用液上气相色谱法测定磷铵料浆平衡氨分压的研究

Study on Using Head Space Gas Chromatography Methodto the Qui - partial Pressures of Ammonia

本文用液上气相色谱法测定了磷铵饱和料浆在５０～８５℃的汽－液平衡氨分压，井得到氨分压与温度、中和度的经验关系式。实验结果表明磷铵倒浆的平衡氨分压受温度、中和度的影响显著，用液上色谱测定磷铵料浆的平衡氨分压是一种简单、快速的方法。

In 50~85℃, the pressures of ammonia of slurry saturated by ammoniumphosphate are measured by head space gas chromatogrphy. The correlating formula of the qui-partial pressure of ammonia corresponding to temperature and neutralization degree is obtained in (p/kPa) = - 33.4417 - 9272. 13K/T + 39. 0378X + 8. 29803X2 - 5.88863X3The research resolute show that the effects of the temperature, neutralization on thequi - partial pressure of ammonia are notable, also the measurement qui - partial pressure ofammonia is simple and quick.