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Beneficiation method for separating copper and cobalt

A beneficiation method, copper-cobalt technology, applied in solid separation, flotation, etc., can solve the problems of low copper-cobalt grade in mixed concentrate, high transportation cost per ton of metal, and high cost investment in metallurgical system, so as to reduce concentrate transportation and Metallurgical cost, strong applicability and cheap price

Inactive Publication Date: 2018-09-28
WANBAO MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the concentrator mainly produces copper-cobalt mixed concentrate. The mixed concentrate needs to be transported back to China for further processing or on-site rough processing before being transported back to China for processing. Low coefficient, high transportation cost per ton of metal, loss of recovery rate, high investment in metallurgical system, etc.

Method used

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  • Beneficiation method for separating copper and cobalt
  • Beneficiation method for separating copper and cobalt
  • Beneficiation method for separating copper and cobalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In a foreign copper-cobalt sulfide mine, the original ore contains 1.13% Cu and 0.286% Co. Copper in the ore mainly exists in the form of independent minerals such as chalcopyrite, chalcocite, copper blue and natural copper; cobalt mainly exists in the form of independent minerals such as sulfur copper cobalt It exists in the form of ore, and then it is distributed in pyrite in the form of isomorphism, and the distribution law reaches 50%.

[0054] After the raw ore is crushed, ore-grinded, and slurried, -0.074mm accounts for 75%, and the ore content is 30%. The copper-cobalt mixed flotation process uses sodium hydrosulfide as an adjustment agent, and ethyl xanthate and ethyl thiocarbamate as a mixed collection agent, sodium carboxymethyl cellulose is added as a regulator in the selection process, and the specific drug system is shown in Table 1; the copper-cobalt separation and flotation process uses lime to adjust the pH to 12.15, and sodium carboxymethyl cellulose is ...

Embodiment 2

[0059] In a foreign copper-cobalt sulfide mine, the original ore contains 1.78% Cu and 0.461% Co. Copper in the ore mainly exists in the form of independent minerals such as chalcopyrite, bornite and chalcocite; cobalt mainly exists in the form of independent mineral sulfur copper ore The form exists, followed by the isomorphic form in pyrite, and the distribution law reaches 55%.

[0060] After crushing, grinding, and pulping, -0.074mm accounts for 78% of the raw ore, and the ore content is 29%. The copper-cobalt mixed flotation and copper-cobalt separation and sorting are carried out using the reagent system in Table 1 and Table 2 to obtain copper concentrate containing Cu33.49%, Co0.70%, cobalt concentrate contains Cu4.91%, Co10.58%, the total recovery rate of copper is 95.78%, and the total recovery rate of cobalt is 93.83%. The specific results are shown in Table 4.

[0061] Table 4

[0062]

[0063]

Embodiment 3

[0065] In a foreign copper-cobalt sulfide mine, the original ore contains Cu0.97% and Co0.255%. Copper in the ore mainly exists in the form of independent minerals such as chalcopyrite, chalcocite and natural copper; It exists in the form of pyrite, and then it is distributed in pyrite in the form of isomorphism, and the distribution law reaches 40%.

[0066] After the raw ore is crushed, ore-grinded, and slurried, -0.074mm accounts for 70%, and the ore content is 30%. The chemical system in Table 1 and Table 2 is used for copper-cobalt mixed flotation and copper-cobalt separation to obtain copper concentrate containing Cu37.05%, Co0.788%, cobalt concentrate contains Cu3.68%, Co7.95%, the total recovery rate of copper is 93.13%, and the total recovery rate of cobalt is 90.29%. The specific results are shown in Table 5.

[0067] table 5

[0068]

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Abstract

The invention belongs to the field of mineral processing, and particularly relates to a beneficiation method for separating copper and cobalt of pyrite copper sulphide cobalt ores including cobalt. The beneficiation method comprises the steps that comminuting, slurry preparation and copper-cobalt bulk flotation are carried out; ore pulp is subjected to one time of roughing and two times of scavenging, and copper-cobalt mixed roughing concentrate, scavenging concentrate and tailings are obtained; the copper-cobalt mixed roughing concentrate is subjected to concentration three times, and copper-cobalt mixed concentrate is obtained; then copper-cobalt separating flotation is carried out; the copper-cobalt mixed concentrate is subjected to one time of copper-cobalt separating roughing and twotimes of copper-cobalt separating scavenging, and copper-cobalt separating roughing concentrate and cobalt concentrate are obtained; and the copper-cobalt separating roughing concentrate is subjectedto one time of copper-cobalt separating concentration, and copper concentrate is obtained. According to the beneficiation method, separation of the copper concentrate and cobalt concentrate is effectively achieved, cost is reduced, and economic benefits are increased; and meanwhile proper copper sulphide concentrate and cobalt sulphide concentrate are provided for the subsequent metallurgy process.

Description

technical field [0001] The invention belongs to the field of mineral processing, and in particular relates to a copper-cobalt separation and beneficiation method for copper-cobalt sulfide ore containing cobalt in pyrite. Background technique [0002] my country's cobalt resources are very short, and it is one of the non-ferrous metals with the highest foreign dependence. Cobalt is mainly associated resources of copper and nickel mines. According to statistics, 50% of cobalt comes from by-products of nickel, and 44% of cobalt comes from copper and other resources. A by-product of the metal, only 6% of the cobalt comes from primary cobalt ore. my country's cobalt metal mainly comes from imported copper-cobalt ore or cobalt oxide ore, so copper-cobalt separation technology has become the key to the full utilization of cobalt resources. [0003] Flotation is one of the main methods of sorting copper-cobalt sulfide ores. The conventional flotation process includes: 1) Mixed flota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D1/002B03D101/02B03D101/00B03D103/02
Inventor 巴红飞段景文王振堂
Owner WANBAO MINING
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