coal processing

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Coal-preparation plant

coal processing

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June 24, 2026

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Coal-preparation plant — Coal-preparation plant Coal-preparation plant, West Virginia.

Coal processing, also known as coal preparation, is the method of converting run-of-mine (ROM) coal into marketable products. ROM coal, which comes directly from a mine, contains impurities like mineral matter, clay, and rock that are acquired during formation and mining. The goal of coal preparation is to remove these impurities to meet buyer specifications for various uses such as combustion, carbonization, liquefaction, or gasification.123

The process involves several steps:
* Liberation: Crushing the ROM coal to create more homogeneous particles of coal or impurities.4
* Separation: Classifying liberated particles based on differences in size and specific gravity using equipment like jigs, heavy-media baths, or flotation for fine coal.5
* Disposition: Handling the final products, including storage, processing, and disposal of waste materials.1

Modern coal preparation also focuses on removing sulfur to comply with air-pollution regulations.15

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coal mining
Coal preparation
As explained above, during the formation of coal and subsequent geologic activities, a coal seam may acquire mineral matter, veins of clay, bands of rock, and igneous intrusions. In addition, during the process of mining, a portion of the roof and floor material…
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As explained above, during the formation of coal and subsequent geologic activities, a coal seam may acquire mineral matter, veins of clay, bands of rock, and igneous intrusions. In addition, during the process of mining, a portion of the roof and floor material…
Read More

chemical industry
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…from the carbonization (heating) of coal, which produces coke, combustible gas, and a number of by-products, including benzene. Carbonization of coal to produce illuminating gas dates back in England to the very early years of the 19th century. The process is still employed in some countries, but more use is…
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…from the carbonization (heating) of coal, which produces coke, combustible gas, and a number of by-products, including benzene. Carbonization of coal to produce illuminating gas dates back in England to the very early years of the 19th century. The process is still employed in some countries, but more use is…
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iron processing
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…to its subsequent replacement by coal in the form of coke—a discovery that is usually credited to Abraham Darby in 1709. Because the higher strength of coke enabled it to support a bigger charge, much larger furnaces became possible, and weekly outputs of 5 to 10 tons of pig iron…
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…to its subsequent replacement by coal in the form of coke—a discovery that is usually credited to Abraham Darby in 1709. Because the higher strength of coke enabled it to support a bigger charge, much larger furnaces became possible, and weekly outputs of 5 to 10 tons of pig iron…
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nuclear reactor
Containment design principles
…are found at large modern coal- and oil-fired power stations as well.)
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…are found at large modern coal- and oil-fired power stations as well.)
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