The dissolution and leaching of minerals: Mechanisms, myths and misunderstandings

Hydrometallurgy

Volumn 139, Issue , 2013, Pages 132-148

  Crundwell, F K ^a  

^a Killarney Mall   (South Africa)

Author keywords

Dissolution; Gold; Leaching Electrochemical mechanism of dissolution; Pyrite; Pyrrhotite Chalcopyrite; Sphalerite

Indexed keywords

DISSOLUTION OF MINERALS; DISSOLUTION REACTIONS; ELECTRICAL CONDUCTORS; ELECTROCHEMICAL MECHANISMS; OXIDATION AND REDUCTION; PYRRHOTITE CHALCOPYRITE; RATE OF DISSOLUTIONS; SPHALERITE;

ANODIC OXIDATION; GOLD; LEACHING; MINERALS; PYRITES; ZINC SULFIDE;

DISSOLUTION;

EID: 84884248985     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.hydromet.2013.08.003     Document Type: Article

References (77)

1. E. Alhberg, and A.E. Broo Electrochemical reaction mechanisms at pyrite in acidic perchloric solutions F.M. Doyle, P.E. Richardson, R. Woods, Electrochemistry in Mineral and Metal Processing IV 1996 The Electrochemical Society Pennington, New Jersey 119 130
2. J.E. Anderson, J. Halpern, and C.S. Samis The pressure oxidation of galena in alkaline solutions Trans. Am. Inst. Min. Metall. Eng. 197 1963 554 561
3. T.N. Angelidis, K.A. Kydros, and K.A. Matis A fundamental rotating disk study of gold dissolution in iodine-iodide solutions Hydrometallurgy 34 1993 49 64
4. L.K. Bailey, and E. Peters Decomposition of pyrite in acids by pressure leaching and anodization: the case for an electrochemical mechanism Can. Metall. Q. 15 1976 333 344
5. V.I.E. Bruyere, and M.A. Buesa Acidic and reductive dissolution of magnetite in aqueous sulphuric acid J. Electroanal. Chem. 182 1985 141 156
6. A.R. Burkin The Chemistry of Hydrometallurgical Processes 1966 E&FN Spon London 48
7. J.A.V. Butler A kinetic theory of reversible oxidation potentials in inert electrodes Trans. Faraday Soc. 19 1924 734 739
8. J.A.V. Butler The mechanism of overvoltage and its relation to the combination of hydrogen atoms at metal electrodes 28 1932 379 382
9. V.S.T. Ciminelli, and K. Osseo-Asare Kinetics of pyrite oxidation in sodium hydroxide solutions Metall. Trans. 26B 4 1995
10. I.J. Corrans, and M.T. Scholtz A kinetic study of the leaching of pentlandite in acidic ferric sulphate solutions J SAIMM 76 1976 403 411
11. F.K. Crundwell Kinetics and mechanism of the oxidative dissolution of a zinc sulphide concentrate in ferric sulphate solutions Hydrometallurgy 19 1987 227 242 (Pubitemid 18606376)
12. F.K. Crundwell Effect of iron impurity in zinc sulphide concentrates on the rate of dissolution AICHE J. 34 1988 1128 1134
13. F.K. Crundwell The influence of the electronic structure of solids on the anodic dissolution and leaching of semiconducting sulphide minerals Hydrometallurgy 21 1988 155 190
14. F.K. Crundwell The Role of Charge-transfer Mechanisms in the Oxidative and Non-oxidative Dissolution of Sphalerite (Ph.D. Thesis) 1988 University of the Witwatersrand Johannesburg
15. F.K. Crundwell The indirect mechanism of bacterial leaching Miner. Process. Extr. Metall. Rev. 19 1998 117 128
16. F.K. Crundwell, and S.A. Godorr A mathematical model of the leaching of gold in cyanide solutions Hydrometallurgy 44 1997 147 162 (Pubitemid 127415780)
