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1 INTRODUCTIONConcentratedelectrolytesolutionsarecommonintermediatematerialsinhydrometallurgicalandchemicalindustrialprocesses[1] .Andtheactivityco efficientisoneofthebasicpropertiesofelectrolyteso lutions ,whichisusefulfortheestimationofthesolu bilityofinorganicsalts ,thedistributionandsepara tioncoefficientsinliquid liquidextractionprocesses ,andthephasediagramofwater saltsystems .Asemi empiricalion ioninteractionmodel,alsothemostpopularmethodsofar ,proposedbyPitzer[2 ] ,canbeusedtocal… 相似文献