摘要
从硝酸分解磷灰石的酸解液中分离硝酸钙以降低钙磷比(CaO/P_2O_5)提高肥料的水溶率是一个重要课题。本文依据相平衡原理,探讨几种分离硝酸钙结晶的新方法。
It is an important topic to increase the hybro-solubility of nitrophosphate and becrease the ratio of calcium to phosphorus(CaO/P_2O_5) by extracting calcium nitrate from the liquor in the nitric acid becomposition of phosphorus ore. Based on the principle of phase equilibrium, there are several new ways to do so in this paper
关键词
硝酸磷肥
水溶率
硝酸钙
分离
nitrophosphate
calcium nitrate
extract
hydrosolubility
