ABSTRACT: This article shows the main results after roasting a gold ore with electromagnetic wave... more ABSTRACT: This article shows the main results after roasting a gold ore with electromagnetic waves. A mineral sample from southern Bolivar (Colombia) was chosen, due, among other reasons, to the difficulty that miners from that zone tend to have when trying to recover the gold by traditional means. It was found that after applying electromagnetic waves in the microwaves range, roasting time was reduced by 77 to 83%, on average decreasing the consumption of electrical energy by about 88%, while allowing gold recoveries of about 90 % (w/w) of that achieved through traditional roasting. This indicates that it is an alternate treatment worth deeper exploration at pilot plant scale.
El presente articulo muestra los principales resultados obtenidos al realizar la tostacion con on... more El presente articulo muestra los principales resultados obtenidos al realizar la tostacion con ondas electromagneticas a un mineral de oro. Se escogio una mena del sur de Bolivar (Colombia), debido entre otras razones, a que los mineros de dicha zona suelen tener problemas para recuperar el mineral precioso por medios tradicionales. Se encontro que al aplicar ondas electromagneticas en el rango de la microondas, el tiempo de tostacion se redujo entre el 77 y el 83%, una disminucion promedio cercana al 88% del consumo de energia electrica y se logro una recuperacion de aproximadamente el 90% (peso/peso) de la obtenida con una tostacion tradicional a nivel de laboratorio. Esto indica que es una alternativa que justifica estudios mas profundos a escala de planta piloto.
ABSTRACT: This article shows the main results after roasting a gold ore with electromagnetic wave... more ABSTRACT: This article shows the main results after roasting a gold ore with electromagnetic waves. A mineral sample from southern Bolivar (Colombia) was chosen, due, among other reasons, to the difficulty that miners from that zone tend to have when trying to recover the gold by traditional means. It was found that after applying electromagnetic waves in the microwaves range, roasting time was reduced by 77 to 83%, on average decreasing the consumption of electrical energy by about 88%, while allowing gold recoveries of about 90 % (w/w) of that achieved through traditional roasting. This indicates that it is an alternate treatment worth deeper exploration at pilot plant scale.
El presente articulo muestra los principales resultados obtenidos al realizar la tostacion con on... more El presente articulo muestra los principales resultados obtenidos al realizar la tostacion con ondas electromagneticas a un mineral de oro. Se escogio una mena del sur de Bolivar (Colombia), debido entre otras razones, a que los mineros de dicha zona suelen tener problemas para recuperar el mineral precioso por medios tradicionales. Se encontro que al aplicar ondas electromagneticas en el rango de la microondas, el tiempo de tostacion se redujo entre el 77 y el 83%, una disminucion promedio cercana al 88% del consumo de energia electrica y se logro una recuperacion de aproximadamente el 90% (peso/peso) de la obtenida con una tostacion tradicional a nivel de laboratorio. Esto indica que es una alternativa que justifica estudios mas profundos a escala de planta piloto.
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