Results 111 to 120 of about 12,905 (231)
On the Chalcopyrite inclusions in Sphalerite
Boletim da Faculdade de Filosofia, Ciências e Letras da Universidade de São Paulo. Mineralogia, 1952 Uma das finalidades do presente trabalho foi medir as porcentagens de inclusões de calcopirita em cristais de esfalerita, que formam concrescimento de ocorrência relativamente frequente nas jazidas hidrotermais. Parece existir uma relação entre porcentagens de inclusões e intensidade hidrotermal dos depósitos, como também entre porcentagens de ...
openaire +2 more sources
Competitive Bioleaching of Pyrite and Chalcopyrite
, 2016 An experimental study was conducted to investigate the heap bioleaching of a copper-gold concentrate using the Geocoat™ technique. Small-scale columns were operated at selected temperatures using bacterial consortia suited to these temperatures.
Petersen, Jochen, Dixon, David G
core
Chalcopyrite dissolution rate law from pH 1 to 3
Geologica Acta, 2009 Chalcopyrite dissolution kinetics in the pH range of 1 to 3 were studied by means of long-term flow-through experiments to obtain a dissolution rate law which can be coupled with reactive transport models to forecast Acid Rock Drainage.
P. ACERO, J. CAMA, C. AYORA, M.P. ASTA
doaj
Overcoming the slow-leaching kinetics of refractory primary copper sulfides is crucial to secure future copper sources. Here, the effect of carbon was investigated as a catalyst for a bioleaching reaction.
Hayashi, Kaito +16 more
core +1 more source
Bacterial Leaching of Chalcopyrite Ore
, 1999 Bacterial leaching utilises bacteria, ubiquitous to sulphide mining environments to oxidise sulphide ores. The sulphide mineral chalcopyrite is the most common copper mineral in the world, comprising the bulk of the known copper reserves. Chalcopyrite is
Canfell, Anthony John
core
The role of Fe(III) and water in the oxidation of chalcopyrite. [PDF]
J Mol ModelBazan SF, Duarte HA, de Lima GF.
europepmc +1 more source
Adsorption Characteristics and Mechanistic Role of Ionic Species on the Chalcopyrite (112) Surface Based on DFT Simulations. [PDF]
Int J Mol SciRios-Colque L +3 more
europepmc +1 more source
Electro-flotation of chalcopyrite fines
, 1982 Electro-flotation tests were conducted on chalcopyrite particles with a modified Hallimond tube designed for electro-flotation, using platinum anode—copper cathode and graphite anode—copper cathode systems.
Khangaonkar, P R, Bhaskar Raju, G
core
Optimization of copper recovery from oxide-sulfide ores through gravity separation and flotation techniques. [PDF]
Sci RepSobouti A, Rezai B.
europepmc +1 more source
Sulfur-enriched sub-arc fluids drive deep sulfur cycling in subduction zones. [PDF]
Nat CommunTan DB +10 more
europepmc +1 more source