Catalyzer used in pidgeon's magnesium reduction process and the magnesium reduction process adopting the catalyzer
A technology of catalyst and reduction method, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc. It can solve the problems of long magnesium reduction time and low reduction efficiency, and achieve the improvement of reduction rate and reduction reaction speed The effect of increasing and increasing the activity
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Embodiment 1
[0015] Mix calcined white 100kg, ferrosilicon 19kg, catalyst 2.0kg (the molar ratio of magnesium fluoride, molybdenum oxide and calcium chloride is 1:0.1:0.5, mix uniformly, heat and melt in a graphite crucible, control the temperature at 850-950 ℃, pouring, cooling and crushing (less than 200 mesh) mixed, placed in a reduction tank for high-temperature vacuum reduction, the reduction time is 8 hours, and the reduction rate of magnesium in calcined white is 89%.
Embodiment 2
[0017] Calcined white 100kg, ferrosilicon 20kg, catalyst 3.5kg (the molar ratio of magnesium fluoride, molybdenum oxide, calcium chloride is 1: 0.3: 1.0, after uniform mixing, heat and melt in graphite crucible, control temperature at 900 ℃, pouring, cooling and crushing (less than 200 meshes) are mixed and pressed into agglomerates, placed in a reduction tank for high-temperature vacuum reduction, the reduction time is 7 hours, and the reduction rate of magnesium in calcined white is 90%.
Embodiment 3
[0019] Calcined white 100kg, ferrosilicon 21kg, catalyst 5.0kg (the molar ratio of magnesium fluoride, molybdenum oxide, calcium chloride is 1: 0.5: 1.5, after mixing uniformly, heat and melt in graphite crucible, control temperature at 950 ℃, pouring, cooling and crushing (less than 200 meshes) are mixed and pressed into agglomerates, placed in a reduction tank for high-temperature vacuum reduction, the reduction time is 6 hours, and the reduction rate of magnesium in calcined white is 91%.
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