Interfacial resistances in the liquid extraction of inorganic nitrates

✍ Scribed by W.J. McManamey

• Publisher: Elsevier Science
• Year: 1961
• Tongue: English
• Weight: 930 KB
• Volume: 15
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(61)85024-0

✦ Synopsis

AbstractStudies

of the extraction of divalent copper, cobalt and nickel nitrates from water by n-butanol at 25' C in a stirred mass transfer cell showed that the mass transfer process is influenced by an interfacial resistance due to the reaction at the water-solvent phase boundary, in addition to the water and solvent individual phase resistances. This interfacial resistance does not vary with the time of contact of the phases, and the relationships between the interfacial resistance rate constants and the nitrate concentrations at the interface are of the form predicted from the kinetics of the chemical reaction for nitrate extraction. Under the conditions in the transier cell used the interfacial resistance was between 4Q and 80 per cent of the total resistance to mass transfer.