High-temperature equilibria and critical phenomena in the Na2CO3-NaCl-H2O and Na2CO3-Na2WO4-H2O systems |
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Authors: | M A Urusova and V M Valyashko |
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Abstract: | Phase equilibria in the Na2CO3-NaCl-H2O and Na2CO3-Na2WO4-H2O ternary systems formed by type 1 salts (NaCl, Na2WO4) and a type 2 salt (Na2CO3) were experimentally studied at temperatures from 425 to 500°C and pressures from 30 to 160 MPa with the contents of type
1 salts from 10 to 30 wt %. Transition from supercritical homogeneous fluid equilibria of the Na2CO3-H2O system to heterogeneous equilibria of the title ternary systems was studied in the presence or absence of liquid phase immiscibility
in the type 1 subsystems. |
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