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obtain solution for calcium furnace slag

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.

(PDF) Calcium Ion Extraction from Blast Furnace Slags for ...

Calcium extraction from air-cooled Blast Furnace Slag using acids and amm onium solutions As shown in Table 2 and Figure 4, the extraction ratio of calcium ion from air-cooled blast furnace slag

Formation of C-S-H in calcium hydroxide–blast furnace slag ...

(a) Calcium hydroxide (industrial product of ArcelorMittal in El Hadjar, Algeria). This was used with a particle size distribution giving a screen overflow of 19.2% on the 0.08 mm sieve. (b) Blast furnace slag is a by-product of the iron industry ArcelorMittal in El Hadjar (Algeria). It was ground to obtain

Blast Furnace Slag CAIROX POTASSIUM PERMANGANATE

Slag is a by-product formed during the manufacturing of steel. In Blast Furnace Slag, calcium sulfide is a predominant impurity that results in environmental concerns, specifically when used for trails, road beds and embankments. The calcium sulfide leaches from the slag and results in

Activation of blast furnace slag by a new method ...

Aug 01, 2009  The use of calcium chloride or calcium bromide allows for the activation of blast furnace slag due to the maintenance of a high calcium ion concentration and reduction of pH in the pore solution. However, an application of such salts in the building industry is constrained by the fact that chloride and bromide ions promote pit-hole corrosion of ...

Phosphate Removal from Aqueous Solutions Using Calcium ...

Blast furnace slag (BF slag) also has a potential as an adsorbent for removing phosphate from wastewater. BF slag is a high-volume byproduct resulting from iron-making process, in which approximately 290 kg of BF slag is pro-duced per ton of pig iron in blast furnace. In Japan, BF slag has currently been recycled in civil engineering work

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.Ground-granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ...

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 ...

Phosphate Removal from Aqueous Solutions Using Calcium ...

Blast furnace slag (BF slag) also has a potential as an adsorbent for removing phosphate from wastewater. BF slag is a high-volume byproduct resulting from iron-making process, in which approximately 290 kg of BF slag is pro-duced per ton of pig iron in blast furnace. In Japan, BF slag has currently been recycled in civil engineering work

THE - National Slag Association

Blast Furnace Slag is defined as the non-metallic product consisting essentially of silicates and alumino-silicates of calcium and other bases that is developed in the molten condition simultaneously with iron in a blast furnace. ... Leachate can be described as a solution or product that is obtained when a solid

Formation of C-S-H in calcium hydroxide–blast furnace slag ...

(a) Calcium hydroxide (industrial product of ArcelorMittal in El Hadjar, Algeria). This was used with a particle size distribution giving a screen overflow of 19.2% on the 0.08 mm sieve. (b) Blast furnace slag is a by-product of the iron industry ArcelorMittal in El Hadjar (Algeria). It was ground to obtain

Synthesis of metaettringite from blast furnace slag and ...

Nov 23, 2020  Blast furnace slag (BFS) is generated as a by-product in the ironmaking process, and hence, the development of a recycling system for BFS waste is important. In this study, the calcium component of BFS obtained from a steel company in Japan was successfully used as raw material of the synthesis of metaettringite. Metaettringite has been recently considered for as an adsorbent for boron,

Phosphate Removal from Aqueous Solutions Using Calcium ...

Nov 20, 2017  Herein, we report phosphate removal from aqueous solution using a calcium silicate hydrate (CSH) adsorbent prepared from blast furnace slag (BF slag), a high-volume byproduct produced in iron-making industry. A high-surface-area CSH was synthesized through a facile two-step dissolution-precipitation method under controlled conditions (at 373 K ...

Understanding dissolution characteristics of steel slag ...

Nov 01, 2020  Basic oxygen furnace slag was found to be rich in calcium (30.7%), iron (16.9%), silicon (8.0%), and magnesium (5.5%) elements. Based on the elemental analysis, given in oxide form in the Table 1 (top row), the theoretical potential for carbon dioxide sequestration and calcium carbonate production are 377 and 766 kg/tonne of slag, respectively. In addition, recovery and recycling of iron

Immobilization of Carbon Dioxide using Blast Furnace Slag ...

Furnace Slag fused with NaOH: A Comparative Study Takaaki Wajima ... solution and precipitates as calcium hydroxide or calcium carbonate in the alkaline solution. Therefore, there is a possibility that CO 2 can be efficiently ... µm to obtain the fused slag. The chemical

(PDF) Uses of Blast Furnace Slag as Complex Fertilizer ...

The devitrification behaviour of different sizes of slag-derived glass was investigated using differential analytical techniques to determine the possibility of preparing glass-ceramic materials and recovery of silica [2,[6][7][8][9][10].Crystalline and amorphous blast furnace slag can be used as an adsorbent of phosphate from water solutions [11].

Processing of Granulated Blast Furnace Slag and its ...

The most common process for granulating blast furnace slag involves the use of high water volume, high pressure water jets in direct contact with the molten blast furnace slag at a ratio of approximately 10 to 1 by mass. The molten blast furnace slag is quenched almost immediately to form a material generally smaller than a #4 sieve.

