Extração de elementos terras raras de resíduos de placa de circuito impresso: investigação do uso do ultrassom para recuperação de Ce, La e Y

Paola De Azevedo Mello; Agatha Gabrielly  Moreira Moura; Thaís Lavarda Gatiboni; Gabrielle Dineck Iop

Autores/as

Paola De Azevedo Mello Universidade Federal de Santa Maria
Agatha Gabrielly Moreira Moura Universidade Federal de Santa Maria
Thaís Lavarda Gatiboni Universidade Federal de Santa Maria
Gabrielle Dineck Iop Universidade Federal de Santa Maria

Palabras clave:

Ultrasonido. Extracción. Elementos tierras raras. Residuos de placas de circuito impreso.

Resumen

En este trabajo se investigó la viabilidad de uso del ultrasonido para intensificación del proceso de extracción de elementos tierras raras de residuos de placas de circuito impreso (WPCB), buscando el reciclaje de estos elementos que tienen alto valor agregado y están presentes en diversos productos tecnológicos. Los principales parámetros relacionados al proceso de extracción fueron evaluados utilizándose un planeamiento factorial y un baño de ultrasonido operando a 25 kHz. Después de la elección de los parámetros adecuados, otros sistemas de ultrasonido de diferentes frecuencias y potencias también fueron evaluados, así como el uso de una agitación convencional (ausencia de ultrasonido).

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Citas

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