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- W1684877905 abstract "The mechanical permeability and the reflection coefficient at 1 atm and 20°C as well as the solute rejection efficiency at 50 and 100 atm are determined for aqueous solutions of HCl, NaCl, MgCl2, and AlCl3 over a wide concentration range using a strong anion exchange membrane. Systems with positive reflection coefficients yield a positive solute rejection. Therefore, the solute concentration of the filtrate is smaller than that of the phase under hydrostatic pressure. Just the reverse is true for systems with negative reflection coefficients. These observations are in complete agreement with theoretical predictions based on thermodynamics of irreversible processes as well as on the quantitative treatment of the model of membranes with narrow pores. – Experimentally found differences in the concentration dependence of the reflection coefficients between a 2–1-valent (MgCl2) and a 3 – 1 valent (AlCl3) electrolyte are predicted by the model of membranes with narrow pores.Mit einer stark basischen Anionenaustauschermembran werden die mechanische Permeabilitat und der Reflektionskoeffizient bei 1 atm und 20°C sowie der Entsalzungsgrad bei 50 und 100 atm fur HCl-, NaCl-, MgCl2- and AlCl3-Losungen uber einen groseren Konzentrationsbereich ermittelt. Systeme mit positiven Reflektionskoeffizienten haben auch einen positiven Entsalzungsgrad. Daher ist die Elektrolytkonzentration im Filtrat geringer als in der Losung unter Druck. Das Umgekehrte gilt fur Systeme mit negativen Reflektionskoeffizienten. Diese Beobachtungen stimmen mit den theoretischen Voraussagen der Thermodynamik irreversibler Prozesse und den Berechnungen nach dem Modell feinporiger Membranen vollkommen uberein. – Experimentell gefundene Unterschiede in der Konzentrationsabhangigkeit der Reflektionskoeffizienten zwischen einem 2 – 1-wertigen (MgCl2) und einem 3 – 1-wertigen (AlCl3) Elektrolyten stimmen mit Voraussagen nach dem Modell feinporiger Membranen uberein." @default.
- W1684877905 created "2016-06-24" @default.
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- W1684877905 date "1970-05-01" @default.
- W1684877905 modified "2023-09-28" @default.
- W1684877905 title "Study of the Interrelation Between Reflection Coefficient and Solute Rejection Efficiency Using a Strong Basic Anion Exchange Membrane" @default.
- W1684877905 doi "https://doi.org/10.1002/bbpc.19700740506" @default.
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