Rare earth fluorosulphides or oxyfluorosulphides, methods...
Rare earth metal compounds, methods of making, and methods...
Rare earth metal oxides having perovskite structure for...
Rare earth or gallium additive composition, methods for...
Rare earth oxide process
Rare earth sulphide composition with improved chemical...
Rare earth trifluorides having novel morphological...
Rare earth-based dispersible compound, colloid suspension...
Rare earth/iron fluoride and methods for making and using same
Rare-earth and alkali sulphide, method for preparing same...
Rare-earth oxide with new morphologic characteristics and...
Rare-earth oxysulfide, process for preparing the same and...
Recovering phosphoric acid
Recovery of alumina from bauxite
Recovery of alumina trihydrate in the bayer process
Recovery of alumina values from siliceous minerals
Recovery of aluminum chloride from spent aluminum chloride...
Recovery of aluminum fluoride
Recovery of calcium sulfate solids from a sulfuric acid slurry
Recovery of high purity products from magnesite and calcite...