2 results about "Pidgeon process" patented technology

The invention relates to the field of preparation of high-purity magnesium, in particular to an integrated system and method for continuous purification and condensation of magnesium steam based on a Pidgeon process. Comprising a reduction unit, a condensation unit and a vacuum unit, a gas collection tank is arranged between the reduction unit and the condensation unit, a trap is arranged in the gas collection tank, and the trap comprises a trapping plate; the integration method comprises the following steps: step 1, preparing at least two reduction tanks, and keeping at least one reduction tank to generate high-temperature magnesium steam; 2, the temperature of the high-temperature magnesium steam is kept at 800-1000 DEG C, the vacuum degree is kept at 10-100 Pa, solids in the high-temperature magnesium steam are removed, and stable magnesium steam is obtained; and 3, condensing the stable magnesium steam to obtain refined magnesium. According to the integrated system and method for continuous purification and condensation of the magnesium steam based on the Pidgeon process, the problems that continuous production cannot be achieved through an existing Pidgeon process, and the purity of obtained magnesium is low are solved.

The application discloses an electric heating zero-emission magnesium reduction device and a process thereof, and the reduction device comprises a reduction tank, a condensation tank is sealingly connected to the upper end of the reduction tank through a flange, a crystallizer is arranged in the condensation tank, a vacuumizing device is further connected to the condensation tank through a pipeline, a plurality of inner electric heaters are inserted into the reduction tank from the bottom, and an outer electric heater is further wrapped outside the reduction tank; the gas heating in the traditional Pidgeon process is replaced by electric heating, so that the very serious pollution emission is changed into zero emission; and the various high-temperature corrosion of the traditional reduction tank under the gas flame barbecue is changed into basically zero corrosion, the service life of the reduction tank is greatly prolonged, and a large amount of steel is saved; the temperature control of the traditional Pidgeon process is difficult, leading to poor quality of the reduced magnesium, and the electric heating can realize accurate control of the temperature and improve the quality of the reduced magnesium.