Thermodynamic properties of aqueous solutions of mixed electrolytes: A new mixing rule

AIChE Journal ◽  
1993 ◽  
Vol 39 (4) ◽  
pp. 711-714 ◽  
Author(s):  
V. S. Patwardhan ◽  
Anil Kumar
Keyword(s):  
Thermodynamic Properties ◽  
Aqueous Solutions ◽  
Mixed Electrolytes ◽  
Mixing Rule

scholarly journals COMPARISON OF GAZKONDNAFTA AND HYSYS SOFTWARE SYSTEMS IN THE FIELD OF COMPUTER MODELING OF OIL AND GAS TECHNOLOGIES

2021 ◽  
pp. 4-22
Author(s):  
O.V. Kalashnikov ◽  
S.V. Budniak ◽  
Yu.V. Ivanov ◽  
Yu.M. Belyansky ◽  
N.O. Aptulina ◽  
...  
Keyword(s):  
Natural Gas ◽  
Thermodynamic Properties ◽  
Aqueous Solutions ◽  
Computer Modeling ◽  
Oil And Gas ◽  
Software Systems ◽  
Program System ◽  
Aspen Hysys ◽  
Treatment Processes ◽  
Liquid Phases

The experimental and calculated according to program systems GasCondOil, Aspen-HYSYS and PRO-II compositions of the gas — liquid phases (hydrocarbon and aqueous solutions) and their thermodynamic properties are compared, as well as the accuracy of technological calculations of field pipelines and natural gas and oil treatment processes. It is shown that some of the field technological processes, calculated by the program system GasCondOil, are not modeled on Aspen-HYSYS. Bibl. 16, Fig. 9, Tab. 15.

Research on Thermodynamic Properties of Bioleaching Solution in Lean Nickel-Cobalt Ore by Pitzer - Meissner Model

2015 ◽  
Vol 1092-1093 ◽  
pp. 1455-1459
Author(s):  
Chu Yue Hou ◽  
Gui Ying Zhou ◽  
Jian Kang Wen ◽  
Biao Wu
Keyword(s):  
Thermodynamic Properties ◽  
Activity Coefficient ◽  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Pitzer Model ◽  
Foreign Ions ◽  
Nickel Cobalt

In this paper, we jointly use the Pitzer model and the Meissner model to study thermodynamic laws of bioleaching solution in a lean nickel-cobalt ore in the Jilin Baishan, by using the Pitzer model to calculate activity coefficients of single electrolyte aqueous solutions and the Meissner model to calculate activity coefficients of components in the bioleaching solution. Also we studied the rules of activity coefficient of NiSO4 and CoSO4 in the solution. Results show that when separating and purifying foreign ions from bioleaching solution of the lean nickel-cobalt ore, the descending sequence of their ion concentration’s effect over the solution is Mg2+, Fe3+, Fe2+, Ni2+, Co2+ and Ca2+.

Thermodynamic properties of crystalline L-carnosine and its aqueous solutions

2020 ◽  
Vol 150 ◽  
pp. 106206
Author(s):  
Elena Yu. Tyunina ◽  
Igor N. Mezhevoi ◽  
Valeriya V. Dunaeva
Keyword(s):  
Thermodynamic Properties ◽  
Aqueous Solutions
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