â¢ SIUM LATIFOLIUM (noun). The noun SIUM LATIFOLIUM has 1 sense: 1. large stout white-flowered perennial found wild in shallow fresh water; Europe. Familiarity information: SIUM LATIFOLIUM used as a noun is very rare. SIUM LATIFOLIUM (noun). The noun SIUM LATIFOLIUM has 1 sense: 1. large stout white-flowered perennial found wild in shallow fresh water; Europe. Familiarity information: SIUM LATIFOLIUM used as a noun is very rare.
Coal producers. The largest coal producing countries are not confined to one region - the top five hard coal producers are China, the USA, India, Australia and Indonesia. Much of global coal production is used in the country in which it was produced; only around 15% of hard coal production is destined for the international coal market.
The last and highest rank of coal is anthracite. Unlike the other types of coal, this high-energy coal is hard and black, burning with little smoke. As different types of coal are used in different applications, varying processes and process engineering are required.