Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Minerals Année : 2020

Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt

Résumé

An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids. In the leaching experiments, the effects of organic acid concentrations, pulp density, temperature, and time were investigated. Optimum recovery of 99.1% Cu, 89.2% Ni, 94% Co, and 99.2% Fe was achieved in 9-10 h at 308 K (35 • C) temperature and 15% pulp density with 2 N citric acid using <45 µm particles. Pourbaix diagrams of metal-water-citrate systems were supplemented to examine solubility of ligands at the desired conditions. Furthermore, the leaching mechanism was based on the SEM-EDS (energy-dispersive X-ray spectroscopy) and XRD characterization as well as the leaching results obtained.
Fichier principal
Vignette du fichier
minerals-10-00290-v2.pdf (11.79 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

insu-02895357 , version 1 (09-07-2020)

Identifiants

Citer

Pratima Meshram, Uday Prakash, Lalit Bhagat, Abhilash Abhilash, Hongbo Zhao, et al.. Processing of Waste Copper Converter Slag Using Organic Acids for Extraction of Copper, Nickel, and Cobalt. Minerals, 2020, 10 (3), pp.290. ⟨10.3390/min10030290⟩. ⟨insu-02895357⟩
32 Consultations
295 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More