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Studies on the mechanism and kinetics of the oxidation of copper sulphide—II oxidation of copper sulphide mixed with alumina in a fluidised bed

✍ Scribed by N.D. Ganguly; S.K. Mukherjee

Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
751 KB
Volume
22
Category
Article
ISSN
0009-2509

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✦ Synopsis

The kinetics and mechanism of the oxidation of cupric sulphide mixed with ignited alumina have been studied in a fluidised bed. Incorporation of alumina has been found necessary to maintain uniform and continued fluidisation.

The product distribution as wel1 as the mechanism of oxidation in the presence of alumina in a fluidised bed is completely different from that in a fixed bed of pure copper sulphide (reported in Part 1). The reaction is no longer autocatalytic and copper sulphate, instead of cuprous oxide (formed in the fixed bed), was the main solid product.

Both of the following two rate-expressions represent the kinetics of oxidation quite satisfactorily:

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