1) Strengthen geological prospecting, and carry out work around Luoen Group according to modern advanced geophysical prospecting technology and existing metallogenic theory. Geological prospecting in Zambia and Congo (DRC) has a history of 100 years, and detailed geological work has been done near the main mines in the copper belt area. Using shallow wells, auger drills and other means to carry out surface geochemical exploration played an important role in the early prospecting work. At present, the probability of finding a large copper-cobalt deposit in the shallow part of the surface is very small, but there is still great prospecting potential in the deep part. In order to find the favorable position for the formation of deep copper-cobalt deposits, it is necessary to explore the basement morphology with the help of modern advanced geophysical instruments. For example, in Chambishi-Nkana metallogenic basin, the west ore body of Chambishi copper mine is 3 kilometers away from Pitanda mine, and the drilling engineering of Pitanda mine reveals ancient basement uplift and reef dolomite. It is speculated that the southeast of Pitanda mine may be a favorable place for mineralization and may become a new prospecting target (see Figure 3-3).
2) Actively develop high-grade oxide ore resources in Congo (Gold). Congo (gold) oxide ore resources are richer than Zambia, with the characteristics of shallow burial, high grade and large scale, which is suitable for open-pit mining and hydrometallurgy to produce electrodeposited copper products. In terms of mine investment and development, Congo (DRC) has the advantages of rich resources, high grade, low development degree and low labor cost. However, the main risks are poor policy stability, weak infrastructure conditions, power shortage, difficulty in accurately predicting and controlling the investment scale, and difficulty in reaching the standard and successfully putting into production. To invest in the mining industry in the Democratic Republic of Congo, small and medium-sized projects close to major cities should be chosen as the first choice for early investment.
3) Strengthen the recovery and utilization of cobalt resources. The huge cobalt resources in the metallogenic belt of Central Africa have not been well developed and utilized, and most mines have not yet separated copper and cobalt. Early mining mines in history almost only produced copper concentrate, and the associated cobalt resources were not utilized, resulting in a large number of cobalt resources being abandoned in mine tailings and smelting slag; In addition, due to the problems of original process and recovery rate, these tailings and slag also contain high copper grade (usually 0.5% ~ 1.3%). Therefore, under the current technical and market conditions, the development and recovery of cobalt and copper resources in tailings and slag have good economic benefits. For example, China Nonferrous Mining Group Lu 'anxia Company has begun to study how to recover cobalt resources from smelting slag in this area through technical research, and separate copper and cobalt in mineral processing to improve resource utilization and production efficiency; Domestic private enterprises bought the smelting slag of Nkana copper smelter in Mopani copper mine, and prepared to extract cobalt resources from it. The cobalt grade is expected to reach 0.4%. In addition, the existing production projects should also strengthen technical research, realize the separation of copper and diamond and the recovery of cobalt resources, and improve efficiency.