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To realize the effective separation of Na3VO4, Na2CrO4 and the impurity Na2CO3 in a newly developed vanadium production process using concentrated alkaline solution as reaction media, the equilibrium liquid phase solubility and solid phase compositions of the NaOH–Na3VO4–Na2CrO4–Na2CO3–H2O system at (40 and 80) °C were measured. The obtained solubility data were afterwards compared with quaternary...
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