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Two-Dimensional Non-Linear Dynamic Response of a Heap Leach Pad Located in Peru
(The International Society for Soil Mechanics and Geotechnical Engineering, 2016-09-06)
The current technology of lixiviation process has been widely developed since the last thirty years, becoming this in an efficient method to treat oxidized gold, silver and copper minerals and extract precious metals from ...
Mineralogical, petrographic and fluid inclusion evidence for the link between boiling and epithermal Ag-Au mineralization in the La Luz area, Guanajuato Mining District, Mexico
(2017)
Theoretical, experimental and observation data provide strong evidence that boiling is the dominant depositional mechanism in many low to intermediate sulfidation epithermal precious metals deposits. Textural and petrographic ...
Gold recovery from waste electrical and electronic equipment by electrodeposition: A feasibility study
(Elsevier B.V., 2015-10-01)
Due to rapid technological progress, the replacement of electronic equipment is very often necessary, leading to huge amounts that end up as waste. Printed circuit boards (PCBs) constitute a unique section among Waste ...
Consideraciones sobre el comercio y el papel de la plata hispanoamericana en la temprana globalización, siglos XVI-XIXConsiderations on the Role of the Hispano-American Silver Trade in Early Globalization, 16th - 19th Centuries
(El Colegio de México, 2018-11)
El presente texto analiza algunos aspectos económicos de la inserción de América Latina en la temprana globalización, a través de una estructura de ejes geohistóricos suprarregionales. Se concentrará en el comercio como ...
Preparation of Silver Nanoparticle-based sensor for the electrochemcialdetection of thiourea in leaching solutions of waste and electronic equipment
(Wiley, 2013-08-27)
Waste of electrical and electronic equipment is an interesting secondary resource of base and precious metals. Par- ticularly the use of thiourea-leaching in acidic medium was proposed for noble metals recovery. In this ...
Synergizing industrialized and developing countries to improve resource recovery for e-waste: Case study Belgium - Kenya
(ELSEVIER, 2014-01-01)
Due to high labor costs, e-waste recycling companies in industrialized countries increasingly adopt destructive mechanical pre-processing based treatments. These processes perform poorly for precious metals and plastics ...
Synergizing industrialized and developing countries to improve resource recovery for e-waste: case study Belgium - Kenya
(2014)
Due to high labor costs, e-waste recycling companies in industrialized countries increasingly adopt destructive mechanical pre-processing based treatments. These processes perform poorly for precious metals and plastics ...
Síntese de precursores de heterociclos e sistemas cíclicos nitrogenados
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2018-03-23)
β-halovinyl ketones are valuable and versatile synthetic intermediates for the synthesis of precious bioactive molecules. Majority of the already described methodologies for the synthesis of these versatile building blocks ...
New insight on gold and copper leaching from waste printed circuit boards by chromobacterium violaceum : three steps process
(UniandesMaestría en Ciencias BiológicasFacultad de CienciasDepartamento de Biología, 2016)
Printed circuit boards (PCBs), have a high metal content including copper, silver and gold, making them interesting to recycle, both to reduce pollution and, from an economic perspective, by reusing the precious metals. ...