Precipitation of chloride from zinc sulphate solution

Details Precipitation of chloride from zinc sulphate solution Precipitation of chloride from zinc sulphate solution

1980-03-31

1981-04-21

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25C 116

Patent

active

042631092

ABSTRACT:
A process is described for the removal of chloride impurity from zinc sulphate solution. The process comprises the steps of forming a slurry of said solution with an inert particulate support material having elemental silver dispersed thereon, and an oxidizing agent, agitating said slurry at a temperature between about 60.degree. and about 100.degree. C. for precipitation of silver chloride on said support material, filtering said slurry to separate purified zinc sulphate solution from the support material containing the precipitated silver chloride, and treating said separated support material containing precipitated silver chloride with a reductant in an aqueous alkaline medium to regenerate elemental silver on said support material.

REFERENCES:
patent: 2396569 (1946-03-01), Griffith et al.
patent: 3826648 (1974-07-01), Bodson

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