Zinc chloride electrolysis
First Claim
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1. A process for electrolysing an aqueous solution of zinc chloride having a concentration of 15-35 weight %, the solution arising from leaching a zinc-containing material using an aqueous substantially saturated chlorine solution, the electrolysis proceeding at pH 2-3.5 below 35°
- C. with gas agitation at a current density exceeding 1000 A/m2, thereby yielding coherent zinc at the cathode.
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Abstract
Electrolysing an aqueous solution of zinc chloride or cadmium chloride of a concentration of 15-35 weight % at pH 2-3.5 below 35 C with gas agitation at a current density exceeding 1000 A/m2, whereby coherent zinc or cadmium is yielded at the cathode.
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11 Claims
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1. A process for electrolysing an aqueous solution of zinc chloride having a concentration of 15-35 weight %, the solution arising from leaching a zinc-containing material using an aqueous substantially saturated chlorine solution, the electrolysis proceeding at pH 2-3.5 below 35°
- C. with gas agitation at a current density exceeding 1000 A/m2, thereby yielding coherent zinc at the cathode.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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