The process technology of manufacturing potassium dihydrogen phosphate by double decomposition with wet - process phosphoric acid purified by reaction medium circulation was introduced in this paper.

介绍了三聚氰胺反应媒循环法净化湿法磷酸复分解生产磷酸二氢钾的工艺技术，对由两种不同原料出发的工艺路线所得的产品进行了成本比较。

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The results showed that the decomposition rate increased as P2O5 concentration in phosphoric acid increased and the temperature moved up.

研究结果表明：反应速率常数随温度的升高和磷酸中P2O5质量分数的增加而增加。

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