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Complexation structure and transport mechanism of 1,5-hexadiene and 1-hexene through silver facilitated transport membranes

✍ Scribed by R.M Goering; C.N Bowman; C.A Koval; R.D Noble; M.E Ashley

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 189 KB
Volume: 172
Category: Article
ISSN: 0376-7388
DOI: 10.1016/s0376-7388(00)00319-7

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✦ Synopsis

The purpose of this work was to investigate olefin/silver (I) complexation and transport through silver facilitated transport membranes. Specifically, the transport of 1,5-hexadiene and of 1-hexene within these membranes was studied and a hypothetical conformation for the silver (I) complex of 1,5-hexadiene in aqueous systems is discussed. Absorption of 1-hexene and 1,5-hexadiene into aqueous silver nitrate solutions revealed predominantly 1:1 complexation of these olefins with silver. Absorption and transport experiments in silver-exchanged Neosepta ® CM-1 membranes confirmed the predominance of 1:1 1,5-hexadiene/silver (I) complexation in this membrane as well, showing that transport through these membranes occurs primarily through a 1:1 1,5-hexadiene/silver (I) complexation mechanism.

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