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Li C, Yan Y, Fang Z, Luo X, Wang X, Zhou P. Effects of bubbles on particle dynamic behavior and concentration distribution in High-viscosity liquid under negative pressure. J Colloid Interface Sci 2023; 644:315-324. [PMID: 37120880 DOI: 10.1016/j.jcis.2023.04.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 05/02/2023]
Abstract
The vacuum method is a widely adopted technique for eliminating bubbles from polymers containing particles. To investigate the influence of bubbles on the behavior of particles and the concentration distribution in high-viscosity liquids under negative pressure, experimental and numerical methods have been employed. The experimental findings demonstrated a positive correlation between the diameter and rising velocity of bubbles and the negative pressure. As the negative pressure increased from - 10 kPa to - 50 kPa, the position of the region where the particles were concentrated in the vertical direction was elevated. Furthermore, when the negative pressure exceeded - 50 kPa, the particle distribution became sparse and layered locally. The Lattice Boltzmann method (LBM) integrated with the discrete phase model (DPM) was utilized to investigate the phenomenon, and the outcomes revealed that rising bubbles have an inhibitory effect on particle sedimentation, and the extent of inhibition was determined by the negative pressure. In addition, vortexes generated by differences in the rising velocity between bubbles resulted in a particle distribution that was sparse and layered locally. This research provides a reference for achieving desired particle distributions using a vacuum defoaming approach and should be further studied to extend its applicability to suspensions containing particles with different viscosities.
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Affiliation(s)
- Chenghang Li
- State Key Laboratory of High-performance Precision Manufacturing, Department of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ying Yan
- State Key Laboratory of High-performance Precision Manufacturing, Department of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Zikeng Fang
- State Key Laboratory of High-performance Precision Manufacturing, Department of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiang Luo
- State Key Laboratory of High-performance Precision Manufacturing, Department of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xuyue Wang
- State Key Laboratory of High-performance Precision Manufacturing, Department of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ping Zhou
- State Key Laboratory of High-performance Precision Manufacturing, Department of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
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Li W, Huang Z, Wang H, Liu R, Ouyang L, Shuai S, Zhang S, Cheng C, Yu X, He G, Fu W. Froth flotation separation of phosphate ore using a novel hammer-like amidoxime surfactant. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Reis AS, Mendes TF, Petri Júnior I, Barrozo MAS. Influence of bubble size on performance of apatite flotation of different particle sizes. PARTICULATE SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1080/02726351.2023.2170840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Angelica S. Reis
- School of Chemical Engineering, Federal University of Uberlândia, Uberlândia, Brazil
| | - Thessa F. Mendes
- School of Chemical Engineering, Federal University of Uberlândia, Uberlândia, Brazil
| | | | - Marcos A. S. Barrozo
- School of Chemical Engineering, Federal University of Uberlândia, Uberlândia, Brazil
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Numerical simulation and experimental validation for investigating the novel hydraulicbarrier-hydrocyclone in industrial beneficiation process. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wang X, Yuan S, Liu J, Zhu Y, Han Y. Nanobubble-enhanced flotation of ultrafine molybdenite and the associated mechanism. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Aarab I, Derqaoui M, El Amari K, Yaacoubi A, Abidi A, Etahiri A, Baçaoui A. Influence of surface dissolution on reagents’ adsorption on low-grade phosphate ore and its flotation selectivity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zou S, Wang S, Zhong H, Qin W. Hydrophobic agglomeration of rhodochrosite fines in aqueous suspensions with sodium oleate. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.08.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Huang Z, Zhang S, Wang H, Liu R, Cheng C, Liu Z, Guo Z, Yu X, He G, Ai G, Fu W. "Umbrella" Structure Trisiloxane Surfactant: Synthesis and Application for Reverse Flotation of Phosphorite Ore in Phosphate Fertilizer Production. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11114-11120. [PMID: 32936618 DOI: 10.1021/acs.jafc.0c04759] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Phosphorite is generally used in the manufacture of phosphate fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite concentrates efficiently and sustainably has become an urgent problem. In this study, a newly designed trisiloxane surfactant, N-(2-Aminoethyl)-3-aminopropyltrisiloxane (AATS), has been prepared and utilized as an emerging collector for reverse flotation of phosphorite ore. Its collecting ability was compared with the conventional surfactant 1-dodecamine (DDA). In the collector concentration tests, AATS with lower concentrations showed stronger collecting ability for quartz. In the pH tests, AATS always performed better than DDA in the acidic or alkaline condition. In bench-scale flotation experiments, the P2O5 recovery of phosphorite concentrates with 150 g/t AATS was 10.77% higher than that with 300 g/t DDA, which proved that AATS can be applied to the sustainable production of phosphorite concentrates. For a 4000 t/d phosphorite ore processing plant, the profit could be increased 7,014,702.07 USD every year by using AATS as the collector. Therefore, this work provides a promising approach to enhance the production efficiency of phosphate fertilizer and to promote the sustainable development of agriculture.
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Affiliation(s)
- Zhiqiang Huang
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Shiyong Zhang
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Hongling Wang
- Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510650, China
| | - Rukuan Liu
- Hunan Academy of Forestry, Changsha, Hunan 410004, China
| | - Chen Cheng
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Zuwen Liu
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Zhiqun Guo
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Xinyang Yu
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Guichun He
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Guanghua Ai
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
| | - Weng Fu
- School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 34100, China
- School of Chemical Engineering, The University of Queensland, St Lucia, Queensland 4072, Australia
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Li L, Hao H, Yuan Z, Liu Z, Li C. Regulating effects of citric acid and pregelatinized starch on selective flocculation flotation of micro-fine siderite. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113726] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Extraction of Phosphorous from a Phosphorous-Containing Vanadium Titano-Magnetite Tailings by Direct Flotation. Processes (Basel) 2020. [DOI: 10.3390/pr8070874] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, there is 1.42% P2O5 in the P-containing V-Ti magnetite tailings in Miyi Region of China, with the valuable minerals mainly including apatite, and aluminosilicate minerals as the main gangue components. The direction flotation process was used to recover phosphorous from the low-grade phosphorous-bearing V-Ti magnetite tailings. The results showed that an optimized phosphorous concentrate with a P2O5 grade of 31.35% and P2O5 recovery of 88.02% was obtained by flotation process of one roughing, three scavengings, and three cleanings under roughing conditions, which employed pulp pH of 9, grinding fineness of <0.039 mm occupying 90%, flotation concentration of 25%, and dosages of carboxymethylcellulose, oxidized paraffin wax soap, and pine oil of 400 g/t, 300 g/t, and 20 g/t, respectively. Optimized one scavenging, two scavenging, and three scavenging conditions used a pulp pH of 9, and dosages of carboxymethylcellulose, oxidized paraffin wax soap, and pine oil of 200 g/t, 150 g/t, 10 g/t; 100 g/t, 75 g/t, and 5 g/t; and 100 g/t, 75 g/t, and 5 g/t, respectively. Optimized one cleaning, two cleaning, and three cleaning condition dosages of carboxymethylcellulose of 100 g/t, 50 g/t, and 25 g/t, respectively. Study of analysis and characterization of phosphorous concentrate by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) show that most gangue minerals enter the flotation tailings, the main minerals in phosphorous concentrate are apatite, olivine, and feldspar.
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Ostadrahimi M, Farrokhpay S, Gharibi K, Dehghani A. A new empirical model to calculate bubble size in froth flotation columns. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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