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

作　　者：李沁[1] 卫永祉[1] 陈晓东 钟本和[1] 

机构地区：[1]四川联合大学化工学院,成都610065

出　　处：《四川联合大学学报（工程科学版）》1999年第2期60-64,共5页

摘　　要：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.

关 键 词：磷铵料浆 氨分压 液上气相色谱 测定 气液平衡 

分 类 号：TQ442.14[化学工程—化学肥料工业] O657.71[理学—分析化学]