Recovery of neodymium as value added product NdF3 from rare earth magnet

Jha, Amrita Kumari and Jha, Manis K and Kumar, Vinay and Sahu, Rina (2013) Recovery of neodymium as value added product NdF3 from rare earth magnet. In: Proceedings of the XIII lnternational Seminar on Mineral Processing Technology (MPT-20 I 3), 10/12/2013 to 12/12/2014, CSIR-IMMT, Bhubaneswar.

[img]PDF - Published Version
Restricted to NML users only. Others may use ->



Rare earth metals (REMs) have broad applications in the manufacturing of fluorescent materials for lamp, CRT and plasma displays, permanent magnets for hybrid car, hard disk of personal computer etc. These equipments are disposed at the end of their life which cause hazardous to environment and also affect human health as well as aquatic life. In order to conserve the natural resources and reduce the environmental pollution, the hydrometallurgical process has been studied to recover the valuables from magnet of the hard disk of the personal computers. The various process parameters have been studied to leach out the neodymium and other associated metals viz. iron, nickel, boron using sulfuric acid as lixiviant at different pulp density and time. A quantitative dissolution of neodymium and other metals was achieved under the optimized condition. Pure neodymium fluoride salt was produced from the purified solution by the selective precipitation, crystallization/ evaporation processes.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Recycling, Nd, Leaching, E-waste
Divisions:Metal Extraction and Forming
ID Code:6772
Deposited On:21 Dec 2013 21:34
Last Modified:27 Dec 2013 17:10
Related URLs:

Repository Staff Only: item control page