Method for extracting valuable metals in cobalt-copper alloy by virtue of full hydrometallurgy

A technology of cobalt-copper alloy and valuable metal, applied in the field of comprehensive recovery of cobalt, iron and copper in cobalt-copper alloy, can solve the problems of low leaching rate, low cobalt-copper recovery rate, complicated process, etc. Improve the overall effect and overcome the effect of high energy consumption

Active Publication Date: 2014-10-08
CHANGSHA RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art such as complex process, low leaching rate, high energy consumption, low efficiency, environmental pollution, large amount of slag, low recovery rate of cobalt and copper, and inability to comprehensively recycle iron in the alloy. Provide a clean, efficient, short process, simple operation, low energy consumption, high metal recovery rate, and low production cost method for extracting valuable metals in cobalt-copper alloys by full hydrometallurgy

Method used

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  • Method for extracting valuable metals in cobalt-copper alloy by virtue of full hydrometallurgy
  • Method for extracting valuable metals in cobalt-copper alloy by virtue of full hydrometallurgy
  • Method for extracting valuable metals in cobalt-copper alloy by virtue of full hydrometallurgy

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Effect test

Embodiment 1

[0042] a kind of like figure 1 The method for extracting valuable metals in the cobalt-copper alloy shown in the full hydrometallurgy of the present invention comprises the following steps:

[0043] (1) Gas atomization powder making: Add 50kg of cobalt-copper alloy raw materials with different particle sizes into the gas atomization powder making equipment, heat the cobalt-copper alloy raw materials to 1450°C, make them fully melt, and form a homogeneous melt that is evenly mixed. And keep the temperature for 40 minutes; then use high-pressure nitrogen to atomize the cobalt-copper alloy in the molten state to make powder, the gas pressure is controlled at 0.5Mpa to 5.0Mpa when the high-pressure nitrogen is atomized to make powder, and the obtained powder is sieved through a -200 mesh sieve. The particle size of the cobalt-copper alloy powder obtained after sieving is controlled at -200 mesh and greater than 90%, and the sieve after sieving is returned to the gas atomization po...

Embodiment 2

[0047] a kind of like figure 1 The method for extracting valuable metals in the cobalt-copper alloy shown in the full hydrometallurgy of the present invention comprises the following steps:

[0048] (1) Gas atomization powder making: Add 50kg of cobalt-copper alloy raw materials with different particle sizes into the gas atomization powder making equipment, heat the cobalt-copper alloy raw materials to 1450°C, make them fully melt, and form a homogeneous melt that is evenly mixed. And keep the temperature for 40 minutes; then use high-pressure nitrogen to atomize the cobalt-copper alloy in the molten state to make powder, the gas pressure is controlled at 0.5Mpa to 5.0Mpa when the high-pressure nitrogen is atomized to make powder, and the obtained powder is sieved through a -200 mesh sieve. The particle size of the cobalt-copper alloy powder obtained after sieving is controlled at -200 mesh and greater than 90%, and the sieve after sieving is returned to the gas atomization po...

Embodiment 3

[0052] a kind of like figure 1 The method for extracting valuable metals in the cobalt-copper alloy shown in the full hydrometallurgy of the present invention comprises the following steps:

[0053] (1) Gas atomization powder making: Add 50kg of cobalt-copper alloy raw materials with different particle sizes into the gas atomization powder making equipment, heat the cobalt-copper alloy raw materials to 1450°C, make them fully melt, and form a homogeneous melt that is evenly mixed. And keep the temperature for 40 minutes; then use high-pressure nitrogen to atomize the cobalt-copper alloy in the molten state to make powder, the gas pressure is controlled at 0.5Mpa to 5.0Mpa when the high-pressure nitrogen is atomized to make powder, and the obtained powder is sieved through a -200 mesh sieve. The particle size of the cobalt-copper alloy powder obtained after sieving is controlled at -200 mesh and greater than 90%, and the sieve after sieving is returned to the gas atomization po...

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Abstract

The invention discloses a method for extracting valuable metals in a cobalt-copper alloy by virtue of full hydrometallurgy. The method comprises the following steps: melting the cobalt-copper alloy in gas atomization powder manufacturing equipment, performing atomization and powder manufacturing on the molten cobalt-copper alloy by adopting high-pressure inert gas, and sieving to obtain cobalt-copper alloy powder; adding a leaching agent and the cobalt-copper alloy powder into a normal-pressure reactor, controlling the electrode potential of a reaction system in the normal-pressure reactor, heating to reach the leaching temperature, and introducing an oxidizing agent to perform selective leaching; enabling iron and cobalt in the cobalt-copper alloy powder to enter a leaching liquid; and ensuring that copper in the cobalt-copper alloy powder is inhibited in leaching slags and can not enter the leaching liquid; respectively performing metallurgical purification treatment on the leaching liquid and / or the leaching slags to obtain the corresponding valuable metals. The method disclosed by the invention has the advantages of cleanness, high efficiency, short process, simple operation, low energy consumption, high metal recovery rate and low production cost.

Description

technical field [0001] The invention belongs to a hydrometallurgical method for cobalt-copper alloys, in particular to a method for comprehensively recovering cobalt, copper and iron in cobalt-copper alloys. Background technique [0002] Cobalt-copper alloy, which is an alloy slag rich in copper, cobalt, iron and other elements obtained by converting the converter slag obtained by converter blowing in the copper smelting process to sulfur production in an electric furnace and reduction smelting. The cobalt-copper alloy generally contains cobalt, copper and iron, and also contains a certain amount of silicon, manganese and nickel. When the cobalt-copper alloy contains more copper, the outer color of the alloy is purplish red, which can be called red alloy; when the cobalt-copper alloy contains more cobalt, the outer color of the alloy is grayish white, which can be called white alloy. The cobalt-copper alloy is a product of water quenching, and the edge shrinks during quench...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/04C22B15/00C22B23/00C01G49/06C25C1/12
CPCY02P10/20
Inventor 侯晓川杨润德李贺
Owner CHANGSHA RES INST OF MINING & METALLURGY
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