High-carbon coal
High-carbon coal, a term that commonly refers to coal ranks with a high proportion of fixed carbon such as anthracite and certain grades of bituminous coal, remains an important component…
High-volatile bituminous coal
High-volatile bituminous coal occupies an important place among the ranks of coal used around the world. This article summarizes its geological characteristics, where it occurs and is mined, economic and…
Bituminous coal
Bituminous coal is one of the most important and widely used ranks of coal worldwide. It occupies an intermediate position in the coalification scale between sub-bituminous coal and anthracite, combining…
Soft coking coal
Soft coking coal occupies a specific and important niche within the family of bituminous coals. It combines properties that make it partially suitable for metallurgical processes, particularly when blended with…
