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Membrane electrolysis for recovering Sb and Bi from elution solutions of ion-exchange resins used in copper electrorefining: A cyclic voltammetric study

Santana-Barros, Kayo; Machado, André Luiz Vargas; Vielmo, Vicente Schaeffer; Velizarov, Svetlozar; Ferreira, Jane Zoppas; Pérez-Herranz, Valentín; Bernardes, Andrea Moura (Elsevier, 2022-11-01)

[EN] Antimony (Sb) and bismuth (Bi), which have been considered critical raw materials by the European Commission, cause inconveniences to copper production when they are present as impurities in copper elec-trorefining ...
Organocatalytic Enantioselective Functionalization of Hydroxyquinolines through an Aza-Friedel-Crafts Alkylation with Isatin-derived Ketimines

Vila, C.; Rendón-Patiño, A.; Montesinos-Magraner, M.; Blay, G.; Muñoz Roca, María Del Carmen; Pedro, J.R. (John Wiley & Sons, 2018-03-01)

[EN] A highly enantioselective addition of hydroxyquinolines to isatin-derived ketimines has been realized using a quinine-derived thiourea organocatalyst. The reaction affords chiral 3-amino-2-oxindoles bearing a quinoline ...

Mostrando ítems 1-2 de 2