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An alternative process for refining dore liquid metals |
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| Authors: | Miguel A. Alcántara Francisco Estrada Andres Herrera Victor M. Castaño |
| Affiliation: | (1) CIATEQ AC, Av. del Retablo 150, Col. Fovisste, Querétaro, Querétaro 76150, Mexico, MX;(2) Facultad de Estudios Superiores ”Cuautitlán”, Universidad Nacional Autónoma de México, AP 1–1010, Querétaro, Querétaro 76001, Mexico, MX;(3) Instituto de Física, Universidad Nacional Autónoma de México, AP 1–1010, Querétaro, Querétaro 76000, Mexico e-mail: meneses@servidor.unam.mx, MX |
| Abstract: | A novel method for refining gold-containing ores is reported. The method is based on impingement of a controlled oxygen flow on the liquid metal so as to oxidize the impurities. The experiments were carried out both at laboratory scale and pilot-plant scale. The thermodynamics involved, discussed in the light of the experimental results, are quite complex. The oxidation rate of a specific impurity depends on interaction with other constituents of the system. Received: 28 November 1999 / Reviewed and accepted: 29 November 1999 |
| Keywords: | Gold refining Liquid gold thermodynamics |
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