1. Extraction of Rare Earths from RE Concentrates - Decomposing, Leaching, Impurity Removing, Converting and Concentrating2. Extractants Used in Solvent Extraction Separation of Rare Earths - Extraction Mechanism, Properties and Features 3. Theory of Countercurrent Extraction4. Process Design of Solvent Extraction Separation of Rare Earths5. Equipment in Rare Earth Solvent Extraction Separation Process - Mixer-settler of Solvent Extraction6. Ion Exchange and Extraction Chromatography Separation of Rare Earth Elements7. Chemical Separation Method8. Treatment of Waste Solid and Waste Water