Nickel Concentrate
Nickel concentrates may be leached with sulfuric acid or ammonia, or they may be dried and smelted in flash and bath processes, as is the case with copper. This is done in a rotating converter of the type used in copper production. The slag is drawn off, leaving a matte of 70 to 75 percent nickel. High Grade Nickel Concentrate is used for the recovery of metal values. Nickel is the fifth most abundant element on Earth. However, it is 100 times more concentrated below the Earth's crust than in it, according to Chemicool. In fact, nickel is believed to be the second most abundant element in the Earth's inner core, with iron being the first by a large margin.
Nickel concentrates may be leached with sulfuric acid or ammonia, or they may be dried and smelted in flash and bath processes, as is the case with copper. This is done in a rotating converter of the type used in copper production. The slag is drawn off, leaving a matte of 70 to 75 percent nickel. High Grade Nickel Concentrate is used for the recovery of metal values. Nickel is the fifth most abundant element on Earth. However, it is 100 times more concentrated below the Earth's crust than in it, according to Chemicool. In fact, nickel is believed to be the second most abundant element in the Earth's inner core, with iron being the first by a large margin.
Properties of Nickel Concentrate
| Molecular Weight | 58.69 |
|---|---|
| Appearance | Lustrous silvery metal |
| Boiling point | 2732 °C |
| Melting point | 1455 °C |
| Density | 8.902 g/cm3 |
| Electrical Resistivity | 69.3 nΩ·m (20 °C) |
| Electronegativity | 1.91 Paulings |
| Heat of fusion | 17.48 kJ·mol-1 |
| Heat of vaporization | 377.5 kJ·mol-1 |
| Poisson's ratio | 0.31 |
| Specific heat | 0.44 kJ/kg·K |
| Solubility in H2O | N/A |
| Thermal conductivity | 90.9 W·m-1·K-1 |
| Thermal expansion | 13.4 µm·m-1·K-1(25 °C) |
| Vickers hardness | 638 MPa |
| Young's modulus | 200 GPa |