Buscar
Mostrando ítems 41-50 de 397
Aplicação de ácidos orgânicos na recuperação de metais a partir de resíduos de baterias de íons de lítio e catalisadores automotivos
(Universidade Federal de Santa MariaBrasilEngenharia QuímicaUFSMPrograma de Pós-Graduação em Engenharia QuímicaCentro de Tecnologia, 2019-01-17)
In the last decades, hydrometallurgical processes have received considerable attention for the recovery of precious metals such as Platinum Group Metals (PGM), as well as recovery of metals with high added value from ...
Natural arrangement of AgCu bimetallic nanostructures through oleylamine reduction
(Royal Society of Chemistry, 2020-12-21)
Noble-metal-based catalysts are the most used nanomaterials to carry out electrochemical reactions, which are commonly applied in fuel cells. This kind of catalyst is expensive and it is worth mentioning that noble metals ...
Roasting-leaching processes of gold-bearing minerals with cyanicidal metalsProcesos de tostación-lixiviación de minerales auríferos con metales cianicidas
(Universidad Nacional Mayor de San Marcos, Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica, 2002)
Sistema de gestión de proveedores para empresas del sector de metales preciosos. Caso C.I. REX GOLD LTDA.
(Universidad EIAAdministrativa, Financiera, Sistemas y ComputaciónIngeniería Administrativa, 2009)
This work proposes a supplier management system, embodied in a manual – model for a company dedicated to the international commercialization of precious metals (basically gold and silver). This system consists of the ...
The Ag- And Au-bearing phases in the Escondida epithermal vein, Cerro Moro deposit, Santa Cruz, Argentina
(Mineralogical Association of Canada, 2020-04)
The Cerro Moro deposit is located at 488505500S, 6683901.600W and 100 m.o.s.l. in Santa Cruz province, southern Argentina. It is a low sulfidation Au-Ag epithermal mineralization hosted by numerous NW-SE structurally ...
A secondary precious and base metal mineralization in chromitites linked to the development of a Paleozoic accretionary complex in Central Chile
(Elsevier, 2016)
Platinum-group element (PGE) and gold inclusions are usually present in peridotites and chromitite deposits associated with ophiolites. Here, we present the first detailed study of the mineralogy of precious metals in ...