17. F.K. Crundwell, and B. Verbaan Kinetics and mechanism of the non-oxidative dissolution of sphalerite Hydrometallurgy 17 1987 369
18. F.K. Crundwell, and B. Verbaan Kinetics and mechanisms of the non-oxidative dissolution of sphalerite (zinc sulphide) Hydrometallurgy 17 1987 369 384 (Pubitemid 17573376)
19. F.K. Crundwell, M.S. Moats, V. Ramachandran, T.G. Robinson, and W.G. Davenport Extractive Metallurgy of Nickel, Cobalt, and the Platinum Group Metals 2011 Elsevier London
20. M.J. Dry Kinetics of Leaching a Low Grade Matte in Ferric Sulphate Solution (Ph.D. Thesis) 1984 University of the Witwatersrand Johannesburg
21. M.J. Dry, and A.W. Bryson Kinetics of leaching of a low-grade Fe-Ni-Cu-Co matte in ferric sulphate solution Hydrometallurgy 18 1987 155 181 (Pubitemid 17602644)
22. J.E. Dutrizac The dissolution of sphalerite in ferric sulfate media Metall. and Mater. Trans. B 37 2006 161 171
23. J.E. Dutrizac, and R.J.C. MacDonald The dissolution of sphalerite in ferric chloride solutions Metall. Trans. B 9B 1978 543 551 (Pubitemid 9448380)
24. F. Elgersma, G.F. Kamst, G.J. Witkamp, and G.M. van Rosmalen Acid dissolution of zinc ferrite Hydrometallurgy 29 1992 173 189
25. T. Erdey-Grusz, and M. Volmer Zur theorie der wasserstoffuberspannung Z. Phys. Chem. 150A 1930 203 213
26. D. Filippou, R. Konduru, and G.P. Demopoulos A kinetic study on the acid pressure leaching of pyrrhotite Hydrometallurgy 47 1997 1 18 (Pubitemid 127413007)
27. Fowler, T.A., 2000. Ph.D. Thesis, University of the Witwatersrand, Johannesburg
28. T.A. Fowler, and F.K. Crundwell Leaching of zinc sulfide by Thiobacillus ferrooxidans: experiments with a controlled redox potential indicate no direct bacterial mechanism Appl. Environ. Microbiol. 64 1998 3570 3575 (Pubitemid 28462942)
29. T.A. Fowler, P.R. Holmes, and F.K. Crundwell The mechanism of the dissolution of pyrite in the presence of Thiobacillus ferrooxidans Appl. Environ. Microbiol. 65 1999 2987 2993 (Pubitemid 29315570)
30. T.A. Fowler, P.R. Holmes, and F.K. Crundwell On the kinetics and mechanism of the dissolution of pyrite in the presence of Thiobacillus ferrooxidans Hydrometallurgy 59 2001 257 270 (Pubitemid 32077445)
31. M.C. Fuerstenau, C.O. Nebo, B.V. Elango, and K.N. Han The kinetics of leaching of galena with ferric nitrate Metall. Trans. B 18B 1987 25 30
32. H. Gerischer Semiconductor electrochemistry H. Eyring, Physical Chemistry - An Advanced Treatise vol. 9A 1970 Academic Press New York
33. M. Green Electrochemistry of the semiconductor electrolyte interface J.O'.M. Bockris, Modern Aspects of Electrochemistry vol. 2 1959 Butterworths London 343 407
34. Y. Guan, and K.N. Han The dissolution behavior of silver in ammoniacal solutions with cupric ammine J. Electrochem. Soc. 141 1994 91 96
35. R.W. Gurney Quantum mechanics of electrolysis Proc. R. Soc. Lond. A 134 1931 137 154 (Proc. Roy. Soc. London A136, 378-396.)
36. F. Habashi Theory of cyanidation Trans. Soc. Min. Eng. AIME 235 1966 236 239
37. F. Habashi Correspondence Miner. Eng. 15 2002 307 308 (Pubitemid 34504524)
