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

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Isabel F. F. Neto (Author) Other; Helena M. V. M. Soares (Author) FEUP

Journal

Title: Separation Science and Technology

Vol. 53 No. 18

Pages: 2961-2970

ISSN: 0149-6395

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

INSPEC

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10