Chromatography techniques yield rare earth elements from coal ash

New chromatography separation techniques could extract rare earth elements from waste coal ash and help introduce the US to a market worth $4bn.
Linda Wang, Purdue University’s Maxine Spencer Nichols Professor of Chemical EngineeringRare earth elements (REE) consist largely of Lanthanides (Lns) – a series of 15 metallic elements – and the value of products requiring them is estimated at over $4 trillion per year.
“REEs have many important applications in things such as pe