| NaCl-NH_4Cl-H_2O水盐体系在高原条件下的相平衡研究 |
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| 引用本文： | 曹红翠,孙海霞,杨红梅,晁显玉. NaCl-NH_4Cl-H_2O水盐体系在高原条件下的相平衡研究[J]. 盐业与化工, 2014, 0(9): 25-27 |
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| 作者姓名： | 曹红翠 孙海霞 杨红梅 晁显玉 |
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| 作者单位： | 青海大学化工学院,西宁810016 |
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| 基金项目： | 教育部“春晖计划”（Z2012085） |
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| 摘 要： | 通过湿渣法测定了水中NH4Cl和NaCl的溶解度数据,同时研究了三元水盐体系NaCl-NH4Cl-H2O在25℃时的固液相平衡关系。采用Pitzer模型计算了该三元水盐体系相平衡溶解度,比较了计算值和试验值,结果基本吻合。并从定量的角度描述了θNaNH4和ψNaNH4Cl各以±10%变动时,对体系溶解度的影响。
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| 关 键 词： | 水盐体系 溶解度 Pitzer模型 混合参数 |
Study on Vapor- liquid Equilibrium for System NaCl - NH4 Cl - H2O under Plateau condition |
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| Affiliation: | CAO Hong - cui, SUN Hai - xia, YANG Hong - mei, HUANG Xian - yu (School of Chemical Engineering, Qinghai University, Xining 810016, China) |
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| Abstract: | The solubility of NH4 Cl and NaCl was tested by means of moist solid method.Meanwhile,the phase equilibrium of ternary water-salt system NaCl-NH4Cl-H2 O was investigated at 25 ℃.Pitzer-model method was utilized to calculate the solubility data of phase equilibrium of this ternary water-salt system and the results showed coincide between the calculated value and experimental value.Furthermore,the solubility prediction results of NaCl-NH4Cl-H2 O system are calculated at 25 ℃ and solubility variations of the system when θNaCland ΨNaNH4Clwere changed with ＋ 10% and-10%. |
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| Keywords: | water - salt system solubility Pitzer - model mixing parameter |
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