Method for removing silicon from ammonium rhenate

The invention relates to the technical field of ammonium rhenate purification, and particularly discloses a method for removing silicon from ammonium rhenate. The method comprises the following steps: S1, electrifying a to-be-treated solution containing ammonium rhenate to obtain a primary rhenic acid solution in an area between a positive electrode and an anion exchange membrane; s2, heating the primary rhenic acid solution to 40-70 DEG C, adding ammonia water or ammonia gas, stirring at a high speed, quickly cooling to 0-4 DEG C, and passing through a filter membrane to obtain an intermediate rhenic acid solution; and S3, evaporating and concentrating the intermediate rhenic acid solution, then adding ammonia water or ammonia gas to obtain a purified ammonium rhenate solution, and performing freezing crystallization, filtering and drying on the purified ammonium rhenate solution to obtain the high-purity ammonium rhenate. The ammonium rhenate obtained by the method has the advantages that the purity is high