Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving flotation recovery rate of copper and nickel and reducing content of magnesium oxide in concentrates of copper-nickel sulfide ores

A technology for copper-nickel sulfide ore and flotation recovery rate, which is applied in flotation, solid separation and other directions, can solve the problems of high dosage of regulators and has not yet been studied, and achieves the advantages of reducing content, increasing floatability, and promoting adsorption. Effect

Inactive Publication Date: 2013-09-18
CENT SOUTH UNIV
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of using the conditioner scheme are that the conditioner dosage is high and the conditioner may inhibit the flotation of sulfide minerals
However, there is no research on the effect of ultrasonic waves on the flotation of copper-nickel sulfide ores containing serpentine.

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 improving flotation recovery rate of copper and nickel and reducing content of magnesium oxide in concentrates of copper-nickel sulfide ores
  • Method for improving flotation recovery rate of copper and nickel and reducing content of magnesium oxide in concentrates of copper-nickel sulfide ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The ore sample is an ore sample from the copper-nickel sulfide mining area in Jinchuan, Gansu Province. One or several of xanthate, butyl xanthate, and pentaxanthate are used as collectors, and sodium carbonate is used as a pH regulator for foam flotation. .

[0016] The process is: grind the ore to -0.074mm, accounting for 65%, add a collector, use ultrasonic treatment for different times, and then conduct a rough separation. See Table 1 for the selection results. It can be seen from the data in Table 1 that by appropriately extending the ultrasonic treatment time, it is helpful for the flotation recovery of serpentine-type copper-nickel sulfide ore, and the recovery rate can be increased by about 4.5%.

[0017] Table 1 Ultrasound time test results

[0018]

Embodiment 2

[0020] The ore sample is an ore sample from the copper-nickel sulfide mining area in Jinchuan, Gansu Province. One or several of xanthate, butyl xanthate, and pentaxanthate were used as collectors, sodium carbonate was used as a pH regulator, and sodium hexametaphosphate was used. , Carboxymethyl cellulose (CMC) is used as a regulator for froth flotation.

[0021] The process is as follows: grind the ore to -0.074mm, accounting for 65%, add collectors and carry out dispersion control, and then conduct a rough separation. The coarse concentrate is subjected to ultrasonic dispersion treatment or chemical dispersion treatment, and then two selections are performed. The impact of different decentralized processing methods on selected indicators was compared, and the results are shown in Table 2. As can be seen from the data in Table 2, the use of ultrasonic treatment in the beneficiation process is helpful to the flotation recovery of serpentine-type copper-nickel sulfide ore, and...

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 relates to a method for improving the flotation recovery rate of copper and nickel and reducing content of magnesium oxide in concentrates of copper-nickel sulfide ores. According to the method, before the copper-nickel sulfide ores are subjected to flotation, ultrasonic waves are used for carrying out dispersion treatment on ore pulp. The ore pulp can be crude ore pulp added with a collecting agent, or ore pulp which comprises the collecting agent and enters a random flotation operation; the ultrasonication can be carried out before flotation and also can be simultaneously carried out with flotation. According to the invention, supersonic jet generated in the ultrasonic treatment and cavatition are utilized to desorb serpentine pulp covering the surface of sulphide mineral, the flotation recovery rate of the sulphide mineral is improved, the quantity of the serpentine pulp entering the concentrates is reduced and the content of magnesium oxide in the concentrates of the copper-nickel sulfide ores is reduced, so that a sorting index is improved.

Description

technical field [0001] The invention relates to a beneficiation method for increasing the flotation recovery rate of copper-nickel and reducing the magnesium oxide content of copper-nickel sulfide ore concentrate. By using this method, qualified sulfide ore concentrate can be obtained from serpentine-containing copper-nickel sulfide ore. Background technique [0002] In the flotation of copper-nickel sulfide ore, because the surface of serpentine is positively charged, it is easy to coagulate with sulfide minerals in heterogeneous phases, which not only deteriorates the flotation of sulfide minerals, but the positively charged serpentine slime adheres to the surface through electrostatic attraction. The negatively charged pentlandite surface enters the flotation concentrate together with the pentlandite, making it difficult to reduce the magnesium oxide content of the concentrate. Nickel sulfide concentrate flash furnace smelting requires that the magnesium oxide content of...

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): B03D1/00B03B1/00
Inventor 冯其明卢毅屏冯博吕沛超欧乐明张国范
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com