Nickel base filter material-based gas phase magnesium purification method and device
A filter material and nickel-based technology, which is applied in the field of gas-phase magnesium purification based on nickel-based filter material, can solve the problems that the vacuum distillation method cannot meet the requirements of large-scale industrial production, the efficiency of magnesium purification is low, and the yield of high-purity magnesium is low. Reduced nucleation energy barrier, long service life, and cost reduction effects
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Embodiment 1
[0083] Such as figure 2 Shown, a kind of device that comprises the gas phase magnesium purification of nickel base filter material, comprises electric furnace body 1, crucible 2, heating mechanism 3, thermocouple 4 and vacuum mechanism 5;
[0084] The crucible 2 includes a reaction zone 21, an impurity condensation zone 22 and a crystallization zone 23 arranged in sequence,
[0085] The reaction zone 21 is provided with a hopper 211,
[0086] The impurity condensation area 22 is provided with a filter assembly 221,
[0087] Described filter assembly 221 is provided with filter material, and described filter material is nickel foam, and the aperture of nickel foam is 40ppi, and the purity of nickel is more than 99.5%;
[0088] The crystallization zone 23 is provided with a crystallizer 231;
[0089] The heating mechanism 3 includes a first heating assembly 31, a second heating assembly 32 and a third heating assembly 33; the first heating assembly 31 heats the reaction zone...
Embodiment 2
[0096] A kind of device that comprises the gas-phase magnesium purification of nickel base filter material, and embodiment 1 difference is that described filter assembly 221 is arranged between No. 7 and No. 8 high-purity graphite pipe fittings.
Embodiment 3
[0098] A kind of device that comprises the gas-phase magnesium purification of nickel base filter material, and embodiment 1 difference is that the pore diameter of described nickel foam is 75ppi; Described crucible is integrally formed.
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