Optimization of flotation process of ilmenite based on Box-Behnken response surface methodology

Dai Chuan; Chen Pan; Sun Wei; Wang Hongbin; Yang Yaohui

doi:10.7513/j.issn.1004-7638.2023.05.001

Volume 44 Issue 5

Oct. 2023

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Dai Chuan, Chen Pan, Sun Wei, Wang Hongbin, Yang Yaohui. Optimization of flotation process of ilmenite based on Box-Behnken response surface methodology[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 1-7. doi: 10.7513/j.issn.1004-7638.2023.05.001

Citation:

Dai Chuan, Chen Pan, Sun Wei, Wang Hongbin, Yang Yaohui. Optimization of flotation process of ilmenite based on Box-Behnken response surface methodology[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 1-7. doi: 10.7513/j.issn.1004-7638.2023.05.001

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Optimization of flotation process of ilmenite based on Box-Behnken response surface methodology

doi: 10.7513/j.issn.1004-7638.2023.05.001

1.
School of Minerals Processing and Bioengineering, Central South University, Changsha 410012, Hunan, China
2.
School of Materials Science and Engineering, Sichuan University, Chengdu 610065, Sichuan, China
3.
Pangang Group Design and Research Institute of Mining Industry Co., Ltd., Panzhihua 617063, Sichuan, China
4.
Institute of Multipurpose Utilization of Mineral Resources, China Geological Survey, Chengdu 610041, Sichuan, China

Received Date: 2023-07-12
Available Online: 2023-11-04
Publish Date: 2023-10-31

Abstract

Abstract

In order to address the complex challenge of ilmenite flotation separation, an extensive single-factor variable test was conducted to investigate the parameters influencing ilmenite flotation and determine the optimal process conditions. To gain a comprehensive understanding of the parameter interactions and optimize the flotation process, a detailed study utilizing response surface methodology was carried out in this research. The results obtained demonstrated the reliability of the response surface model for the TiO₂ concentrate grade and recovery, established based on the experimental data. Notably, the interaction between sulfuric acid and diesel fuel exhibited a significant effect on both the TiO₂ grade and recovery of the concentrate. To validate the findings, a validation test was conducted under the optimized process conditions, consisting of a sulfuric acid dosage of 1.61 kg/t, MOH dosage of 2.82 kg/t, and diesel fuel dosage of 0.81 kg/t. The resulting roughing concentrate exhibited a TiO₂ grade of 32.58% and a recovery of 77.60%, closely aligned with the model predictions. Subsequently, an open circuit flotation test was performed based on the roughing stage, yielding a titanium concentrate with a TiO₂ grade of 47.21% and a recovery of 49.28%.
- ilmenite,
- flotation,
- response surface methodology,
- recovery rate

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References(10)

References

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