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- Technology of bastnasite
- Effect of temperature in ion-exchange separation of rare-earth elements and recovery of EDTA from effluent solutions
- Hydrogen as a retaining ion for rare-earth separation by ion exchange with EDTA and DCTA
- Naphthenic acid solvent extraction of rare-earth sulphates
- Extraction of euxenite metal values by fusion with ammonium sulfate or ammonium bisulfate
- Investigation of oxidation systems for improving gold recovery from carbonaceous materials
- Extraction behavior of cerium-group lanthanides in a primary amine-chelating agent system
- Recovery of cerium and lanthanum by ozonation of lanthanide solutions
- Amino acids as retaining agents for separation of rare-earth elements on ion-exchange resin
- Electrolytic oxidation of carbonaceous ores for improving gold recovery