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 is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ...

how to obtain solution for calcium in furnace slag

how to obtain solution for calcium in furnace slag. BLAST - National Slag Association- how to obtain solution for calcium in furnace slag,calcium and other bases, that is developed in fuel Two products are obtained from the furnace: molten iron and slag The slag solution series of akermaniteSteel Plant Training Course - AnfacalIn the electric arc furnace practice it is common to …

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.

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.

Phosphate Removal from Aqueous Solutions Using Calcium ...

depleted in the near future. 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 pro-duced in iron-making industry. A high-surface-area CSH was synthesized through a …

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.

Minerals | Free Full-Text | Preparation of Silica-Alumina ...

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. The co-production of value-added materials from these ...

Sulfate resistant ground granulated blast furnace slag ...

May 14, 2013· A ground granulated blast furnace slag for sulfate resistant cement comprising a mixture of ground granulated blast furnace slag with an alumina content of 12 to 17.5 mass % and high dissolution rate gypsum of 2 to 6 mass % of gypsum converted to mass of SO 3.

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 ...

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

The liquid slag is rapidly cooled by quenching to obtain an almost completely amorphous material. ... on the strength development of a binder composed of 85% blast furnace slag, 10% calcium hydroxide, ... The lower the amount of acetate ions in solution, the less calcium …

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.

CN103343174B - Method for separating titanium, iron ...

The present invention belongs to the field of metallurgy, in particular to a method of separating titanium mixed titaniferous slag from a calcium-containing vanadium. The method of the present invention is blast furnace slag flowing liquid melt mouth titanium-vanadium slag and converter slag containing mixed to form a mixed slag, blowing an oxidizing gas to the mixed melt, after blowing gas ...

Steel Converter Slag as a Raw Material for Precipitation ...

In this work we study the possibility of utilizing steel converter slag, a byproduct of steel manufacturing, for production of pure calcium carbonate. The dissolution of calcium from steel converter slag by using acetic acid as a solvent and the precipitation of pure calcium carbonate from the resulting solution were experimentally investigated.

Slag - Wikipedia

As the slag is channeled out of the furnace, water is poured over it. This rapid cooling, often from a temperature of around 2,600 °F (1,430 °C), is the start of the granulating process. This process causes several chemical reactions to take place within the slag, and gives the material its …

Calcium Carbide Applications - Carbide Industries LLC

Calcium carbide is converted into acetylene in a controlled reaction with water using an apparatus called a generator. Acetylene, which has the chemical formula C2H2, is an extremely useful hydrocarbon due to the energy that is locked up in the triple-bond between the carbon atoms.

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 ...

GENERAL INFORMATION Iron & Steel Slags about NSA …

the slag which was pouring out of their furnaces. In 1908 Carnegie Steel began an investigation "to ascertain what could be done to use this by-product of its blast furnaces". As early as 1911 a Carnegie report, "Furnace Slag in Concrete", established a position for slag as a suitable product for use as an aggregate in concrete.

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 …

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 …

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

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 …

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.

blast furnace slag under pressurized CO2 atmosphere ...

blast furnace slag under pressurized CO2 atmosphere Seong-Ho Lee a, ... precipitation ratio of calcium carbonate by the carbonation of the unreacted calcium ions in the solution. In this study,

Investigation of Phosphate Removal Capability of Blast ...

May 16, 2019· Blast Furnace Slag (BFS) is a by-product of iron making with a potential to be used in different applications. In this research, BFS is used to investigate the …

Foamy Slag Fundamentals and their Practical Application …

Foamy Slag Fundamentals and their Practical Application to Electric Furnace Steelmaking Eugene B. Pretorius and Robert C. Carlisle Baker Refractories York, PA Abstract This paper will define the slag compositions required to obtain and control optimum foamy slag conditions in the Electric Furnace.

Carbide Slag Recycling Solution

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 .

Steel Slag - an overview | ScienceDirect Topics

To obtain rapid cooling so as to obtain a vitreous structure, the slag is granulated. After that, the ABS is ground to sizes below 100 μm. ... For blast furnace slag, rapid cooling results in a noncrystalline structure with a high amount of glass, which is responsible for its hydraulic activity. ... in the composition of steel slag, calcium ...

Slag and its Role in Blast Furnace Ironmaking – IspatGuru

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 …

calcium chloride manufacturing process from waste slag

how to obtain solution for calcium in furnace slag. Dissolution of slags in water and calcium chloride . The amounts of dissolved Si, Ca, and Mg increased with decreasing solution pH. The solubility of the convertor slag was highest amount the tested slags in terms of the percentage of dissolved Si to total Si in the slag when solution pH was ...

In the metallurgy of iron, when limestone is added to the ...

The correct option (a) slag. Explanation: In blast furnace, the lime stone is decomposed to give lime and carbon dioxide. The lime obtained act as flux and combines with silica to form calcium silicate (slag).

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,