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Símbolo : Ta
Características químicas: El coltan es la abreviatura de columbita - tantalita , una serie de minerales formados por la mezcla de columbita y tantalita en cualquier proporción. Es de color metálico apagado. De él se extrae el metal tantalio, que presenta una gran resistencia al calor así como propiedades eléctricas.
Países productores :
Australia
Canadá
Brasil
China
Congo
Tailandia
Malasia
Namibia
Egipto
Etiopia
Zimbabwe
Mozambique
Sudáfrica
Nigeria
Usos: Se trata de un recurso estratégico, imprescindible en la fabricación de componentes electrónicos avanzados. El tántalo obtenido a partir del coltan se usa principalmente en la elaboración de componentes electrónicos conocidos como condensador eléctrico de Tántalo, un tipo bastante común de condensador presente en gran cantidad de dispositivos electrónicos, como en teléfonos móviles, ordenadores o proyectos de alta tecnología.
Empresas que lo comercializan: entre las empresas que comercializan el coltan destacan dos principalmente: “Barrick Gold Corporation” y “American Mineral Fields”.
Países en los que se vende: los países de África y mas desarrollados que son los productores, venden el coltan y sus derivados a países de Europa y del Hemisferio Norte.
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Enviado por: Arrax Idioma: castellanoPaís: España