Method for separating valuable metals from copper-cobalt alloy

A technology of valuable metals, copper and cobalt, applied in the direction of cobalt compounds, chemical instruments and methods, copper chloride, etc., can solve the problems of large wastewater discharge, slow rate, and high acid consumption, so as to improve the leaching rate and avoid acid consumption big effect

Active Publication Date: 2022-02-08
CENT SOUTH UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the problems of slow speed, high acid consumption, and large waste water discharge in the separation of existing copper-cobalt alloys, and provide a process for treating copper-cobalt alloys with high efficiency, low energy consumption and clean process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for separating valuable metals from copper-cobalt alloy
  • Method for separating valuable metals from copper-cobalt alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for separating valuable metals from copper-cobalt alloys, the process flow chart is as follows figure 1 shown, including the following steps:

[0043] S1: Use a jaw crusher or a ball mill to crush the copper-cobalt alloy, coarsely grind it, then sieve it, and weigh 4.00g of copper-cobalt alloy powder with a particle size of 0.1-0.335mm;

[0044]S2: Put the copper-cobalt alloy powder weighed in S1 into the alumina crucible and send it into the roasting furnace together. 20 minutes before the temperature rise, 50mL / min argon gas is introduced to discharge the residual air, and 100mL is introduced when the temperature rises to 550°C. / min of HCl gas, control the partial pressure of hydrogen chloride gas to 0.65MPa, and keep it warm for 8 hours, stop feeding HCl gas after the heat preservation is over, and wait for the sample to cool naturally;

[0045] S3: Weigh 2.00g of the cooled roasted product in S2, put it into a beaker with 100ml of pure water, and drop abo...

Embodiment 2

[0048] A method for separating valuable metals from copper-cobalt alloys, comprising the following steps:

[0049] S1: Use a jaw crusher or a ball mill to crush the copper-cobalt alloy, coarsely grind it, sieve it after coarse grinding, and then weigh 4.00 g of copper-cobalt alloy powder with a particle size of 0.1-0.335 mm.

[0050] S2: Put the copper-cobalt alloy powder in the alumina crucible and send it into the roasting furnace together. 20 minutes before the temperature rise, start to pass in 50mL / min argon gas to discharge the residual air; , control the partial pressure of hydrogen chloride gas to 0.8MPa, and keep it warm for 5 hours. After the heat preservation is over, stop feeding HCl gas, and wait for the sample to cool naturally.

[0051] S3: Weigh 2.00g of the cooled roasted product, put it into a beaker with 100ml of pure water, and add about 0.8g of concentrated hydrochloric acid (concentration greater than 33%) dropwise, place the beaker in a water bath at 50°...

Embodiment 3

[0054] A method for separating valuable metals from copper-cobalt alloys, comprising the following steps:

[0055] S1: Use a jaw crusher or a ball mill to crush the copper-cobalt alloy, coarsely grind it, sieve it after coarse grinding, and weigh 4.00 g of copper-cobalt alloy powder with a particle size of less than 0.05 mm.

[0056] S2: Put the copper-cobalt alloy powder in the alumina crucible and send it into the roasting furnace together. 20 minutes before the temperature rise, start to pass in 50mL / min of argon gas to discharge the residual air; Gas, control the partial pressure of hydrogen chloride gas to 0.65MPa, and keep it warm for 5 hours. After the heat preservation is over, stop feeding HCl gas, and wait for the sample to cool naturally.

[0057] S3: Weigh 2.00g of the cooled roasted product, put it into a beaker with 100ml of pure water, and add about 0.8g of concentrated hydrochloric acid (concentration greater than 33%) dropwise, place the beaker in a water bath...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for separating valuable metals from a copper-cobalt alloy. The method comprises the following steps: (1) crushing and / or grinding the copper-cobalt alloy to obtain copper-cobalt alloy particles; (2) roasting the copper-cobalt alloy particles in an atmosphere containing hydrogen chloride gas to obtain a roasted product; and (3) leaching valuable metals in the roasted product by using an aqueous solution. According to the method, the copper-cobalt alloy is roasted in the hydrogen chloride atmosphere, so that impurity silicon in the alloy is volatilized in the form of SiCl4, the high-silicon copper-cobalt alloy can be effectively treated, and compared with a traditional acid leaching process for treating the copper-cobalt alloy with the high silicon content, silica gel which is not beneficial to follow-up separation cannot be generated.

Description

technical field [0001] The invention belongs to the technical field of chemical smelting of copper-cobalt alloys, in particular to a method for separating valuable metals from copper-cobalt alloys. Background technique [0002] Cobalt is a relatively common element in nature. The average content in the earth's crust is about 17.3ppm. More than 90% of cobalt resources are in a dispersed state. There are basically no individual cobalt minerals, which are often associated with elements such as iron, nickel, and copper. Among the cobalt-containing minerals, the cobalt sulfide ores of the Democratic Republic of the Congo are more developed, such as sulfur copper cobalt ore, sulfur cobalt ore, and skhardtite, as well as cobaltite in Zambia, Canada, and the United States, as well as those in Ontario, Canada, and Morocco. Cobalt skutterudite and cobalt arsenite currently account for as much as 50% of the cobalt resource reserves of the DRC in Africa. With the mining of cobalt resou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B1/08C22B23/00C22B15/00C01G51/08C01G49/10C01G3/05
CPCC22B7/007C22B1/08C22B15/0069C22B23/0423C01G51/085C01G49/10C01G3/05Y02P10/20
Inventor 于大伟李浩张磊赵建伟郭学益田庆华
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap