Extraction of Lanthanides from Monazite sand
The method used for extraction of lanthanides from monazite sand consists of the steps which have been shown in flowsheet.
Flow sheet: Extraction of lanthanide from monazite sand
Individual lanthanides are separated by a suitable physical method. The anhydrous fluorides and chlorides are heated under argon atmosphere in presence of calcium at 1270 K to get the individual metal. The pure metal is obtained by heating the trifluorides of lanthanides in the presence of calcium and lithium.