An integrated chemicalelectrochemical method for the recovery of copper from dilute solutions

✍ Scribed by A.C.C. Tseung; M.N. Mahmood

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 503 KB
• Volume: 22
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(77)85084-6

✦ Synopsis

AhPtmct-The addition of reducing agents such as hydra&e or sodium sulphite to buffered dilute copper solutions containing chloride ions reduces cupric ions to cuprous ions chemically, thus by-passing this rate-determining electrochemical step. The subsequent electro-deposition of cuprous ions can then proceed readily and the overall farad& efficiency, based on a 2 electron process, may reach 141%.