| 摘要 |
PROBLEM TO BE SOLVED: To provide an acid leaching apparatus and an acid leaching method of a metal capable of verifying the progress state of an exudation reaction.SOLUTION: The provided acid leaching apparatus A comprises a column 1 into which a raw ingredient including a target metal is to be charged, an exudate circulation means of circulating an exudate into the column 1, a hydrogen concentration meter 6 for measuring the concentration of a hydrogen gas generated within the column 1, and an oxidation-reduction potentiometer 7 for measuring the oxidation-reduction potential of the exudate. The progress state of an exudation reaction can be verified with reference to the hydrogen gas concentration or the oxidation-reduction potential. Since the end point of the exudation reaction can be discerned, furthermore, an efficient operation cycle becomes possible. |
