Method for extraction treating of copper-cobalt alloy by using metal melt

A metal melt and alloy technology, applied in the field of smelting, can solve the problems of serious equipment loss, high energy consumption in the pretreatment process, and high hardness of copper-cobalt alloys, and achieve the effects of low cost, good leaching effect, and easy breakage.

Pending Publication Date: 2020-05-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high hardness of copper-cobalt alloy, the energy consumption of this pretreatment process is very high, and the equipment loss is serious

Method used

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  • Method for extraction treating of copper-cobalt alloy by using metal melt
  • Method for extraction treating of copper-cobalt alloy by using metal melt
  • Method for extraction treating of copper-cobalt alloy by using metal melt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of method utilizing metal melt extraction of the present invention to process copper-cobalt alloy comprises the following steps:

[0037] (1) Mix copper-cobalt alloy (Cu 21.8%, Co 33.8%, Fe 33.3%, Si11.2%) with a particle size of 0.1 to 2 mm and magnesium particles (the mass ratio of alloy to magnesium is 1:5), and add it to the crucible In this method, the magnesium is melted by heating to 850°C under an inert protective atmosphere. After 1 hour, the tube furnace is tilted to make the melt flow through the titanium mesh and separate from the residual alloy. The morphology of the residual alloy is shown in figure 2 , it can be seen that the surface of the residual alloy is porous;

[0038] (2) The extracted melt separated in step (1) was distilled at 100 Pa and 900° C. for 2 hours to separate magnesium and copper.

[0039] Adopt inductively coupled plasma optical emission spectrometer to detect the composition of residual alloy and distill and separate the comp...

Embodiment 2

[0042] A kind of method utilizing metal melt extraction of the present invention to process copper-cobalt alloy comprises the following steps:

[0043] (1) Mix copper-cobalt alloy (Cu 21.8%, Co 33.8%, Fe 33.3%, Si11.2%) with a particle size of 0.1 to 2 mm and magnesium and lead particles with a mass ratio of 1:3 (copper-cobalt alloy and magnesium The mass ratio of the total mass of lead is 1:5), put it into the crucible, heat to 900°C under an inert protective atmosphere to melt the magnesium and lead, and tilt the tube furnace after 1 hour to make the melt flow through the titanium mesh to separate from the residual alloy ;

[0044] (2) Distill the extracted melt at 50 Pa and 1100°C for 2 hours to separate magnesium, lead and copper.

[0045]Use an inductively coupled plasma emission spectrometer to detect the composition of the residual alloy and the composition of the copper powder separated by distillation, and extract the mass percentage of each component in the residual...

Embodiment 3

[0047] A kind of method utilizing metal melt extraction of the present invention to process copper-cobalt alloy comprises the following steps:

[0048] (1) Mix copper-cobalt alloy (Cu 21.8%, Co 33.8%, Fe 33.3%, Si 11.2%) with a particle size of 2 to 4 mm with magnesium particles (the mass ratio of copper-cobalt alloy to magnesium is 1:10), add In the crucible, heat to 800°C under an inert protective atmosphere to melt the magnesium. After 1 hour, tilt the tube furnace to make the melt flow through the titanium mesh to separate from the residual alloy;

[0049] (2) Distill the extracted melt for 1 hour under the conditions of 100 Pa and 900° C. to separate magnesium and copper.

[0050] Use an inductively coupled plasma emission spectrometer to detect the composition of the residual alloy and the composition of the copper powder separated by distillation, and extract the mass percentage of each component in the residual alloy Cu 0.1%, Co 41.5%, Fe 43.2%, Si14.2% , the mass per...

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Abstract

The invention discloses a method for extraction treating of a copper-cobalt alloy by using metal melt. The method comprises the following steps that (1) a to-be-treated copper-cobalt alloy and a metalextraction medium are put into a crucible, heating is conducted under an inert protective atmosphere to melt the metal extraction medium, heat preservation is conducted, and solid-liquid separationis conducted after copper in the alloy enters the metal melt to obtain a residual alloy and an extracted melt; and (2) vacuum distillation is conducted on the extracted melt to separate the extractionmedium and the copper, and the copper is extracted. According to the method, the metal copper separated from extraction treating of the copper-cobalt alloy by using the metal melt can be used as a high-quality raw material for producing copper products, separated porous iron-cobalt-silicon alloy particles have large specific surface area and are extremely easy to break, and the leaching effect isgood when acid leaching is adopted subsequently.

Description

technical field [0001] The invention belongs to the field of smelting and relates to a method for extracting and separating valuable metals such as cobalt and copper from a copper-cobalt alloy by using a metal melt extraction method. Background technique [0002] In recent years, the consumption of copper and cobalt in my country has increased significantly. However, due to the constraints of mineral resources, the supply and demand situation is severe. The external dependence of my country's copper resources has always been maintained at about 70%, and the external dependence of cobalt resources has remained at about 90%. Therefore, both copper and cobalt are metal resources that are seriously in short supply in my country. Congo (Kinshasa) and Zambia are the world's largest cobalt resource countries. Copper-cobalt alloys are made by reducing and smelting copper oxide and cobalt concentrates in electric furnaces. The main content is copper: 10-70%, iron: 5%-50%, cobalt: 10%...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B15/00
CPCC22B7/004C22B15/0045Y02P10/20
Inventor 于大伟张纯熹郭学益田庆华崔富晖甘向栋
Owner CENT SOUTH UNIV
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