Zobrazeno 1 - 10
of 66
pro vyhledávání: '"María E. Taboada"'
Publikováno v:
Metals, Vol 14, Iss 7, p 817 (2024)
Copper leaching presents an environmentally friendly alternative to traditional sulfide ore processing methods. This study investigates an efficient leaching process for copper concentrate, utilizing a solution of sulfuric acid (H2SO4) and potassium
Externí odkaz:
https://doaj.org/article/bde0fb16715543ff90209cdf924caa98
Autor:
César I. Castellón, María E. Taboada
Publikováno v:
Materials, Vol 16, Iss 17, p 5940 (2023)
To enhance the leaching of chalcopyrite concentrates, this study evaluated a new process for extracting copper using iodized solutions and sulfuric acid diluted in seawater without pressure or high temperatures. The work involved a leaching test carr
Externí odkaz:
https://doaj.org/article/be47c85bca034e8383fb56c0bab8f34d
Autor:
César I. Castellón, María E. Taboada
Publikováno v:
Materials, Vol 16, Iss 6, p 2312 (2023)
One of the main problems in processing chalcopyrite ore with hydrometallurgical methods is its refractoriness, which is due to the formation of a layer that inhibits the contact of the ore with the leaching solution, thus reducing the dissolution rat
Externí odkaz:
https://doaj.org/article/38b3f3a53c344e90907e371419461ac8
Autor:
Francisca J. Justel, María E. Taboada, Elsa K. Flores, Héctor R. Galleguillos, Teófilo A. Graber
Publikováno v:
ACS Omega, Vol 5, Iss 45, Pp 29073-29080 (2020)
Externí odkaz:
https://doaj.org/article/988b89f6c2d04106b498a7ed691ecf34
Publikováno v:
Metals, Vol 11, Iss 10, p 1567 (2021)
In Chile, the hydrometallurgical plants are operating below their capacity due to a depletion of copper oxide ores. To obtain suitable pregnant leach solutions (PLSs) for hydrometallurgical plants, leaching solutions combining iodine-based oxidants a
Externí odkaz:
https://doaj.org/article/eb4e6c7fc0ec4740841999a7f153b36c
Publikováno v:
Metals, Vol 11, Iss 6, p 866 (2021)
A study of the pretreatment stage and subsequent leaching of a mixed copper ore with different chloride solutions containing iron was carried out. The first stage considered pretreatment tests to decide the best conditions. Two levels of each factor
Externí odkaz:
https://doaj.org/article/795843c6faf340da9e68be6a3e7cd255
Publikováno v:
Metals, Vol 10, Iss 4, p 518 (2020)
An alternative copper concentrate leaching process using sodium nitrate and sulfuric acid diluted in seawater followed by gas scrubbing to recover the sodium nitrate has been evaluated. The work involved leaching test carried out under various condit
Externí odkaz:
https://doaj.org/article/f0a245ed627e4411a3364864c170f12a
Publikováno v:
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 (25–70 °C), reagent concentration, and nitrate type
Externí odkaz:
https://doaj.org/article/3e30681b9b174988b4c6cb2cfb777b05
Publikováno v:
Minerals, Vol 8, Iss 1, p 1 (2017)
The aim of this study was to improve the dissolution of copper sulfide ore composed mainly of chalcopyrite (1.21 wt %) and bornite (0.54 wt %) using a pretreatment before leaching. The effect of the pretreatment on copper sulfide dissolution was inve
Externí odkaz:
https://doaj.org/article/2673d2a15e624e2e996a30d06ceadf51
Publikováno v:
Journal of Sustainable Metallurgy. 7:192-202
In Chile, there are several mining companies that crystallize copper sulfate pentahydrate using freshwater; however, it would be interesting to know the effect of seawater in the process design of copper sulfate pentahydrate crystals, considering the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6798131da7e96cd34d293e5c9614337
https://doi.org/10.1007/s40831-020-00334-y
https://doi.org/10.1007/s40831-020-00334-y