Rapid oxidation of sulfide mine tailings by reaction with potassium ferrate.
作者： Mohamed Murshed , David A Rockstraw , Adrian T Hanson , Michael Johnson
DOI: 10.1016/S0269-7491(03)00052-6
关键词: Aqueous solution 、 Sulfide 、 Inorganic chemistry 、 Acid mine drainage 、 Iron sulfide 、 Mineralogy 、 Tailings 、 Extraction (chemistry) 、 Slurry 、 Chemistry 、 Potassium ferrate
摘要: The chemistry of sulfide mine tailings treated with potassium ferrate (K2FeO4) in aqueous slurry has been investigated. reaction system is believed to parallel a geochemical oxidation which ion replaces oxygen. This chemical utilized pipeline (as plug flow reactor) may have application eliminating the potential for leach acid while recovering metal from tailings. Elemental analyses were performed using an ICP spectrometer phase extract tailings; and SEM-EDX tailing solids. Solids analyzed before after treatments applied. shows that as mass ratio increases, concentration metals solution increases; EDX indicates corresponding decrease sulfur content extraction reduction significant. kinetic timeframe on order minutes.
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sci-hub.se 参考文章(15)
Environmental geochemistry of sulfide oxidation ACS Books. ,(1993) , 10.1021/BK-1994-0550
Michael D. Johnson, John F. Read, Kinetics and Mechanism of the Ferrate Oxidation of Thiosulfate and Other Sulfur-Containing Species Inorganic Chemistry. ,vol. 35, pp. 6795- 6799 ,(1996) , 10.1021/IC960480O
Richard T. Lowson, Aqueous oxidation of pyrite by molecular oxygen Chemical Reviews. ,vol. 82, pp. 461- 497 ,(1982) , 10.1021/CR00051A001
Michael A McKibben, Hubert L Barnes, Oxidation of pyrite in low temperature acidic solutions: Rate laws and surface textures Geochimica et Cosmochimica Acta. ,vol. 50, pp. 1509- 1520 ,(1986) , 10.1016/0016-7037(86)90325-X
Jia-Qian Jiang, Barry Lloyd, Progress in the development and use of ferrate(VI) salt as an oxidant and coagulant for water and wastewater treatment. Water Research. ,vol. 36, pp. 1397- 1408 ,(2002) , 10.1016/S0043-1354(01)00358-X
Virender K. Sharma, Jeremy O. Smith, Frank J. Millero, Ferrate(VI) Oxidation of Hydrogen Sulfide Environmental Science & Technology. ,vol. 31, pp. 2486- 2491 ,(1997) , 10.1021/ES960755Z
Gregory J. Olson, Rate of Pyrite Bioleaching by Thiobacillus ferrooxidans: Results of an Interlaboratory Comparison Applied and Environmental Microbiology. ,vol. 57, pp. 642- 644 ,(1991) , 10.1128/AEM.57.3.642-644.1991
V. P. (Bill) Evangelou, Y. L. Zhang, A review: Pyrite oxidation mechanisms and acid mine drainage prevention Critical Reviews in Environmental Science and Technology. ,vol. 25, pp. 141- 199 ,(1995) , 10.1080/10643389509388477
Sergio J. DeLuca, Allen C. Chao, Charles Smallwood, Removal of Organic Priority Pollutants by Oxidation‐Coagulation Journal of Environmental Engineering. ,vol. 109, pp. 36- 46 ,(1983) , 10.1061/(ASCE)0733-9372(1983)109:1(36)
J. M. Schreyer, G. W. Thompson, L. T. Ockerman, Oxidation of Chromium(III) with Potassium Ferrate(VI) Analytical Chemistry. ,vol. 22, pp. 1426- 1427 ,(1950) , 10.1021/AC60047A022