion to their concentration in ore fragments.
Tài liệu tham khảo
citation_title=Leaching and Recovery of Copper from As-Mined Materials; citation_publication_date=1980; citation_id=CR1; citation_author=L.M. Cathles; citation_author=W.J. Schlitt; citation_publisher=AIME
B.W. Madsen and M.E. Wadsworth:A Mixed Kinetics Dump Leaching Model of Ores Containing a Variety of Copper Sulfide Minerals, United States Bureau of Mines Report of Investigation 8547, Washington, DC, 1981, pp. 1-44.
citation_title=Int. Symp. on Hydrometallurgy; citation_publication_date=1972; citation_id=CR3; citation_author=R.W. Bartlett; citation_publisher=AIME
citation_journal_title=Metall. Trans. B; citation_author=H.K. Lin, H.Y. Sohn; citation_volume=18B; citation_publication_date=1987; citation_pages=497-503; citation_id=CR4
citation_title=Interfacing Technologies in Solution Mining; citation_publication_date=1982; citation_id=CR5; citation_author=L.E. Murr; citation_author=W.J. Schlitt; citation_author=L.M. Cathles; citation_publisher=AIME
B.W. Madsen and R.D. Groves:Percolation Leaching of a Chalcopyrite-Bearing Ore at Ambient and Elevated Temperatures with Bacteria, United States Bureau of Mines Report of Investigation 8827, Washington, DC, 1983, pp. 1-14.
citation_journal_title=Metall. Trans.; citation_author=R.L. Braun, A.E. Lewis, ME. Wadsworth; citation_volume=5; citation_publication_date=1974; citation_pages=1717-26; citation_doi=10.1007/BF02644133; citation_id=CR7
citation_journal_title=Metall. Trans. B; citation_author=P.B. Munoz, J.D. Miller, M.E. Wadsworth; citation_volume=10B; citation_publication_date=1979; citation_pages=149-58; citation_doi=10.1007/BF02652458; citation_id=CR8
citation_title=Ph.D. Dissertation; citation_publication_date=1970; citation_id=CR9; citation_author=D.F. Lowe; citation_publisher=University of Arizona
citation_journal_title=Can. Metall. Q.; citation_author=J.E. Dutrizac, R.J.C. MacDonald; citation_volume=11; citation_issue=3; citation_publication_date=1972; citation_pages=469-76; citation_id=CR10
citation_journal_title=Metall. Trans.; citation_author=J.E. Dutrizac, R.J.C. MacDonald, T.R. Ingraham; citation_volume=1; citation_publication_date=1970; citation_pages=3083-88; citation_id=CR11
citation_title=M.S. Thesis; citation_publication_date=1968; citation_id=CR12; citation_author=E.G. Valdez; citation_publisher=University of Utah
citation_title=Ph.D. Dissertation; citation_publication_date=1982; citation_id=CR13; citation_author=B. Pesic; citation_publisher=University of Utah
citation_journal_title=Metall. Trans. B; citation_author=J.E. Dutrizac, T.T. Chen, J.L. Jambor; citation_volume=16B; citation_publication_date=1985; citation_pages=679-93; citation_id=CR14
citation_journal_title=Metall. Trans.; citation_author=J.E. Dutrizac, R.J.C. MacDonald, T.R. Ingraham; citation_volume=1; citation_publication_date=1970; citation_pages=225-31; citation_id=CR15
citation_journal_title=Trans. SME-AIME; citation_author=B.W. Madsen, M.E. Wadsworth, R.D. Groves; citation_volume=258; citation_publication_date=1975; citation_pages=69-74; citation_id=CR16
citation_title=Ph.D. Dissertation; citation_publication_date=1976; citation_id=CR17; citation_author=J.W. Braithwaite; citation_publisher=University of Utah
citation_journal_title=J. Met.; citation_author=E.E. Malouf, J.D. Prater; citation_volume=13; citation_publication_date=1961; citation_pages=353-56; citation_id=CR18
citation_title=Discrete Numerical Methods in Physics and Engineering; citation_publication_date=1974; citation_id=CR19; citation_author=D. Greenspan; citation_publisher=Academic Press
citation_title=Solutions Minerals and Equilibrium; citation_publication_date=1965; citation_id=CR20; citation_author=R.M. Gerrolds; citation_author=C.L. Christ; citation_publisher=Harper and Row
citation_title=Ph.D. Dissertation; citation_publication_date=1976; citation_id=CR21; citation_author=P.J. Marcontonio; citation_publisher=University of Utah
citation_title=Lead-Zinc-Tin 80; citation_publication_date=1982; citation_id=CR22; citation_author=J. Dutrizac; citation_publisher=TMS-AIME