Beneficiation of Low-grade Tungsten Ores
| 1. | Title of Product/Design/Equipment | Beneficiation of Low-grade Tungsten Ores |  |
| 2. | IPR Status Patent/Abroad IPR Details | - | |
| 3. | Application/Uses | ||
| 4. | Salient Technical Features including Competing Features | The technology is based on the novel integrated process flow-sheet involving beneficiation of low- and lean-grade ores and hydrometallurgical extraction of tungsten from wolframite concentrate. The concentration of the lean ore is achieved basically by gravity and magnetic separation techniques followed by hydrometallurgical extraction of tungsten from wolframite concentrate to obtain ammonium para-tungstate | |
| 5. | Level/Scale of Development | Beneficiation: 0.5 tph raw ore Extraction: 5 kg concentrate, scale-up possible | |
| 6. | Environmental Considerations | The process is environment friendly. Tailings and effluents disposal systems are to be installed | |
| 7. | Status of Commercialization | Ready for commercialization | |
| 8. | Major Raw Materials to be Utilized | Low-grade wolframite ore, Reagents for extraction of tungsten. | |
| 9. | Major Plant Equipment and Machinery Required | Units for crushing, grinding, classification, gravity and magnetic separation, dewatering, leaching and solvent extraction | |
| 10. | Techno-Economics | Available on demand | |
| 11. | Technology Package | Process knowhow with technological process flow-sheet, Details of equipment & (c) Quality assurance methods. Assistance in setting up the plant on separate terms | |
Chemical requirement cost is about Rs.30.3 against product cost of about Rs.1.25.3 per ton of iron oxide production.
