| 摘要 |
The present invention relates to a method for recycling a waste phosphoric acid sludge, comprising: a blending step of blending a waste phosphoric acid sludge, a refractory composition and a granulated slug in a blender; a assembly step of putting and granulating phosphoric acid liquid in the blended product; a drying step of drying the granulated product at 500 to 700°C for 20 to 30 minutes; a cool step of cooling the dried product at 30 to 50°C; a selecting step of selecting particles capable of commercialization in the blended product; and a coating step of preventing consolidation that the selected particles are stuck to each other and hardened. |
