How to Extract of Lanthanides from Monazite Sand?

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.