| 摘要 |
<p>A process and a plasma reactor, for the transformation by plasmogenic way of bauxite - occurring combined aluminium in high degree purity alumina, are the subject of the present invention. Thus obtainable are alumina and by-products, each of which is enriched in one of the main other valuable bauxite occurring elements/compounds (titanium, iron, silica), to be sent to the respective reference market. Accordingly the proportion of material to be handled as true waste is drastically reduced. Said process represents an alternative to the Bayer process for the alumina production from bauxite, in the process of the invention the production of refused and waste materials compared to the Bayer process, is lowered and the environmental impact is reduced too. A block diagram of the process of the invention, according to a specific embodiment thereof in arc transferred plasma reactor, is shown in</p> |
