Preparation process of cryolite ceramic tile, and cryolite ceramic tile

The invention discloses a preparation process of a cryolite ceramic tile, and the cryolite ceramic tile. The preparation process comprises the following steps: sequentially subjecting flash raw materials to crushing, acid pickling, iron removal and screening so as to obtain flash particles; respectively carrying out ball milling on cover glaze raw materials and polishing glaze raw materials, and conducting sieving and iron removal to obtain a cover glaze and a polishing glaze; adding the flash particles and an auxiliary additive into the polishing glaze to obtain a flash glaze material; after the cover glaze is applied to the surface of a green body, conducting ink-jet printing, then applying the flash glaze material to the surface of the green body for the first time, and then applying dry particles to the surface of the green body for the second time; and conducting drying, sintering and polishing to obtain the cryolite ceramic tile. The cryolite ceramic tile prepared by the method is smoother in surface an