| Texto completo | |
| Autor(es): |
Botelho Junior, Amilton Barbosa
;
Dreisinger, David B.
;
Espinosa, Denise C. R.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MINING METALLURGY & EXPLORATION; v. 36, n. 1, p. 15-pg., 2019-02-01. |
| Resumo | |
Copper and cobalt can be found on nickel laterite ores, and cobalt can be found also on copper ores, and many contaminants such as iron, aluminum, and magnesium are associated with these ores. In hydrometallurgical process, a purification step is necessary after leaching due to the presence of these impurities. Chelating resins are more selective for some metals than others, making them more efficient than cationic resins. This overview discusses chelating resin applications to recover copper, nickel, and cobalt from mining process and mining tailings and the effect of contaminants in leach solution. Chelating resins with iminodiacetate functional group can be used for selective copper recovery, and both iminodiacetate and bis-picolylamine resins are highly selective for nickel and cobalt. Chelating resins with the same functional group can have different performances on the kinetics of loading, because of variations of structure, the density of functional group, and degree of cross-linking. This article reviews commercial chelating resins that can be applied in leach solutions with different compositions, and also possible innovations for uses of chelating resins to recover metals from mining process and mining tailings. (AU) | |
| Processo FAPESP: | 17/06563-8 - Influência do agente redutor no liquor sulfúrico de resíduo de mineração no processo de troca-iônica utilizando resina quelante |
| Beneficiário: | Amilton Barbosa Botelho Junior |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Mestrado |
| Processo FAPESP: | 16/05527-5 - Separação de metais a partir de líquor sulfúrico de resíduo de mineração utilizando resinas quelantes |
| Beneficiário: | Amilton Barbosa Botelho Junior |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |