A study of the sulfuric acid leaching of rare-earth elements, phosphorus, and alkali metals from phosphodihydrate

The leaching of rare-earth elements, phosphorus, and alkali metals from phosphodihydrate, obtained in processing of the Khibiny apatite concentrate into mineral fertilizers, with sulfate solutions with a sulfuric acid concentration c(H(2)SO(4)) = 0.5-4 wt % was studied.