Tantalum
Concentrate
We produce five grades of tantalum concentrate
Tantalum concentrate is one of the primary feed sources used by processors to produce tantalum capacitor powders and metallurgical products.
The concentrate is also used to produce pure tantalum pentoxide (Ta2O5) primarily utilized in the production of optical glass and lithium niobate. We produce five grades of tantalum concentrate at our Greenbushes plant in Western Australia. Currently the primary feedstock is ore mined at Greenbushes, while a small amount is sourced from other mines in Western Australia.
Typical Product Specifications
Tantalum Concentrate 30 Non Class 7 Specification
| Guaranteed | ||
|---|---|---|
| Ta2O5 | 30% | minimum |
| Ta2O5 + Nb2O5 | 35% | minimum |
| SnO2 | 20% | maximum |
| As | 0.25% | maximum |
| Sb | 0.2% | maximum |
| U3O8 + ThO2 | 0.1% | maximum |
| Particle Size | < 2 mm | |
Tantalum Concentrate 30 Class 7 Specification
| Guaranteed | ||
|---|---|---|
| Ta2O5 | 30% | minimum |
| Ta2O5 + Nb2O5 | 35% | minimum |
| SnO2 | 25% | maximum |
| As | 0.25% | maximum |
| Sb | 0.2% | maximum |
| U3O8 + ThO2 | 0.5% | maximum |
| Particle Size | < 2 mm | |
Tantalum Concentrate 20 Non Class 7 Specification
| Guaranteed | ||
|---|---|---|
| Ta2O5 | 20% | minimum |
| Ta2O5 + Nb2O5 | 22% | minimum |
| SnO2 | 20% | maximum |
| As | 0.25% | maximum |
| Sb | 0.2% | maximum |
| U3O8 + ThO2 | 0.1% | maximum |
| Particle Size | < 2 mm | |
Tantalum Concentrate 20 Class 7 Specification
| Guaranteed | ||
|---|---|---|
| Ta2O5 | 20% | minimum |
| Ta2O5 + Nb2O5 | 22% | minimum |
| SnO2 | 20% | maximum |
| As | 0.25% | maximum |
| Sb | 0.2% | maximum |
| U3O8 + ThO2 | 0.25% | maximum |
| Particle Size | < 2 mm | |
Tantalum Glass Specification
| Guaranteed | ||
|---|---|---|
| Ta2O5 | 20% | minimum |
| Ta2O5 + Nb2O5 | 22% | minimum |
| SnO2 | 6% | maximum |
| As | 0.02% | maximum |
| Sb | 0.2% | maximum |
| U3O8 + ThO2 | 1% | maximum |
| Particle Size | < 2 mm | |