| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Hopfner process | Mining | A process for the recovery of copper in which a solution of cuprous chloride in sodium or calcium chloride is used to dissolve copper sulfides. The solution is then electrolyzed in tanks with diaphragms. The anodes are impure copper; the cathodes, pure copper. Copper is deposited from the cuprous chloride solution, and cupric chloride is regenerated. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
