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在概要分析我国铝土矿资源特征及其面临的问题的基础上 ,指出研究经济可行的选矿脱硅技术 ,以高铝硅比的精矿用拜耳法生产氧化铝是迎接挑战的对策之一。“选矿脱硅 -拜耳法生产氧化铝”新工艺的工业试验已经获得成功 ,深入完善此工艺加速其产业化将为我国氧化铝工业的生存与发提供强有力的技术支持。
On the basis of a brief analysis of the characteristics of bauxite resources in China and the problems they face, it is pointed out that it is one of the countermeasures to meet the challenge of economically feasible beneficiation and desalination technologies and to produce alumina by Bayer process with high alumina / silica ratio. The industrial test of the new process of “desiliconization beneficiation - Bayer alumina production” has been successfully carried out. To thoroughly perfect this process and accelerate its industrialization will provide strong technical support for the survival and development of China’s alumina industry.