Abstract: In order to promote the sustainable development of copper-cobalt ore resources in Congo (DRC) and the resource utilization of mining solid waste，aiming at the problems of large output of mining solid waste，high environmental risk，insufficient recovery of valuable metals and unclear adaptability of ores with different oxidation rates to resource utilization technology in this area，the geological occurrence characteristics，mining status and solid waste generation mechanism，physical and chemical properties and environmental risks of the local copper-cobalt ore belt are systematically reviewed.The diversified mining， mineral processing and smelting process paths based on ore oxidation rate are analyzed. The research prog⁃ ress and application examples of solid waste recycling technologies such as heap leaching，bioleaching， synergistic leaching and slag beneficiation are sorted out，and the frontier directions of biotechnology，cir⁃ cular economy and intelligent management are discussed.The research results show that through technology integration and policy guidance，the efficient recovery of copper and cobalt in solid waste (the leaching rate of heap leaching copper is more than 80%，and the recovery rate of synergistic leaching copper is more than 85%) and the bulk consumption of solid waste can be realized，and the green low-carbon transformation of mining industry can be promoted.The oxidation rate of ore is the key factor to determine the characteristics of solid waste and the choice of resource technology path. The combined process of beneficiation and metal⁃ lurgy can effectively improve the recovery efficiency of valuable metals from refractory smelting slag. Circu⁃ lar economy and intelligent technology can provide an important direction for the large-scale promotion of comprehensive utilization of solid waste.

Key words: copper cobalt ore, solid waste, comprehensive recovery, recycling economy, resource uti? lization