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前言利比里亚邦格(Bong)采矿公司是利比里亚、西德、意大利联合投资的企业,于1965年在邦格铁矿开始经营,1969年公司生产了440万吨铁精矿。全厂建成后,于1971年将生产200万吨球团矿和300万吨铁精矿粉。整个流程设计均由杜塞道夫采矿公司经手。选矿流程是在1961～1962年期间,在西德戈斯拉的奥特弗雷森(Othfresen)进行研究的,有关的结果已经有了详细的报告。原矿是磁铁矿、赤铁矿、铁英岩类型的矿石,平均含铁37％,经过瀑落式湿式自磨后、用汉弗莱(Humphreys)螺旋选矿机选别,螺旋选矿机
Preface Liberia Bong Mining Company, a joint venture of Liberia, West Germany and Italy, started operations at Bunge Iron Ore in 1965 and produced 4.4 million tonnes of iron ore concentrate in 1969. After the completion of the whole plant, it will produce 2 million tons of pellets and 3 million tons of iron ore concentrate in 1971. The entire process design was handled by Dusseldorf Mining. The beneficiation process was studied at Othfresen, West Gosla, between 1961 and 1962 and detailed results have been reported. Ore is magnetite, hematite, iron ore type of ore, with an average of 37% iron, after a fall-style wet self-grinding, with Humphreys (Humphreys) spiral concentrator election, spiral concentrator