Ingenieros de Columbia crean un método más rápido para extraer litio

Investigadores de Columbia Engineering han desarrollado una nueva técnica para extraer litio de salmueras subterráneas de manera más rápida y con menor impacto ambiental. El enfoque utiliza un disolvente sensible a la temperatura y evita las grandes balsas de evaporación comunes en la producción actual.

El método, denominado extracción selectiva mediante disolvente conmutable o S3E (por sus siglas en inglés), funciona absorbiendo litio y agua de las salmueras a temperatura ambiente. Posteriormente, calentar el disolvente libera el litio purificado y permite reutilizar el material. Las pruebas mostraron tasas de extracción de litio hasta 10 veces superiores a las del sodio y 12 veces mayores que las del potasio.

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