Chemometric Optimisation of a Copper Sulphide Tailings Flocculation Process in the Presence of Clays
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.1.1. Flocculation Experiments
2.1.2. Settling Tests
2.1.3. Zeta Potential
2.2. Chemometric Analysis
3. Results and Discussion
3.1. Settling Rate
3.2. Relationship between Chord Length and Settling Rate
3.3. Turbidity of the Supernatant
3.4. Chemometric Analysis for Optimum Flocculation Response
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Albite | Chamosite | Quartz | Muscovite | Hematite | Vermiculite |
---|---|---|---|---|---|
39.1 | 25.5 | 20.1 | 9.4 | 5.0 | 1.1 |
Exp | Coded Values | Experimental Values | |||||
---|---|---|---|---|---|---|---|
[-] | [-] | [-] | [g/t] | [rpm] | [1/s] | [%] | |
1 | 0 | 0 | 0 | 30.0 | 135 | 51.2 | 10.0 |
2 | 1 | 0 | 0 | 35.0 | 135 | 51.2 | 10.0 |
3 | 0.5 | 0.866 | 0 | 32.5 | 191 | 86.4 | 10.0 |
4 | 0.5 | 0.289 | 32.5 | 154 | 62.3 | 13.3 | |
5 | 0 | 0 | 25.0 | 135 | 51.2 | 10.0 | |
6 | 0 | 27.5 | 79 | 22.8 | 10.0 | ||
7 | 27.5 | 116 | 40.9 | 6.7 | |||
8 | 0.5 | 0 | 32.5 | 79 | 22.8 | 10.0 | |
9 | 0.5 | 32.5 | 116 | 40.9 | 6.7 | ||
10 | 0 | 0.577 | 30.0 | 173 | 74.0 | 6.7 | |
11 | 0.866 | 0 | 27.5 | 191 | 86.4 | 10.0 | |
12 | 0.289 | 0.816 | 27.5 | 154 | 62.3 | 13.3 | |
13 | 0 | 0.816 | 30.0 | 97 | 31.4 | 13.3 |
Descriptor | Tailing | Tailing/Kaoilinite |
---|---|---|
Min , m/h | 72 | 15.6 |
Max , m/h | 153 | 64.7 (*) |
Min Turbidity, NTU | 491 | 100 |
Max Turbidity, NTU | 810 | 135 |
Optimum values: | ||
SR, m/h | 150 | 51.5 |
Turbidity, NTU | 491 | 94.1 |
Desirability | 0.98 | 0.86 |
, g/t | 35 | 35 |
G, 1/s | 70 | 23 |
, % | 6.8 | 12.6 |
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Castillo, C.; Ihle, C.F.; Jeldres, R.I. Chemometric Optimisation of a Copper Sulphide Tailings Flocculation Process in the Presence of Clays. Minerals 2019, 9, 582. https://doi.org/10.3390/min9100582
Castillo C, Ihle CF, Jeldres RI. Chemometric Optimisation of a Copper Sulphide Tailings Flocculation Process in the Presence of Clays. Minerals. 2019; 9(10):582. https://doi.org/10.3390/min9100582
Chicago/Turabian StyleCastillo, Claudia, Christian F. Ihle, and Ricardo I. Jeldres. 2019. "Chemometric Optimisation of a Copper Sulphide Tailings Flocculation Process in the Presence of Clays" Minerals 9, no. 10: 582. https://doi.org/10.3390/min9100582