Core Resources is pleased to share the excellent outcomes of recent metallurgical test work completed on behalf of Prospect Resources (ASX:PSC) for its Mumbezhi Copper Project in north-western Zambia.
View the full ASX announcement here or read the summary below.
The program, conducted at our metallurgical testing laboratory in Brisbane, focused on fresh sulphide samples from the Nyungu Central deposit. Our team designed and executed a flotation-based testwork program that returned outstanding results using a simple, conventional flowsheet, reflecting the mineralogy common to other operations in the Zambian Copper Belt.
Key outcomes from the testwork include:
- A copper concentrate grading 24.6% Cu and 9,000 ppm Co with a recovery of 96.2% Cu after a single cleaning stage
- A higher-grade concentrate of 33.3% Cu and 2,800 ppm Co at 90.1% Cu recovery after two cleaning stages
- Confirmation that a coarser primary grind size of up to 250 µm is achievable with minimal loss in copper recovery—presenting opportunities to lower capital and operating costs
- Demonstrated that relatively high graphitic carbon levels (up to 4.8% TGC) do not compromise product quality with the correct reagent scheme
These results confirm the suitability of Nyungu Central’s sulphide mineralisation for a simple flotation process and mark solid progress in the project’s metallurgical process design. Ongoing testwork on transitional material and samples from the nearby Kabikupa deposit is expected to be completed in the coming months.
Want to learn more about how Core supports innovative copper and critical minerals projects like Mumbezhi?
Visit our Metallurgical Testwork Services page or get in touch with our team to discuss how we can support your project with high-quality, independent metallurgical testwork and process development expertise.