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

steelmaking slag, and hot metal desulfurization slag [ 24]. Hall et al. have added the abovementioned slags in a 2 M ammonium chloride solution and utilized them for leaching Ca at a leaching time of 2 h. The leaching efciency of Ca ranges from 24% to 38% for a slag particle size of less than 150 m.

Synthesis and characterization of calcium carbonate ...

In this study, a procedure for producing calcium carbonate whisker through yellow phosphorus slag carbonation without adding any crystal control agents was proposed. The influence of process parameters on the crystal phase and morphology of the product was discussed. The content of aragonite in the product was more than 90% under optimal conditions. The whiteness of the product was 97.6%.

LDSF® -Calcium Aluminate flux

The design of the slag is a critical step impacting the efficiency of the steel refining process. The most common flux in secondary metallurgy processes is calcium fluoride (CaF2), which facilitates the reaction of reagents in order to obtain a liquid. However, it does not contribute to the slag composition.

US20090025614A1 - High strength magnesium slag brick and ...

This invention discloses a high strength magnesium slag brick and a method of producing the same. The high strength magnesium slag brick is composed of 60 to 80 percent by weight of furnace slag from the reduction process of a magnesium production, 15 to 25 percent by weight of crushed stones and/or pebbles, and 1 to 15 percent by weight of gypsum and/or lime.

THE - National Slag Association

Blast Furnace Slag is defined as the non-metallic product consisting essentially of silicates and alumino-silicates of calcium and other bases that is developed in the molten condition simultaneously with iron in a blast furnace. ... Leachate can be described as a solution or product that is obtained when a solid

Synthesis of metaettringite from blast furnace slag and ...

Nov 23, 2020  Blast furnace slag (BFS) is generated as a by-product in the ironmaking process, and hence, the development of a recycling system for BFS waste is important. In this study, the calcium component of BFS obtained from a steel company in Japan was successfully used as raw material of the synthesis of metaettringite. Metaettringite has been recently considered for as an adsorbent for boron,

Formation of C-S-H in calcium hydroxide–blast furnace slag ...

(a) Calcium hydroxide (industrial product of ArcelorMittal in El Hadjar, Algeria). This was used with a particle size distribution giving a screen overflow of 19.2% on the 0.08 mm sieve. (b) Blast furnace slag is a by-product of the iron industry ArcelorMittal in El Hadjar (Algeria). It was ground to obtain

Phosphate Removal from Aqueous Solutions Using Calcium ...

Nov 20, 2017  Herein, we report phosphate removal from aqueous solution using a calcium silicate hydrate (CSH) adsorbent prepared from blast furnace slag (BF slag), a high-volume byproduct produced in iron-making industry. A high-surface-area CSH was synthesized through a facile two-step dissolution-precipitation method under controlled conditions (at 373 K ...

Immobilization of Carbon Dioxide using Blast Furnace Slag ...

Furnace Slag fused with NaOH: A Comparative Study Takaaki Wajima ... solution and precipitates as calcium hydroxide or calcium carbonate in the alkaline solution. Therefore, there is a possibility that CO 2 can be efficiently ... µm to obtain the fused slag. The chemical

(PDF) Uses of Blast Furnace Slag as Complex Fertilizer ...

The devitrification behaviour of different sizes of slag-derived glass was investigated using differential analytical techniques to determine the possibility of preparing glass-ceramic materials and recovery of silica [2,[6][7][8][9][10].Crystalline and amorphous blast furnace slag can be used as an adsorbent of phosphate from water solutions [11].

A direct conversion of blast furnace slag to a mesoporous ...

In the iron manufacturing industry, it is unavoidable to produce large volumes of blast furnace slag (BFS) as a mineral residue from the preparation of pig iron in blast furnaces as well as to discharge a high volume of carbon dioxide (CO 2) gas as a result of the consumption of coke.These byproducts potentially lead to environmental problems such as ground pollution and global warming unless ...

Processing of Granulated Blast Furnace Slag and its ...

The most common process for granulating blast furnace slag involves the use of high water volume, high pressure water jets in direct contact with the molten blast furnace slag at a ratio of approximately 10 to 1 by mass. The molten blast furnace slag is quenched almost immediately to form a material generally smaller than a #4 sieve.

Characterization of Ladle Furnace Slag from Carbon Steel ...

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, and the secondary refining slag. The LF slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or an electric arc furnace (EAF). The use of the LF slag in further applications requires ...

Synthesis and characterization of calcium carbonate ...

In this study, a procedure for producing calcium carbonate whisker through yellow phosphorus slag carbonation without adding any crystal control agents was proposed. The influence of process parameters on the crystal phase and morphology of the product was discussed. The content of aragonite in the product was more than 90% under optimal conditions. The whiteness of the product was 97.6%.

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

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 CO2 sequestration. In this paper, the leaching and carbonation of electric arc furnace (EAF) slag ...

Slag - Wikipedia

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 control of ...

Calcium Carbide Applications - Carbide Industries LLC

For this application, Carbide Industries can provide the grade size of calcium carbide that best meets the requirements of a particular application. Standard sizes range from 0.5" x 0.25" (13 mm x 6.5 mm) to 10 x 40 US-mesh (2 mm x 0.4 mm). For increased ease of application, these grades are available in smaller 2 1/2 and 5 gallon containers ...

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