水溶液中におけるFe2+イオンの空気酸化(第1報)

概要

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In order to study the rate of air oxidation of ferrous ion in aqueous solution, the effects of initial pH value of solution, temperature, and flow rate of air stream were pursued. The experimental results are summarized as follows. (1) Both initial rates of oxidation in the aqueous solutions of pH at 4.5 and 4.8 were about ten times higher than the rate in the solution of initial pH at 4.2. The rate of reaction was retarded in the former solutions when the fractional reaction exceeds about 0.5.(2) The initial rate of reaction is higher at higher temperature of the solution. The apparent activation energy was estimated at about 11 kcal/mole. (3) Any significant difference was not found in the average bubble diameter at the Reynolds number of 500, 700, 1000, 1500 and 2000, and the increase of the rate of reaction due to the rise of Reynolds number from 700 to 1500 may be attributed to the increase of flow rate of air stream.
津山工業高等専門学校の論文
1977-03-15