煙灰よりレニウムの抽出
1963 年 79 巻 903 号 p. 659-663
詳細
1963 年 79 巻 903 号 p. 659-663
The extraction of Rhenium from some flue dusts containing 0.07-0.42% Re was studied. The processes tested were as follows:
a) Direct leaching with water
b) Leaching with aqueous solution containing oxidizing agents such as nitric acid, bromine or calcium hypochlorite.
c) Sintering with Ca (OH) 2followed by leaching with water
d) Leaching with alkali solution such as NaOH or Ca (OH) 2
The best result was obtained when the samples were subgected to leaching with aqueous solution containing nitric acid or bromine. More than 95 per cent. of rhenium present was extracted.
