Ore dressing method of copper-cobalt ores

Abstract

The invention discloses an ore dressing method of copper-cobalt ores. The ore dressing method comprises the following steps: first, carrying out ore grinding treatment on copper-cobalt raw ores, adding a certain quantity of regulator in an ore grinding process, and regulating the pH value of ore slurry within a 9-10 range; sequentially adding a collector and a foaming agent into the ore slurry which is treated by ore grinding, carrying out copper-cobalt bulk flotation rough concentration, and after scavenging twice, obtaining tailings; adding an inhibitor into bulk flotation foams, and after carrying out fine concentration for three times, obtaining copper-cobalt bulk concentrates; using the copper-cobalt bulk concentrates as fed ores, carrying out regrinding treatment, adding a certain quantity of regulator in a regrinding treatment process, and regulating the pH value of the ore slurry within a 12-13 range; sequentially adding an inhibitor and a collector into the ore slurry which is treated by regrinding, carrying out copper-cobalt separating flotation, and obtaining cobalt concentrates after one rough concentration and one scavenging; and after carrying out fine concentration twice on the foams which are subjected to copper-cobalt separating flotation, obtaining copper concentrates. The method can effectively separate the copper-cobalt ores and obtain high-quality copper and cobalt concentrates.

Description

technical field [0001] The invention relates to the technical field of beneficiation, in particular to a beneficiation method of copper-cobalt ore. Background technique [0002] my country is a country seriously deficient in cobalt resources. With the rapid economic development in recent years, especially the rapid development of the lithium battery industry, the demand for cobalt is increasing day by day. Cobalt is associated with other elements in most cases. Copper-cobalt ore is the main source of cobalt. Copper minerals in sulfide ores mainly include chalcopyrite, bornite, chalcocite, etc. Cobalt minerals are copper-cobalt sulfide ore. [0003] The beneficiation and enrichment methods of copper-cobalt ore in the prior art mainly include: 1) ore washing-the main methods are mechanized ore washing and manual elutriation, and part of the silt in the ore is removed by washing to achieve the purpose of improving the ore grade. The operation is simple, but the metal recovery ...

AI Technical Summary

Problems solved by technology

[0003] The beneficiation and enrichment methods of copper-cobalt ore in the prior art mainly include: 1) ore washing—the main methods are mechanized ore washing and manual elutriation, and part of the silt in the ore is removed by washing to achieve the purpose of improving the ore grade. The operation is simple, but the metal recovery rate is low, and it is basically close to elimination; 2) Dense medium (HMS) beneficiation - a method of beneficiation using a heavy medium with a density greater than water as the separation medium, but the metal recovery rate of this process is low, usually at 60 % or less, resulting in a great waste of resources; 3) flotation - is the most commonly used method to deal with copper-cobalt sulfide ore, the main process includes copper-cobalt priority flotation and copper-cobalt mixed flotation, and then use other methods to separate , but limited by the existing technology, it is difficult to effectively separate copper-cobalt ore by using flotation methods. While pursuing a single element concentrate, it will reduce the recovery rate of other valuable metals and increase production costs

Images