Electrolytic Reduction of Iron from Iron Residue of Nickel Production in Alkaline Aqueous Solution

2021 ◽  
Vol MA2021-02 (60) ◽  
pp. 1773-1773
Author(s):  
Bo Qin ◽  
Babak Khalaghi ◽  
Geir Martin Haarberg
Keyword(s):  
Aqueous Solution ◽  
Electrolytic Reduction ◽  
Nickel Production ◽  
Alkaline Aqueous Solution ◽  
Reduction Of Iron

Ruthenium catalysed oxidation of cyclohexanol

1982 ◽  
Vol 35 (6) ◽  
pp. 1245 ◽  
Author(s):  
P Becker ◽  
JK Beattie
Keyword(s):  
Aqueous Solution ◽  
Isotope Effect ◽  
Phosphate Buffer ◽  
Hydride Transfer ◽  
Deuterium Isotope Effect ◽  
Rate Law ◽  
Alkaline Aqueous Solution ◽  
Catalysed Oxidation

The oxidation of cyclohexanol by ferricyanide in alkaline aqueous solution is catalysed by micromolar concentrations of K3RuCl6. The rate law at 25.0�C in pH 11.9 phosphate buffer containing 0.50 M NaCl is -d[FeIII]/dt = [Ru](2klk2[alcohol][FeIII])/(2kl[alcohol] + k2[FeIII]) with kl 12 � 2 mol-1 1. s-1 and k2 (2.5 � 0.2) × 102 mol-1 1. s-1. A deuterium isotope effect of about 4 is observed when (D12)cyclohexanol is used. A mechanism consistent with these observations involves reduction of the RuIII catalyst by hydride transfer from the alcohol followed by reoxidation by ferricyanide to the original RulIII state.

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