JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
OVERALL RATE OF OZONE OXIDATION OF CYANIDE IN BUBBLE COLUMN
MASAAKI TERAMOTOYOSHIHIRO SUGIMOTOYASUHIRO FUKUIHIROSHI TERANISHI
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1981 Volume 14 Issue 2 Pages 111-115

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Abstract

Oxidation of cyanide with ozone was carried out using a semi-continuous bubble column and a continuous bubble column. It was found that the overall reaction rate was strongly controlled by liquid-film mass transfer resistance. The observed rate was satisfactorily explained by the theory of gas absorption with chemical reactions if the intrinsic rate expressions of self-decomposition of ozone and the ozone oxidation of cyanide which had been obtained by the present authors were applied to the theoretical equations.
A method for evaluating capacity coefficient of liquid-phase mass transfer from the absorption rate of ozone into water of high pH is also presented.

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© The Society of Chemical Engineers, Japan
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