Fluorspar Beneficiation Solutions

Solution Overview

This fluorite beneficiation solution provides a combined process of "re-election - flotation" for the characteristics of different types of fluorspar ores (CaF₂), and realizes the efficient separation of fluorspar from barite, quartz, sulfide ores and other veinstones through the differentiated sorting design. The program is especially suitable for the separation of complex associated fluorite ores, and the process can be flexibly adjusted according to the nature of the ore to ensure that high-quality fluorite concentrate is obtained.

Process Flow Details

Crushing System

• Three-stage and one closed-circuit crushing process

  • Jaw crusher for coarse crushing (crushing to -80mm)

  • Cone crusher for medium crushing (crushing to -20mm)

  • High pressure roller mill for fine crushing (crushing to -5mm)

• Vibrating screen to form a closed-circuit cycle, to ensure that the particle size of the mill is qualified.

• Equipped with dust removal system to realize clean production

Pre-selected waste disposal system

• Adopting jigger to process +2mm coarse-grained materials

• 15-30% of low-grade waste rock can be thrown away in advance.

• Reduce the subsequent grinding and flotation processing capacity and save energy consumption.

• Improve the grade and optimize the sorting effect.

Grinding and Classification System

• Stage grinding process

  • One stage ball mill and spiral classifier closed circuit (grinding to -0.3mm)

  • Second stage ball milling and cyclone group closed circuit (grinding to -0.074mm accounted for 80%)

• Precise control of grinding fineness to realize fluorite monomer dissociation

• Adoption of wear-resistant materials to reduce the consumption of grinding media

Flotation separation system

• Fluorite-barite separation

  • Mixed flotation (using oleic acid trap)

  • Separation flotation (pH=8-9, water glass inhibits barite)

• Fluorspar-quartz separation

  • Use of combined inhibitors (water glass + metal ions)

  • Selective fluorite capture using fatty acid-based traps

• Treatment of sulfide-bearing ores

  • Priority flotation of sulfide ores (using yellow drug type of trapping agent)

  • Re-election of fluorite (addition of sulfide ore inhibitors)

Concentrate dewatering system

• High-efficiency thickener concentration (bottom stream concentration ≥65%)

• Plate and frame filter press dewatering (cake moisture ≤10%)

• Recycling of return water, saving water resources

Key Equipment Configuration

Pharmacy system optimization

Capture agent system

• Oleic acid (fluorite main capture agent)

• Oxidized paraffin soap (auxiliary recovery agent)

• Yellow medicine (sulfide ore trapping agent)

Adjusting agent system

• pH adjuster: Na₂CO₃ (maintain pH=8-9)

• Inhibitors:

  • Water glass (inhibits quartz)

  • Dextrin (inhibits calcite)

  • Sodium sulfide (inhibits sulfide ores)

Technical Advantages

Precise sorting technology

• Composite inhibitor formula, quartz inhibition efficiency increased by 30

• Gradient flotation process, coarse and fine grains graded treatment

• Priority flotation technology for sulfide ore, improving sorting efficiency.

Energy saving and consumption reduction design

• High-pressure roller milling process saves 40% energy

• Utilization rate of return water ≥90

• Low-temperature flotation chemicals system reduces heating cost.

Stable production guarantee

• Wear-resistant equipment configuration (cyclone liner, etc.)

• DCS automatic control system to realize intelligent production

• Fault warning system to ensure continuous and stable operation

Typical application cases

A quartz-type fluorspar mine project in Zhejiang Province

• Grade of raw ore: CaF₂ 38%, SiO₂ 45

• Adopting "one coarse, three fine, two sweep" flotation process

• Concentrate grade: CaF₂ ≥ 97

• Recovery rate：≥90%

Hunan Barite Fluorite Ore Project

• Innovative use of barite-fluorite sequential priority flotation process

• BaSO₄content in concentrate≤1.5%

• Annual increase of economic benefits of 12 million yuan

• Technical indicators reach the leading level in the industry

Technical Services and Support

Experimental research service

• Ore process mineralogy research

• Laboratory selectivity test

• Continuous expansion test

• Provide authoritative test reports and technical solutions

Engineering Design Services

• Process design and optimization

• Equipment selection and configuration program

• Plant layout and construction design

• Automation control system design

Production support services

• Equipment installation and commissioning guidance

• Formulation of operating procedures and personnel training

• Production technology optimization and transformation

• Long-term technical consulting services

After-sales service guarantee

• Equipment maintenance service

• Spare parts supply

• Technology upgrading

• Remote technical support

We have rich fluorite beneficiation project experience, according to your ore characteristics and production needs, to provide the most economic and efficient fluorite beneficiation solutions. Welcome to contact our professional technical team for customized solutions and detailed quotations!