6. Copper extraction by case-hardening
The cementation or iron precipitation process is an old one, used by the Spanish on Rio Tinto mine waters as early as 1670, and by the English at County Wicklow in Ireland in 1880. The process is applicable to dilute solutions containing 0.3 to 3.5 g/L Cu. The iron acts as a reductant on the copper and passes into solution, precipitating copper onto the iron surface according to the following two redox half-reactions:
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Metal manufacturing processes and recycling
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Copper extraction by case-hardening