Method for comprehensively recovering cobalt, copper and iron in cobalt-copper alloy

Abstract

The invention discloses a method for comprehensively recovering cobalt, copper and iron in a cobalt-copper alloy. The method is a full hydrometallurgical process and mainly comprises the following steps of: firstly, performing atomization oxidation on the molten cobalt-copper alloy by adopting high-pressure oxygen or oxygen-rich air to prepare powder; then adding a leaching agent, a catalyst and the cobalt-copper alloy into an autoclave, performing pressurized catalytic oxidative leaching to ensure that cobalt and copper in the cobalt-copper alloy are oxidized and leached out and enter a leach solution in the form of ions, wherein iron in the cobalt-copper alloy is leached, converted and finally remained in leach residues in the form of iron oxide red; finally, separating, purifying and refining the obtained leach solution to respectively obtain a cobalt product and a copper product which meet the international standard, and performing magnetic separation on the leach residues by adopting a strong magnetic separation method to obtain an iron oxide red product meeting the international standard. The method has the advantages of short flow, simplicity in operation, low energy consumption, high metal recovery rate, low cost and the like, and the comprehensive recovery utilization of the high-content iron in the cobalt-copper alloy is realized.

Description

Technical field [0001] The present invention involves a wet metallurgical method of cobalt copper alloy and an effective method of multi -metal, copper, and iron in a comprehensive recycling of multi -metal, copper, and iron in a comprehensive recycling of cobalt and copper alloys.method. Background technique [0002] The cobalt copper alloy is a copper smelting process. After the turntable residue obtained by the turntable furnace is made of sulfur and reducing melting, the alloy residue rich in copper, cobalt, iron and other elements is obtained.This alloy generally contains 8%to 30%of cobalt, 10%to 35%of copper, 10%to 50%of iron, in addition, it also contains a certain amount of silicon, manganese, and nickel.When the alloy contains copper height, the color of the alloy appears purple -red, which is called red alloy; when the alloy contains cobalt high, the color of the alloy is gray -white, which is called white alloy.The alloy is a water quenching product. When the sudden co...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the low leaching rate, low efficiency, high energy consumption, environmental pollution, large amount of slag, low recovery rate of cobalt and copper in the prior art, and more importantly, the iron in the alloy cannot be comprehensively recycled. and other disadvantages, a clean, efficient, high comprehensive resource utilization rate, green and environmentally friendly method for comprehensive recovery of cobalt, copper, and iron in cobalt-copper alloys is provided. The method has the advantages of short process, simple operation, low raw material consumption, and low energy consumption. , high metal recovery rate, low production cost, etc., can achieve clean, energy-saving, and environmentally friendly metallurgical purposes, especially the comprehensive recovery of high-content iron in cobalt-copper alloys, so that the iron in it can be used as a resource and turn waste into treasure

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