Ore dressing method for copper sulphide nickel ores with high pyrrhotite content

A copper-nickel sulfide and beneficiation method technology, which is applied to chemical instruments and methods, flotation, wet separation, etc., can solve the problems of low recovery rate of copper and nickel metal, high impurity content of concentrate, high consumption of reagents, etc. High consumption, good effect, and the effect of reducing metal loss in tailings

Active Publication Date: 2012-01-18
JILIN JIEN NICKEL IND
View PDF4 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the nature of the ore, in the production process of nickel ore with high content of pyrrhotite, there are usually serious problems such as low reco

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
  • Ore dressing method for copper sulphide nickel ores with high pyrrhotite content
  • Ore dressing method for copper sulphide nickel ores with high pyrrhotite content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below using the accompanying drawings and specific embodiments.

[0020] refer to figure 1 , a method for beneficiation of copper-nickel sulfide ore with high pyrrhotite content comprises the following steps in turn:

[0021] Copper-nickel sulfide ore centralized closed-circuit grinding process 1. The ore is fed into a closed-circuit grinding process composed of an overflow ball mill and a spiral classifier through a belt. The concentration and fineness of the first-stage grinding are 75%-80% and 25% respectively. -35%, the overflow concentration and fineness of the classifier are 38±2%, 50%-55%, respectively, the overflow of the classifier is fed to the hydrocyclone at the second stage classification, and the overflow concentration and fineness are 38±2% respectively 2%, 75%-80%, the qualified particle size enters the mixed flotation operation, and the unqualified particle size enters the second stage grinding. The conce...

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
Finenessaaaaaaaaaa
Login to view more

Abstract

The invention relates to an ore dressing method for copper sulfide nickel ores with high pyrrhotite content, belonging to the field of ore dressing methods for recovering copper and nickel metals from copper sulfide nickel ores. The ore dressing method comprises the following steps of: (1) carrying out closed circuit grinding in copper sulfide nickel ore aggregate; (2) carrying out bulk flotationon ground copper sulfide nickel ores; (3) carrying out open circuit choiceness on copper and nickel bulk concentrates obtained after bulk flotation; (4) separating copper and nickel from bulk concentrates obtained after open circuit choiceness; and (5) reselecting tailings produced by copper and nickel bulk flotation. In the invention, a specified proportion of ore dressing agent is added in a stage agent addition way in the flotation process, and nickel concentrates with 7.6% grade and 85.1% recovery rate and copper concentrates with 26.5% grade and 54% recovery rate can be obtained under the condition of 1.14% nickel grade and 0.3% copper grade of the original ores. The method has reliable and advanced process, high concentrate grade, good copper and nickel separation effect and high comprehensive recovery rate of valuable metals and is an ideal ore dressing method for copper sulfide nickel ores.

Description

technical field [0001] The invention belongs to the field of a beneficiation method for recovering copper and nickel from copper-nickel sulfide ore, in particular to a beneficiation method for nickel pyrrhotite ore with relatively high copper sulfide and nickel contents. Background technique [0002] At present, the nickel in the known copper-nickel sulfide ores mainly exists in the form of free nickel sulfide, such as pentlandite, pentlandite, and viridian nickelite, and a considerable part of nickel exists in the magnetic Among the pyrite. Since the main nickel-containing minerals are brittle, easily muddy and oxidizable iron-rich sulfide minerals, they are prone to mineral muddying in the crushing and grinding process with talc, chlorite, serpentine and other muddy gangue minerals. Phenomenon. In the traditional beneficiation process, copper-nickel sulfide ore usually adopts a multi-stage grinding process, using xanthate and butylamine black powder as sulfide mineral co...

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): B03B7/00B03B1/00B03D1/00B03D1/08
Inventor 李景峰刘玉江冯立伟刘绪光孙英崔商哲
Owner JILIN JIEN NICKEL IND
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