Performance evaluation of Fe-based water treatment sludge …
This research attempted to investigate the feasibility of using drinking water treatment sludge (ferric chloride sludge, FCS) as a coagulant for turbidity removal from iron ore tailings slurry. The evaluation was performed in two phases. In the first phase, the one factor at a time (OFAT) approach was used to study the effects of FCS dosage, initial …
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Investigations on different starches as depressants for iron ore
Reverse flotation studies indicated ∼65% Fe with 85% recovery. Four different starches, namely soluble starch, corn starch, potato starch and rice starch with different characteristics have been studied as depressants for hematite in cationic flotation using dodecylamine as the collector. Surface charge measurement and Fourier …
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Optimisation of selective flocculation of ultrafine iron ore
A laboratory scale selective flocculation process capable of recovering iron oxide from a sample of ultrafine (less than 10 μm) iron ore tailings containing kaolinite as the main gangue mineral has been developed. Experiments were carried out (i) to select the most appropriate flocculant from a large range of commercially available starches ...
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Rheological characterization and performance of flocculants …
This study highlights the utilization of different flocculants in the settling of Iron Ore Tailings slurry (IOTs) in a tailings pond. Performances of different flocculants such as …
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Flocculation of Alumina Rich Iron Ore Samples
assaying 66.2% Fe and <2% Al with a yield of 67.4% by weight (with a recovery of 77% of iron. values) using PVP (1 ppm dosage) and corn starch (20 ppm) for one of the slim e sample (Sample. I) as ...
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Towards a Sustainable and Enhanced Iron Ore Recovery: Bio …
2.1.2 Dust and Particulate Matter Emissions. ... 3.3 Bio-flocculation of Iron Ore. Bio-flocculation is an iron ore beneficiation method utilizing microbes, bacteria, algae, or fungi to aggregate and flocculate fine iron ore particles for separation in slurries enriched with cultures. ... (2019) A rheological study of the bioleaching process of ...
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A critical review on metallurgical recovery of iron from iron ore
Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of iron ores and the conditions during beneficiation, it is inevitable that approximately 2.5–3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7].In 2019, …
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Investigation of the mechanism for selective flocculation …
A selective flocculation approach was employed to the iron ore tailings which contain 50.98% of Fe (T) with 8.86% of Al 2 O 3 assay. It was observed that, when applying a …
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Effect of primary flocculant type on a two-step flocculation …
The aim is to examine the impact of properties of different broken flocs produced by nonionic or anionic flocculant as primary flocculants, on the 2-step flocculation …
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Rheological Characterization and Performance of Flocculants in Iron Ore
mixes were prepared with 21.425 % soli ds (w/w) concentration. The three. flocculants were prepared as a solution of 2.5 g/L using distilled water and. a fixed dose of flocculant of 30g/tonne of ...
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The effect of residual flocculants in the circulating water on
The current research work initially presented the impact of flocculant in the circulating water on the dewatering of Gol-e-Gohar iron ore. To this end, the role of four key parameters including solid content, pH, flocculant type, and its dosages were studied on Gol-e-Gohar iron ore thickener. The following results are the main highlights: •
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Studies on flocculation characteristics of chromite's ore process
Also, there are literature available with hetero flocculation of process tailings such as iron ore [7], [18], coal [22], [23], [24] etc. However, very few articles are available with hetero flocculation of the complex mineral system like chromite ore process tailings. ... Analysis of the flocculation process of fine tailings particles in ...
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Investigation of the mechanism for selective flocculation process using
Selective flocculation studies were carried out on Barsuan iron ore tailings having 50.5% iron, 7.2% alumina, and 7.8% silica in the absence and presence of ultrasonication at different ...
