CaF2

Fluorspar

Refining & Grade Specs

Fluorspar Refining Methods and Grade Specifications

The transformation of Fluorspar concentrate into refined products suitable for industrial use requires specialized metallurgical and chemical processes. Fluorspar is refined into 4 primary commercial forms, each serving specific end-use sectors.

Price

350-700

$/tonne (acid grade)

Benchmark

Industrial Minerals/Fastmarkets

Ore Grade

30-80% CaF2

Product Forms

4

Commercial grades

Refining Processes

The primary refining and processing pathways for Fluorspar include:

  1. Dense media separation
  2. Flotation
  3. Acid-grade beneficiation

Product Forms and Grade Specifications

Refined Fluorspar is available in the following commercial forms, each with specific purity requirements:

Product Form Purity / Grade Primary Application
Acid-grade fluorspar >97% CaF2 Hydrofluoric acid production (primary feedstock)
Metallurgical-grade fluorspar 60-96% CaF2 Steel and aluminum flux
Ceramic-grade fluorspar 85-96% CaF2 Glass, enamel, and ceramic manufacturing
Hydrofluoric acid (HF) Various Petroleum alkylation, fluorochemical manufacturing, semiconductor etching

Quality Standards and Benchmarks

International standards for Fluorspar products are established by organizations such as ASTM International and various national standards bodies. Pricing is referenced against Industrial Minerals/Fastmarkets assessments. These standards define minimum purity levels, acceptable impurity limits, and testing methodologies that facilitate international trade.

Refining Capacity and Geography

Global refining capacity for Fluorspar is concentrated in a limited number of countries. China controls approximately 65% of primary production and plays a significant role in downstream refining. Efforts to diversify refining capacity are a key priority for governments seeking to reduce supply chain dependencies, particularly in the steelmaking flux sector.

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