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dc.contributor.authorTan, HKSen_US
dc.date.accessioned2014-12-08T15:43:41Z-
dc.date.available2014-12-08T15:43:41Z-
dc.date.issued2001-07-01en_US
dc.identifier.issn0368-1653en_US
dc.identifier.urihttp://hdl.handle.net/11536/29550-
dc.description.abstractThe equilibrium properties of a weak acidic cation resin were studied theoretically and experimentally. Equations were derived for the effective isotherm of this type of resin. The derived equations are applicable to the exchange of hydrogen ions with any metallic ions with a valence of n. Based on equilibrium theory, theoretical breakthrough curves were derived from the effective isotherm expressions. Experiments were performed using IRC-50, a weak cationic resin. Column runs were conducted with 0.05 to 0.1 N of both NaCl and Ca(NO3)(2) solutions. The experimental breakthrougough curves obtained for both Na+ - H- and Ca+ + - H+ exchange show that the breakthrough occurs very early and that the operating capacity is only 2-3% of the ultimate capacity of the resin. Comparing the theoretical breakthrough curves with the experimental ones suggests that the value of the normalized dissociation constant is between 0.001 and 0.003, and that for both the Na+ - H+ and Ca+ + - H+ exchange systems, the normalized selectivity coefficient is between 0.2 and 0.5.en_US
dc.language.isoen_USen_US
dc.subjection exchangeen_US
dc.subjectweak acidic resinen_US
dc.subjectequilibrium theoryen_US
dc.titleEffective isotherms and equilibrium characteristics of a weak acidic cation resinen_US
dc.typeArticleen_US
dc.identifier.journalJOURNAL OF THE CHINESE INSTITUTE OF CHEMICAL ENGINEERSen_US
dc.citation.volume32en_US
dc.citation.issue4en_US
dc.citation.spage383en_US
dc.citation.epage389en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000170999200011-
dc.citation.woscount0-
Appears in Collections:Articles