coal dust

(redirected from Powdered coal)
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coal dust

Occupational medicine Finely particulate carbonaceous dust, often mixed with silicates; CD is a known lung irritant intimately linked to coal workers' pneumoconiosis–black lung disease. See Coal dust macule, Coal workers' pneumoconiosis.

coal dust

causes black discoloration in lungs and bronchial lymph nodes in animals living in urban areas where coal is used for energy. Called anthracosis.
References in periodicals archive ?
These foams are produced from powdered coal by the controlled heating of the powder in a mold under pressure and a non-oxidizing atmosphere.
The technology is used to produce petroleum fuels such as gasoline and kerosene from powdered coal by applying heat and pressure.
Diesel experimented with many fuel types, including powdered coal, but an engine explosion helped convince him that liquid fuels might be a bit safer.
LOS ANGELES - A worker was trapped for more than two hours early Sunday inside a bulldozer that plunged 50 feet into a massive silo filled with soft powdered coal, firefighters said.
This is what happens to the powdered coal in seacoal in your mold.
At the same time, fertilizer production equipments and technological level have been improved, coal-water slurry gasification technology, powdered coal pressure gasification technology, large sulfur-based compound fertilizer technology and beneficiation technology of mid-low grade phosphorite started to be used widely and have achieved good benefit.