Method for producing aluminum by means of metallothermic recovery of aluminum trichloride with magnesium and a device for its realization

Abstract

Here, a method has been offered of aluminum reception by means of metallothermal magnesium recovery of aluminum trichloride in the flow of inactive gas at the temperature of 900-1150° C. and the total pressure of 0.01-5 atm., the mass correlation of aluminii chloride and magnesium in the parent mix being 3.69:1.00. The process is realized in a cylinder-shaped reactor with thin-walled attachments (6) made of ceramics and located inside the reactor. The latter is supplied with a cone-like bottom part. A cauldron-evaporator of magnesium into the flow of inactive gas is mounted in front of the reactor, while behind it there is a unit for separating liquid magnesium from the residual mix of magnesium and aluminii chloride, all the components of the device having been lined inside with fireproof materials. The technical result is growth of efficiency at the expense of guaranteed uninterrupted process of recovery and the best of ecological specifications.

1 . A method of producing aluminum metallothermic recovery magnesium chloride, characterized in that the recovery performed in a flow of inert gas at 900-1150 C, total pressure of from 0.01 to 5 at and the mass ratio of chloride aluminum and magnesium in the mixture as 3.69 to 1.00. 
     
     
         2 . A device for carrying out the method includes a cylindrical reactor located inside the thin-walled ceramic nozzles and the bottom of the cone, characterized in that the front reactors the boiler and evaporation of magnesium in inert gas flow, and after it - the device separation of liquid magnesium residual mixture it with aluminum chloride, and all components of the device lined inside with refractory materials.