coalbridge slag containing carbon

Conditions for entrainment into a FeOx containing slag for ...

Whether a carbon-containing particle of a given size would settle at the boundary on the slag layer or get entrapped inside the slag depends on many factors such as the angle of contact slag ...

Learn More

Carbonation of steel slag for CO2 sequestration: leaching ...

Apr 15 2006 · Carbonation of industrial alkaline residues can be used as a CO2 sequestration technology to reduce carbon dioxide emissions. In this study steel slag samples were carbonated to a varying extent. Leaching experiments and geochemical modeling were used to identify solubility-controlling processes of major and trace elements both with regard to ...

Learn More

Carbon Solubility in the CaO-SiO 2 -3MgO-CaF 2 Slag System ...

Mar 05 2014 · The carbon solubility in the CaO-SiO2-3MgO-CaF2 slag system at 1773 K (1500 °C) was investigated under CO/Ar and CO/N2 gases. Higher extended basicity [(CaO + MgO)/SiO2) increased the carbon solubility in the slag as the activity of free oxygen ions ( $$ varvec{a}_{{{mathbf{O}}^{2 - } }} $$ a O 2 - ] promoted the reaction of the free carbide mechanism. Higher CaF2 also resulted in higher ...

Learn More

Carbonation of steel slag for CO2 sequestration: leaching ...

Apr 15 2006 · Carbonation of industrial alkaline residues can be used as a CO2 sequestration technology to reduce carbon dioxide emissions. In this study steel slag samples were carbonated to a varying extent. Leaching experiments and geochemical modeling were used to identify solubility-controlling processes of major and trace elements both with regard to ...

Learn More

Microscopic Study of Carbon Surfaces Interacting with High ...

The interaction of carbon materials with molten slags occurs in many pyro-metallurgical processes. In the production of high carbon ferromanganese in submerged arc furnace the carbothermic reduction of MnO-containing silicate slags yields the metal product. In order to study the interaction of carbon with MnO-containing slags sessile drop wettability technique is employed in this study to ...

Learn More

Selective Leaching of Steelmaking Slag for Indirect CO2 ...

Jan 29 2010 · Indirect CO2 mineral sequestration which could make CO2 fixate into precipitated calcium carbonate (PCC) of value-added products is an important technology that is used to reduce greenhouse gas emissions economically. It can be conducted in two steps one of which has been investigated in the previous paper. In this work extraction of calcium ions from steelmaking slag using a novel ...

Learn More

Characteristics of High-Carbon-Content Slag and ...

Oct 20 2020 · Fine slag and coarse slag are the byproducts of the entrained-flow gasifier which may contain a considerable amount of carbonaceous residue. In this study the characteristics of slags (LHA LHB and GT) from three commercial gasifiers were collected and studied. The coal-water slurry (CWS) blended with these different slags (5 wt %) was investigated in detail including the apparent ...

Learn More

Production of precipitated calcium carbonate (PCC) from ...

Dec 01 2013 · Producing precipitated calcium carbonate (PCC) from steelmaking slag is a technology that contributes to the reduction of carbon dioxide emissions from iron and steel industries. While the carbon dioxide emissions from the sector are large it could benefit from this option by utilizing its own by-products i.e. steelmaking slags for fixation ...

Learn More

Influence of composition of slag and carbonaceous ...

Nov 03 2003 · In the present study wettability of slag/carbon systems has been investigated by measuring the variation in dynamic contact angle at the slag/carbon interface with time for different slag compositions and carbonaceous materials at 1500°C. The influence of liquid and solid composition on wetting has been discussed.

Learn More

A Slag Management Toolset for Determining Optimal Coal ...

Nov 25 2016 · NETL has built a slag management toolset to determine the optimal temperature range for gasification of a carbon feedstock. This toolset is based on a viscosity database containing experimental data and a number of models used to predict slag viscosity as

Learn More

The Carbon Cost of Slag Production in the Blast Furnace: A ...

Feb 05 2016 · The quality of raw materials (iron ore coal and coke) has a clear impact on the carbon emissions of the hot metal production in steel making. So far very little work has been done to measure and quantify this impact. Yet for benchmarking technology choice and general carbon optimization are important elements. The total slag production of a blast furnace gives an accurate and relevant ...

Learn More