Leaching method for alloy material obtained from magnetic copper-nickel concentrate

A leaching, copper-nickel technology, applied in the direction of process efficiency improvement, etc., can solve the problem of high recovery rate of platinum group metals, achieve the effect of environmental friendliness, simple and efficient method, and solve environmental pollution problems

Inactive Publication Date: 2008-09-10
JINCHUAN GROUP LIMITED
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the above-mentioned technologies, to provide a recycling process that is simple, low energy consumption, high recovery rate of platinum group metals, and can effectively improve wor

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
  • Leaching method for alloy material obtained from magnetic copper-nickel concentrate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Example 1

[0015] The raw material composition of the alloy material for leaching the magnetic separation copper-nickel concentrate is as follows:

[0016] Table 1 Alloy material raw material composition of magnetic separation copper-nickel concentrate (%, g / t)

[0017] Ni(%) Co Cu Fe S SiO 2 Pt(g / t) Pd Au

[0018] 59.4 1.23 4.48 13.35 14.17 2.42 51.0 26.0 32.0

[0019] The material is evenly added to the batching slurry tank, and the pressure leaching return liquid, water and sulfuric acid are added to the batching slurry tank at the same time, and the liquid-solid ratio of the prepared slurry is 7m 3 / ton, the initial sulfuric acid concentration is 15g / l, pumped into a section of atmospheric oxidation tank, reacted at 80 ℃ for 4 hours; oxidative leaching was carried out under the condition of passing compressed air, and after oxidative leaching, it was pumped into the thickener through the intermediate tank for Liquid-solid separation. The thickener overflow...

Example Embodiment

[0022] Example 2

[0023] The raw material composition of the alloy material for leaching and magnetic separation of copper-nickel concentrate is the same as that in Table 1

[0024] The material is evenly added to the batching slurry tank, and the pressure leaching return liquid, water and sulfuric acid are added to the batching slurry tank at the same time, and the liquid-solid ratio of the prepared slurry is 7.5m. 3 / ton, the initial sulfuric acid concentration is 14g / l, pumped into a section of atmospheric oxidation tank, and reacted at 80 ° C for 4 hours; oxidative leaching was carried out under the condition of passing compressed air, and after oxidative leaching, it was pumped into the thickener through the intermediate tank for Liquid-solid separation. The thickener overflows into the atmospheric leachate storage tank.

[0025] The bottom of the thickener is pumped through the bottom flow of a slurry tank, and water and sulfuric acid are added to the slurry tank for...

Example Embodiment

[0027] Example 3

[0028] The raw material composition of the alloy material for leaching and magnetic separation of copper-nickel concentrate is the same as that in Table 1

[0029] The material is evenly added to the batching slurry tank, and the pressure leaching return liquid, water and sulfuric acid are added to the batching slurry tank at the same time, and the liquid-solid ratio of the prepared slurry is 8:1m 3 / ton, the initial sulfuric acid concentration is 13g / l, pumped into a section of atmospheric oxidation tank, and reacted at 85 ° C for 4 hours; under the condition of compressed air, oxidative leaching is carried out, and after oxidative leaching, it is pumped into the thickener through the middle tank for oxidative leaching. Liquid-solid separation. The thickener overflows into the atmospheric leachate storage tank.

[0030] The bottom of the thickener is pumped through the bottom flow of a slurry tank, and water and sulfuric acid are added to the slurry tank...

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

No PUM Login to view more

Abstract

The invention provides a method for leaching an alloy material obtained from the magnetic-separating copper-nickel ore concentrate, relating to a method for recycling the platinum group metals in the process of producing the metallic nickel, in particular to a method for recycling the platinum group metals from the fine alloy material of the leaching magnetic separation copper-nickel ore concentrate. The method is characterized in that the leaching process adopts two sections: one is leaching at standard atmosphere and the other is leaching with pressurization to obtain the leaching slag with high platinum group metals content and the leaching liquid with high nickel-copper content. The method of the invention processes the alloy material of the leaching magnetic separation copper-nickel ore concentrate by the wet method technique, and adopts the processing technique combining the sulphuric acid leaching at standard atmosphere and the leaching with pressurization to obtain the leaching liquid with high nickel-copper content and the leaching slag with high platinum group metals content; the leaching slag is directly used for recycling the platinum group metals and the leaching liquid enters the electrolytic nickel system. The method effectively solves the recycling problem of the platinum group metals and the problem of environmental protection, is simple and efficient and protects the environment.

Description

technical field [0001] A method for leaching alloy materials of magnetically separated nickel concentrates relates to a method for recovering platinum group metals in the production process of metal nickel, in particular to a method for recovering platinum group metals by leaching fine alloy materials of magnetically separated nickel concentrates. Background technique [0002] Since palladium group and precious metals usually co-exist in nickel minerals, platinum group metals (platinum, palladium, osmium, iridium, ruthenium, rhodium) must be recovered while producing nickel. At present, in the smelting process, the process related to the extraction of platinum group metals is to process the smelting intermediate product-copper-nickel high matte to obtain a copper-nickel alloy enriched with most of the precious metals, and part of it enters the nickel concentrate. The copper-nickel alloy enriched with platinum group metals is mixed with the nickel concentrate casting plate an...

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
IPC IPC(8): C22B3/08C22B11/00C22B23/00C22B15/00
CPCY02P10/20
Inventor 李尚勇王芳镇郑军福廖正泰欧晓健陈志寰徐军章丁才生杨永宁陆为民曹康学郑琦李全
Owner JINCHUAN GROUP LIMITED
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