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slag and iron ore tailings in

2021-10-13T07:10:57+00:00
  • Frontiers Effect of Iron Tailings and Slag Powders on ...

    Jul 26, 2021  Tailings are one of the largest solid wastes in stock at present. In order to improve the comprehensive utilization rate of tailings, especially to solve the problems of fine-grained tailings treatment, the concrete composite admixture was prepared by using iron tailings powder and slag powder. In order to study the influence of iron tailings powder on the workability and long-term

  • Author: Wu Ruidong, Shen Yu, Liu Juanhong, Cheng Linian, Zhang Guangtian, Zhang Yueyue
  • Steel slag and iron ore tailings to produce solid brick ...

    Mar 01, 2018  Up to10%cash back  The main goals of this work were to verify the potential of reuse of steel slag and iron ore tailings as secondary raw materials to produce solid brick and to evaluate whether this application can consume the amount of slag generated in Brazil. The feasibility of this application was verified through a comparative study. The mechanical behavior of concrete artifacts

  • Cited by: 6
  • Geopolymer Bricks Using Iron Ore Tailings, Slag Sand ...

    Jul 03, 2018  The compressive strength of geopolymer bricks with iron ore tailings, slag sand, fly ash, and GGBS increases with the increase in the molarity of the alkaline solution and increases with the increase in the percentage of slag sand. The minimum required compressive strength for geopolymer brick shall be achieved by all the different mixes indicated.

  • Cited by: 1
  • Using Iron Ore Tailings from Tailing Dams as Road

    Oct 10, 2016  The iron ore tailings were characterized according to their chemical, mineralogical, environmental, and physical properties. Subsequently, the tailings were chemically stabilized using cement, lime, or steelmaking slag as binder. The tailing-cement, tailing-lime, and tailing-slag mixtures studied consisted of 1, 2, 5, and 10% binder content, each.

  • Cited by: 27[PDF]
  • Sustainable use of mine waste and tailings with suitable ...

    not be suitable for pavements. On the other hand, iron ore waste will have better strength, which can be used for pavements and it is also available in large quantity. 3.1 . Iron ore waste and tailings . Iron is the world's most commonly used metal -steel, for which iron ore is the raw material,

  • Cited by: 18
  • Effects of iron ore tailings on the compressive strength ...

    Nov 10, 2020  Iron ore tailings (IOT) are mining waste obtained during the beneficiation process to concentrate iron ore , . The discharge capacity of tailings in China increases every year, accounting for more than 50% of the world's tailings discharge.

  • Cited by: 8
  • Study on the Preparation of High Performance Concrete ...

    The raw materials used in the test included the steel slag (SS), iron ore tailings (IOT), GBFS, cement clinker (CC), flue gas desulfurization gypsum (FGDG), and others. (1) SS. The SS used was basic hot steaming steel slag which com-plies with the Chinese National Standard GB/T 20451-2006. The chem-ical compositions of steel are shown in Table 1.

  • Tailings - Wikipedia

    OverviewTerminologyExamplesEconomicsEnvironmental concernsHuman RightsStorage methodsInternational policy

    Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed. The extraction of minerals from ore can be done two ways: placer mining, which uses water and gravity

  • Wikipedia Text under CC-BY-SA license
  • Utilization of Iron Ore Tailings as Raw Material for ...

    AbstractIntroductionMaterials and MethodsResult and DiscussionConclusionsAcknowledgmentsThe cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of clinkers were prepared: one was prepared by IOT; the other was prepared by clay as a reference. The reactivity and burnability of raw meal, mineralogical composition and physical
  • Slag - Wikipedia

    OverviewOre smeltingAncient usesModern usesBasic slagSee alsoFurther reading

    Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. Slag is usually a mixture of metal oxides and silicon dioxide. However, slags can contain metal sulfides and elemental metals. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature controlof the smelting, and minimizing any re-ox

  • Wikipedia Text under CC-BY-SA license
  • Frontiers Effect of Iron Tailings and Slag Powders on ...

    Jul 26, 2021  Tailings are one of the largest solid wastes in stock at present. In order to improve the comprehensive utilization rate of tailings, especially to solve the problems of fine-grained tailings treatment, the concrete composite admixture was prepared by using iron tailings powder and slag powder. In order to study the influence of iron tailings powder on the workability and long-term

  • Steel slag and iron ore tailings to produce solid brick ...

