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YbSO_4 purification by an electrolytic reduction method from Tm-Yb-Lu concentrates in sulphate medium was studied, in which Ru-Ir-Ti alloy nets and mercury were used as anode and cathode respectively under normal atmosphere without nitrogen or argon gas protection. The parameters of the electrodes, such as their areas, positions, and the distance between the anode and cathode were optimized for the electrolytic reduction process. By the optimal process, the product YbSO_4 is purified to 99.5% with recovery of 80%. Meanwhile, Lu is also concentrated into 50%, which is beneficial to its further purification.
YbSO_4 purification by an electrolytic reduction method from Tm-Yb-Lu concentrates in sulphate medium was studied, in which Ru-Ir-Ti alloy nets and mercury were used as anode and cathode respectively under normal atmosphere without nitrogen or argon gas protection. The parameters By the optimal process, the product YbSO_4 is purified to 99.5% with recovery of 80%. Meanwhile, Lu is also concentrated into 50%, which is beneficial to its further purification.