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

Flotation separating method for separating copper oxide ore and talc

A technology of copper oxide and beneficiation method, which is applied in flotation, solid separation, etc., can solve the problems of copper concentrate recovery rate impact, lower copper recovery rate, and large consumption of reagents, and achieve good selectivity and collection performance, inhibit Talc mineral, less environmental pollution effect

Active Publication Date: 2017-11-03
HUNAN RES INST FOR NONFERROUS METALS
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pre-removal of talc by gravity separation or flotation will lead to the loss of some copper minerals and reduce the recovery rate of copper; while the existing copper oxide selection process uses a single or combined inhibitor to suppress talc, which not only consumes a lot of chemicals, but also affects the copper concentrate. has a greater impact on the recovery rate of

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
  • Flotation separating method for separating copper oxide ore and talc
  • Flotation separating method for separating copper oxide ore and talc
  • Flotation separating method for separating copper oxide ore and talc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] For a certain copper oxide ore, the raw ore copper grade is about 3.85%. The copper in the raw ore is mainly malachite and azurite, and the gangue minerals are mainly talc and quartz.

[0027] Add sodium sulfide to the raw ore and grind until the fineness is 68%-74μm, the pH value of the pulp is 10.4, add 180g / t cyclic sodium pyrophosphate as a pulp dispersant, add 250g / ton of magnesium sulfate and 40g / ton of valeric acid polyacrylamide , after fully stirring, add diethylaminobutyl xanthate 120g / ton, flotation to obtain copper oxide rough concentrate and roughing tailings, roughing tailings add diethylaminobutyl xanthate for sweeping, sweeping a The amount of diethylaminobutyl xanthate used in and sweeping two is 30g / ton and 10g / ton respectively.

[0028] Magnesium sulfate and valeric acid polyacrylamide are added to the roughing concentrate for selection. The dosages of magnesium sulfate and valeric acid polyacrylamide for selection 1, selection 2 and selection 3 are 5...

Embodiment 2

[0036] A copper oxide mineral, the copper grade is about 2.05%, the copper mineral is mainly malachite, and the gangue minerals are mainly talc, kaolin, quartz and calcite.

[0037] Raw ore is ground by adding sodium sulfide, the fineness is 75%-74μm, the pH value of the pulp is 10.4, 200g / ton of cyclic sodium pyrophosphate and 300g / ton of water glass are added as pulp dispersants, and 300g / ton of magnesium sulfate and hydroxyvalol are added Acid polyacrylamide 50g / ton, after fully stirring, add diethylaminobutyl xanthate 100g / ton, flotation to obtain copper oxide coarse concentrate and roughing tailings, roughing tailings add diethylaminobutyl xanthate Sweeping is carried out, and the diethylaminobutyl xanthate consumption in the sweeping one and sweeping two is respectively 30g / ton and 10g / ton.

[0038] Magnesium sulfate and valeric acid polyacrylamide are added to the roughing concentrate for selection, and the dosages of magnesium sulfate and valeric acid polyacrylamide fo...

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 discloses a flotation separating method for copper oxide concentrate and talc. Copper oxide minerals are used as raw materials, sodium sulfide is added into raw ore for ore grinding, and the pH value of pulp after ore grinding is 10-10.5; annular sodium pyrophosphate and water glass are added to increase the negative potential on the surfaces of the minerals, the electrostatic repulsion effect among particles is improved, and the pulp is fully dispersed; a combined inhibitor comprising magnesium sulfate and mevolate polyacrylamide is added; and finally diethylamino butyl xanthate is added and used as a copper mineral collecting agent, and efficient separation of the copper oxide mineral and talc is achieved. The flotation agent combination is low-toxic or nontoxic, and has the characteristics of being small in application quantity, good in effect and the like; and the environment-friendly and efficient flotation separating method for the copper oxide mineral and talc is provided.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a flotation separation method for copper oxide concentrate and talc. Background technique [0002] As a mineral with high magnesium content, talc has natural hydrophobicity and good natural buoyancy. In the process of copper flotation, talc often enters copper concentrate together with copper minerals, resulting in high magnesium content in copper concentrate. Moreover, the hardness of talc is very low and easy to muddy, and the formed slime is easy to cover with copper oxide minerals, which seriously hinders the interaction between collectors and target minerals, and affects the flotation recovery of copper minerals. At present, the separation of copper oxide and talc at home and abroad mainly adopts the following three methods: (1) remove fine talc by pre-deliming (2) pre-float talc and then flotation copper oxide (3) add talc inhibitor and then Flotatio...

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): B03D1/00B03D1/08B03B1/04B03D1/012B03D1/018B03D101/02B03D101/06
CPCB03B1/04B03D1/00B03D1/012B03D1/018B03D1/087B03D2201/005B03D2201/02B03D2201/06
Inventor 胡波陈代雄杨建文董艳红朱雅卓曾慧明肖骏
Owner HUNAN RES INST FOR NONFERROUS METALS
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