Sequential separation of Ag, Al, Cu and Pb from a multi-metal leached solution using a zero waste technology

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Isabel F. F. Neto (Autor) Outra; Helena M. V. M. Soares (Autor) FEUP

Revista

Título: Separation Science and Technology

Vol. 53 Nº 18

Páginas: 2961-2970

ISSN: 0149-6395

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 1 Citação

INSPEC

Outras Informações

ID Authenticus: P-00P-ZHJ

DOI: 10.1080/01496395.2018.1482342

Abstract (EN): A simple, zero-waste and flexible hydrometallurgical process for recycling the main base metals (Al, Cu and Pb) plus Ag from a multi-metal leached solution with high efficiency (97, 94, 96 and 100% for Ag, Pb, Cu and Al, respectively) and significant purity (42, 97, >= 98 and 78% for Ag, Pb, Cu and Al, respectively) was developed. First, Ag and Pb were recovered by sequential precipitation, as AgCl and PbSO4, respectively. Then, Cu and Al were purified sequentially by ion-exchange and alkaline precipitation from the eluate and raffinate, respectively. The wastewaters, containing mainly Na (99.9%), can be also recycled.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10