Oil-water Separation & Organic Solvent Recovery for Copper-rich Solution, Kolwezi, Congo
CNIT, China Nonferrous Metal Mining (Group) Co., Ltd.
Katanga, Democratic Republic of Congo
Separate oil from copper electrowinning solution, to recover organic solvent and improve copper quality.
• Flow Rate: 3X240cum/hour
• Inlet Water Characteristic & Outlet Requirement:
Inlet water (mg/L) : oil content (petroleum) ≤100; ≤200;
Outlet water (mg/L):  oil≤5; oil≤10;
Sulfuric acid: 100-200 g/l
working hours: 24 hours/day
• Remove suspended solids and separate oil from copper-rich solution to meet customer’s requirement of no more than 5ppm.
• Recover valuable organic solvent, recycle water and improve product quality of copper.
LAND ECO has designed and supplied the oil-water separation systems for the subject project located at Katanga, Democratic Republic of Congo. The oil and SS contained in the copper-rich liquid could observably affect the product quality during electrowinning, which might cause to “organic burning spot” or color-changing on product. If the oil content of copper-rich liquid can be controlled under 10 mg/L, or even less than 5mg/L, the product quality of copper would be apparently improved.
After study on the liquid and subject copper production process, LAND ECO has designed and supplied the customized system, with the combination of ESPA filters to remove the SS and GAGS oil-water separator to separate oil, which perfectly lower the SS and oil content.
• The oil removal is up to 98%, which meets the customer’s requirement of less than 5 ppm.
• Recover valuable organic solvent, and recycle water.
• Improve the quality of copper.
• Large handling capacity to manage different working condition
• Simple operation and low maintenance, with no additional dosage.
• LAND ECO’s oil-water separation systems have been proven to be capable of working in various conditions.