A coal preparation plant (CPP; also known as a coal handling and preparation plant (CHPP), coal handling plant, prep plant, tipple or wash plant) is a facility that washes coal of soil and rock, crushes it into graded sized chunks (sorting), stockpiles grades preparing it for transport to market, and more often than not, also loads coal into rail cars, barges, or ships.
Lignite: Lignite, generally yellow to dark brown or rarely black coal that formed from peat at shallow depths and temperatures lower than 100 °C (212 °F). It is the first product of coalification and is intermediate between peat and subbituminous coal according to the coal classification used in the United
14.10.2013 11:15 Coal Ash Recycling: A Rare Opportunity . Strategic materials such as rare earths are increasingly vital. With supplies tight, could new technologies open up fresh supplies by recycling the abundant and potentially hazardous wastes produced by the combustion of coal?