    Mar 01, 2018  The main goals of this work were to verify the potential of reuse of steel slag and iron ore tailings as secondary raw materials to produce solid brick and to evaluate whether this application can consume the amount of slag generated in Brazil. The feasibility of this application was verified through a comparative study. The mechanical behavior of concrete artifacts and pressed bricks made ...

  • In situ remediation of arsenic-rich mine tailings using ...

    Liu et al. (Reference Liu, Gan, Wang, Ma and Li 2010) used iron slag to remove arsenic from water under acidic conditions (pH < 5), and showed that As adsorbed onto the iron slag. Iron dust was used by Liu et al. ( Reference Liu, Cheng, Zhao, Dong and Frost 2013

  • Table 1 Steel slag and iron ore tailings to produce ...

    The main goals of this work were to verify the potential of reuse of steel slag and iron ore tailings as secondary raw materials to produce solid brick and to evaluate whether this application can consume the amount of slag generated in Brazil. The feasibility of this application was verified through a comparative study. The mechanical behavior of concrete artifacts and pressed bricks made ...

  • Geopolymer Bricks Using Iron Ore Tailings, Slag Sand ...

    Jul 03, 2018  World is pound with million tonnes of industrial wastes such as ground granulated blast furnace slag (GGBS), flyash and mine tailings as a various industrial waste. The best way to make use of these wastes is to incorporate these materials as structural elements, which in turn minimizes the carbon foot print. In this contest, this study focuses on using iron ore tailings and slag sand as a ...

  • (PDF) Effect of Iron Tailings and Slag Powders on ...

    When the content of iron tailings powder in the composite admixture. is 50%, the 1080d long age strength of C30 and C50 concrete can reach 50.3 and. 80.7 MPa. Based on

  • Sustainable use of mine waste and tailings with suitable ...

    not be suitable for pavements. On the other hand, iron ore waste will have better strength, which can be used for pavements and it is also available in large quantity. 3.1 . Iron ore waste and tailings . Iron is the world's most commonly used metal -steel, for which iron ore is the raw material,

  • Mine tailings-based geopolymers: Properties, applications ...

    Jul 01, 2021  The developed bricks were found to be more economical than the commercially available clay bricks; a cost reduction of 36.8% was noted. A supplementary study Kumar et al., incorporating Iron ore tailings and slag sand as geopolymer stabilizers were used for

  • Tailings - Wikipedia

    Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.. The extraction of minerals from ore can be done two ways: placer mining, which uses water ...

  • Study on the Preparation of High Performance Concrete ...

    The raw materials used in the test included the steel slag (SS), iron ore tailings (IOT), GBFS, cement clinker (CC), flue gas desulfurization gypsum (FGDG), and others. (1) SS. The SS used was basic hot steaming steel slag which com-plies with the Chinese National Standard GB/T 20451-2006. The chem-ical compositions of steel are shown in Table 1.

  • Utilization of Iron Ore Tailings as Raw Material for ...

    Mar 16, 2016  The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of clinkers were prepared: one was prepared by

  • Recovering Iron from Iron Ore Tailings and Preparing ...

    Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures were prepared from high-silica residues.

  • Recovering Iron from Iron Ore Tailings and Preparing ...

    minerals Technical Note Recovering Iron from Iron Ore Tailings and Preparing Concrete Composite Admixtures Chang Tang 1,2,3, Keqing Li 1,2,*, Wen Ni 1,2,* and Duncheng Fan 1,2 1 Key Laboratory of the Ministry of Education of China for High-E cient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China; [email protected] (C.T.);

  • Utilization of Iron Ore Tailings for the Production of Fly ...

    In this circumstance, this analysis observes on utilizing iron ore tailings and slag sand as a substitution for clay or natural sand for the construction of steady geopolymer obstruct. Furthermore, in this analysis, geopolymer is utilized as a binder rather than cement.

  • Table 2 Steel slag and iron ore tailings to produce ...

    The main goals of this work were to verify the potential of reuse of steel slag and iron ore tailings as secondary raw materials to produce solid brick and to evaluate whether this application can consume the amount of slag generated in Brazil. The feasibility of this application was verified through a comparative study. The mechanical behavior of concrete artifacts and pressed bricks made ...

