The influence of addition of silver and copper on the reducibility of CrAl3O6 system

The influence of addition of silver and copper on the reduction behavior of binary oxide CrAl 3 O 6 was investigated. The formation of copper chromite CuCr 2 O 4 and silver chromate Ag 2 CrO 4 during calcinations process was observed. The intermediate phase CrO was detected when copper and silver-co...

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Bibliographic Details
Published in:Kinetics and catalysis 2011-12, Vol.52 (6), p.835-842
Main Authors: Maniecki, T. P., Mierczyński, P., Maniukiewicz, W., Jóźwiak, W. K.
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Physical Chemistry
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Summary:The influence of addition of silver and copper on the reduction behavior of binary oxide CrAl 3 O 6 was investigated. The formation of copper chromite CuCr 2 O 4 and silver chromate Ag 2 CrO 4 during calcinations process was observed. The intermediate phase CrO was detected when copper and silver-copper systems were reduced at temperatures above 500°C. This intermediate is formed from Cr 2 O 3 , which is yielded by the initial reduction of Cr 2 O 4 2− species.
ISSN:0023-1584
1608-3210
DOI:10.1134/S0023158411060139