Innovative Practices in High-Efficiency Beneficiation Technology for Low-Grade Copper Ore With global rich copper resources dwindling, the development and utilization of low-grade copper ore has become a core direction for ensuring copper resource supply. However, low-grade copper ore presents challenges such as fine particle size distribution, high ore hardness, difficulty in liberating individual particles, and susceptibility to over-grinding. Furthermore, associated precious metals in some ore bodies are difficult to recover effectively. Traditional beneficiation processes struggle to balance recovery rate, concentrate grade, and overall efficiency, posing numerous challenges to the industry's development.

XKJ GROUP focuses on process innovation, equipment upgrades, and comprehensive resource recovery, creating customized technology pathways. Through dual verification in laboratories and industrial trials, it provides end-to-end beneficiation solutions for different types of low-grade copper ore development. For finely distributed, high-hardness porphyry-type low-grade copper ore, a short-process technology + intelligent equipment upgrade solution has been launched. This solution replaces multiple small devices with ultra-large flotation machines, shortening the main process to achieve energy saving, consumption reduction, and efficiency improvement. Simultaneously, the core structure of the flotation machine is optimized, equipped with an intelligent foam image detection system, and combined with new high-efficiency collectors to enhance the collection capacity of fine-grained copper minerals. In industrial trials, this technology increased copper recovery in the roughing stage by 1.02 percentage points and the overall process recovery by 0.92 percentage points.

Addressing the industry pain point of copper loss due to fine-grained slime generated during grinding, XKJ GROUP innovatively adopted a pre-classification flotation process. This process first classifies the mill feed, separating the -74μm particle size, and then only grinds and combines the +74μm coarse particles for flotation, reducing slime generation at the source. This process increases copper recovery by 1.32 percentage points compared to traditional processes, and reduces the -10μm copper loss rate in tailings from 5.06% to 3.74%, significantly improving resource utilization.