Leaching process of rare earths from weathered crust elution-deposited rare earth ore

Ab s t r a c t ： I n o r d e r t o s t r e n g t h e n t h e l e a c h i n g p r o c e d u r e ， t h e c h e mi c a l p r o c e s s e s o f l e a c h i n g r a r e e a r t h s( RE )f r o m t h e we a t h e r e d c r u s t e l u t i on — d e pos i t e d r a r e e a r t h o r e we r e i n ve s t i ga t e d f lo w t he vi e wpoi n t s o f k..