Coagulating sedimentation and oxidation treatment of process water in iron ore flotation of Yuanjiacun iron mine had been studied. ... The effects from water recycling on water quality and ...
The process water chemistry of an industrial iron ore concentrator which involves many recycled water sources with a continuous build-up of these dissolved ions due to water recirculation has rarely been reported. What happens to the flotation behaviors of iron oxides if their accumulations in the process water occur and how they influence the
adding wash water to the froth layer, poorly hydrophobic mate- ... The flotation of iron ore was first investigated in America starting in 1931 (Iwasaki 1983, 1999; Uwadiale 1992). Over
FLOTATION. A.V. Nguyen, in Encyclopedia of Separation Science, 2007 Industrial Applications of Flotation. Flotation has been used by mineral and chemical engineers for the separation and concentration of aqueous suspensions or solutions of a variety of minerals, coal, precipitates, inorganic waste constituents, effluents, and even …
ABSTRACT Recently, beneficiation of iron from low-grade ores with high impurities has been a matter of discussion. Flotation is one of the most effective technologies for the upgrading of low-grade, finely grained iron ores. This method can also be applied to reduce the impurities content in magnetite concentrates obtained using wet …
The pressure for saving water by closing the water loops in mineral processing is increasing continuously. The drivers for higher recirculating rates include water scarcity in dry areas, environmental legislation that is becoming stricter in most countries, limitations set for wet tailings management and the increased demands for …
The possibility of recovering residual amine present in the water phase of tailings pulps of the reverse cationic flotation of iron ore was investigated.
Iron ore tailing is a major solid waste requiring advanced recycling methods because ore tailing powder is polluting air and water resources. For instance, about 300 million tons of tailings are disposed yearly in 1229 iron ore tailings dams in the Hebei province in China. Iron ore tailings can be recycled as functional materials because these tailings are …
The reverse flotation of the iron ore with etheramine collector is significantly impacted when the iron-bearing silicates and the kaolinite are present in the silicates …
The experiments used water recirculation for five cycles and amine to achieve the optimal flotation dosage, considering the residual amine contained in …
The reverse cationic flotation of iron ores using starch as depressant and ether amine as collector may be performed using the process (recycled) water with no impact on the …
Semantic Scholar extracted view of "Residual amine in iron ore flotation" by Geraldo M.B. Batisteli et al. ... Malachite and heterogenite behavior during the locked-cycle recycling of process water in flotation of copper-cobalt oxide ores. L. Shengo S. Gaydardzhiev N. M. Kalenga. Environmental Science, Materials Science.
DOI: 10.1016/j.jiec.2024.01.068 Corpus ID: 267420390; Selective Separation of Anglesite from Iron Ore Sintering Dust: A Novel Aggregate Flotation Method @article{Tang2024SelectiveSO, title={Selective Separation of Anglesite from Iron Ore Sintering Dust: A Novel Aggregate Flotation Method}, author={Hong-hu Tang and …
Coagulating sedimentation and oxidation treatment of process water in iron ore flotation of Yuanjiacun iron mine had been studied. The process water of this mine carried residual polyacr. e-Marefa ... Wen-li& Xu, Hai-feng. Treatment and Recycling of the Process Water in Iron Ore Flotation of Yuanjiacun Iron Mine. Journal of Chemistry. 2017. Vol ...
Water chemistry issues and effects in iron ore flotation are not new but their importance and relevance will grow as the need to process in lower-quality waters increases. ... and improves the quality of recycled water. The basic coal flotation technology has been derived from ore flotation, where the technology has been extensively used. ...
For iron ore flotation, different applications, such as anionic-anionic collectors, anionic-cationic collectors, and ionic-nonionic surfactants became common in reverse anionic and cationic flotation to increase solubility in order to reduce collector consumption and improve metallurgical results (Rao and Forssberg, 1997, Filippov et …
Iron ore flotation process. 1. Grinding: Crushing and grinding the raw ore to a certain particle size is a necessary preparation before iron ore flotation.The purpose of grinding is to fully ...
recycling process water in flotation practice first. A novel coagulant CYH was introduced to coagulate HIMS tailings, and the coagulating sedimentation mechanism of CYH was …
- **Operation**: In iron ore flotation, selective attachment is used to separate iron ore minerals from gangue minerals. ... - **Best Practice**: Implementing water recycling systems and efficient water management practices help reduce water consumption and minimize the environmental impact of mining operations. 10. …
The reverse cationic flotation of iron ores using starch as depressant and ether amine as collector may be performed using the process (recycled) water with no impact on the iron recovery and the quality of iron concentrate (silica and iron contents). The use of recycled water allows to reduce the collector consumption up to 50 % while a
The reagents used in iron ore flotation, including starch, amines and fatty acids, and the mechanisms of their interactions with the minerals in iron ore are examined. ... 2011c. The dispersive effect of sodium silicate on kaolinite particles in process water: implications for iron ore processing. Clays Clay Miner. 59, 233-239. [36] Ma, M ...
