Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine

This paper reports the effect of the components of a direct leaching residue (jarosite and elemental sulfur), on the recovery of valuable metals such as gold and silver. Leaching media such as cyanide and mixtures of cyanide with glycine were used to recover the gold and silver from the residue; how...

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Autores principales:	Picazo-Rodríguez N.G., Carrillo-Pedroza F.R., Martínez Luévanos A., Soria-Aguilar M.J., Almaguer-Guzmán I.
Formato:	article
Lenguaje:	EN
Publicado:	Technical Faculty, Bor 2021
Materias:	gold silver treatments jarosite elemental sulfur Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/e4abf60ef9d1426abace37c7c216a7d5
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spelling	oai:doaj.org-article:e4abf60ef9d1426abace37c7c216a7d52021-11-22T11:04:01ZSº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine1450-53392217-717510.2298/JMMB191221031Phttps://doaj.org/article/e4abf60ef9d1426abace37c7c216a7d52021-01-01T00:00:00Zhttp://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100031P.pdfhttps://doaj.org/toc/1450-5339https://doaj.org/toc/2217-7175This paper reports the effect of the components of a direct leaching residue (jarosite and elemental sulfur), on the recovery of valuable metals such as gold and silver. Leaching media such as cyanide and mixtures of cyanide with glycine were used to recover the gold and silver from the residue; however, a low recovery of these metals was obtained. This occurred due to the negative effect of its components which caused problems in the extraction process such as encapsulation of silver (due to jarosite) and the formation of thiocyanate and re-precipitation of silver (due to sulfur). Various treatments prior to leaching were tested, finding that when the residue was desulfurized with perchlorethylene and subjected to an oxidizing alkaline hydrothermal treatment, the gold extraction increased from 39.73 to 88% and the silver extraction of 64.76 to 94.29%. Additionally, it was determined that when cyanide was assisted by glycine, the latter decreased the cyanide consumption by inhibition of the dissolution of iron and sulfur in cyanide.Picazo-Rodríguez N.G.Carrillo-Pedroza F.R.Martínez Luévanos A.Soria-Aguilar M.J.Almaguer-Guzmán I.Technical Faculty, Borarticlegoldsilvertreatmentsjarositeelemental sulfurMining engineering. MetallurgyTN1-997ENJournal of Mining and Metallurgy. Section B: Metallurgy, Vol 57, Iss 3, Pp 349-358 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	gold silver treatments jarosite elemental sulfur Mining engineering. Metallurgy TN1-997
spellingShingle	gold silver treatments jarosite elemental sulfur Mining engineering. Metallurgy TN1-997 Picazo-Rodríguez N.G. Carrillo-Pedroza F.R. Martínez Luévanos A. Soria-Aguilar M.J. Almaguer-Guzmán I. Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
description	This paper reports the effect of the components of a direct leaching residue (jarosite and elemental sulfur), on the recovery of valuable metals such as gold and silver. Leaching media such as cyanide and mixtures of cyanide with glycine were used to recover the gold and silver from the residue; however, a low recovery of these metals was obtained. This occurred due to the negative effect of its components which caused problems in the extraction process such as encapsulation of silver (due to jarosite) and the formation of thiocyanate and re-precipitation of silver (due to sulfur). Various treatments prior to leaching were tested, finding that when the residue was desulfurized with perchlorethylene and subjected to an oxidizing alkaline hydrothermal treatment, the gold extraction increased from 39.73 to 88% and the silver extraction of 64.76 to 94.29%. Additionally, it was determined that when cyanide was assisted by glycine, the latter decreased the cyanide consumption by inhibition of the dissolution of iron and sulfur in cyanide.
format	article
author	Picazo-Rodríguez N.G. Carrillo-Pedroza F.R. Martínez Luévanos A. Soria-Aguilar M.J. Almaguer-Guzmán I.
author_facet	Picazo-Rodríguez N.G. Carrillo-Pedroza F.R. Martínez Luévanos A. Soria-Aguilar M.J. Almaguer-Guzmán I.
author_sort	Picazo-Rodríguez N.G.
title	Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
title_short	Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
title_full	Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
title_fullStr	Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
title_full_unstemmed	Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
title_sort	sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine
publisher	Technical Faculty, Bor
publishDate	2021
url	https://doaj.org/article/e4abf60ef9d1426abace37c7c216a7d5
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Sº and jarosite behavior during recovery of values from the direct leaching residue of sphalerite using cyanide and glycine

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