Progress in the high-value utilization of graphite tailings and environmental benefit assessment:current status,challenges,and prospects

KANG Kejia; WANG Lizhi; LI Guanglai; GUO Ying; LI Xinyu; LIU Liming; HUANG Linlin; LI Lixin

doi:10.26940/j.cnki.10-1912/TD.2532

Abstract：Aiming at green mining and dual-carbon goals,based on existing research and engineering reports,the physical characteristics of graphite tailings,their traditional utilization,and high-value utilization directions are systematically re-viewed.It establishes an assessment framework comprising characteristics,technology,performance,benefits,and risks,and conducts a cross-pathway review incorporating life cycle and carbon footprint perspectives.The results indicate that building materials and land engineering applications have large-scale consumption capacity but limited value-added bene-fits and emission reduction per unit.Functional materials and energy materials show higher potential,though development remains largely at the laboratory and pilot-scale verification stage.Heavy metal leaching and residual reagent migration under acidic conditions are identified as key environmental risks,with insufficient long-term in-situ evidence available.In-dustrialization advancement is constrained by factors such as standard alignment and a scarcity of demonstration projects.Under unified fields in tables and figures,comparable discussions are conducted,applicable boundaries and common chal-lenges are summarized,process modifications and performance impacts of representative pathways are categorized and compared,and phased implementation strategies and key application scenarios are proposed in the conclusion.The contri-bution lies in proposing and applying a five-dimensional assessment framework,integrating scattered evidence to form a structured understanding applicable to engineering screening and policy analysis.