Agitation-leaching treatment method for low-grade highly-mudded copper ores

Abstract

The invention provides an agitation-leaching treatment method for low-grade highly-mudded copper ores, wherein the agitation-leaching treatment method comprises the following steps of: S1: carrying out crushing treatment on the ores to obtain fine ore powder; S2: adding a compound curing agent solution which is formed by mixing sulfuric acid, a microbial agent, a catalytic oxidant and water into the fine ore powder to obtain an ore powder mixture, and carrying out agitation treatment on the ore powder mixture; S3: feeding the agitated ore powder mixture to a curing site to carry out curing treatment; S4: after curing is completed, adding water into the ore powder mixture to carry out slurrying treatment, thereby obtaining slurry, and agitating the slurry again; S5: carrying out solid-liquid separation treatment on the slurry after agitation is completed, and collecting leach liquor; and S6: carrying out extraction-reverse extraction-electrodeposition treatment on the collected leach liquor to obtain electro deposited copper. Compared with a conventional agitation-leaching process, extra cost is not increased, treatment cavity is greater, treatment speed is quicker, and leaching efficiency is higher.

Description

[0001] [technical field] [0002] The invention relates to a stirring and leaching process of copper ore after aging, in particular to a stirring and leaching process suitable for low-grade high-grade argillaceous copper ore, including high-grade copper ore and capable of realizing high-efficiency stirring and leaching to extract and recover copper elements Approach. [0003] [Background technique] [0004] The muddy or low-grade ore is processed by granulation and heap leaching technology. Although the recovery rate of copper in the ore can be improved, the heap leaching and spraying treatment still has the disadvantages of slow leaching and long leaching cycle. In order to quickly obtain products, agitation leaching technology can be used to process related minerals, but the current agitation leaching technology still has the disadvantages of long leaching cycle, low efficiency and small processing capacity when processing minerals. Although the leaching rate can be rapidly ...

AI Technical Summary

Problems solved by technology

[0004] The muddy or low-grade ore is processed by granulation and heap leaching technology. Although the recovery rate of copper in the ore can be improved, the heap leaching and spraying treatment still has the disadvantages of slow leaching and long leaching cycle.

In order to obtain products quickly, agitation leaching technology can be used to process related minerals, but the current agitation leaching technology still has the disadvantages of long leaching cycle, low efficiency and small processing capacity when processing minerals

Although the leaching rate can be rapidly increased by heating and oxygenation treatment, the investment is large and the cost is high, which is not conducive to the treatment of low-grade ore

Images