鋁土礦是一種沉積岩,富含氧化鋁。, 製造鋁的底座。. It is generally easy to mine because it is found near the surface of the terrain. 然而, the process of separating the alumina from the other base elements in bauxite can be environmentally unfriendly.
對於鋁土礦精鍊,拜耳工藝將寶貴的氧化鋁與周圍材料分離,涉及腐蝕性材料。, 高溫。, 和壓力。. 由此產生的廢物流。, 特別是從鋁土礦。, 是一種泥漿,俗稱"紅泥","必須保存在保持池塘,直到溶液的毒性中和。. 如果保持池塘發生故障,並且溶液被釋放到當地水道中,紅泥可能會對環境產生嚴重的影響。.
盡量減少紅泥的產生,並在工藝開始時提取更多的氧化鋁。, ST 設備 & 技術的 三波靜電帶分離器 can be used prior to the Bayer process. It removes silicates from bauxite and increases available alumina from finely ground bauxite. 結果是回收了更多的氧化鋁。, 減少使用昂貴的腐蝕性蘇打水。, 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.
ST 設備 & 技術的皮帶分離器也非常節能。. It can process a large amount of feed material per hour. It is small enough to be used on-site at refining operations, 降低運輸成本。.
換句話說,, 您將節省處理成本。, 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.
