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Bacterial leaching process for copper mineral materials- bac

2020-10-29 12:06

Introduction：Bacterial leaching process for copper mineral materials-bacterial leaching process Bacterial leaching generally involves the following operations: 1.Ore preparation.The copper ore is ground to a certain size according to the ore characteri

Bacterial leaching process for copper mineral materials- bacterial leaching process

Bacterial leaching generally involves the following operations:
1. Ore preparation.The copper ore is ground to a certain size according to the ore characteristics and the requirements of the subsequent operation process, and then it is piled into the ore forming pile or put into the leaching tanks.If the process of in-situ leaching is adopted, the process of distributing and collecting liquid should be selected and some channels should be excavated to facilitate the flow of the leaching agent and thesolution .

2. Leaching.The bacterial leaching process is generally used to treat lean ore, and the percolation extraction process is commonly used, which can be used in heap leaching, trough leaching or in-situ leaching according to specific conditions, and the clarified leaching solution can be directly obtained for subsequent treatment.Some rich ore and so on can also use the process of bacteria stirring leaching, the leaching slurry can be separated by solid and solution to obtain the clarified copper-containing leaching solution.
3. Recover useful ingredients.The extraction of copper from copper leach can be done by iron replacement process, precipitation - flotation process or extraction – electrodeposition process.
The process of bacterial leaching is easy to be different according to the nature of ore treated, the process of treatment and the requirements.Figure 6-4 illustrates the process of recycling copper ore leaching with thiobacillus ferric oxide.

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