The study uses flotation process optimization to explore how to improve cop-per recovery from the Kakula deposit.Given the variability in ore grade,achiev-ing high recovery rates and maintaining an optimal copper grad...The study uses flotation process optimization to explore how to improve cop-per recovery from the Kakula deposit.Given the variability in ore grade,achiev-ing high recovery rates and maintaining an optimal copper grade is critical.This research employs the Taguchi experimental design and multi-objective optimization to determine the most effective flotation parameters.Key factors investigated include solid mass percentage,air flow rate,particle size,frother dosage(HYDOFROTH),collector dosage(SIBX),and secondary collector dosage(AERO).The Taguchi method determined optimal conditions for max-imum copper recovery at 96.4%,with 14.2%copper content in concentrate.The multi-objective approach provided a more balanced result:95.4%copper recov-ery,48.0%mass pull,12.2%copper content.Comparing the results obtained by these two methods,it is noted that the multi-objective approach contributes more to the minimisation of silica,24%versus 35.4%.ANOVA analysis revealed that collector dosage(SIBX)was the most significant factor influencing copper recovery.At the same time,solid mass percentage had the most significant im-pact on copper content,mass pull,and silica yield.The findings provide practi-cal insights for improving the flotation performance of the Kakula deposit,en-suring higher efficiency and better concentrate quality.展开更多
This study investigates the optimization of Jameson Cell performance at the Kamoa-Kakula concentrator through dilution cleaning tests.The experiments aimed to evaluate the effects of frothers(Hydrofroth 5008 and Flota...This study investigates the optimization of Jameson Cell performance at the Kamoa-Kakula concentrator through dilution cleaning tests.The experiments aimed to evaluate the effects of frothers(Hydrofroth 5008 and Flotanol)and a collector-frother combination(Sodium Isobutyl Xanthate with Senfroth 522)on flotation efficiency.Bench-scale flotation tests were carried out on feed samples from Jameson Cells N˚1 and N˚2 under controlled laboratory conditions,with systematic dilution cleaning across three stages.Results showed that Hydrofroth 5008 moderately increased copper recovery but at the expense of concentrate grade due to enhanced gangue entrainment.Conversely,Flotanol significantly improved both grade and recovery at optimized dosages,although excessive addition decreased selectivity.The combined use of Sodium Isobutyl Xanthate and Senfroth 522 yielded the most notable improvements,achieving copper recoveries above 95%with concentrate grades up to 65%Cu,while reducing copper losses in tailings.These findings highlight the importance of reagent selection and dosage control in balancing recovery and concentrate quality,ultimately providing insights for optimizing Jameson Cell operations in large-scale copper concentrators.展开更多
文摘The study uses flotation process optimization to explore how to improve cop-per recovery from the Kakula deposit.Given the variability in ore grade,achiev-ing high recovery rates and maintaining an optimal copper grade is critical.This research employs the Taguchi experimental design and multi-objective optimization to determine the most effective flotation parameters.Key factors investigated include solid mass percentage,air flow rate,particle size,frother dosage(HYDOFROTH),collector dosage(SIBX),and secondary collector dosage(AERO).The Taguchi method determined optimal conditions for max-imum copper recovery at 96.4%,with 14.2%copper content in concentrate.The multi-objective approach provided a more balanced result:95.4%copper recov-ery,48.0%mass pull,12.2%copper content.Comparing the results obtained by these two methods,it is noted that the multi-objective approach contributes more to the minimisation of silica,24%versus 35.4%.ANOVA analysis revealed that collector dosage(SIBX)was the most significant factor influencing copper recovery.At the same time,solid mass percentage had the most significant im-pact on copper content,mass pull,and silica yield.The findings provide practi-cal insights for improving the flotation performance of the Kakula deposit,en-suring higher efficiency and better concentrate quality.
文摘This study investigates the optimization of Jameson Cell performance at the Kamoa-Kakula concentrator through dilution cleaning tests.The experiments aimed to evaluate the effects of frothers(Hydrofroth 5008 and Flotanol)and a collector-frother combination(Sodium Isobutyl Xanthate with Senfroth 522)on flotation efficiency.Bench-scale flotation tests were carried out on feed samples from Jameson Cells N˚1 and N˚2 under controlled laboratory conditions,with systematic dilution cleaning across three stages.Results showed that Hydrofroth 5008 moderately increased copper recovery but at the expense of concentrate grade due to enhanced gangue entrainment.Conversely,Flotanol significantly improved both grade and recovery at optimized dosages,although excessive addition decreased selectivity.The combined use of Sodium Isobutyl Xanthate and Senfroth 522 yielded the most notable improvements,achieving copper recoveries above 95%with concentrate grades up to 65%Cu,while reducing copper losses in tailings.These findings highlight the importance of reagent selection and dosage control in balancing recovery and concentrate quality,ultimately providing insights for optimizing Jameson Cell operations in large-scale copper concentrators.
