Buscar
Mostrando ítems 1-10 de 107
Geoelectrical prospecting for a copper-sulfide mineralization in the Camaqua sedimentary basin, Southern Brazil
(Inst Geophysics Unam, 2016-07-01)
In this paper are presented the results of the combination between a resistivity method and geological surface mapping, applied to the study of an area with potential mineralization of copper sulfides sited on the northern ...
Geoelectrical prospection of disseminated sulfide mineral occurrences in Camaquã Sedimentary Basin, Rio Grande do Sul State, Brazil
(2012-12-01)
The mineral exploration is a complex activity that should involve a combination of direct and indirect techniques of geological investigation. The growing demand for base metals in the national and international market ...
Aqueous Nanofluids Based on Copper MPA: Synthesis and Characterization
(Univ Fed Sao Carlos, Dept Engenharia Materials, 2017-01-01)
The application and use of efficient cooling fluids have become increasingly important due to the increasing industrial and energy demand associated with the miniaturization of various electronic devices. The search for ...
PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
(Sociedad Chilena de Química, 2003)
Synthesis and characterization of cu2-xs structures by different chemical routes for electronic applications
(2021-01-01)
Copper sulfides are materials with different technological applications due to different possibilities of phases, which result in different properties. Thus, obtaining particles with different stoichiometry of the materials ...
Deposition of copper sulfide on modified low-density polyethylene surface: morphology and electrical characterization
(Elsevier Science BvAmsterdamHolanda, 2002)
In situ recovery of copper sulfide ores: alternative process schemes for bioleaching application
(Elsevier, 2020)
There is a growing interest in exploring the application of bioleaching for treating copper sulfide ores of decreasing grade and located at larger depth by in situ recovery (ISR) for its potential savings in ore extraction, ...
Changing the conventional clarification method in metal sulfide precipitation by a membrane-based filtration process
(Elsevier, 2021)
The metal sulfide precipitation process is a widely studied technology used to recover metals or remove pollutants from different aqueous sources. However, the conventional clarification stage used to separate the generated ...
Geoelectric prospection of copper occurrence in folded structures in the sul-riograndense shield (Brazil)
(2018-01-01)
Sulfide prospecting with electrical resistivity and induced polarization geophysical methods are effective due to the contrast of electrical resistivity and chargeability disseminated sulfides or filonean deposits, which ...
Ferric iron uptake genes are differentially expressed in the presence of copper sulfides in Acidithiobacillus ferrooxidans strain LR
(Springer, 2011-03-01)
Acidithiobacillus ferrooxidans is one of the most widely used microorganisms in bioleaching operations to recover copper from low-grade copper sulfide ores. This work aimed to investigate the relative expression of genes ...