Obtención de polvos de cobre a partir de un subproducto de la industria del cobre por medio de proceso de reducción

Copper powders were obtained through gas-solid reaction from a metalworking copper waste, known as copper slag. The copper slag is generated in the copper melting process and is classified as a hazardous waste under 4741 Decree of 2005 due to the negative effect that can have on people, fauna, flora and hydric sources. The methodology involved was the design a reduction system through rotary furnace with controlled atmosphere to ensure the reduction of copper oxides present in the slag at temperatures between 400 ° C and 500 ° C with reduction times around 1 and 2 hours. The raw material and further reduced powders were characterized through Scanning Electron Microscopy-Dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD) and X-ray fluorescence (XRF). Finally, we achieved copper powders from the waste through the solid-gas reaction.

• Autores: Perea Giraldo, Juan Manuel
• Fecha de publicación: 2014
• Institución: Universidad de San Buenaventura
• Repositorio: Repositorio USB
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.usb.edu.co:10819/3124
• Acceso en línea: http://hdl.handle.net/10819/3124
• Palabra clave: Pulvimetalurgia; Residuo peligroso; Copper; Reduction process; Metalurgía; Cobre; Reduccion quimica; Materiales
• License: http://purl.org/coar/access_right/c_abf2