Simple vanadium nitride production method
A production method and technology of vanadium nitride, applied in the direction of nitrogen-metal/silicon/boron binary compounds, etc., can solve the problems of low nitrogen content in products, low life of furnace lining, poor controllability, etc., and achieve wide source of raw materials, atmosphere The effect of convenient control and high productivity
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[0024] A simple and easy production method of vanadium nitride, the process steps are: 1. V 2 O 5 The powder and graphite powder are fully mixed on a dry mixer at a weight ratio of 4:1. ② Add a 4% polyvinyl alcohol aqueous solution to the above mixed powder at a weight ratio of 100:15, and mix in a wet mixer for 10 minutes. , ③ Press the wet mixed powder into balls, ④ Dry the mixed powder wet balls, ⑤ Load the dried mixed powder balls into the feeding truck, enter the furnace, and seal the furnace door in layers, ⑥ Evacuate to -0.02MPa, ⑦ Introduce nitrogen pressure to 0.04MPa, ⑧ heat to 800 ℃ and carry out pre-reduction at this temperature for about 5 hours, ⑨ then continue to heat up to 1350 ℃ for no less than 6 hours of deep reduction and carbonization, in the process of continuous charging Enter nitrogen with a purity of more than 99.99%, ⑩ heat up to 1600 °C for 6-10 hours of nitriding and sintering, the pressure in this process is controlled at 0.02Mpa, and the total ti...
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