摘要
The electrochemical behaviour of Eu￣(3+) on cobalt electrode in KCl-ErCl3 melt has been studied by means of cyclic voltammetry and open-circuit potentiometry. The experimental results show that the Er-Co alloy is formed at first and then metallic erbium is deposited when the Er￣(3+) is reduced on the cobalt electrede. The conditions for preparing Er-Co alloy by cobalt consumable cathode have been investigated. The Er-Co alloy contained 92 wt% erbium is obtained. It is consist of Er_3Co and Er. The recovery of erbium is more than 90% and the current efficiency is near 80%.
The electrochemical behaviour of Eu￣(3+) on cobalt electrode in KCl-ErCl3 melt has been studied by means of cyclic voltammetry and open-circuit potentiometry. The experimental results show that the Er-Co alloy is formed at first and then metallic erbium is deposited when the Er￣(3+) is reduced on the cobalt electrede. The conditions for preparing Er-Co alloy by cobalt consumable cathode have been investigated. The Er-Co alloy contained 92 wt% erbium is obtained. It is consist of Er_3Co and Er. The recovery of erbium is more than 90% and the current efficiency is near 80%.
