Products Description
A method for preparing high-purity magnesium powder, in which the magnesium block is heated at 1100~1300 °C, so that it is sublimated in an inert gas environment with continuous circulation, and then cooled to room temperature after holding for a period of time, and the high-purity magnesium powder is obtained at the collection device in the condensation zone. By controlling the temperature and inert gas flow rate, the powder particle size can be effectively controlled and the yield can be improved. Compared with the traditional powder preparation method, it is simple and easy, the cycle is short, the cost is low, the powder particle size is small and the purity is high, which can realise the preparation of high-purity magnesium powder in large quantities with low cost and short cycle.
Products parameters
| Element | Percentage by Weight |
| Magnesium (Mg) | 99.9% min |
| Aluminum (Al) | 0.002% max |
| Calcium (Ca) | 0.005% max |
| Iron (Fe) | 0.003% max |
| Manganese (Mn) | 0.002% max |
| Nickel (Ni) | 0.001% max |
| Silicon (Si) | 0.005% max |
| Zinc (Zn) | 0.002% max |
| Copper (Cu) | 0.001% max |
| Lead (Pb) | 0.001% max |
| Other Impurities | 0.003% max |
Products cooperation picture
1.Ultrafine pure magnesium powder and Mg-Ti powder were prepared by direct current arc plasma method. X-ray diffraction (XRD), transmission electron microscopy (TEM), pressure-composition-temperature (PCT) method and TG/DTA technology were used to study the phase composition, microstructure and hydrogen absorption and release properties of powders before and after hydrogen absorption and release. The results show that most of the ultrafine Mg and Mg-Ti particles are hexagonal in shape, and the particle size is in the range of 50-700 nm. According to the Van 't Hoff equation, the hydrogen absorption platform pressure obtained from the PCT curve is about -67 kJ/mol H2, which is significantly higher than that of pure magnesium powder, -78.6 kJ/mol H2. TG/DTA analysis shows that the initial temperature of hydrogen release of Mg-Ti powder after hydrogenation is 386°C, which is lower than that of hydrogenated pure magnesium powder (423°C). The Mg-Ti ultrafine powder obtained by adding Ti directly to Mg by arc evaporation method can significantly improve the thermodynamic properties of magnesium hydrogen storage.
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