Novel non-aqueous Fe(III)/Fe(II) redox couple for the catalytic oxidation of hydrogen sulfide to sulfur by air.
A series of Fe(III) salts and organic solvents have been screened to develop novel non-aqueous catalysts for the conversion of H2S to sulfur. FeCl3/95% N-methylpyrrolidinone/5% H2O was found to be a most efficient non-aqueous system. The process chemistry, the proposed mechanism of catalytic oxidation of H2S, and the electrochemistry are discussed.
Hua
Guoxiong
G
School of Chemistry, University St Andrews, St Andrews, Fife, UK.
Zhang
Qingzhi
Q
McManus
Derek
D
Slawin
Alexandra M Z
AM
Woollins
J Derek
JD