MOLTEN IRON-ASSISTED METHOD FOR PRODUCING ALUMINUM NITRIDE AND DEVICE THEREOF

摘要

A molten iron-assisted method for producing aluminum nitride (AlN) and a device thereof are disclosed. Pure aluminum is introduced into a vacuumed molten iron bath continuously for producing a molten iron bath having the aluminum, then nitrogen is introduced into the molten iron bath having the aluminum. Production of AIN is controlled by having the concentration of aluminum in the molten iron bath having the aluminum controlled. At the time AIN is formed continuously in the molten iron bath having the aluminum, AIN floats to the surface of the molten iron bath having the aluminum. Ar and N2 may be blown and dust is removed by static electrons thereafter, such that pure aluminum nitride powder can be collected. Finally, the used gas is recycled and reused.

主权项

1. A molten iron-assisted method for producing aluminum nitride, comprising:
introducing aluminum into a molten iron bath in vacuum continuously; introducing nitrogen for producing aluminum nitride in the molten iron bath having the aluminum with the aluminum nitride floating on the surface of the molten iron bath having the aluminum; blowing gas and removing dust by static electrons for collecting aluminum nitride powder; and recycling the gas.