38. P.R. Harvey, and F.K. Crundwell Growth of Thiobacillus ferrooxidans: a novel experimental design for batch growth and bacterial leaching studies Appl. Environ. Microbiol. 63 1997 2586 2592 (Pubitemid 27292846)
39. 2O solutions J. Mater. Sci. 19 1984 1314 1320
40. T. Hirato, H. Majima, and Y. Awakura The leaching of chalcopyrite with cupric chloride Metall. Trans. B 18B 1987 31 39
41. T. Hirato, H. Hiai, Y. Awakura, and H. Majima The leaching of sintered CuS disks with ferric chlorides Metall. Trans. B 20B 1989 485 491
42. Holmes, 1998. Ph.D. Thesis, University of the Witwatersrand, Johannesburg
43. P.R. Holmes, and F.K. Crundwell Kinetic aspects of galvanic interactions between minerals during dissolution Hydrometallurgy 39 1995 353 375
44. P.R. Holmes, and F.K. Crundwell The kinetics of the oxidation of pyrite by ferric ions and dissolved oxygen: an electrochemical study Geochim. Cosmochim. Acta 64 2000 263 274 (Pubitemid 30174720)
45. P.R. Holmes, and F.K. Crundwell Polysulfides do not passivate Hydrometallurgy 2013 (submitted for publication)
46. P.R. Holmes, T.A. Fowler, and F.K. Crundwell The mechanism of bacterial action in the leaching of pyrite by Thiobacillus ferrooxidans: an electrochemical study J. Electrochem. Soc. 146 1999 2906 2912
47. M.P. Janzen, R.V. Nicholson, and J.M. Scharer Pyrrhotite reaction kinetics: reaction rates for oxidation by oxygen, ferric iron, and for nonoxidative dissolution Geochim. Cosmochim. Acta 64 2000 1511 1522 (Pubitemid 30325236)
48. D.L. Jones, and E. Peters The leaching of chalcopyrite with ferric sulphate and ferric chloride J.C. Yannopoulos, J.C. Agarwal, Extractive Metallurgy of Copper vol. 2 1976 AIME New York 633
49. T. Koslides, and V.S.T. Ciminelli Pressure oxidation of arsenopyrite and pyrite in alkaline solutions Hydrometallurgy 30 1992 87 106
50. R. Kumar, S. Das, R.K. Ray, and A.K. Biswas Leaching of pure and cobalt-bearing goethites in sulphurous acid: kinetics and mechanism Hydrometallurgy 32 1993 39 59 (Pubitemid 23624209)
51. J. Li, and J.D. Miller Reaction kinetics for gold dissolution in acid thiourea solution using formamidine disulfide as oxidant Preprint 99-62, SME Annual Meeting, March 1-3, 1999 1999 SME Denver, Colorado
52. J. Li, and M.E. Wadsworth Raman spectroscopy of electrochemically oxidized pyrite and optimum conditions for sulfur formation J.B. Hiskey, G.W. Warren, Hydrometallurgy: Fundamentals, Technology and Innovation 1993 SME 127 141
53. Yun Liu, Zhi Dang, PingXiao Wu, Jing Lu, Xiaohua Shu, and Liuchun Zheng Influence of ferric iron on the electrochemical behavior of pyrite Ionics 17 2011 169 176
54. T. Majima, Y. Awakura, T. Hirato, and T. Tanaka The leaching of chalcopyrite in ferric chloride and ferric sulphate solutions Can. Metall. Q. 24 1985 283 291 (Pubitemid 16567667)
55. R.A. Marcus On the theory of electron-transfer reactions Annu. Rev. Phys. Chem. 15 1964 155 163
56. H. Markus, S. Fugleberg, D. Valtakaria, T. Salmia, D.Y. Murzina, and M. Lahtinen Kinetic modelling of a solid-liquid reaction: reduction of ferric iron to ferrous iron with zinc sulphide Chem. Eng. Sci. 59 2004 919 930 (Pubitemid 38362700)
57. M.A. McKibben, and H.L. Barnes Oxidation of pyrite in low temperature acidic solutions: rate laws and surface textures Geochim. Cosmochim. Acta 50 1986 1509 1520
