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Bauxite ndi thanthwe la sedimentary lomwe lili ndi alumina wambiri, m'munsi popanga zotayidwa. It is generally easy to mine because it is found near the surface of the terrain. Komabe, the process of separating the alumina from the other base elements in bauxite can be environmentally unfriendly.
Kwa bauxite yoyenga njira ya Bayer-yomwe imasiyanitsa alumina wamtengo wapatali ndi zinthu zozungulira imakhudzana ndi zopangira, kutentha kwambiri, ndi kukakamizidwa. Mtsinje wotsatirawo, makamaka kuchokera ku bauxite, ndi slurry wodziwika kuti "matope ofiira,”Zomwe ziyenera kusungidwa m'madziwe mpaka poizoni wa mankhwalawo atathe. Matope ofiira amatha kuwononga chilengedwe ngati mayiwe atalephera ndipo yankho litulutsidwa m'madzi amderalo.
Kuchepetsa kupanga matope ofiira ndikutulutsa alumina ambiri koyambirira kwa ntchitoyi, cha ku Switzerland Zida & Technology wa tribo-electrostatic lamba olekanitsa can be used prior to the Bayer process. It removes silicates from bauxite and increases available alumina from finely ground bauxite. Zotsatira zake ndikubwezeretsa kuchuluka kwa alumina, kugwiritsa ntchito kotsika kotsika kwa soda, and a reduced need for red mud-holding ponds. A reduction in the amount of energy needed during the Bayer process to heat and pressurize the mined materials.
cha ku Switzerland Zida & Wopatulira lamba wa Technology amathandizanso kuti azigwiritsa ntchito mphamvu kwambiri. It can process a large amount of feed material per hour. It is small enough to be used on-site at refining operations, kuchepetsa mtengo wotumizira.
Mwanjira ina, mudzakhala mukusunga ndalama pokonza, making more money on the additional alumina. You’ll be pulling from the feed material, and you can present your mining company as an eco-friendly operation. It goes a long way toward building a good reputation with the locals.