  • Mining Waste Special Wastes Wastes US EPA

    Slag tailings from primary copper processing ... Air pollution control dust/sludge from iron blast furnaces; Iron blast furnace slag; Treated residue from roasting/leaching of chrome ore ... ore. After the beneficiation step, the remaining material is often physically and chemically similar to the material (ore or mineral) that entered the ...

  • Utilization of Iron Ore Tailings for the Production of Fly ...

    In this circumstance, this analysis observes on utilizing iron ore tailings and slag sand as a substitution for clay or natural sand for the construction of steady geopolymer obstruct. Furthermore, in this analysis, geopolymer is utilized as a binder rather than cement.

  • Using Iron Ore Tailings from Tailing Dams as Road Material ...

    Oct 10, 2016  The iron ore tailings were characterized according to their chemical, mineralogical, environmental, and physical properties. Subsequently, the tailings were chemically stabilized using cement, lime, or steelmaking slag as binder. The tailing-cement, tailing-lime, and tailing-slag mixtures studied consisted of 1, 2, 5, and 10% binder content, each.

  • TENORM: Copper Mining and Production Wastes US EPA

    Jun 07, 2021  One layer is a waste containing iron and silica compounds and is discarded as slag slagByproduct left after a desired metal is thermally separated from its raw ore.. Approximately 75 percent of the copper concentrate ends up as slag. The other layer, called "matte copper," consists of copper, iron sulfide and other metals.

  • Fabrication of Baking-free Bricks from Iron Ore Tailings ...

    Keywords:Baking-free tailing bricks, iron ore tailings, slag, compressive strength, density, scanning electron microscopy. Abstract: Background: Tailings produced from iron ore smelting processes have increased dramatically in recent decades. The storage of tailings not only needs high cost, but also causes a great environmental and safety hazard.

  • Recovering Iron from Iron Ore Tailings and Preparing ...

    Apr 01, 2019  Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs... DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

  • Utilization of Iron Ore Tailings as Raw Material for ...

    Mar 16, 2016  The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of clinkers were prepared: one was prepared by

  • RESOUR CE PA CK Iron Mining and Processing in South Africa

    Pig iron Slag Iron Ore (65% Fe) The ore undergoes a series of crushing steps to reduce the particle size. Iron ore is separated into the different grades using cyclones and drum separators. Coke (carbon) is reduced: 2C + O 2 2CO CO reacts with iron ore to form iron: 3CO + Fe 2O 3 2Fe + 3CO 2 Flux (limestone) is added to remove impurities from ...

  • Environmental Risks From Mine Tailings

    Aug 10, 2018  Tailings are a type of rock waste from the mining industry. When a mineral product is mined, the valuable portion is usually embedded in a rock matrix called ore.

  • SciELO - Brasil - Reuse of iron ore tailings in the ...

    2.1 Iron ore tailings. Two mine tailings were used as aggregates in this study, both from the mineral processing of iron ore in Minas Gerais state, Brazil. The first is obtained from jig concentrator devices, used to separate particles within the ore body, based on their specific gravity (relative density); it has particles between 9.0-0.3 mm.

  • Anglo American Platinum - Details on tailings storage ...

    Jun 07, 2019  07 June, 2019. Anglo American Platinum has today published on its website the details of its nine mineral residue facilities, comprising six managed tailings storage facilities (TSF) and three slag stockpiles. Details of an additional eight TSFs at non-managed JV operations in which it has an ownership interest are also disclosed.

  • Hydration Mechanism of Sustainable Clinker-Free Steel Slag ...

    Mar 05, 2021  The BOF slag is of basic type, with M b = (CaO + MgO)/(SiO 2 + Al 2 O 3) = 2.18 (> 1), resulting in predominantly crystalline slag.23. Tailings. The processed iron ore tailings employed as aggregate were obtained from Fujian Makeng Mining Co. Ltd.

  • METHOD FOR PREPARING IRON ORE CONCENTRATES BY

    1. A method for preparing iron ore concentrates by recycling copper slag tailings, comprising the following steps: (1) purifying and absorbing SO 2 flue gas with a SO 2 concentration of 100-1000 mg/m 3 by using copper slag tailings slurry, discharging the slurry when a concentration of SO 2 at a flue gas outlet is greater than 100 mg/m 3, and conducting filtering; (2) adding iron powder to the ...