— The dewatering of tailings is one of the serious challenges that the mining and mineral processing industries have encountered internationally. Solid–liquid separation methods are applied to wastewater, which generally consists of fine particles and water; fine particles are settled in thickeners by the flocculation method and the cleaned water is …
— The effect of anionic and non-ionic flocculants dosages on the electrokinetic zeta potential of iron ore tailings particles is shown in Fig. 4, Fig. 5 respectively at pH 6.5 and 10. The zeta potential measured in the absence of flocculant dosage at pH 6.5 and 10 are −12 and −26.5 mV respectively (Fig. 2).With the addition of anionic PAM flocculant, …
— Two varieties of iron ore slimes were collected from iron ore mines Kiriburu (Orissa, India) and Joda (Bihar, India), respectively. The iron ore slimes are abbreviated as K and J. For the flocculation experiment, the following flocculants were used.
— Experiments have shown that it is possible to obtain a concentrate containing 65% iron, 1.8% alumina and 1.4% silica with an iron recovery of 80% from the tailings of Barsuan iron ore plant ...
— In the present paper, an attempt has been made to beneficiate iron ore tailings by selective flocculation using guar gum and starch as flocculants along with …
— Considering the high gypsum content and slow sedimentation of ultra-fine tailings in Chenchao Iron Mine, natural and flocculant sedimentation experiments of …
— Synthetic flocculants improve dewatering capabilities but are they having a negative affect on TSF management? In our latest blog, we discuss whether flocculant choice plays a role in tailings treatment, and …
— The flocculation characteristics of sodium alginate-g-polyacrylamide (grade VI) SAG-VI developed in authors' laboratory was compared with some commercially available flocculants in aqueous suspensions of 0.5 wt.% iron ore slimes. Two varieties of iron ore slimes were taken, one is denser than other, for comparison. The iron ore slime …
— Among the four flocculants, the sedimentation of sample using the special BASF flocculant is the fastest. When the tailings of 1 ton add this flocculant of 20 g, ... Chenchao Iron Mine is rich in high-quality iron ore reserves. Underground mining will be performed comprehensively after the open pit of the mine is closed to utilize local ...
— 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 polyacrylamide, guar gum, and alstafloc are used to study the efficiency of the settling …
DOI: 10.1016/J.MATPR.2021.01.128 Corpus ID: 233800522; Rheological characterization and performance of flocculants in iron ore tailings management @article{Krishna2021RheologicalCA, title={Rheological characterization and performance of flocculants in iron ore tailings management}, author={R. S. Krishna and Gonzalo R. …
— Flocculating settling technology is important in the tailings filling in mines [5][6][7]. Flocculants are added to a dispersed ... Field application of this model in Sijiaying Iron Ore Mine, China ...
— Rheological characterization and performance of flocculants in iron ore tailings management ... Increasing efficiency of thickener operation in concentrate plant of iron ore mine using coagulation ...
Iron ore; Minor metals; Non-Metallic Mineral Mining and Quarrying; Precious Metals and Minerals; ... As Nasaco specialises in the mining industry it has built its flocculant range based on 20 years experience in the field and offers a range of products in the following categories: ... All of our flocculants are manufactured and supplied as ...
— 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). The iron ore used in the investigation contained 56.98% Fe, 5.45% Al 2 O 3, and 4.22% SiO 2. Flocculant dosage, number of floc washing, and pH were ...
DOI: 10.1016/j.mineng.2022.107440 Corpus ID: 247091349; The effect of residual flocculants in the circulating water on dewatering of Gol-e-Gohar iron ore @article{BahmaniGhaedi2022TheEO, title={The effect of residual flocculants in the circulating water on dewatering of Gol-e-Gohar iron ore}, author={Abdolreza Bahmani …
— A significant portion of currently mined iron ores, that is, 15–20% of run of mine ore, typically ends up as slimes—a slurry of fine particles (<45 micron) with relatively higher alumina contents (7–15% Al2O3). The only viable option currently is to dispose these slimes in tailing ponds for water recovery and future use. Due to increasing demand for …
— This paper deals with experimental work to improve the settling and filtration characteristics of an industrial sludge from an iron-ore mine using synthetic polymeric …
This article discusses the effect of physical and chemical modifications of starches on the anionic and cationic flotation of silica from oxidized iron ores and magnetite-taconite concentrates. It also deals with the results of the interaction of starch, pH, and calcium ions on the flocculation, clarification, and filtration of iron ore slimes and magnetite-taconite …
— According to the U.S. Geological Survey there are approximately 170 billion tons of iron ore available in the world, representing 83 billion tons of metallic iron which could be extracted. ...
— The hematite iron ore from one of the mines of Odisha was taken for this study. The hematite iron ore fines contain reasonable amount of clay minerals, which gives negative affect in wet process for preparation of pellet feed material. ... This study highlights the utilization of different flocculants in the settling of Iron Ore Tailings slurry ...
— Kudremukh iron ore of India, Brazilian iron ore, and Chinese iron ore containing high silica are amenable to flotation. 4. Conclusions. The studies of pure minerals and different iron ores with variations in alumina and silica content were subjected to flotation studies to understand the influence of these elements in flotation.
