Anthracite iron and nail factory), had determined how to burn anthracite in iron working processing furnaces during the War of 1812, but its use in smelting operations was hit or miss, dependent upon the material packing geometries of any particular charging load in a cold blast furnace. The earlier development of coking of bituminous coal, as well anthracite coke enabled the smelting of iron using local coal sources with cold blast air in blast furnaces after the latter 1830s allowed the production of the vast quantities of iron that built the fundamental infrastructure of the early North American Industrial Revolution — which
Anthracite power-generation. The rarer higher grades of anthracite are purer – i.e., they have a higher carbon content – and are used in steel-making and other segments of the metallurgical industries. Technical characteristics of the various grades of anthracite are as follows: Anthracite is divided by size mainly into applications that need lumps (typically larger than 10 mm) – various industrial processes where it replaces metallurgical coke, and domestic fuel – and those that need fines (less than 10 mm), such as sintering and pelletising. The common American classification by size is as follows: Lump, steamboat, egg and stove coals, the