Kinetic modeling of the alkaline decomposition and cyanidation of argentojarosite Report as inadecuate




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Antonio Roca ; Martín Reyes ; Montserrat Cruells ; Isauro Rivera ; Leticia Esperanza Hernández ;Journal of the Mexican Chemical Society 2010, 54 (4)

Author: Francisco Patiño

Source: http://www.redalyc.org/


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Journal of the Mexican Chemical Society ISSN: 1870-249X editor.jmcs@gmail.com Sociedad Química de México México Patiño, Francisco; Roca, Antonio; Reyes, Martín; Cruells, Montserrat; Rivera, Isauro; Hernández, Leticia Esperanza Kinetic Modeling of the Alkaline Decomposition and Cyanidation of Argentojarosite Journal of the Mexican Chemical Society, vol.
54, núm.
4, octubre-diciembre, 2010, pp.
216-222 Sociedad Química de México Distrito Federal, México Available in: http:--www.redalyc.org-articulo.oa?id=47521542006 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative J.
Mex.
Chem.
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2010, 54(4), 216-222 Francisco et al. © 2010, Sociedad QuímicaPatiño de México ISSN 1870-249X 216      J.
Mex.
Chem.
Soc.
2010, 54(4) Article Kinetic Modeling of the Alkaline Decomposition and Cyanidation of Argentojarosite Francisco Patiño,1* Antonio Roca,2 Martín Reyes,1 Montserrat Cruells,2 Isauro Rivera1 and Leticia Esperanza Hernández1 1 2 Centro de Investigaciones en Materiales y Metalurgia, Universidad Autónoma del Estado de Hidalgo, Carretera PachucaTulancingo km 4.5, C.P.
42184, Pachuca, Hidalgo, México.
Tel: 017717172000-ext 2282, e-mail: franpac@infosel.net.mx Departament de Ciència dels Materials i Enginyería Metallúrgica de Barcelona, Martí i Franquès 1, Barcelona, E-08028, España. Received June 9, 2010; accepted September 6, 2010 Abstract.
The jarosite sample used is an argentojarosite-hydroniumjarosite solid solution of approximate formula (Ag0.78H3O0.22) Fe3(SO4)2 (OH)6.
The decomposition process in NaOH-Ca(OH)2 media and the cyanidation process in Ca(OH)2 media were studied for the induction period and progressive conversion period respectively, and the reaction order and activation energy were dete...





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