METHOD FOR PRODUCING CALCIUM PHOSPHATE BY USING HYDROCHLORIC ACID AND PHOSPHATE ORE

摘要

Provided is a method for producing calcium phosphate by using hydrochloric acid and phosphate ore, comprising: A. enabling the hydrochloric acid and phosphate ore to undergo a reaction, and performing filtering to obtain a filter residue and a filtrate; B. mixing the filtrate with phosphoric acid to obtain finely-adjusted slurry; C. dechlorinating, deflurinating, and dehydrating by heating the finely-adjusted slurry to obtain calcium phosphate. The method can use a medium- or low-grade phosphate ore as a raw material, the steps are simple, and the costs are low; and different kinds of calcium phosphate can be prepared by adjusting the amount of phosphoric acid, and the obtained product has excellent quality.