Electrochemical reduction method for leaching terbium and cerium from waste phosphors.

ABSTRACT: Rare earth elements are commonly used in various fields due to their unique physical and chemical properties. Waste phosphors represent an important secondary source of rare earth elements, and their recovery is a crucial means of improving the utilization of these resources. When using FeCl₂ as a reducing agent to reduce Tb⁴⁺ and Ce⁴⁺ from washed phosphors, a large amount of reducing agent is required, and the Fe²⁺ cycle becomes complicated. In this study, the electrochemical reduction process was employed to treat washed phosphors. Under optimum conditions of FeCl₂ concentration of 0.10 mol L^-1, current density of 100 A m^-2, HCl concentration of 3 mol L^-1, temperature of 80 °C, L/S ratio of 30 mL g

SUBMITTER: Wang R 

PROVIDER: S-EPMC11635602 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature