Method for cooperatively treating vortex furnace smoke dust and chain furnace smoke dust to enrich germanium and remove arsenic

The invention discloses a method for enriching germanium and removing arsenic by cooperatively treating smoke dust of a vortex furnace and smoke dust of a chain furnace. The invention discloses a method for cooperatively treating vortex furnace smoke dust and chain furnace smoke dust to enrich germanium and remove arsenic. The method comprises the following steps: (1) uniformly mixing the vortex furnace smoke dust and the chain furnace smoke dust according to a mass ratio of 1: (1-5) to obtain a germanium-containing material; (2) reducing and volatilizing the germanium-containing material at the temperature of 900-1200 DEG C in a protective atmosphere for 3-8 hours, and collecting dust to obtain germanium-arsenic smoke dust and volatile residues; and (3) oxidizing and volatilizing the germanium-arsenic smoke dust obtained by reducing, vulcanizing and volatilizing, and collecting dust to obtain a germanium enrichment and arsenic-containing smoke dust. According to the method, the chain-grate furnace smoke is u