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Nakhaei F, Ghodrati S, Hoseinzadeh S, Valipoori Goodarzi H, VandGhorbany O. Combined effect of operating variables on performance and kinetic of lead flotation. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2101007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Fardis Nakhaei
- School of Chemical and Minerals Engineering, North West University, Potchefstroom, South Africa
| | - Saeed Ghodrati
- Department of Mining Engineering, Tarbiat Modares University, Tehran, Iran
| | - Siamak Hoseinzadeh
- Department of Planning, Design, and Technology of Architecture, Sapienza University of Rome, Rome, Italy
| | | | - Omid VandGhorbany
- Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
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Abstract
The way to successfully upgrade a phosphate ore is based on the full understanding of its mineralogy, minerals surface properties, minerals distribution and liberation. The conception of a treatment process consists of choosing the proper operations with an adequate succession depending on the ore properties. Usually, froth flotation takes place in phosphate enrichment processes, since it is cheap, convenient, and well developed. Nevertheless, it is a complex technique as it depends on the mineral’s superficial properties in aqueous solutions. Aspects such as wettability, surface charge, zeta potential, and the solubility of minerals play a basic role in defining the flotation conditions. These aspects range from the reagents type and dosage to the pH of the pulp. Other variables namely particles size, froth stability, and bubbles size play critical roles during the treatment, as well. The overall aim is to control the selectivity and recovery of the process. The following review is an attempt to add to previous works gathering phosphate froth flotation data. In that sense, the relevant parameters of phosphate ores flotation are discussed while focusing on apatite, calcite, dolomite, and quartz as main constituent minerals.
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Parametric Optimization in Rougher Flotation Performance of a Sulfidized Mixed Copper Ore. MINERALS 2020. [DOI: 10.3390/min10080660] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, which is mostly overlooked in the literature. To tackle this issue, the present paper aimed at characterizing the behavior of five key effective factors and their interactions in a sulfidized copper ore. In this context, dosage of collector (sodium di-ethydithiophosphate, 60–100 g/t), depressant (sodium silicate, 80–120 g/t) and frother (methyl isobutyl carbinol (MIBC), 6–10 g/t), pulp pH (7–11) and agitation rate (900–1300 rpm) were examined and statistically analyzed using response surface methodology. Flotation experiments were conducted in a Denver type agitated flotation cell at the rougher stage. The experimental results showed that increasing the pH (from 8 to 10) at low agitation rate (1000 rpm) enhanced the recovery from 80.36% to 85.22%, while at high agitation rate (1200 rpm), a slight declination occurred in the recovery. Meanwhile, increasing the collector dosage at a lower frother value (7 g/t), caused a reduction of about 4.44% in copper recovery owing to the interactions between factors, whereas at a higher frother level (9 g/t), the recovery was almost unchanged. The optimization process was also performed using the goal function approach, and maximum copper recovery of 92.75% was obtained using ~70 g/t collector, 110 g/t depressant, 7 g/t frother, pulp pH of 10 and 1000 rpm agitation rate.
