Method for processing copper-cobalt ore

Abstract

The invention discloses a method for processing copper-cobalt ore. The method comprises the following steps of (1) grinding the copper-cobalt ore to obtain a fine grinding material; (2) mixing the fine grinding material, modified sodium carboxymethyl cellulose, a collecting agent and terpenic oil and carrying out first-stage flotation, and acquiring first-stage flotation concentrate and first-stage flotation tailings, wherein the collecting agent is butyl xanthate and / or ammonium dibutyl dithiophosphate; (3) mixing the first-stage flotation tailings, the collecting agent and the terpenic oil to carry out second-stage flotation, and acquiring second-stage flotation concentrate and second-stage flotation tailings; (4) carrying out first-stage concentration on the first-stage flotation concentrate and the second-stage flotation concentrate to obtain first-stage concentration concentrate and first-stage concentration tailings; (5) carrying out second-stage concentration on the first-stageconcentration concentrate to obtain second-stage concentration concentrate and second-stage concentration tailings; and (6) carrying out third-stage concentration on the second-stage concentration concentrate to obtain copper-cobalt concentrate and third-stage concentration tailings. By using the method, efficient recovery of the copper and cobalt elements can be achieved, a content of magnesium in the finally-obtained copper-cobalt concentrate is low, and therefore a subsequent smelting requirement is satisfied.

Description

technical field [0001] The invention belongs to the field of mineral processing, and in particular relates to a method for processing copper-cobalt ore. Background technique [0002] Copper-cobalt ore generally contains gangue minerals such as dolomite, talc, and serpentine, and some of these gangue minerals will enter the flotation concentrate during the flotation process, resulting in a relatively high MgO content in the flotation concentrate. high question. The flotation concentrate has certain requirements as the feed material for smelting. Flash smelting requires that the MgO content must be less than 6.5%. High content of MgO in the concentrate will lead to an increase in the temperature of the smelting furnace, an increase in the viscosity of the slag, and nodules in the furnace. Phase separation is difficult, resulting in lower recovery and increased smelting costs. [0003] Therefore, the technology of how to effectively reduce the magnesium element in copper-coba...

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Problems solved by technology

[0002] Copper-cobalt ore generally contains gangue minerals such as dolomite, talc, and serpentine, and some of these gangue minerals will enter the flotation concentrate during the flotation process, resulting in a relatively high MgO content in the flotation concentrate. high problem

The flotation concentrate has certain requirements as the feed material for smelting. Flash smelting requires that the MgO content must be lower than 6.5%. High content of MgO in the concentrate will lead to an increase in the temperature of the smelting furnace, an increase in the viscosity of the slag, and nodules in the furnace. Difficult phase separation, resulting in reduced recovery and increased smelting costs

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