The Effect of Seaweed Glue in the Separation of Copper–Molybdenum Sulphide Ore by Flotation
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Response Surface Methodology
2.3. Flotation Procedure
2.4. Adsorption Experiments
2.5. Zeta Potential Measurements
2.6. FT-IR Spectroscopy Experiments
3. Results and Discussion
3.1. Model Fittings and Statistical Analysis
3.2. Interactions among the Factors and Optimization Results
3.3. Contrast Experiments of Depressant
3.4. Adsorption Studies
3.5. Zeta Potential Tests
3.6. FT-IR Spectra Analysis
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Independent Variables | Codes | Ranges and Levels | ||
---|---|---|---|---|
−1 | 0 | 1 | ||
Initial pH | X1 | 3 | 50 | 10 |
SEG dosage (mg/L) | X2 | 7.5 | 175 | 55 |
AX dosage (mg/L) | X3 | 12 | 300 | 100 |
Run | Factor 1 A: pH | Factor 2 (mg/L) B: SEG | Factor 3 (mg/L) C: AX | Response 1 (%) Chalcopyrite Recovery | Response 2 (%) Molybdenite Recovery |
---|---|---|---|---|---|
1 | 12 | 300 | 55 | 66.21 | 21.01 |
2 | 12 | 175 | 10 | 73.32 | 16.21 |
3 | 7.5 | 175 | 55 | 84.76 | 22.31 |
4 | 7.5 | 175 | 55 | 84.34 | 22.19 |
5 | 12 | 50 | 55 | 82.98 | 37.16 |
6 | 12 | 175 | 100 | 79.12 | 29.56 |
7 | 7.5 | 300 | 10 | 69.98 | 4.87 |
8 | 3 | 300 | 55 | 86.78 | 12.98 |
9 | 7.5 | 50 | 10 | 85.98 | 25.98 |
10 | 7.5 | 175 | 55 | 85.34 | 22.10 |
11 | 3 | 50 | 55 | 98.89 | 27.01 |
12 | 7.5 | 175 | 55 | 84.89 | 21.21 |
13 | 7.5 | 175 | 55 | 85.21 | 21.54 |
14 | 7.5 | 50 | 100 | 89.34 | 34.99 |
15 | 3 | 175 | 10 | 95.21 | 21.01 |
16 | 7.5 | 300 | 100 | 71.16 | 21.42 |
17 | 3 | 175 | 10 | 93.65 | 5.98 |
Source | F Value (Cu/Mo) | Prob > F (Cu/Mo) | |
---|---|---|---|
Mode | 1313/138.0 | <0.0001 | |
X1-pH | 1491/22.87 | <0.0001/0.002 | |
X2-SEG | 1031/120.5 | <0.0001 | |
X3-AX | 19.3/75.3 | 0.003/<0.0001 | |
X12 | 16.1/1.25 | 0.005/0.32 | |
X13 | 27.3/3.13 | 0.001/0.12 | |
X23 | 2.39/14.43 | 0.166/0.006 | |
Lack of fit (F) | 3.28/4.21 | Lack of fit (P) | 0.056/0.030 |
R2 | 0.99/0.99 | Radj2 − Rpred2 | 0.027/0.066 |
C.V.% | 0.84/4.60 | Adeq precisor | 65.21/43.73 |
Initial pH | SEG Dosage (mg/L) | AX Dosage (mg/L) | Cu/Mo Recovery (%) | |
---|---|---|---|---|
Predicted Value | Experimental Value | |||
4.07 | 197.38 | 16.32 | 95.11/7.99 | 93.21/6.98 |
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Chen, Z.; Gu, G.; Li, S.; Wang, C.; Zhu, R. The Effect of Seaweed Glue in the Separation of Copper–Molybdenum Sulphide Ore by Flotation. Minerals 2018, 8, 41. https://doi.org/10.3390/min8020041
Chen Z, Gu G, Li S, Wang C, Zhu R. The Effect of Seaweed Glue in the Separation of Copper–Molybdenum Sulphide Ore by Flotation. Minerals. 2018; 8(2):41. https://doi.org/10.3390/min8020041
Chicago/Turabian StyleChen, Zhixiang, Guohua Gu, Shuangke Li, Chongqing Wang, and Renfeng Zhu. 2018. "The Effect of Seaweed Glue in the Separation of Copper–Molybdenum Sulphide Ore by Flotation" Minerals 8, no. 2: 41. https://doi.org/10.3390/min8020041