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Abstract

The present disclosure relates to the technical field of magnesium metallurgy, and in particular to a device and method for magnesium smelting by vacuum carbothermal reduction of calcined dolomite. The device includes a reaction chamber, a condensation chamber, a first temperature regulation module and an air pressure regulation module, and the reaction chamber is communicated with the condensation chamber via a gas-guide tube. In the present disclosure, different condensation zones are utilized to sequentially condense gaseous products based on dew points, effectively preventing impurities from entering the condensation process of magnesium. Additionally, based on dynamic equilibrium in the condensation process of the gaseous products within the condensation chamber, efficient condensation and collection of magnesium in the condensation zone at middle section is ensured while preventing reverse reaction between magnesium and CO in the condensation zone of magnesium, enhancing the condensation-based purification effect.

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First Claim