Zobrazeno 1 - 10
of 66
pro vyhledávání: '"O. Herreros"'
Publikováno v:
Revista de Metalurgia, Vol 41, Iss 5, Pp 384-392 (2005)
Se ha estudiado la lixiviación de concentrados de cobre mediante cloro-complejos cúpricos, generados in situ por la reacción entre el Cu(II) procedente del cobre soluble del concentrado y cloruro de sodio en medio ácido. Se utilizaron concentrado
Externí odkaz:
https://doaj.org/article/8c8aec09dd31430b9cbc9c557fff750f
Publikováno v:
Revista de Metalurgia, Vol 39, Iss 2, Pp 90-98 (2003)
Se ha estudiado la lixiviación de concentrados de cobre con alto contenido de arsénico (hasta 2,5 %), mediante un proceso de oxidación con cloro formado "in situ", por la reacción entre hipoclorito de sodio y ácido sulfúrico. El objetivo de est
Externí odkaz:
https://doaj.org/article/7392b067aa6f494fab353167d940d68e
Cupric and Chloride Ions: Leaching of Chalcopyrite Concentrate with Low Chloride Concentration Media
Autor:
O. Herreros, Pía Hernández, Yousef Ghorbani, Cynthia M. Torres, Francisca J. Justel, Matías I. Aravena
Publikováno v:
Minerals
Volume 9
Issue 10
Minerals, Vol 9, Iss 10, p 639 (2019)
Volume 9
Issue 10
Minerals, Vol 9, Iss 10, p 639 (2019)
In this paper, the effect of the cupric and chloride ions concentrations on copper dissolution from chalcopyrite concentrate was studied in acidified media. Variables included three different concentrations of Cu2+ (0.5, 1.5, and 2.5 g L&minus
1
1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55109cb6d6772d80716d7b8dd5941bde
Publikováno v:
Minerals, Vol 8, Iss 8, p 312 (2018)
Minerals
Volume 8
Issue 8
Minerals
Volume 8
Issue 8
Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chloride-ferrous media at two temperatures. The study focused on whether this chemical leaching s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3547ba2a9cc9fd37ecd5eb5b482f06cc
http://www.mdpi.com/2075-163X/8/8/312
http://www.mdpi.com/2075-163X/8/8/312
Publikováno v:
Hydrometallurgy. 157:325-332
Due to water shortages and depletion of both surface water and underground aquifers, seawater is now used increasingly in the mining industry in northern Chile as a main alternative water resource. In this paper, the use of seawater in leaching of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5d7618a6a1639edadd8e6fe4a399cf1
https://doi.org/10.1016/j.hydromet.2015.09.007
https://doi.org/10.1016/j.hydromet.2015.09.007
Publikováno v:
Minerals Engineering. 71:139-145
Due to the scarcity of water in the north of Chile, there is interest in small-scale mining using seawater to leach the minerals. This situation has led to this research aimed to determine the effect of different process variables on the extraction o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a66eaee952454399f35d85ef7bd12752
https://doi.org/10.1016/j.mineng.2014.11.008
https://doi.org/10.1016/j.mineng.2014.11.008
Autor:
Marcelo Y. Kurokawa, Gilson Mileo Carvalho, Rodrigo A. Morbach, Rivael Strobel Penze, João Paulo Vicentini Fracarolli, Luis Fernando Pedrozo Melegari, Claudio Antonio Hortencio, Rodrigo Peres, Danilo Cesar Dini, Eduardo Ferreira Da Costa, Marcus Vinícius Ferreira De Santana, L. F. Avila, Augusto Cezar M. Gregatti, Claudio Floridia, Heloisa O. Herreros, Fabio Renato Bassan, Bruno Nogueira Aires, Joao Batista Rosolem, Gerson L. Amadeo, Guilherme Da Silva Muniz, Fernando Pertile, Felipe Cezar Salgado
Publikováno v:
SPIE Proceedings.
This paper presents the results of a field test of a multi-parameters' monitoring network using FBGs adapted directly in the conventional instruments of two dams which are in full operational capability. We presented the details of the design and tes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b30b2fc4f202c40ff013b07897f57c2
https://doi.org/10.1117/12.2223319
https://doi.org/10.1117/12.2223319
Publikováno v:
Minerals
Volume 8
Issue 6
Minerals, Vol 8, Iss 6, p 238 (2018)
Volume 8
Issue 6
Minerals, Vol 8, Iss 6, p 238 (2018)
The leaching of copper from industrial copper ore with 4.8 wt % chalcopyrite by acidified nitrate with seawater based media was investigated. Water quality (pure water and seawater), temperature (25&ndash
70 °
C), reagent concentration,
70 °
C), reagent concentration,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ead0727df0c796259093ab6fa5c5ff9
https://doi.org/10.3390/min8060238
https://doi.org/10.3390/min8060238
Publikováno v:
Hydrometallurgy. 95:113-120
The hydrothermal treatment of Chilean Codelco-type copper concentrates with copper sulfate solutions was investigated as a mean of removal of impurities and subsequent increase of the copper assay. The behavior of the mineral phases (digenite, chalco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14334c4776dc40769ca71d4f993a4b70
https://doi.org/10.1016/j.hydromet.2008.05.004
https://doi.org/10.1016/j.hydromet.2008.05.004
Publikováno v:
Hydrometallurgy. 95:104-112
The nature and basic kinetics of the hydrothermal reactions of bornite, covellite and pyrite with copper sulfate solutions were investigated, as a previous study on the behavior of the bulk Chilean copper concentrates. The reaction of bornite produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79da9f1d6c0fa0207e1e056dcf8c0a61
https://doi.org/10.1016/j.hydromet.2008.05.005
https://doi.org/10.1016/j.hydromet.2008.05.005