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| Study on the optimization of Iron Removal in Room Temperature for Low-copper Raffinate in Congo (DRC) |
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Received:August 30, 2022
Revised:October 08, 2022
Accepted:October 13, 2022
Published Online:February 23, 2023
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| DOI： |
| KeyWord:Iron Removal, Additives, Catalytic Oxidation, low-copper raffinate |
| Author | Institution |
| FENG Ya-ping |
Norin Mining Limited |
| LI Xiang-liang |
Norin Mining Limited |
| SU Li-feng |
BGRIMM Technology Group |
| DUAN Shuai-kang |
Norin Mining Limited |
| GUO Zong |
BGRIMM Technology Group |
| LIU San-ping |
BGRIMM Technology Group |
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| Abstract: |
| A study on the optimization of iron removal in room temperature by Na2S2O5/O2 catalytic oxidation for low-copper raffinate of a mining company in congo (DRC) was carried out. A kind of additive(BGX)’s influence on the filtration and precipitation ability was studied emphatically. The effect of pH on the iron and manganese precipitation efficiency and cobalt loss rate, and the morphology and composition of iron removal slag were studied by SEM/EDS. Under the optimized conditions, the removal efficiency of iron can reach more than 99.9%, the removal efficiency of manganese is about 83%, and the loss rate of entrained cobalt is 0.95%. The final obtained iron removal slag mainly exists in the form of CaSO4, entrained iron-manganese precipitates and independent iron-manganese hydrate; The additive BGX is beneficial to reduce the entrained loss of cobalt and improve the filtration ability to a certain extent. |
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