Oxidation of nickel-ii-to nickel-iii (hydroxide) for use in alkaline - batteries - by passing ozone through a suspension of nickel-ii-hydrox

摘要

Finely powdered nickel-II-hydroxide is suspended in moisture-free satd. fluoro-hydrocarbon, esp. CCl3CF3, and a vigorous stream of ozone or ozonised gas is passed through the suspension, which is at the same time mechanically or ultrasonically agitated, at room temp. in a vessel fitted with a brine-cooled reflux condenser. The ratio liq-solid is approx 3:1 by wt. Complete oxidation to nickel-III-hydroxide takes place within a few hrs. The product is filtered off and suction dried.