Browsing by Issue Date, starting with "2012-03"
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- A problemática das nanopartículas no contexto ocupacionalPublication . Matos, Maria Luísa Ferreira; Santos, Paula; Barbosa, Fernando
- New data on the Silostomella-event in the North Atlantic from IODP Expedition 339Publication . Grunert, Patrick; Hernández-Molina, Francisco Javier; Stow, Dorrik; Alvarez-Zarikian, Carlos; Roque, Ana Cristina; Voelker, Antje H. L.; Expedition IODP 339 Scientists
- The Mesolithic-Neolithic transition in southern IberiaPublication . Cortés Sánchez, Miguel; Jiménez Espejo, Francisco J.; Simón Vallejo, María D.; Gibaja Bao, Juan F.; Carvalho, António Faustino; Martínez-Ruíz, Francisca; Gamiz, Marta Rodrigo; Flores, José Abel; Paytan, Adina; López Sáez, José A.; Peña-Chocarro, Leonor; Carrión, José S.; Morales Muñiz, Arturo; Roselló Izquierdo, Eufrasia; Riquelme Cantal, José A.; Dean, Rebecca M.; Salgueiro, Emília; Martínez Sánchez, Rafael M.; De la Rubia de Gracia, Juan J.; Lozano Francisco, María C.; Vera Paláez, José L.; Llorente Rodríguez, Laura; Bicho, Nuno F.
- Geologia da região de Barrancos : a transversal de Barrancos - Santo Aleixo da RestauraçãoPublication . Piçarra, José Manuel
- Assessing landslide movements in volcanic islands using near-shore marine geophysical data : south Pico Island, AzoresPublication . Mitchell, Neil C.; Quartau, Rui; Madeira, José
- Preliminary results of IODP Expedition 339 Mediterranean OutflowPublication . Bahr, André; Hernández-Molina, Francisco Javier; Stow, Dorrik; Hodell, D. A.; Alvarez-Zarikian, Carlos; Roque, Ana Cristina; Voelker, Antje H. L.; Expedition IODP 339 Scientists
- Iberian Margin deep water dynamics : the role of the Mediterranean outflow waterPublication . Voelker, Antje H. L.; Abrantes, Fátima; Martin, Pamela A.; Lebreiro, Susana
- Battery recycling by hydrometallurgy : evaluation of simultaneous treatment of several cell systemsPublication . Nogueira, Carlos; Margarido, F.A research work has being carried out aiming at evaluating the possibility of treating simultaneously several electrochemical systems of spent batteries using the same process, in order to overcome the high costs and difficulties of selective collection and sorting. Zn-MnO2 systems, representing more than 75% of portable battery market, shall be treated in dedicated processes. The treatment assessment using a single hydrometallurgical process of the other major systems (NiCd, NiMH and Li-ion), having Ni and Co as main metals, was the aim of the research work here reported. Sulfuric acid leaching was demonstrated to be adequate for dissolving more than 90% of the metals of interest contained in batteries. The subsequent separation of metals by solvent extraction, using organophosphorous extractants like DEHPA and Cyanex 272, allowed the production of pure solutions of rare earths, cadmium/manganese, cobalt, nickel and lithium, enabling their further recovering