桂西堆积型铝土矿伴生钛资源潜力及综合回收利用
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TD952;P618.45;P618.47

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国家重点研发计划项目(2022YFC2903405); 自然资源部新一轮找矿突破战略行动科技支撑项目(ZKKJ202404); 广西地矿局前期科研项目(GXDK202428, GXGS202508); 广西新一轮找矿突破战略行动项目(桂自然资办〔2024〕129号)


Potential and comprehensive recovery and utilization of associated titanium resources in accumulation-type bauxite of western Guangxi
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    摘要:

    铝土矿中常伴生有Ga、Ti等多种关键金属元素,对桂西堆积型铝土矿伴生钛资源潜力及综合回收利用情况进行研究,有助于矿产资源的高效利用。本文系统收集了桂西主要堆积型铝土矿资源储量数据和矿石质量特征,详细调研了区内主要铝企业对伴生钛资源的利用现状,重点对广西平果市太平外围铝土矿区开展了工艺矿物学和矿石加工选冶性能试验,提出了综合回收利用工艺。研究表明,桂西堆积型铝土矿石中伴生钛资源储量丰富,TiO2平均含量为3%~4%;矿石中的TiO2主要以锐钛矿形式存在,在氧化铝生产过程中难以综合回收利用,使得TiO2在赤泥中得到进一步富集,其平均含量约6%;可通过对赤泥先除Ca、提Fe,再提Ti、Sc、REE等元素的流程,完成对Ti等关键金属资源的综合回收利用。

    Abstract:

    Bauxite is often associated with various critical metal elements such as gallium (Ga) and titanium (Ti). Studying the potential and comprehensive recovery and utilization of associated titanium resources in the accumulation-type bauxite in western Guangxi is conducive to the efficient utilization of mineral resources. This paper systematically collected the resource reserve data and ore quality characteristics of major accumulation-type bauxite deposits in western Guangxi, conducted a detailed survey on the current status of associated titanium resource utilization by major aluminum enterprises in the region, and focused on carrying out process mineralogy and ore beneficiation & metallurgical performance tests in the bauxite mining area on the periphery of Taiping, Pingguo City, Guangxi. On this basis, a comprehensive recovery and utilization process was proposed.The research shows that the associated titanium resources in the accumulation-type bauxite in western Guangxi are abundant, with the average content of titanium dioxide (TiO2) ranging from 3% to 4%. The TiO2 in the ore mainly exists in the form of anatase, which is difficult to be comprehensively recovered and utilized during the alumina production process. As a result, TiO2 is further enriched in red mud, with its average content reaching approximately 6%. The comprehensive recovery and utilization of critical metal resources such as TiO2 can be achieved through a process that first removes calcium and extracts iron from red mud, followed by extracting elements including titanium, scandium (Sc), and rare earths.

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孟祥仑,徐海棚,姚双秋,等, 2025. 桂西堆积型铝土矿伴生钛资源潜力及综合回收利用[J]. 岩石矿物学杂志, 44(6):1433~1444.
MENG Xiang-lun, XU Hai-peng, YAO Shuang-qiu, et al, 2025. Potential and comprehensive recovery and utilization of associated titanium resources in accumulation-type bauxite of western Guangxi[J]. Acta Petrologica et Mineralogica, 44(6): 1433~1444.

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  • 收稿日期:2024-09-19
  • 最后修改日期:2024-12-27
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  • 在线发布日期: 2025-11-21
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