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<p>Based on a comprehensive analysis of the mineralogical characteristics of typical poly-metallic ore from Chengde, this study designed and validated an integrated process scheme involving "coarse grinding early discard – staged grinding and sorting – flotation separation – full grain size recovery." This process achieves high-precision separation and recovery of iron, copper, and phosphorus elements. The final products include high-grade iron concentrate (total iron content: 65.13%, recovery rate: 49.56%), copper concentrate (copper content: 12.02%, recovery rate: 48.07%), and phosphorus concentrate (P<sub>2</sub>O<sub>5</sub> content: 30.10%, recovery rate: 91.10%). Additionally, gangue and tailings are reprocessed to produce construction-grade aggregate materials, forming a holistic system for multi-element extraction and residual material valorization. This technological framework significantly enhances the comprehensive utilization efficiency of mineral resources, generating substantial economic and ecological benefits.</p>

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Comprehensive Utilization Technology and Application of Total Resources from Ultra-Low-Grade Vanadium–Titanium Magnetite: A Case Study of Chengde, China

  • 期刊论文

  • 发表日期：

    2026年5月21日

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  • Zhaowang Liu,
  • Jiajing Dong,
  • Leichao Yan,
  • Guoying Han,
  • Liang Zhang

摘要

Based on a comprehensive analysis of the mineralogical characteristics of typical poly-metallic ore from Chengde, this study designed and validated an integrated process scheme involving "coarse grinding early discard – staged grinding and sorting – flotation separation – full grain size recovery." This process achieves high-precision separation and recovery of iron, copper, and phosphorus elements. The final products include high-grade iron concentrate (total iron content: 65.13%, recovery rate: 49.56%), copper concentrate (copper content: 12.02%, recovery rate: 48.07%), and phosphorus concentrate (P2O5 content: 30.10%, recovery rate: 91.10%). Additionally, gangue and tailings are reprocessed to produce construction-grade aggregate materials, forming a holistic system for multi-element extraction and residual material valorization. This technological framework significantly enhances the comprehensive utilization efficiency of mineral resources, generating substantial economic and ecological benefits.