Under the optimal process, the feed-grade dicalcium phosphate could be produced by neutralization of the leach liquor with calcium hydroxide solution, filtration and then dryness.

• 在最佳工艺条件下,水浸脱氟液经氢氧化钙中和及过滤、烘干得到了合格的饲料级磷酸氢钙产品。