58. J. McLaughlin, and G.E. Agar Development and application of a first order rate equation for modelling the dissolution of gold in cyanide solution Miner. Eng. 4 1991 1305 1314 (Pubitemid 21714771)
59. 2 by sulphur dioxide Hydrometallurgy 10 1983 219 242
60. S.R. Morrison Electrochemistry at Semiconductor and Oxidized Metal Electrodes 1980 Plenum Press New York
61. M.J. Nicol Plenary Presentation to Minerals Processing 2011 2011 SAIMM Cape Town
62. M.J. Nicol, C.R.S. Needes, and N.P. Finkelstein Electrochemical model for the leaching of uranium dioxide: 1. Acidic media A.R. Burkin, Leaching and Reduction in Hydrometallurgy 1975 IMM, Camelot Press 1 19
63. I.P. Palencia-Perez, and J.E. Dutrizac The effect of iron content of sphalerite on its rate of dissolution in ferric sulphate and ferric chloride media Hydrometallurgy 26 1991 211 232
64. J.D. Rimstidt, and D.J. Vaughan Pyrite oxidation: a state-of-the-art assessment of the reaction mechanism Geochim. Cosmochim. Acta 67 2003 873 880 (Pubitemid 36261136)
65. A. Schippers, and W. Sand Bacterial leaching of metal sulphides proceeds by two indirect mechanisms via thiosulphate or polysulphides and sulphur Appl. Environ. Microbiol. 65 1999 319 321 (Pubitemid 29029659)
66. 2O J. Electrochem. Soc. 114 1967 285 292
67. Y.M. Schneerson, I.Y. Leshch, and C.M. Frumina Role of pyrrhotite in the oxidative autoclave leaching of sulphides Tr. Prockt. Nauch-Issled. Inst. Gipronickel 29 1966 24
68. A.D. Souza, P.S. Pina, V.A. Leão, C.A. Silva, and P.F. Siqueira The leaching kinetics of a zinc sulphide concentration acid ferric sulphate Hydrometallurgy 89 2007 72 81 (Pubitemid 47393552)
69. 2 + ions in acidic solutions Hydrometallurgy 28 1993 381 397
70. H. Tributsch Direct versus indirect bioleaching R. Amils, A. Ballester, Biohydrometallurgy and the Environment vol. 1 1999 Elsevier Amsterdam 51 60
71. B. Verbaan A kinetic study of the dissolution of natural and synthetic sphalerite in aqueous sulphuric acid and acidic ferric sulphate media 1977 PhD thesis University of Natal 236
72. B. Verbaan, and F.K. Crundwell An electrochemical model for the leaching of a sphalerite concentrate Hydrometallurgy 16 1986 345 359
73. C. Wagner, and W. Traud Uber die deutung von korrosionsvorgangendurch oberlagerung von elektrochemischen teilvorgangen und uber die potentialbildung an mischelektroden Z. Elektrochem. 44 1938 391
74. G.W. Warren, Seon-hyo Kim, and H. Henein The effect of chloride ion on the ferric chloride leaching of galena concentrate Metall. Trans. B 18B 1987 59 69
75. C.G. Weisner, R.St.C. Smart, and A.R. Gerson Kinetics and mechanisms of the leaching of low Fe sphalerite Geochim. et Cosmochim. Acta 67 2003 823 830 (Pubitemid 36257796)
76. M.A. Williamson, and J.D. Rimstidt The kinetics and electrochemical rate-determining step of aqueous pyrite oxidation Geochim. Cosmochim. Acta 58 1994 5443 5454
77. P.H. Yu, C.K. Hansen, and M.E. Wadsworth A kinetic study of the leaching of chalcopyrite at elevated temperatures D.J. Evans, R.S. Shoemaker, International Symposium on Hydrometallurgy 1973 AIME New York 375 402