A review of characterization techniques of heterocoagulation between mineral particles in mineral separation process

Hu, Pengfei; Li, Qiang; Liang, Long

doi:10.1016/j.seppur.2021.119699

Cited by 11 publications

(5 citation statements)

References 80 publications

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“…The DLVO theory, a classic theory used to explain the interactions between particles and their aggregation/dispersion in water, has been used to understand the phenomenon of slime coating. − Based on the DLVO theory, , the total energy V T D between mineral particles can be calculated as follows: V normalT normalD = V normalW + V normalE where V T D , V W , and V E are the total energy, Van der Waals energy, and electrostatic energy, respectively. However, the EDLVO theory can better explain the aggregation and dispersion behavior of mineral particles in the presence of flotation reagents. , For fluorapatite and dolomite in a NaOL solution, the EDLVO theory was used to calculate the interactions, and the total energy ( V T ED ) can be described as V normalT ED = V normalW + V normalE + V normalH where V H represents hydrophobic or hydration interaction.…”

Section: Methodsmentioning

confidence: 99%

Interaction Behavior between Coarse and Fine Particles in the Reverse Flotation of Fluorapatite and Dolomite

Huang,

Zhang

2023

Langmuir

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Section: Methodsmentioning

confidence: 99%

Interaction Behavior between Coarse and Fine Particles in the Reverse Flotation of Fluorapatite and Dolomite

Huang,

Zhang

2023

Langmuir

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“…Figure 5 shows the interaction mechanism of kaolinite with chalcopyrite. The heterocoagulation phenomenon has been widely studied in the literature, as stated by Yepsen et al [32] and Hu et al [33].…”

Section: Flotation Of Chalcopyrite Using the Treated Waste Brinementioning

confidence: 99%

Using Waste Brine from Desalination Plant as a Source of Industrial Water in Copper Mining Industry

et al. 2022

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One of the main challenges of seawater desalination is a large volume of waste brine production that is commonly discharged into the sea and may threaten the marine ecosystem. This is critical in regions where conventional water resources are scarce and desalinated seawater is an alternative to meet water demand. Especially in regions where the mining industry is a key player in the economic development. The novelty of this research consists in the determination of the potential use of waste brine, discharged from the reverse osmosis process, as a source of industrial water in copper mining industry. To enable the waste brine applicability, there should be reduced calcium and magnesium ions concentration for improving copper recovery in the froth flotation process. The flotation tests were conducted in a batch cell with synthetic minerals composed of chalcopyrite, kaolinite, and quartz using different water qualities. The results showed that treated waste brine significantly improved copper recovery compared to untreated waste brine and seawater. Similar copper recovery was achieved when flotation test was performed with tap water and treated waste brine. Therefore, treated waste brine could provide a suitable water quality required in the froth flotation process as an alternative non-conventional water resource.

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“…According to the classical DLVO theory, whether a sol can exist stably under certain conditions depends on the potential energy of the interaction between the colloidal particles. The total potential energy equals the sum of the van der Waals attraction potential energy and the electrostatic repulsion potential energy caused by the electric double layer (Hu et al, 2021). Based on this theory, the total potential energy of the two slurry systems can be calculated, and the anti-agglomeration ability between the particles of the two minerals in the flotation process can be predicted.…”

Section: Dlvo Theoretical Analysismentioning

confidence: 99%

Study on the mechanism of the difference in flotation performance between fine-grained crystalline SiO2 and amorphous SiO2

Ma,

Li,

Wang

et al. 2023

Physicochem. Probl. Miner. Process.

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Numerous minerals found in nature contain silica, including quartz, cristobalite, opal, etc. They have the same chemical composition but different crystal structures, and this phenomenon is called “polymorphism” in mineralogy. For these polymorphic and multi-like minerals, in the flotation process, will it directly or indirectly affect the flotation effect. Based on this, this study mainly explores the difference between crystalline SiO2 and amorphous SiO2 in flotation. In this study, two crystal forms of SiO2 were subjected to flotation and adsorption capacity tests. FTIR, other test techniques, the chemical calculation of the flotation solution, and the theoretical calculation of the DLVO can all be used to provide an explanation. Finally, in the flotation experiment, the feedbacks of the two minerals to the change of the pH value of the pulp and the change of the concentration of the reagent are different. Through the comprehensive analysis of the adsorption capacity test and semi-quantitative calculation of the infrared spectrum, the adsorption capacity of crystalline SiO2 to drugs is about 23% higher than amorphous SiO2. Furthermore, during the flotation process, the amorphous SiO2 particles will agglomerate together and entrain into the foam through, resulting in concentrate pollution. So amorphous SiO2 will undoubtedly increase the difficulty of flotation.

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A review of characterization techniques of heterocoagulation between mineral particles in mineral separation process

Cited by 11 publications

References 80 publications

Interaction Behavior between Coarse and Fine Particles in the Reverse Flotation of Fluorapatite and Dolomite

Interaction Behavior between Coarse and Fine Particles in the Reverse Flotation of Fluorapatite and Dolomite

Using Waste Brine from Desalination Plant as a Source of Industrial Water in Copper Mining Industry

Study on the mechanism of the difference in flotation performance between fine-grained crystalline SiO<sub>2</sub> and amorphous SiO<sub>2</sub>

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