Sustainably Mining Rare Earth Elements From Fertilizer Byproduct

2021-11-06 21:06:57 Penn State engineers received a National Science Foundation grant to recover rare earth elements from phosphogypsum, a fertilizer byproduct stored indefinitely in open dumps and pumped into designated lakes, shown here. Despite their name, rare earth elements are not actually that rare. The 17 metallic elements are ubiquitous in nature and are becoming […]