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Oney O, Samanli S, Niedoba T, Surowiak A, Pięta P. Optimization of reagent dosages with the use of response surface methodology and evaluation of test results with upgrading curves in graphite flotation. PARTICULATE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1080/02726351.2017.1356892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ozcan Oney
- Department of Mining Engineering, Usak University, Usak, Turkey
| | - Selcuk Samanli
- Department of Mining Engineering, Usak University, Usak, Turkey
| | - Tomasz Niedoba
- Faculty of Mining and Geoengineering, Department of Environmental Engineering and Mineral Processing, AGH University of Science and Technology, Krakow, Poland
| | - Agnieszka Surowiak
- Faculty of Mining and Geoengineering, Department of Environmental Engineering and Mineral Processing, AGH University of Science and Technology, Krakow, Poland
| | - Paulina Pięta
- Faculty of Mining and Geoengineering, Department of Environmental Engineering and Mineral Processing, AGH University of Science and Technology, Krakow, Poland
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Gruzdeva TV, Ushakov AV, Enkhbat R. A biobjective DC programming approach to optimization of rougher flotation process. Comput Chem Eng 2018. [DOI: 10.1016/j.compchemeng.2017.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ambient Temperature Flotation of Sedimentary Phosphate Ore Using Cottonseed Oil as a Collector. MINERALS 2017. [DOI: 10.3390/min7050065] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Azizi A. Optimization of Rougher Flotation Parameters of the Sarcheshmeh Copper Ore Using a Statistical Technique. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2014.945594] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Shiri S, Delpisheh A, Haeri A, Poornajaf A, Golzadeh B, Shiri S. Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric method. ANALYTICAL CHEMISTRY INSIGHTS 2011. [DOI: 10.4137/aci.s5948b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The present study describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of extremely low concentrations of lead. It is based on flotation of a complex of Pb2+ ions and Alizarin yellow between aqueous and n-hexane interface at pH = 6. The proposed procedure is also applied for determination of lead in both tap water and prepared sea water samples. Beer's Law was obeyed over the concentration range of 3.86 × 10-8 To 8.20 × 10-7 molL-1 (8-170 ngmL-1) with an apparent molar absorptivity of 1.33 × 106 molL-1 cm-1 for a 100 mL aliquot of the water sample. The detection limit (n = 10) was 8.7 × 10-9 molL-1 (1.0 ngmL-1) and the Relative standard deviation (R.S.D), (n = 10) for 7.2 × 10-7 molL-1 (150 ngmL-1) of Pb (II) was 4.36%. A notable advantage of the method is that the determination of Pb (II) is free from the interference of almost all cations and ions found in the environment and waste water samples. The determination of Pb (II) in tap and synthetic seawater samples was also carried out by the present method. The results were satisfactorily comparable so that the applicability of the proposed method was confirmed to the real samples.
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Affiliation(s)
- Sabah Shiri
- Department of Chemistry, Payame Noor University of Ilam, Iran
| | - Ali Delpisheh
- Department of Epidemiology, Ilam University of Medical Science, Ilam, Iran
| | - Ali Haeri
- Department of Pharmacology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | | | - Babak Golzadeh
- Department of Chemistry, Payame Noor University of Amol, Iran
| | - Sina Shiri
- Department of Chemistry, Payame Noor University of Ilam, Iran
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Shiri S, Delpisheh A, Haeri A, Poornajaf A, Golzadeh B, Shiri S. Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric method. ANALYTICAL CHEMISTRY INSIGHTS 2010; 5:47-52. [PMID: 21234287 PMCID: PMC3018889 DOI: 10.4137/aci.s5948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The present study describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of extremely low concentrations of lead. It is based on flotation of a complex of Pb(2+) ions and Alizarin yellow between aqueous and n-hexane interface at pH = 6. The proposed procedure is also applied for determination of lead in both tap water and prepared sea water samples. Beer's Law was obeyed over the concentration range of 3.86 × 10(-8) To 8.20 × 10(-7) molL(-1) (8-170 ngmL(-1)) with an apparent molar absorptivity of 1.33 × 10(6) molL(-1) cm(-1) for a 100 mL aliquot of the water sample. The detection limit (n = 10) was 8.7 × 10(-9) molL(-1) (1.0 ngmL(-1)) and the Relative standard deviation (R.S.D), (n = 10) for 7.2 × 10(-7) molL(-1) (150 ngmL(-1)) of Pb (II) was 4.36%. A notable advantage of the method is that the determination of Pb (II) is free from the interference of almost all cations and ions found in the environment and waste water samples. The determination of Pb (II) in tap and synthetic seawater samples was also carried out by the present method. The results were satisfactorily comparable so that the applicability of the proposed method was confirmed to the real samples.
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Affiliation(s)
- Sabah Shiri
- Department of Chemistry, Payame Noor University of Ilam, Iran
| | - Ali Delpisheh
- Department of Epidemiology, Ilam University of Medical Science, Ilam, Iran
| | - Ali Haeri
- Department of Pharmacology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | | | - Babak Golzadeh
- Department of Chemistry, Payame Noor University of Amol, Iran
| | - Sina Shiri
- Department of Chemistry, Payame Noor University of Ilam, Iran
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