Developing Feasible Processes for the Total Recycling of WEEE to Recover Rare Metals

Lee, Jae-chun and Jha, Manis K and Panda, Rekha and Choubey, Pankaj K and Kumari, Archana and Kim, Tai Gyun (2021) Developing Feasible Processes for the Total Recycling of WEEE to Recover Rare Metals. Rare Metal Technology 2021 . pp. 197-209.

Restricted to NML users only. Others may use ->



The present paper reports several application-oriented processes developed for the recovery of various non-ferrous (Cu, Ni, Al, Pb, Sn), rare (Li, Co, In), precious (Au, Ag, Pt, and Pd), and rare earth metals (Nd, Ce, La, Y, Eu) from various urban ores, i.e., waste electrical and electronic equipments (WEEE), liquid crystal displays (LCD), batteries, magnets, fluorescent tubes, etc. Initially, the WEEE and various wastes were classified and dismantled. Further, the materials were pretreated to separate plastics, epoxy, ceramics, rubber, iron cover, and metallic concentrates. Based on their properties, plastic, epoxy and rubber could be either pyrolysed for production of marketable low-density oil and saleable activated carbon or directly recycled. The pre-treated metallic concentrates were processed by hydrometallurgical techniques, i.e., leaching, solvent extraction, ion-exchange, electro-winning for maximum recovery of metals. Various flow sheets discussed for rare metal extraction and processing strictly comply with environmental regulations.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Rare metals, E-waste, Recycling, Hydrometallurgy
Divisions:Metal Extraction and Forming
ID Code:8335
Deposited By:Ms. Rekha Panda
Deposited On:17 Mar 2021 15:47
Last Modified:17 Mar 2021 15:47

Repository Staff Only: item control page