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

Niobium-zirconium ore mineral separation method

A separation method, technology of niobium-zirconium ore, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of low recovery rate, low recovery rate of fine-grained tantalum-niobium ore, and low processing capacity, and achieve recovery rate-enhancing effect

Inactive Publication Date: 2015-05-13
广东省工业技术研究院(广州有色金属研究院)
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technical solution is that the centrifuge is used for sorting and the shaking table has a low processing capacity, and the -0.02mm tantalum-niobium ore cannot be recovered, resulting in a low recovery rate.
The disadvantage of this technical solution is that the fine-grained tantalum-niobium ore is pre-removed after being concentrated and deslimed by a spiral classifier, and it is not recovered.
The disadvantage of this technical solution is that the recovery rate of fine-grained tantalum-niobium ore is extremely low in spreading chute and shaker

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
  • Niobium-zirconium ore mineral separation method
  • Niobium-zirconium ore mineral separation method
  • Niobium-zirconium ore mineral separation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The raw ore of a niobium-zirconium ore in Shaanxi contains Nb 2 o 5 0.081%, ZrO 2 0.56%.

[0013] Grinding: crushing, grinding to -0.043mm accounts for 95%;

[0014] Wet magnetic separation: the magnetic field strength is 1000mT, the pulsation frequency is 200r / min, wet magnetic separation can separate niobium-containing magnetic minerals from zirconium-containing non-magnetic minerals, obtain niobium-containing magnetite concentrates and zirconium-containing tailings, and initially enrich niobium minerals ;

[0015] Flotation of niobium-containing magnetic concentrates: using a combination of water glass and hydroxamic acid, a process of primary roughing, secondary sweeping, and secondary beneficiation to obtain niobium concentrates by flotation of niobium-containing magnetic concentrates. Among them, the amount of rough water glass is 2000g / t, stirred for 5 minutes, the amount of hydroxamic acid is 600g / t, stirred for 3 minutes; the amount of sweeping monohydroxa...

Embodiment 2

[0021] The original ore of a niobium-zirconium ore in Jiangxi contains Nb 2 o 5 0.11%, ZrO 2 0.84%.

[0022] Grinding: crushing, grinding to -0.043mm accounts for 98%;

[0023] Wet magnetic separation: the magnetic field strength is 1100mT, the pulsation frequency is 200r / min, wet strong magnetic separation can separate niobium-containing magnetic minerals from zirconium-containing non-magnetic minerals, and obtain niobium-containing magnetic concentrates and zirconium-containing tailings, making niobium minerals initially rich set;

[0024] Flotation of niobium-containing magnetic concentrates: using a combination of water glass and hydroxamic acid, a process of primary roughing, primary sweeping, and secondary beneficiation to obtain niobium concentrates by flotation of niobium-containing magnetic concentrates. Among them, the dosage of rough water glass is 1200g / t, stirred for 3 minutes, the dosage of hydroxamic acid is 400g / t, stirred for 3 minutes; the dosage of swee...

Embodiment 3

[0030] A niobium-zirconium ore in Inner Mongolia contains Nb 2 o 5 0.051%, ZrO 2 0.46%.

[0031] Grinding: crushing, grinding to -0.043mm accounts for 92%;

[0032] Wet magnetic separation: the magnetic field strength is 900mT, the pulsation frequency is 200r / min, wet strong magnetic separation can separate niobium-containing magnetic minerals from zirconium-containing non-magnetic minerals, and obtain niobium-containing magnetite concentrates and zirconium-containing tailings, making the niobium minerals initially rich set;

[0033] Niobium-containing magnetic concentrate flotation: use the combination of water glass and hydroxamic acid to obtain niobium concentrate by flotation of niobium-containing magnetic concentrate through a process of roughing, sweeping and beneficiation. Among them, the dosage of rough water glass is 500g / t, stirred for 1 minute, the dosage of hydroxamic acid is 100g / t, stirred for 5 minutes; the dosage of sweeping monohydroxamic acid is 50g / t; t...

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

A niobium-zirconium ore mineral separation method is characterized by including the following steps of conducting wet magnetic separation to obtain zirconium-contained magnetic concentrates and niobium-contained tailings after grinding raw ore, conducting flotation on the zirconium-contained magnetic concentrates to obtain zirconium concentrates and flotation tailings with water glass as regulators and hydroximic acid granules as collectors, and conducting gravity separation by shaking tables on the niobium-contained tailings to obtain niobium concentrates and gravity separation tailings. The niobium-zirconium ore mineral separation method is simple in process; compared with the prior art, the Nb2O5 recovery rate is increased by about 20% and the ZrO2 recovery rate is increased by about 15%. The method is suitable for niobium-zirconium ore mines complex in mineral composition and fine in insetting grain size.

Description

technical field [0001] The invention relates to an ore dressing and separation method of niobium-zirconium ore. Background technique [0002] The rare metal tantalum and niobium is known as the key strategic metal material in the development of high technology in the 21st century. my country's annual total demand for tantalum and niobium is about 2,500 tons. With the development of science and technology, the domestic and foreign markets demand for it increases year by year. The main foreign tantalum and niobium mines have high raw ore grades, large scale deposits, associated with a variety of valuable elements, partial comprehensive utilization, and superior mining conditions. Tantalum resources in Australia and Canada (Ta 2 o 5 ) grade as high as 0.117~0.32%; niobium resources in Brazil, Australia and Canada (Nb 2 o 5 ) grade as high as 0.62~2.47%. my country's tantalum-niobium ore reserves rank among the top in the world, with tantalum ore occupying the first place...

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): B03B7/00B03D1/01
CPCB03B7/00B03D1/01
Inventor 高玉德邱显扬韩兆元王国生徐晓萍万丽
Owner 广东省工业技术研究院(广州有色金属研究院)
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