物理化学学报 >> 2001, Vol. 17 >> Issue (01): 91-94.doi: 10.3866/PKU.WHXB20010120

研究简报 上一篇    

Pitzer混合参数对HCl-NaCl-H2O体系溶解度预测的影响

李亚红;高世扬;宋彭生;夏树屏   

  1. 西北大学化学系,西安 710069;中国科学院青海盐湖研究所,西宁 810008
  • 收稿日期:2000-04-11 修回日期:2000-08-15 发布日期:2001-01-15
  • 通讯作者: 李亚红 E-mail:yahong.li@chem.ox.ac.uk

Effects of Pitzer Mixing Parameters on the Solubility Prediction of the Phase System HCl-NaCl-H2O

Li Ya-Hong;Gao Shi-Yang;Song Peng-Sheng;Xia Shu-Ping   

  1. Department of Chemistry, Northwest University, Xi′an 710069;Qinhai Institute of Salt Lake, Chinese Academy of Science, Xining 810008
  • Received:2000-04-11 Revised:2000-08-15 Published:2001-01-15
  • Contact: Li Ya-Hong E-mail:yahong.li@chem.ox.ac.uk

关键词: Pitzer混合参数, 活度系数, 溶解度预测

Abstract: This paper reports the results of solubility calculation of the phase system HClNaClH2O at 25 ℃ when θHNa (interactions of two species with the same charge) and ΨHNaCl (interactions of three species) were changed by +10% and -10%. The results indicated that the effects of the two kinds of interactions on the calculated solubility of the system were regular. The calculated solubilities of the system did not vary while the two interactions were increased and decreased simultaneously. The solubility data of the system changed greatly as one interaction was increased and the other decreased. This study is significant for the chemical technology of salting out salts from the watersalt system.

Key words: Pitzer mixing parameters, Activity coefficient, Solubility prediction