RECOVERY OF PERMANENT MAGNETS TYPE NDFEB FROM WEEE

Nour-Eddine Menad (1) , Alain Seron (1) , Maurice Save (1) , Yannick Menard (1) , N Maat , Jean-Marie Le Breton , V Nachbaur , A Bizouard (2) , M Delain (3) , L Waignein (4) , R Hennion (4) , O François (4) , F. von Der Weid (5, 3)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 Ecosystèmes
3 Entreprise
4 Galloo
5 SELFRAG

The increasing use of rare earths elements (REE) in a number of recent technological innovations led to a rapid increase (plus 50% in lastdecade) of their applications. Besides, Europe is one of the most important regions of consumption of these substances. In this context, in its 'Raw materials' strategy, Europe puts the recycling at the center of its concerns to secure its supplies in REEs. Recycling of these substances, on an industrial scale, remains somewhat developed while it presents numerous advantages over the exploitation of primary resources. Thus, in order to increase the efficiency of the use of the REEs and to decrease European dependence on these strategic elements, research and development efforts must be achieved in all areas of their life cycle whether it concerns exploitation of ores or end-of-life equipment such as the one EXTRADE project targets (Wastes of Electric and Electronic Equipment). In this context, the project EXTRADE aims to develop new fields of valorization of permanent magnets type NdFeB present in WEEE targeting 3 types of electronic equipment,i) hard disk drives of computers, ii) speakers of audio and video devices and iii) small electric motors present in ICT (information and Communication Technologies). EXTRADE project proposes to address the extraction of the NdFeB permanent magnetsfrom the WEEE deposit, developing units operation of treatment of WEEE intended to retrieve the contents of the magnet type NdFeB and to develop thermal, physical and physico-chemical treatments for producing new magnets or fractions enriched in alloys of REEs compatible with a recycling in the hydrometallurgical production of REE.

Mots clés: Waste of electric and electronic equipment; permanent magnets; rare earth elements; thermal treatment; recovery; vaporization process

Domaines: Génie des procédés

Nour-Eddine Menad, Alain Seron, Maurice Save, Yannick Menard, N Maat, et al.. RECOVERY OF PERMANENT MAGNETS TYPE NDFEB FROM WEEE. 6th International Conference on Engineering for Waste and Biomass Valorisation, May 2016, Albi, France. ⟨hal-01298284⟩