The process water of this mine carried residual polyacrylamide (PAM), poly (diallyldimethylammonium chloride) (PDADMAC), and Ca ²⁺ from the flotation and caused decrease of the …
The role of reagents utilised in iron ores flotation is reviewed. Desliming and flotation stages should be performed at pH levels as low as possible to reduce the expenses with caustic soda.
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 …
Recycling water with high concentrations of impurities is a normal strategy for most of the mineral processing plants; however, water quality should be carefully …
Efficient and clean flotation separation of copper-sulfur has attracted soaring interest in the beneficiation of sulfide ore. The objective of this work was to examine the influence of calcium hypochlorite (Ca(ClO) 2) oxidative modification on the flotation separation of chalcopyrite from pyrite in acid mine drainage (AMD) system.A maximum …
In the flotation process, air is bubbled through a suspension of fine iron ore in water to which a small quantity of flotation reagent is added. This reagent modifies the surface of either the iron oxide or the principal gangue component, normally silica, so that these particles attach themselves to the air bubbles and are carried to the surface,
When recycled water containing high levels of dissolved salts and metallic ions is employed, apatite [Ca 5 (PO 4) 3 (F, Cl, OH)] ... v. 65, n. 4, pp. 549–552, 2012.] demonstrated the feasibility of process water reuse in iron ore flotation after treatment by DAF for the removal of Ca 2+ and Mg 2+ cations.
The Sydvaranger magnetite mine closed in 1996 due to low iron ore prices and was reopened in 2009. The flowsheet has remained more or less as in the old plant, based upon two grinding steps followed by magnetic separation. The magnetite is free of harmful elements and should be attractive on the high quality market. This requires a …
The influence of major components of calcium and sulfate ions in process water on xanthate collector adsorption and flotation response of pure chalcopyrite, galena, and sphalerite minerals was investigated by Hallimond tube flotation, zeta-potential, FTIR, and XPS spectroscopy studies, while bench scale flotation tests were also carried out …
ABSTRACT Iron ore tailings have become one kind of the most hazardous solid waste. Beneficiation of iron ore tailings is a significant issue in the world steel industries, from the point of view of both pollution control and secondary resources. This investigation addressed the processing of tailings with high sulphur content from an iron …
The impact of the zeta potential and surface chemistry on flotation and deslime is also discussed. The aim of this paper is to provide a well-detailed, well-referenced source for the current status of iron ore flotation, and thus provide a useful guide to its future development and to further improve flotation performance for iron ore.
Flotation, in mineral processing, method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition—that is, the surfaces are either repelled or attracted by water. The flotation process was developed on a commercial scale early in the 20th century to
Froth flotation has been widely used in upgrading iron ores. Iron ore flotation can be performed in two technical routes: direct flotation of iron oxides and reverse flotation of gangue minerals with depression of iron oxides. Nowadays, reverse flotation is the most commonly used route in iron ore flotation. This review is focused …
By using the amine containing recycled water, the same flotation results were noticed by saving nearly 50 % of the collector amount. Key words: recycling of amines, reverse …
The present work investigated the direct reuse effect of process water containing residual amine from tailings and concentrate pulps on the performance of the cationic reverse flotation of iron ore. Iron ore sample collected after the desliming operation in Conceição Industrial U...
mineral/water slurry. The particles with attached air bubbles are then carried to the surface and ... removing silicate minerals from iron ores; separating phosphate minerals from ... Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 ...
The RE in iron ore tailings is recycled with flotation processes using combinations of inhibitors such as water glass and 8# (Naphthalene hydroxamic acid) RE collector. Since it has been approved for production processes, the recovery rate for RE using this process is very low, and it is ineffective for recycling RE minerals found as fine ...
Recycling of process water is a good way to solve the problem. In this study, the influence of tailings wastewater components were investigated on flotation of hematite in order to assess the practicability of recycling process water in flotation practice first.