| abstract |
The present invention provides a magnesium oxide reduction method and a reaction apparatus that enable recycling from magnesium hydroxide powder to magnesium hydride powder. Magnesium oxide powder and methane and / or hydrogen are supplied to a plasma reactor that generates thermal plasma of an inert gas, the magnesium oxide powder is plasma reduced to magnesium, and the plasma reduced gas magnesium is supplied. Condensation produces a magnesium powder or a mixture of magnesium hydride powders or a magnesium hydride powder. The reactor includes a plasma reaction furnace, a cylindrical torch electrode provided at the upper part of the plasma reaction furnace, a torch nozzle surrounding the torch electrode, a lower electrode provided at the lower part of the plasma reaction furnace, a torch electrode and a lower part A power supply for supplying power to the electrode, a first supply path for supplying methane through the torch electrode, and a second supply path for supplying magnesium oxide through the torch nozzle are provided. [Selection] Figure 1 |