Copper recovery by cementing from waste solutions derived from the manufacturing/printing industry
| Autor: | Maria Veronica D'Angelo, Sonia Lustig, Graciela A. González, Cecilia Daniela Costa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences Chloride Industrial waste DISCARDING ALUMINUM ETCHING SOLUTIONS ELECTROPLATING SOLUTIONS COPPER RECOVERY Aluminium Cementation (metallurgy) medicine Chemical Engineering (miscellaneous) Waste Management and Disposal 0105 earth and related environmental sciences X-RAY DIFFRACTION Process Chemistry and Technology Metallurgy 021001 nanoscience & nanotechnology Pollution Copper purl.org/becyt/ford/2.4 [https] Volume (thermodynamics) chemistry Cementation process purl.org/becyt/ford/2 [https] CEMENTATION 0210 nano-technology medicine.drug |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | We report the optimal conditions for copper recovery on a laboratory scale through a cementation process from industrial waste solutions. As cementing agent, aluminum was employed from different sources: discarding aluminum from soda cans and turning chip and commercial meshes. The percentage of recovery is highly dependent on the exposed area of aluminum and chloride additions. It was determined that the optimal chloride concentration should be equal to or greater than 100 mM and the ratio between mass of aluminum and volume of copper solution must be greater than (42+/-4) mg/mL for mesh or shavings to obtain recoveries up to 90 %. For the case of aluminum from soda cans, this relation or the treatment time should be increased to reach the same relevant recoveries. As revealed by Scanning Electron Microscopy and X-Ray Diffraction experiments, the obtained copper is polycrystalline and dendritic, with low percentage of oxidized compounds. Under the conditions tested, the source of aluminum used does not seem to affect the quality of the product obtained. The conditions studied allow to scale the procedure and thus achieve the recovery of a metal of high economic value and reduce the environmental impact of industries such as the manufacture of printed circuits. Fil: Costa, Cecilia Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina Fil: Lustig, Sonia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina Fil: D'angelo, María Verónica. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: González, Graciela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina |
| Databáze: | OpenAIRE |
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