A kind of beneficiation method of copper-cobalt ore containing easily floating calcium-magnesium mineral

Abstract

The invention discloses a mineral separation method for copper-cobalt ore containing easy-to-float calcium magnesium minerals. Raw ore of copper-cobalt ore containing easy-to-float calcium magnesium minerals is ground, during ore grinding, a pH regulator is added, and therefore raw ore pulp with the pH value being 8-11 is manufactured; a copper-cobalt mineral regulator, a copper-cobalt mineral collecting agent and a foaming agent are sequentially added into the raw ore pulp, copper-cobalt roughing is performed one to three times, and copper-cobalt scavenging is performed one to three times, sothat copper-cobalt rough concentrate is obtained; the copper-cobalt rough concentrate is ground again, a calcium magnesium mineral inhibitor is added into a grinder for performing regrinding, then, the pH regulator is added into reground ore pulp, the pH value of the reground ore pulp is adjusted to 5-7, the copper-cobalt mineral collecting agent is added, selection is performed two to three times, and fine scavenging is performed for two to three times, so that copper-cobalt concentrate is obtained. Easy-to-float calcium magnesium minerals in copper-cobalt ore can be effectively restrained,the gangue content in the copper-cobalt concentrate is lowered, and the copper-cobalt recycling rate can be increased while the copper-cobalt concentrate grade is ensured.

Description

technical field [0001] The invention relates to the technical field of copper-cobalt ore beneficiation, in particular to a beneficiation method of copper-cobalt ore containing easily floating calcium and magnesium minerals. Background technique [0002] Affected by ore genesis, copper-cobalt ore in some areas contains more calcium-magnesium minerals such as talc, serpentine, pyroxene, hornblende, chlorite, dolomite, olivine, etc., and these calcium-magnesium minerals have relatively Strong hydrophobicity and natural floatability, so during the flotation process of this type of copper-cobalt ore, these calcium-magnesium minerals will be enriched in the flotation concentrate along with the target minerals (copper minerals, cobalt minerals), If not effectively suppressed, these calcium-magnesium minerals will significantly affect the grade of copper concentrate, resulting in excessive calcium and magnesium content in the concentrate, which will seriously affect sales. In addit...

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Problems solved by technology

[0005] In order to solve the problem that the existing technology cannot effectively suppress the easy-floating calcium-magnesium minerals in copper-cobalt ore, the content of gangue in copper-cobalt concentrate is high, it is impossible to take into account the grade of copper-cobalt concentrate and the recovery rate of copper-cobalt, and the circulation of medium ore is large , difficulty in operation and management and other technical problems, the present invention provides a beneficiation method of copper-cobalt ore containing easy-floating calcium-magnesium minerals, which can not only effectively suppress the easy-floating calcium-magnesium minerals in copper-cobalt ore, but also reduce the copper-cobalt concentrate mid-vein Copper and cobalt content can improve the recovery rate of copper and cobalt while ensuring the grade of copper and cobalt concentrate

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