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Incrustation of precious stones in dental apatite
(2006)
There is evidence that in ancient cultures in Mexico copal was probably used for gluing precious stones in teeth cavities and for dental restorations as well. We have investigated potential applications of this material ...
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 ...
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 ...
Metallogenetic systems associated with granitoid magmatism in the Amazonian Craton: An overview of the present level of understanding and exploration significance
(Elsevier B.V., 2016-07-01)
The Amazonian Craton hosts world-class metallogenic provinces with a wide range of styles of primary precious, rare, base metal, and placer deposits. This paper provides a synthesis of the geological database with regard ...
Non-Precious Electrodes for Practical Alkaline Water Electrolysis
(MDPI, 2019-04)
Water electrolysis is a promising approach to hydrogen production from renewable energy sources. Alkaline water electrolyzers allow using non-noble and low cost materials. An analysis of common assumptions and experimental ...
Metallogenetic Systems Associated With Granitoid Magmatism In The Amazonian Craton: An Overview Of The Present Level Of Understanding And Exploration Significance
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2016)
Análise da caracterização de catalisadores do tipo TWC visando recuperação de Pt, Rh e Pd
(Universidade Federal de São Paulo, 2022-12-13)
Os catalisadores automotivos compõem uma grande fração no mercado mundial de catalisadores químicos. Seu desenvolvimento está intrinsicamente vinculado a necessidade de se atender à legislação ambiental corrente, que ...