| 摘要 |
An electrochemical process for the concurrent recovery of iron metal and chlorine gas from an iron-rich metal chloride solution, comprising electroly sing the iron-rich metal chloride solution in an electrolyser comprising a c athodic compartment equipped with a cathode having a hydrogen overpotential higher than that of iron and containing a catholyte having a pH below about 2, an anodic compartment equipped with an anode and containing an anolyte, a nd a separator allowing for anion passage, the electrolysing step comprising circulating the iron-rich metal chloride solution in a non-anodic compartme nt of the electrolyser, thereby causing iron to be electrodeposited at the c athode and chlorine gas to evolve at the anode, and leaving an iron-depleted solution. The iron-rich metal chloride solution may originate from carbo-ch lorination wastes, spent acid leaching liquors or pickling liquors.
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