how to obtain solution for calcium in furnace slag

  • Immobilization of Carbon Dioxide using Blast Furnace Slag ...

    immobilization method using blast furnace slag is a method of immobilizing it as calcium carbonate by the reaction of calcium oxide in the slag and CO 2 on the surface of slag particles. Therefore, it is important to promote the reaction between CO 2 gas and calcium content in the slag…

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  • How to Make Cement From Blast-Furnace Slag

    Table of ContentsGranulating SlagSlag CementPortland Cement made from Slag and LimestoneIron Portland CementSpecial CementsSlag BricksDiscussion The successful establishment of iron blast-furnace plants at Newcastle and Lithgow naturally invites attention to the economic utilization of the various products and by-products arising out of the industry.

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  • Calcium Ion Extraction from Blast Furnace Slags for the ...

    from blast furnace slag in acidic media, the extracted solution is acidic. In order to obtain precipitated calcium carbonate from the extracted solution by carbonation, base is needed to increase ...

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  • SLAG ANALYSIS SOLUTIONS - Bruker

    Slag formers are either charged with the scrap or blown into the furnace. The Si and Al in the scrap are oxidized first to form SiO 2 and Al 2O 3 (fluxing oxides). As oxygen is blown into the furnace, the principal flux (FeO) is generated. The "slag balance" now starts to shift and the slag …

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  • Carbon Systems Engineering, Centre for Combustion, Carbon ...

    1. Calcium Extraction from Blast Furnace Slag NOTE: Due to the detrimental effect of acidity on leaching selectivity, the extraction of calcium takes place in two steps, using half the molarity of acetic acid (CH3COOH) that would be used in a single step. 1. Grind the BF slag using a mortar and pestle and sieve it to particle size below 2 mm. 2.

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  • In situ characterization of main reaction products in ...

    In materials with high calcium content, such as blast furnace slag, activation generates reaction products that resemble the products precipitating during OPC hydration. The main reaction product is a silicoaluminate calcium hydrate gel (CaO(-Al 2 O 3) SiO 2 H 2 O), commonly called C-A-S-H gel that confers high mechanical properties of the ...

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  • Ground granulated blast-furnace slag - Wikipedia

    Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.

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  • A novel conversion process for waste slag: synthesis of ...

    Blast furnace slag (BFS), a high volume byproduct resulting from the iron manufacturing industry, was used as a low-cost and abundant precursor for preparing a high-surface-area calcium silicate hydrate. The synthesis of slag-made calcium silicate hydrate (slagCS) was …

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  • CN105467068A - Method for detecting copper, iron and ...

    The invention provides a method for detecting copper, iron and calcium in flash converting furnace slag. The method comprises the following steps: (A) dissolving a flash converting furnace slag test sample with acid to obtain a first solution containing copper ions, iron ions and calcium ions, performing reaction on the first solution, sodium sulfide and sodium hydroxide, and filtering to ...

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  • Characteristics and applications of iron and steel slag ...

    Granulated blast furnace slag Just like air-cooled blast furnace slag, this slag has a hydraulic property and there is no risk of alkali-aggregate reaction. Because of the powerful latent hydraulic property that results from fine grinding, this slag is used in products such as Portland blast furnace slag cement.

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  • The Indirect Mineral Carbonation of Electric Arc Furnace ...

    May 22, 2019· The indirect mineral carbonation of industrial residues is one of the potential technologies for CO 2 sequestration. In this paper, the leaching and carbonation of electric arc furnace (EAF) slag ...

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  • Slag and its Role in Blast Furnace Ironmaking – IspatGuru

    Aug 07, 2015· Slag and its Role in Blast Furnace Ironmaking Blast furnace (BF) is the oldest (more than 700 years old) of the various reactors which are being used in the steel plants. It is used for the production of liquid iron (hot metal).

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  • Microwave-Supported Leaching of Electric Arc Furnace (EAF ...

    The effect of microwave-supported leaching of electric arc furnace (EAF) slag by ammonium salts was investigated to improve calcium leaching ratio for CO2 mineral sequestration process. The results show that the calcium leaching ratio from EAF slag at the constant temperature in the microwave field increases about 10% than that under the water bath at the same leaching time.

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  • The evolution of strength and crystalline phases for ...

    The increase in strength and evolution of crystalline phases in inorganic polymer cement, made by the alkali activation of slag, Class C and Class F fly ashes, was followed using compressive strength test and synchrotron X-ray diffraction. In order to increase the crystallinity of the product the ...

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  • how to obtain solution for calcium in furnace slag

    how to obtain solution for calcium in furnace slag | Where ... Abstract. A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag . how to obtain solution for calcium in furnace slag.

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  • Microwave-assisted selective leaching behavior of calcium ...

