Recuperação de cádmio de baterias níquel-cádmio via extração seletiva com tributilfosfato (TBP)
AUTOR(ES)
Barandas, Ana Paula Mauro Gonçalves, Valverde Jr, Ivam Macedo, Afonso, Júlio Carlos, Mantovano, José Luiz, Cunha, José Waldemar Silva Dias da
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2007-06
RESUMO
This work describes a recovery process of cadmium from spent nickel-cadmium batteries by a new hydrometallurgical route based on the selective extraction in hydrochloric acid medium with tributylphosphate (TBP), alone or dissolved in kerosene. The best results were obtained when TBP concentration was at least 75 vol%. Nickel extraction was negligible under these conditions. It was isolated after processing the rafinate through an anionic ion-exchange column. Final wastes generated are basically sodium chloride solutions, with no turbidity, color or heavy metals present in significant amounts.
Documentos Relacionados
- Baterias de níquel-hidreto metálico, uma alternativa para as baterias de níquel-cádmio
- Avaliação da lixiviação do cádmio e níquel provenientes da degradação de baterias níquel-cádmio em uma coluna de solo
- Recuperação de cobalto de baterias de níquel metal-hidreto (Ni-MH) via extração seletiva com cyanex 272
- Recuperação de níquel, cobalto e terras raras de baterias níquel metal hidreto - NiMH
- The yeast TATA-binding protein (TBP) core domain assembles with human TBP-associated factors into a functional TFIID complex.