Ultrasound-assisted electrodialytic separation of cobalt from tungsten carbide scrap powder.

ABSTRACT: Recycling of tungsten carbide-cobalt (WC-Co) will considerably grow in the future. Thus, efficient and greener methods for the recovery of the critical raw materials, Co and W, will be necessary. In this work, we evaluate the separation of Co from WC using an electrodialytic (ED) process alone and coupled with ultrasound-assisted extraction (UAE). The WC-Co powder was suspended in different leaching agents, and the effects of UAE amplitude (probe system), pulse periods, and treatment time were evaluated. The Co extraction was mainly dependent on the leaching agent when only UAE was applied, being more efficient under acidic pH. The ED process, alone and coupled to UAE, was then applied using a reactor with two compartments separated by a cation exchange membrane with nitric acid as anolyte

SUBMITTER: Guedes P 

PROVIDER: S-EPMC12851573 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature