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Suspension and infiltration of copper concentrate in a gravel bed: a flume study to evaluate the fate of a potential spill in a Chilean river
(Springer, 2020)
This paper shows the advances of an experimental study of the spill of copper concentrate into immobile gravel beds. The purposes of this research are to identify the dynamics of the copper concentrate as it spills in ...
Quinacrine and copper, compounds with anticonceptive and antineoplastic activity
(1994)
Changes in the evolution of a malignant transplantable tumor in mice to whom quinacrine, copper and zinc were supplied in drinking water are reported. Male AJ mice were inoculated in the right thigh with 1,000,000 TA3 or ...
New Copper Resistance Determinants in the Extremophile Acidithiobacillus ferrooxidans: A Quantitative Proteomic Analysis
(American Chemical Society, 2014)
Acidithiobacillus ferrooxidans is an extremophilic bacterium used
in biomining processes to recover metals. The presence in A. ferrooxidans
ATCC 23270 of canonical copper resistance determinants does not entirely
explain ...
Reducing GHG global emissions from copper refining and sea shipping
(Elsevier, 2020)
Chile is the largest copper producing country of the world; and almost 50% of the copper it exports to the rest of the world is exported as copper concentrates to be smelted and refined abroad. However, 70% of the weight ...
Milk fat composition of Holstein and Jersey cows with control or depleted copper status and fed whole soybeans or tallow
(American Dairy Science Association, 2000)
We studied effects of breed, dietary fat source, and dietary copper intake as factors known to influence unsaturation of milk fat and its potential for development of spontaneous oxidized flavor in milk. Twelve Holstein ...
Copper-polymer nanocomposites: An excellent and cost-effective biocide for use on antibacterial surfaces
(2016)
The development of polymer nanocomposites with antimicrobial properties has been a key factor for controlling or inhibiting the growth of microorganisms and preventing foodborne diseases and nosocomial infections. Commercially ...
Simultaneous determination of copper and iron by solvent extraction and first derivative spectrophotometry
(1995)
A simple, sensitive and selective first derivative spectrophotometric method has been developed for the determination of copper and iron in mixtures. The method is based on the recovery of the analytes, by liquid-liquid ...
Copper nanoparticles grown under hydrogen: Study of the surface oxide
(Elsevier, 2011)
Copper nanoparticles with sizes between 10nm and 50nm were grown by condensation in hydrogen
at pressures from 10 Pa to 1200 Pa. The crystallite size ranged from 10nm to 25nm using the Scherrer
method. X-ray diffraction ...
Biological and chemical control in copper bioleaching processes: When inoculation would be of any benefit?
(Elsevier, 2014)
© 2014 Elsevier B.V. All rights reserved.Bioleaching of secondary and low-grade copper ores in heaps and dumps today is a well-established technology. However, there is still a strong need to improve the copper leaching ...
High copper concentration reduces biofilm formation in Acidithiobacillus ferrooxidans by decreasing production of extracellular polymeric substances and its adherence to elemental sulfur
(Elsevier, 2020)
Acidithiobacillus ferrooxidans is an acidophilic bacterium able to grow in environments with high concentrations of metals. It is a chemolithoautotroph able to form biofilms on the surface of solid minerals to obtain its ...