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Recovery method of copper-cobalt ore

A recovery method, copper and cobalt technology, applied in chemical instruments and methods, magnetic separation, solid separation, etc., can solve the difficulty and cost of smelting operations, the inability to achieve effective separation of copper and cobalt, and the comprehensive recovery of valuable metal iron, etc. problems, to achieve the effect of improving resource utilization, inhibiting sulfide minerals, and improving grades

Active Publication Date: 2021-04-02
CHINA ENFI ENGINEERING CORPORATION
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  • Claims
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AI Technical Summary

Problems solved by technology

It can be seen from the current reports on the recovery of cobalt from copper-cobalt mines that in order to ensure the recovery rate of copper and cobalt, copper-cobalt mines often use the mixed flotation method to recover copper and cobalt in the form of copper-cobalt mixed concentrate. The effective separation of copper and cobalt cannot be achieved, which increases the difficulty and cost of subsequent smelting operations
At the same time, for copper-cobalt ores that contain associated element iron mainly in the form of magnetic iron, generally after copper and cobalt are recovered, the flotation tailings are directly filled with tailings, ignoring the comprehensive recovery of valuable metal iron, resulting in waste of

Method used

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  • Recovery method of copper-cobalt ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A copper-cobalt ore has a copper grade of 2.02%, a cobalt grade of 0.083%, and an iron grade of 4.96%.

[0044] Such as figure 1 Shown, the recovery method of copper-cobalt ore comprises the steps:

[0045] (1) The copper-cobalt ore raw ore is ground by a ball mill, and the grinding fineness is -0.074mm, which accounts for 60%, and the slurry pH regulator lime is added to the grinding slurry, so that the pH value of the slurry is 11;

[0046] (2) Copper-cobalt ore flotation roughing: Copper-cobalt mixed flotation roughing is carried out on the pulp, and 60g / t is added during the roughing process 原矿 Collector mixture of butyl xanthate and thiazidiene ester, wherein the mass ratio of butyl xanthate and thiazidiene ester is 1:1, add 10g / t 原矿 Foaming agent MIBC, the flotation time is 5min, to obtain copper-cobalt rough concentrate and rougher tailings;

[0047] (3) Sweeping of rougher tailings: carry out two stages of sweeping to the mixed flotation rougher tailings obta...

Embodiment 2

[0056] A copper-cobalt ore has a copper grade of 2.66%, a cobalt grade of 0.11%, and an iron grade of 5.68%.

[0057] Such as figure 1 Shown, the recovery method of copper-cobalt ore comprises the steps:

[0058] (1) The raw ore of copper-cobalt ore is ground by a ball mill, and the grinding fineness is -0.074mm, which accounts for 65%, and the slurry pH regulator lime is added to the grinding slurry, so that the pH value of the slurry is 10;

[0059] (2) Copper-cobalt ore flotation roughing: Copper-cobalt mixed flotation roughing is carried out on the pulp, and 70g / t is added during the roughing process 原矿 The mixture of collector butyl xanthate and thiazidiene ester, wherein the mass ratio of butyl xanthate and thiazidiene ester is 3:7, add 20g / t 原矿 Foaming agent MIBC, the flotation time is 5min, to obtain copper-cobalt rough concentrate and rougher tailings;

[0060] (3) Sweeping of rougher tailings: carry out two stages of sweeping to the mixed flotation rougher tailing...

Embodiment 3

[0069] A copper-cobalt ore has a copper grade of 3.78%, a cobalt grade of 0.156%, and an iron grade of 4.76%.

[0070] Such as figure 1 Shown, the recovery method of copper-cobalt ore comprises the steps:

[0071] (1) The copper-cobalt ore raw ore is ground by a ball mill, and the grinding fineness is -0.074mm, which accounts for 70%, and the slurry pH regulator lime is added to the grinding slurry, so that the pH value of the slurry is 10.5;

[0072] (2) Copper-cobalt ore flotation roughing: Copper-cobalt mixed flotation roughing is carried out on the pulp, and 70g / t is added during the roughing process 原矿 Collector mixture of butyl xanthate and thiazidiene ester, wherein the mass ratio of butyl xanthate and thiazidiene ester is 7:3, add 15g / t 原矿 The frother MIBC, the flotation time is 5min, to obtain copper-cobalt rough concentrate and rougher tailings;

[0073] (3) Sweeping of rougher tailings: carry out two stages of sweeping to the mixed flotation rougher tailings obta...

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Abstract

The invention discloses a recovery method of copper-cobalt ore. The recovery method comprises the following steps: a, adding a pH regulator into the copper-cobalt ore, and conducting grinding to obtain ore pulp; b, adding a collecting agent butyl xanthate and sulfur nitrogen 2-cyanoethyl ester mixture is added into the ore pulp obtained in the step a for copper-cobalt bulk flotation roughing, so as to obtain copper-cobalt rough concentrate and roughing tailings; c, subjecting the copper-cobalt rough concentrate obtained in the step b to concentration, so as to obtain copper-cobalt concentrate;d, regrinding the copper-cobalt concentrate obtained in the step c to obtain ore pulp; e, adding a regulator comprising lime, sodium humate and calcium hypochlorite into the ore pulp obtained in thestep d, and carrying out roughing to obtain copper-cobalt separation concentrate and copper-cobalt separation tailings; and f, conducting cobalt roughing on the copper-cobalt separation tailings obtained in the step d, so as to obtain cobalt rough concentrate. By means of the method, copper and cobalt can be effectively separated, magnetic iron in the flotation tailings can be recycled, the technological process is simple, and application is easy.

Description

technical field [0001] The invention belongs to the technical field of ore flotation, and in particular relates to a method for recovering copper-cobalt ore. Background technique [0002] Cobalt is an important strategic resource and plays an important role in the development of national economy and social economy. It can be seen from the current reports on the recovery of cobalt from copper-cobalt mines that in order to ensure the recovery rate of copper and cobalt, copper-cobalt mines often use the mixed flotation method to recover copper and cobalt in the form of copper-cobalt mixed concentrate. Effective separation of copper and cobalt cannot be achieved, which increases the difficulty and cost of subsequent smelting operations. At the same time, for the copper-cobalt ore containing the associated element iron mainly in the form of magnetic iron, generally after the recovery of copper and cobalt, the flotation tailings are directly filled with tailings, ignoring the com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/018B03C1/00B03D103/02B03D101/02
CPCB03D1/00B03D1/018B03C1/00B03D2203/02B03D2201/02B03D2201/007Y02P10/20
Inventor 王亚运郭素红邓朝安王鑫王传龙康金星宋磊刘志国于传兵尤腾胜
Owner CHINA ENFI ENGINEERING CORPORATION
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