A PROCESS FOR THE DE-INIZATION OF AQUEOUS SALINE SALATIONS

摘要

1311163 Ion exchange CONSIGLIO NAZIONALE DELLE RICERCHE 9 July 1970 [12 July 1969] 33291/70 Heading B1J Solutions to be deionised are passed through a weakly acidic, cation-exchanger and at least part of the effluent is passed through a weakly basic, anion-exchanger. At least part of the effluent from the ion-exchanger is fed to the cation exchanger feed to ensure that said feed during recycling has a methyl orange alkalinity. CO 2 may be removed from effluents and used for recycling in a stage of the process.