Historically, metal recovery has been carried out through the exploitation of mines, where metals are generally in the form of metal sulphides. In these mines, predominant mineral ore are associated with low associations of other minerals. However, in general these high grade ores have been exhausted and up to now...
A hydrometallurgical process to selectively recover copper and gold contained in Electronic Waste Printed Circuit Boards (EWPCB) from cellphones is presented. To achieve a selective process, masking agents were employed to avoid impurities co-dissolution, which could accumulate in the leaching solutions and contribute to reagent degradation. Sodium citrate, ammonium phosphate...