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Performance evaluation of Fe-based water treatment sludge …
Performance evaluation of Fe-based water treatment sludge for dewatering of iron ore tailings slurry using coagulation-flocculation process: Optimization through response surface methodology ... Effect of primary flocculant type on a two-step flocculation process on iron ore fine tailings under alkaline environment. Miner. Eng., …
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iron ore beneficiation flocculation flow sheet
iron ore beneficiation process flow sheet – Gold Ore …. Up Graduation of Dilband Iron Ore – Pakistan Research Repository. Based on these studies selective flocculation process was envisaged to be the adequate process for … » More detailed flow sheet beneficiation of iron ore – Process Crusher, …. Based on these studies …
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Effect of primary flocculant type on a two-step flocculation process …
Effect of primary flocculant type on a two-step flocculation process on iron ore fine tailings under alkaline environment @article{Yang2019EffectOP, title={Effect of primary flocculant type on a two-step flocculation process on iron ore fine tailings under alkaline environment}, author={Ying Yang and Aixiang Wu and Bern Klein and Hong …
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Selective flocculation of ultrafine iron ore 2. Mechanism of …
Semantic Scholar extracted view of "Selective flocculation of ultrafine iron ore 2. Mechanism of selective flocculation" by P. Weissenborn et al. ... Abstract Heteroflocculation has been determined to be another major reason for loss in selectivity for flocculation process. In a mathematical model developed earlier, conditions for controlling
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XRD peaks of kaolinite sample | Download Scientific …
Beneficiation of low grade iron ore was carried out by selective flocculation process using different flocculants namely starch amylopectin (AP) and grafted copolymer of amylopectin (GAP).
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The role of charge reversal of iron ore tailing sludge on the
Zeta potential measurements were conducted to verify 1) if iron ore tailing sludge is promoting delayed flocculation due to the great abundance of iron oxyhydroxide in the composition; 2) if delayed flocculation is dependent on salts and/or pH differences between the fluvial Doce River environment and marine waters; and 3) if the new …
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Investigation of the mechanism for selective flocculation process …
A huge quantity of iron ore tailings was generated every year from the iron ore washing plants during beneficiation. These discarded tailings were stored in the tailing pond. Safe storage and handling of these tailings are a major concern to the management. Due to depletion of high-grade ore, the government of India had reduced the cut-off grade from …
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(PDF) Background studies and implementation of iron
Blue dust is a naturally very rich and. pure fine haematite iron ore which can be easily beneficiated to remove silica down to 0.30%. So, it. can be valuable source for high quality sponge iron ...
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Recovery of Ultra-Fine Iron Ore from Iron Ore Tailings
Here the study focuses on the application of selective flocculation process for beneficiation of synthetic mixtures of iron ore and kaolinite as well as iron ore tailings. …
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Performance Evaluation of Process Variables for Selective Flocculation …
Experiments indicated that iron ores, such as massive hard ores, laminated hard ores, fine powdery ore and blue dust ore, do not require complicated processing, however at the other end; sub grade ...
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Comparison of selective flocculation of low grade …
A maximum settling rate of 1.58 cm/s was obtained at a high dosage (3.0 mg/g) of AP-g-PAA. Similarly, settling rates of 1.37 and 1.19 cm/s were obtained at the same dosages (3.0 mg/g) with AP and ...
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Studies on flocculation characteristics of chromite's ore process
Flocculation characteristics of chromite ore process tailings are illustrated. ... Also, there are literature available with hetero flocculation of process tailings such as iron ore [7], [18], coal [22], [23], [24] etc. However, very few articles are available with hetero flocculation of the complex mineral system like chromite ore process ...
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Characterization and Beneficiation of Iron Ore Tailings by …
The results indicated that selective flocculation enhanced the Fe grade from 58.2% to 64.6% and an Fe recovery of 66.3% using polyacrylamine as a flocculant whereas when guar gum was used the iron ...
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Beneficiation of Synthetic Iron Ore Kaolinite Mixture
flocculant dose on the selective flocculation of Indian hematitic iron ore slimes (synthetic mixture of high grade hematite, 68% Fe and kaolinite). Starch is a polysaccharide based natural
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Exploring Alternatives to Polyacrylamide: A Comparative …
1. Introduction. The mineral extraction and ore processing industry has grown significantly over the last several years, raising concerns regarding its impact on the environment [].Tailings generated during mineral extraction are mainly made of water and fine particles that form a stable colloidal system and make water recycling difficult [].Even though the …
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Banded Iron Formation to Blue Dust: mineralogical and …
The loss of silica and redistribution of iron is the result of strong subtropical weathering.16 Hypogene fluids have indeed played an important role in the evolution of these ore.10 The origin of Blue Dust by leaching of iron ore has been proposed by many researchers.14,36,52,53 Spencer and Percival53 suggested that the Blue Dust of …
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Mineralogical and Chemical Characterization of Low Grade Iron Ore …
Very high-grade blue dust ore (friable and powdery hematitewith~67% Fe), high-grade massive, hard laminated hematitic ores (~66% Fe) and medium to low grade goethitic/lateritic ores (50%–60% Fe ...
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