Chloride melt process for the separation and recovery of zinc

Details Chloride melt process for the separation and recovery of zinc Chloride melt process for the separation and recovery of zinc

2005-07-26

2005-07-26

Nguyen, Ngoc-Yen (Department: 1754)

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

C423S491000, C423S500000, C423S103000, C423S107000, C205S618000

Reexamination Certificate

active

06921474

ABSTRACT:
Process for the production of ZnCl2from a Zn bearing primary and/or secondary material comprising the steps of reacting the Zn bearing material with a chlorinating agent such as Cl2to convert metals into chlorides and vaporising the volatile components of the reaction product at a temperature between the melting point of said reaction product and the boiling point of ZnCl2, thereby recovering a Zn rich chlorinated melt, and thereafter distilling ZnCl2from this Zn rich chlorinated melt, thereby recovering purified ZnCl2and a Zn-depleted chlorinated melt.

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Hill, S.D. et al “Electrowinning Zinc from Zinc Chloride in Monopolar and Bipolar Fused-Salt Cells”, Report of Investigation 8524, 1981, U.S. Department of the Interior-Bureau of Mines (no month).

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