RELEVÂNCIA DAS TERRAS RARAS PARA O SETOR ENERGÉTICO

Amilton Ferreira da Silva Júnior; Marcos Flávio de Campos

doi:10.15628/holos.2016.3753

Autores

Amilton Ferreira da Silva Júnior Campus Angra dos Reis - CEFET/RJ http://orcid.org/0000-0002-6569-3392
Marcos Flávio de Campos http://orcid.org/0000-0001-8084-1624

DOI:

https://doi.org/10.15628/holos.2016.3753

Palavras-chave:

Terras Raras, Energia, Ímãs, Fósforos luminescentes, Turbinas eólicas.

Resumo

As reservas de terras raras no Brasil são re-avaliadas. Terras raras podem ser obtidas como subproduto da extração de nióbio, tântalo e estanho. As principais aplicações de terras raras são discutidas. Entres essas aplicações encontram-se ímãs, fósforos luminescentes e catálise. Uma das aplicações de maior demanda em volume são ímãs NdPrFeB para turbinas gigantes de energia eólica. Lâmpadas fluorescentes estão sendo substituídas por lâmpadas de LED, reduzindo a demanda por Európio.

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