    MICROWAVE-ASSISTED SELECTIVE LEACHING BEHAVIOR OF CALCIUM FROM BASIC OXYGEN FURNACE (BOF) SLAG WITH AMMONIUM CHLORIDE SOLUTION X. Zhang, G. Ma *, Z. Tong, Z. Xue The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,

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  • THE - National Slag

    NSA - LEACHATE FROM BLAST FURNACE SLAG April 8, 2003 Page 2 LEACHATE - What it is, How to treat it Leachate can be described as a solution or product that is obtained when a solid material has been extracted or dissolved by the action of a percolating liquid (water).

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  • how to obtain solution for calcium in furnace slag

    As the extraction ratio of calcium in EAF slag is nearly 70% and reaction ratio of calcium in leaching solution with carbon dioxide almost reaches, CO 2 uptakes can be calculated as 306 g CO 2 /kg slag for the EAF slag containing 39% calcium oxide, compared to the thin-film condition and slurry-phase route (176~280 g CO 2 /kg slag) .

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  • Experimental study on the extraction of calcium, magnesium ...

    They found that minerals require stronger acids than slags for an effective extraction. For example, in the case of acetic acid (33% water solution), a complete Ca extraction from blast furnace slag can be obtained, 90% extraction from electric arc furnace and BOF slags, 80% extraction from AOD slag and 50% extraction efficiency from wollastonite.

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  • Preparation of Silica-Alumina Nanoparticles via Blast ...

    Abstract: Blast-furnace slag (BFS) has been used as a feedstock for CO2 sequestration by indirect mineral carbonation to produce calcium carbonate precipitates and solid residues. The most-abundant elements in these residues, Si and Al, are usually considered to be impurities that need to be removed in acid-dissolution processes involving BFS.

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  • Two-way Valorization of Blast Furnace Slag: Synthesis of ...

    1. Calcium Extraction from Blast Furnace Slag. NOTE: Due to the detrimental effect of acidity on leaching selectivity, the extraction of calcium takes place in two steps, using half the molarity of acetic acid (CH 3 COOH) that would be used in a single step.. Grind the BF slag using a mortar and pestle and sieve it to particle size below 2 mm.

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  • US20180051357A1 - Method for recovering calcium-containing ...

    The purpose of the present invention is to provide a method for recovering calcium-containing solid components from steelmaking slag, with which it is possible to easily increase the calcium recovery rate. With the method, steelmaking slag is immersed in an aqueous solution containing carbon dioxide, and calcium in the steelmaking slag is made to leach out into the aqueous solution.

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  • Calcium Ion Extraction from Blast Furnace Slags for the ...

    PDF | On Jan 1, 2012, Seong-Ho Lee and others published Calcium Ion Extraction from Blast Furnace Slags for the Synthesis of Pure Calcium Carbonate Polymorphs by Accelerated Carbonation

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  • Carbide Slag Recycling Solution - topmie.com

    The chemical analysis of ferrosilicon particle slag in calcium carbide slag contains Si25-30%, iron content above 70%, specific gravity greater than 6.5g/cm3, and density difference from calcium carbide slag average volume is 1.8-2.2g/cm3, which is low qualit ferrosilicon .

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  • Blast Furnace Slag - Material Description - User ...

    Blast furnace slag materials are generally available from slag processors located near iron production centers. Cements containing ground granulated blast furnace slag are available from many producers of Portland cement or directly from ground granulated blast furnace slag cement manufacturers.

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  • Leaching of Metal Ions from Blast Furnace Slag by Using ...

    Abstract: Blast furnace slag (BFS) was selected as the source of Ca for CO2 mineralization purposes to store CO2 as CaCO3. BFS was dissolved using aqua regia (AR) for leaching metal ions for CO2 mineralization and rejecting metal ions that were not useful to obtain …

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  • calcium chloride manufacturing process from waste slag

    solution mining process to obtain calcium carbonate. Our how to obtain solution for calcium in furnace slag Keep up with the latest news,, calcium chloride manufacturing process from waste . Chat Now; the process of manufacturing slag - i-webin.

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  • Processing of Granulated Blast Furnace Slag and its ...

    The molten blast furnace slag is quenched almost immediately to form a material generally smaller than a #4 sieve. The efficiency, which the molten blast furnace slag is rapidly chilled, as well as the chemical composition of the slag source, largely determines its cementitious properties for use in concrete.

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  • NATIONAL SLAG ASSOCIATION

    NATIONAL SLAG ASSOCIATION LEACHATE FROM BLAST FURNACE SLAG - What it is and How to treat it The following is a brief description of Blast Furnace Slag chemistry and the phenomenon of leaching as it relates to this material. BLAST FURNACE SLAG - Defined Blast Furnace Slag is defined as the non-metallic product consisting essentially of

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  • Slag - Wikipedia

    Basic slag is a co-product of steelmaking, and is typically produced either through the blast furnace - oxygen converter route or the electric arc furnace - ladle furnace route. To flux the silica produced during steelmaking, limestone and/or dolomite are added, as well as other types of slag conditioners such as calcium aluminate or fluorspar .

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