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

Method for improving grades of fluorite ore concentrate and rare earth ore concentrate of baiyuneboite through high-gradient superconducting magnetic separation

A rare earth concentrate and superconducting magnetic technology, which is applied in chemical instruments and methods, wet separation, solid separation, etc., can solve problems affecting the grade of fluorite concentrate, achieve small footprint, realize comprehensive recovery, reduce The effect of emissions

Active Publication Date: 2019-05-17
INNER MONGOLIA UNIV OF SCI & TECH
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem in the prior art that the fluorite concentrate produced by the Baiyan Obo Mine contains a large amount of rare earth minerals and iron-containing impurity minerals, which seriously affects the grade of the fluorite concentrate, the present invention provides a high-gradient superconducting magnetic separation to improve the fluorite concentration of the Baiyan Obo Mine. The method of fluorite concentrate grade, through high-gradient superconducting magnetic separation, magnetic separation of fluorite, rare earth minerals and iron-containing impurity minerals in fluorite concentrate, a process for improving the grade of fluorite concentrate

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 grades of fluorite ore concentrate and rare earth ore concentrate of baiyuneboite through high-gradient superconducting magnetic separation
  • Method for improving grades of fluorite ore concentrate and rare earth ore concentrate of baiyuneboite through high-gradient superconducting magnetic separation
  • Method for improving grades of fluorite ore concentrate and rare earth ore concentrate of baiyuneboite through high-gradient superconducting magnetic separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 A method for improving the grade of fluorite concentrate in Baiyan Obo Mine by high-gradient superconducting magnetic separation

[0035] The raw materials used are flotation fluorite concentrate from Baiyun Obo mine, fluorite concentrate CaF 2 The grade is 88.6%, and the mass content of REO is 3.4%.

[0036]Using high gradient superconducting magnetic separator for high gradient superconducting magnetic separation, the process is as follows figure 2 shown. During the test, a high-gradient superconducting magnetic separator was used, and steel wool with a diameter of 0.12mm was used to gather magnetic media, and the magnetic field strength was 4.0T. First grind the fluorite concentrate, add water, and adjust the pulp until the pulp concentration is 12%, and the pulp flow rate is 10cm / s. After high-gradient superconducting magnetic separation, the non-magnetic product obtained is high-grade fluorite concentrate. The magnetic product is a rare earth enrichme...

Embodiment 2

[0040] Example 2 A method for improving the grade of fluorite concentrate in Baiyan Obo Mine by high-gradient superconducting magnetic separation

[0041] The raw material used is the flotation fluorite concentrate of Baiyun Obo Mine, and the fluorite concentrate CaF 2 The grade is 75.41%, and the REO content is 8.05%.

[0042] High-gradient superconducting magnetic separator is used for high-gradient superconducting magnetic separation, through the high-gradient superconducting magnetic separation process of "one rough, one fine, one sweep", roughing tailings regrinding, medium ore returning to roughing, such as image 3 shown. The magnetic gathering medium used in the magnetic separator adopts steel wool with a diameter of 0.15mm and a diamond-shaped steel mesh of 2mm×4mm, and is used in 1:1 combination.

[0043] After roughing, the roughing concentrate and roughing tailings are obtained, and the roughing concentrate is further refined to obtain a non-magnetic product, tha...

Embodiment 3

[0050] Example 3 A method of high gradient superconducting magnetic separation to improve the grade of rare earth concentrate in Baiyan Obo Mine

[0051] The raw material is the flotation rare earth concentrate of Baiyun Obo Mine, and the REO grade of the rare earth concentrate is 50.5%. The high-gradient superconducting magnetic separation closed-circuit process of "one rough and one fine" by using high-gradient superconducting magnetic separator, and the selected tailings return to roughing, the process is as follows Figure 4 shown. The magnetic gathering medium in the superconducting magnetic separator adopts a combination of steel wool with a diameter of 0.12mm and steel wool with a diameter of 0.15mm.

[0052] The roughing conditions are: magnetic field strength 4.5T, pulp concentration 10%, test pulp flow rate 12cm / s;

[0053] The selection conditions are: magnetic field strength 4.0T, pulp concentration 8%, test pulp flow rate 9cm / s;

[0054] Ultimately, the weak ma...

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
magnetic flux densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for improving grades of fluorite ore concentrate and rare earth ore concentrate of baiyuneboite through high-gradient superconducting magnetic separation. Fluorite ore concentrate graded from baiyuneboite is subjected to magnetic separation through a high-gradient superconducting magnetic separator by a high-gradient superconducting magnetic separation technology,so that the grade of CaF2 in the fluorite ore concentrate is improved to 90-99%, a mineral separating index of fluorite of the baiyuneboite is improved, and rare earth enrichment is obtained at the same time. The superconducting magnetic separation method is similarly suitable for rare earth ore concentrate products in the baiyuneboite, the grade of REO in the rare earth ore concentrate is improved to be more than 60%. According to the high-gradient superconducting magnetic separation technology, the simpleness and the high efficiency are realized, the occupied area is small, the power consumption is small, the cost is low, no chemical agent is used, water is directly recycled, and the environmental friendliness is achieved; and according to the method for improving the grades of the fluorite ore concentrate and the rare earth ore concentrate of the baiyuneboite through the high-gradient superconducting magnetic separation, the concentrate grades of the fluorite ore concentrate and the rare earth ore concentrate of the baiyuneboite are greatly improved, and the technical problems that the grade of the fluorite ore concentrate sorted from the baiyuneboite is low and the inclusion content of weak magnetic mineral rare earth is high are effectively solved.

Description

technical field [0001] The invention relates to the technical field of sorting and separating valuable minerals such as fluorite and rare earth in Baiyun Obo Mine, in particular to a method for improving the grade of fluorite concentrate and rare earth concentrate by high-gradient superconducting magnetic separation. Background technique [0002] Fluorite is the main source of fluorine, according to the CaF in fluorite 2 The amount of content can be divided into different grades. Acid grade fluorspar requires CaF 2 The content is more than 97%. It is mainly used in the production of hydrofluoric acid in the chemical industry. Hydrofluoric acid can be used to synthesize fluorine monomers, organic fluorides or inorganic fluorides, which are used in refrigeration, medicine, aerospace, defense industries and other fields; ceramic grade fluoride Stone Requirement CaF 2 The content is 85-95%, mainly used in building materials, glass, ceramics and other industries; metallurgical...

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): B03B7/00B03B9/00
Inventor 李保卫张雪峰王建英王介良雷霄马强贾艳鞠向明杨昌桥吴旭赵德胜贾晓林
Owner INNER MONGOLIA UNIV OF SCI & TECH
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