— The selected feed iron ore slimes are subjected to sizing in a conventional vibrating sieve shaker followed by assaying for each fraction. The Scanning Electron Microscope - Energy Dispersive X-ray spectroscopy (SEM-EDX) average and spot wise analysis focused predominantly to recognise the elemental composition of the mineral …
— The tailings used in this study were iron ore waste tailings originally supplied by ArcelorMittal USA, steel and mining company operating in the USA. The tailings preparation process comprised of a number of steps, the first of which was taking a 45-kg wet sample of +4.0 mm feed size from the waste tailings, and passing it through a …
Flocculants and coagulants for mining operations. ... KemPel organic binders for agglomeration of iron-ore can be used as an alternative to, or in conjunction with, bentonite in the pelletization process. Kemira is working in cooperation with leading pellet producers, industry leaders like Outotec and research centers such as IPT in São Paulo ...
Six different combinations of acryl-type anionic flocculants and polyamine-type cationic coagulants were selected to conduct kinetic tests on turbidity removal in mine water. ... (Cm) Efficiency of thickener in iron ore mine 30 y = -0.6986x + 33.692 R² = 0.9865 25 20 15 10 5 30 y = -0.478x + 33.336 R² = 0.9898 25 20 15 10 5 0 0 0 50 100 Time ...
Comprehensive reutilization of iron in iron ore tailings: preparation and characterization of magnetic flocculants Yunyi Li1 & Xiaoyu Tian1 & Xiao He2 & Yangsheng Liu2 & Jiangyu Ye1 & Yunmei Wei1 Received: 7 December 2019/Accepted: 15 June 2020 # Springer-Verlag Germany, part of Springer Nature 2020 Abstract
— The present investigation aims at detailed beneficiation of the low-grade goethitic ore of Gua iron ore mines from Jharkhand using selective flocculation process and modified starch as flocculant ...
— An overview of iron ore beneficiation techniques, including their limitations and environmental concerns, iron ore bio-beneficiation techniques, and future outlook …
— This study aimed to evaluate the use of cross-linked cationic starch and pregelatinized cationic starch as flocculants in the sedimentation of iron ore tailing slime seeking a less toxic and less expensive alternative when compared with the use of polyacrylamide. ... Currently in the mining industry, the minerals of interest's liberation ...
DOI: 10.1016/j.matpr.2020.01.594 Corpus ID: 212824058; Effect of anionic flocculant on settling rate of iron ore ultra-fines @article{Sadangi2020EffectOA, title={Effect of anionic flocculant on settling rate of iron ore ultra-fines}, author={Jitendra Kumar Sadangi and Ashok Kumar Sahoo and B. R. Sushobhan and N. Choudhury}, journal={Materials …
— India is endowed with huge iron ore deposits. During processing of these iron ores, a large amount of extremely fine particles (typically less than 45 microns), …
— Introduction. Mine backfilling plays a significant role in improving ground stability, increasing ore recovery, and controlling underground pressure and thus has both economic and environmental benefits [1–3].Therefore, mine backfilling is being widely used all over the world in many underground mines [4–6].The development of backfilling …
— This necessitates optimization of dewatering systems particularly in arid and semi-arid mining regions. ... (containing 51% iron) is treated to produce 350–400 t/h concentrate with iron contents of 63%. The tailing of the iron ore beneficiation plant (containing 17% iron) at a mass flow rate of 300–350 t/h in slurry form with 5–8% w/v ...
This article discusses the effect of physical and chemical modifications of starches on the anionic and cationic flotation of silica from oxidized iron ores and magnetite-taconite concentrates, and the results of the interaction of starch, pH, and calcium ions on the flocculation, clarification, and filtration of iron ore slimes and magnetite-taconite tailings. …
— The results found reveal that this iron ore tailing slime sample is representative of the iron ore tailing slimes commonly found in the Iron Quadrangle. 3.2. Preparation and characterization of hematite and quartz. Hematite had a D 90 of 45.76 μm and an average diameter of 11.27 μm. The density of solids found using gas pycnometer …
— The chemical compounds commonly used as coagulants/flocculants include iron salts (FeCl 3 or Fe 2 (SO 4) 3), aluminum salts (Al 2 (SO 4) 3) [8,9], hydrated lime, magnesium carbonate, and polymers (aluminum chlorohydrate, polyaluminum chloride (PAC), polyaluminum sulfate chloride, and polyferric sulfate) . Some of the mentioned …
— Water plays a crucial role in mineral beneficiation, and thus dewatering the tailings from mineral processing plants has great importance. This paper discusses the influence of chemical conditions (pH, flocculants, surfactants, and coagulants) on the filtration performance of iron ore tailings. The results indicated that Ca 2+ and Na + ions …
Iron ore; Phosphate and potash; Sand, gravel and aggregate ... Nalco's mining and process technologies and application expertise, coupled with our core water treatment knowledge, make us the perfect partner to assist with all aspects of improved sustainable water use. ... POL-E-Z® Liquid Flocculants-quick inverting flocculant technology ...
