期刊
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
卷 317, 期 2, 页码 947-957出版社
SPRINGER
DOI: 10.1007/s10967-018-5939-5
关键词
Solubility; Inorganic salt; Supercritical water; Spent extraction solvent
资金
- National Natural Science Foundation of china [21507143]
- Strategic Priority Research Program'' of the Chinese Academy of Sciences [XDA02050000]
In order to reduce the deposition of inorganic salt in continuous reactor during the treatment of radioactive spent extraction solvent by supercritical water oxidation, the solubilities of five kinds of radioactive inorganic salts were investigated at temperatures from 390 to 550 A degrees C and pressures from 20 to 25 MPa. The solubilities of inorganic salts were correlated via a semi-empirical approach based on the phase equilibrium between the salt and supercritical water. In addition, parallel hydrolysis of the salts was found as it could be observed from decrease in pH and deviations of anion and cation concentration in the liquid effluent.
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