Process for continuously producing aluminum from clays

   
   

A process for purifying solid crude aluminum chloride, containing iron impurities, includes the steps of mixing iron with the crude aluminum chloride and reactively subliming and desubliming the mixture. A process for continuous production of metal chlorides includes the steps of providing metallic ore, containing iron purities, and a carbon source; drying the metallic ore; drying the carbon source; mixing the dried metallic ore, the dried carbon source, and a sulfur-containing compound; calcining the mixture in a first fluidized bed reactor in the presence of air; chlorinating the calcined product in a second fluidized bed reactor in the presence of additional carbon source and additional sulfur-containing compound to produce crude metal chlorides and waste gases; and reactively subliming and desubliming the crude metal chlorides, in the presence of additional iron, aluminum, cesium, copper, lead, lithium, magnesium, mercury, potassium, sodium, titanium, uranium, zinc or zirconium, to produce purified aluminum chloride.

Um processo para purifying o cloreto de alumínio cru contínuo, contendo impurezas do ferro, inclui as etapas do ferro misturando com o cloreto de alumínio e reactively o subliming e desubliming crus a mistura. Um processo para a produção contínua de cloretos do metal inclui as etapas de fornecer o minério metálico, contendo purities do ferro, e uma fonte do carbono; secando o minério metálico; secando a fonte do carbono; misturando o minério metálico secado, a fonte secada do carbono, e um composto sulfur-containing; calcining a mistura em um primeira fluidized o reator da cama na presença do ar; chlorinating o produto calcined em um segundo fluidized o reator da cama na presença da fonte adicional do carbono e do composto sulfur-containing adicional para produzir cloretos crus do metal e os gáses waste; e reactively o subliming e desubliming os cloretos crus do metal, na presença do ferro, do alumínio, do césio, do cobre, da ligação, do lítio, do magnésio, do mercúrio, do potassium, do sodium, do titânio, do urânio, do zinco ou do zirconium adicional, para produzir purified o cloreto de alumínio.

 
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