Liquid silver tris(perfluoroethyl)trifluorophosphate salts as new media for propene/propane separation
Pliquett D, Schulz P, Heinemann FW, Bause A, Wasserscheid P (2016)
Publication Status: Published
Publication Type: Journal article
Publication year: 2016
Journal
Publisher: Royal Society of Chemistry
Book Volume: 18
Pages Range: 28242-28253
Journal Issue: 40
DOI: 10.1039/c6cp05653a
Abstract
A series of silver tris(perfluoroethyl) trifluorophosphate (Ag[FAP]) complexes with various ligands (acetonitrile ACN, chloroacetonitrile Cl-ACN, acrylonitrile acryl-CN, pyridine py, ethylenediamine en and propene C3H6) have been synthesized starting from Ag[NO3] and K[FAP] using three different routes. Physicochemical properties as well as crystal structures ([Ag(ACN)(2/4)][FAP], [Ag(py) 2][FAP]) were determined and the suitability of such Ag salts for propene/propane separation processes was investigated. The investigated silver complexes exhibit either low melting points or form liquid complexes when contacted with gaseous propene at 30 degrees C. This makes them promising separation materials for both liquid membranes and absorber fluids due to their high silver content and significant propene capacity. Single (iGSC) and mixed (NMR) gas solubilities as well as diffusion coefficients (PFG-NMR) of propene and propane were determined to predict the theoretical selectivity of solubility, membrane selectivity, capacity and transport properties of the silver salts according to the solution diffusion model. A strong influence of the number and type of ligands on chemical complexation, physicochemical properties and separation performance has been observed.
Authors with CRIS profile
Daniel Pliquett
Lehrstuhl für Chemische Reaktionstechnik (CRT)
Peter Schulz
Lehrstuhl für Chemische Reaktionstechnik (CRT)
Frank Wilhelm Heinemann
Lehrstuhl für Anorganische und Allgemeine Chemie
Peter Wasserscheid
Lehrstuhl für Chemische Reaktionstechnik (CRT)
Additional Organisation(s)
Involved external institutions
Germany (DE)How to cite
APA:
Pliquett, D., Schulz, P., Heinemann, F.W., Bause, A., & Wasserscheid, P. (2016). Liquid silver tris(perfluoroethyl)trifluorophosphate salts as new media for propene/propane separation. Physical Chemistry Chemical Physics, 18(40), 28242-28253. https://doi.org/10.1039/c6cp05653a
MLA:
Pliquett, Daniel, et al. "Liquid silver tris(perfluoroethyl)trifluorophosphate salts as new media for propene/propane separation." Physical Chemistry Chemical Physics 18.40 (2016): 28242-28253.
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