Method for the production of mixed ammonium-rare earth oxalates and their application to the production of rare earth oxides and rare earth oxides so produced.

摘要

Process for the manufacture of ammonium rare-earth oxalate. More particularly, a process for the manufacture of an ammonium rare-earth oxalate by conversion of a neutral oxalate in the presence of oxalate and ammonium ions. The product obtained can be converted into rare-earth oxide, for example by calcining.