Invention Grant
US3799850A Electrolytic process of extracting metallic zinc 失效
提取金属锌的电解过程

Electrolytic process of extracting metallic zinc
Abstract:
A METHOD FOR OBTAINING ZINC FROM ITS SULFURIC ACID SOLUTIONS BY AN ELECTROLYTIC PROCESS IN WHICH THE CURRENT FLOW BETWEEN THE ELECTRODES IS REVERSED FOR FROM 0.3 TO 1.2% OF THE ELECTRICAL CURRENT CYCLE AND THE FREQUENCY OF CHANGING THE SIGN OF THE ELECTRODES IS FROM 2.0 TO 6.0 TIMES A MINUTE.
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