Product

Anthracite is a kind of hard, dense and high-gloss coal. Among all kinds of coal, although anthracite has lower calorific value, it has the highest carbon content (> 87%) and the least impurity content. Anthracite is the highest grade coal.

Bituminous coal is the product of further metamorphism of coal, with a moderate degree of coalification, with a carbon content of 77% – 87%. It emits thick smoke during combustion, so it is called bituminous coal. It is an important boiler fuel and coking raw material, and can also be used for dry distillation of petroleum and production of gas.

Coking Coal when subjected to high temperature carbonisation i.e. heating in the absence of air to a temperature above 600 degree Celsius,forms a solid porous residue called coke.

Coke is fed into a blast furnace along with iron ore and limestone to produce steel in steel plants. Coking coal is desired to be of low ash percentage.

Coking Coal is mainly used in steel making and metallurgical industries and in hard coke manufacturing.

Non Coking Coal does not have coking properties and is used in thermal power plants to generate electricity so it is also known as steam coal or thermal coal.

It is also used for other heating purposes like: cement, fertilizer, glass, ceramic, paper, chemical and brick manufacturing etc.

Dependings on the type and amounts of carbon the coal contains and on the amount of heat energy the coal can produce – Coal is also classified into four ranks: anthracite, bituminous, subbituminous, and lignite.