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Learn All About Anthracite

Anthracite

A versatile form of carbon ore.

What is Anthracite?

Anthracite, considered one of the most robust and efficient carbon-based materials, is gaining attention for its diverse applications, particularly in green energy, sustainable steelmaking, and water treatment. Found only in Pennsylvania in the United States, its unique properties make it an essential material in industries focused on sustainability and efficiency.

In the United States, anthracite sometimes is extracted underground but more commonly through modern surface mining and the remining and reclamation of previously mined areas to extract the remaining anthracite. The latter methods mitigate the legacy of acid mine discharge, open shafts and slopes, surface subsidence, mine fires, and scarring of the surface that resulted from historical mining practices. Innovative mining of remaining anthracite eliminates underground channels, restores the surface to natural conditions, and promotes the natural filtration of surface water.

Fun Facts

  • Anthracite can be used to heat pizza ovens.

Where to Find Anthracite

Uses for Anthracite

EAF Steelmaking In Electric Arc Furnace (EAF) steelmaking, anthracite is used as a carbon additive to control the carbon content of the steel. Additionally, anthracite is used as a foaming agent in EAF operations to help stabilize the electric arc, improving the efficiency of the furnace and reducing energy consumption. Fed primarily by recycled scrap, the EAF process yields more-sustainable “green steel,” and thanks to anthracite a full 70 percent of domestic steelmaking now uses this process.
Wastewater Treatment Anthracite is one of the most efficient ways to treat water. In water filtration, it is used as a filter medium, effectively removing contaminants and particulates due to its high adsorption capacity. Its low impurities make it ideal for producing cleaner water in both municipal and industrial settings.
Environmental Cleanup Anthracite is employed in environmental cleanup projects to treat contaminated soils and water bodies, helping to mitigate pollution and restore ecosystems.
Batteries Anthracite can be converted into graphite through a high-temperature process that transforms the carbon into a crystalline form. The resulting graphite is of high purity, making it suitable for use in advanced applications, such as lithium-ion batteries and fuel cells, which are essential components of the green energy ecosystem.
Glassmaking Anthracite is used as a reducing agent to help control color in the glass manufacturing process.
Sugar Production One step in the processing of sugar beets involves running the crystals through an anthracite-driven lime kiln.

Related Resources

Department of Energy: Carbon Ore, Rare Earth, and Critical Minerals (CORE-CM) Initiative

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