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Hydrofluoric and sulphuric acid leaching of tantalite.
- Publication Year :
- 1989
-
Abstract
- Sulphuric acid increases the extraction of tantalum from tantalite concentrates when using hydrofluoric acid. The maximum extraction of Ta from tantalite using HF was about 50%, but adding 35% H2SO4 increased extraction to 95% at 60 degrees C. When leaching tantalite with a mixture of HF/H2SO4, higher temperatures and H2SO4 concentrations are needed for good extractions. Lowering either reduces extraction dramatically.<br />Sulphuric acid increases the extraction of tantalum from tantalite concentrates when using hydrofluoric acid. The maximum extraction of Ta from tantalite using HF was about 50%, but adding 35% H2SO4 increased extraction to 95% at 60 degrees C. When leaching tantalite with a mixture of HF/H2SO4, higher temperatures and H2SO4 concentrations are needed for good extractions. Lowering either reduces extraction dramatically.
Details
- Database :
- OAIster
- Notes :
- und
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1309210547
- Document Type :
- Electronic Resource