3 documents found, page 1 of 1
Li-ion Battery Recycling: A Summary Review
Nogueira, Carlos; Neiva Correia, Maria Joana; Margarido, Fernanda; Plancha, Maria João; Pedrosa, Fátima; Gonçalves, Ana; Silva, Clara; Silva, SaraABSTRACT: A short review of battery recycling technologies is presented. Main components and materials of battery cells, modules and packs are identified, highlighting their compositions and contents. Main component of packs is aluminium, followed by the cathode materials, anode materials, copper and polymers. Safe discharge of the spent batteries is mandatory, and the subsequent dismantling allows separation a...
Acid refining of synthesised alloys within the quaternary system Fe-Si-Ca-Al: e...
Queiroz, Ana; Margarido, Fernanda; Martins, J.P.A systematic study of synthesis of different chemical composition of alloys within the quaternary Fe-Si-Ca-Al system, versus acid leaching refining using HCl with or without FeCl3 has been undertaken. Such study has the aim of achieving an adequate structural composition of Fe-Si alloys, in order to obtain high purity and fine particle size silicon by acid leaching, at more reduced costs. The experimental resul...
Acid leaching of alloys within the quaternary system Fe-Si-Ca-Al
Margarido, Fernanda; Figueiredo, Maria Ondina; Queiroz, Ana; Martins, João Pedro de AlmeidaSilicon with high purity and fine particle size can be produced by acid leaching of Fe-Si industrial alloys under the condition that they have adequate chemical composition and structural constitution. Such alloys contain phases that fall within the system Fe-Si-Ca-Al, where the quaternary phase Caalsifer, with aproximate formula (Fe0.8Al0.1 0.1) (Si0.8Ca0.2)2, is found along with several binary and ternary pha...