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NaCl-H2O体系中WO3溶解度超临界现象实验探讨
超临界现象 临界区域 溶解度 钨矿床
2009/5/18
以适量Na2WO4·2H2O, HCl, NaCl和H2O为原料, 从过饱和的角度对4.0% NaCl水溶液中WO3溶解度的超临界现象进行实验探讨. 压力恒定在34 MPa, 接近临界压力31.4 MPa, 温度变化于250~550℃之间, 在快速淬火高压釜中进行实验. 结果表明在临界区域内, WO3溶解度具有超临界现象, 溶解度对温度、密度的变化反应敏感. 本实验温、压条件与许多钨矿床成矿流体的...
Phase relations in the system MgO-NaCl-H2O: The dehydroxylation of brucite in the presence of NaCl-H2O fluids
Phase relations MgO-NaCl-H2O dehydroxylation NaCl-H2O fluids
2012/3/31
The dehydroxylation of brucite was determined in the presence of NaCl-H2O fluids containing 0, 2, 6, 11, 14, 18, 30, and 38 mol% NaCl (0.0, 5.5, 17.0, 28.8, 34.5, 41.7,58.2, and 66.6 wt% NaCl) to ;250...