Opening Hours : Providing solution design within 24 hours

Call Now

0086-21-58385887

Iron Slag Management Process

  • Home
  • Iron Slag Management Process

12 3 Primary Copper Smelting

Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces Flash furnace slag is treated in a slag cleaning furnace with coke or iron sulfide Because copper has a higher affinity for sulfur than oxygen the copper in the slag (as copper oxide) is converted to copper sulfide


Get Price

Blast Furnace Slag

Blast furnace slag is a nonmetallic coproduct produced in the process It consists primarily of silicates aluminosilicates and calcium-alumina-silicates The molten slag which absorbs much of the sulfur from the charge comprises about 20 percent by mass of iron production


Get Price

Practical Bloomery Smelting

Bloomery run with a blast of Bloomery run with a blast of 4 - 8 l/min/cm2 1 2 – 1 5 l/min/cm2 2) Slag as a physical chemical and thermal resource Slag fulfills two physical functions in a furnace protection and transportation Molten slag coats and protects reduced iron particles from reoxidation


Get Price

Blast Furnace Slag

Blast Furnace Slag - Material Description ORIGIN In the production of iron iron ore iron scrap and fluxes (limestone and/or dolomite) are charged into a blast furnace along with coke for fuel The coke is combusted to produce carbon monoxide which reduces the iron ore to a molten iron product


Get Price

Slag

Corrosionpedia explains Iron Slag Abrasive During the smelting process the iron is placed into a blast furnace that is also loaded with limestone The heated limestone forms calcium oxide which then attaches to the silicon present in the iron ore Iron slag abrasive is used in a variety of applications such as cleaning stone or brick surfaces


Get Price

Blast Furnace Slag

Blast furnace slag is a nonmetallic coproduct produced in the process It consists primarily of silicates aluminosilicates and calcium-alumina-silicates The molten slag which absorbs much of the sulfur from the charge comprises about 20 percent by mass of iron production


Get Price

What is Slag? (with pictures)

Jul 14 2019Slag is a byproduct of metal smelting and hundreds of tons of it are produced every year all over the world in the process of refining metals and making alloys Like other industrial byproducts slag actually has many uses and rarely goes to waste It


Get Price

Redefining Waste

Iron slag is less dense than the molten iron in the large melters and so floats on top of the iron This allows the slag to be tapped (poured) from the melter separately Steel aggregate is produced in the vanadium recovery unit and the oxygen blowing furnace In these processes steel slag rises to the surface of the ladle or furnace after oxygen has been blown into the hot metal resulting in oxidisation


Get Price

HOW A BLAST FURNACE WORKS

3) Magnesia (MgO) or Calcia (CaO) that entered with the iron ore pellets sinter or coke The liquid slag then trickles through the coke bed to the bottom of the furnace where it floats on top of the liquid iron since it is less dense Another product of the ironmaking


Get Price

Ground Granulated Blast Furnace Slag (GGBS)

May 09 2018The iron ore is reduced to iron in that temperature and all other materials form a slag and floats on the top of iron This slag is periodically tapped off as a molten liquid and then rapidly quenched with large volumes of water This process optimizes the cementitious properties and produces granules like coarse sand This granulated slag is


Get Price

Blast furnace

The process of making iron is simple Iron ore is basically iron oxide Iron is made by removing the oxygen This leaves crude iron called pig iron This process of removing oxygen is called smelting Carbon is used in the reduction process with the ore heated to a high temperature


Get Price

iron slag management process

What is an Iron Slag Abrasive? Definition from Calcium silie another name for iron slag abrasive is formed from the smelting of iron ore During the smelting process the iron is placed into a blast furnace that is also loaded with limestone The heated limestone forms calcium oxide which then attaches to the silicon present in the iron ore


Get Price

Iron Extraction Process

Iron Extraction Process In the blast furnace process the first step on the way towards heavy plate pig iron is produced from iron ore The composition of the ore and additions is accurately adjusted to the final products of AG der Dillinger Httenwerke and Saarstahl AG


Get Price

Slag Handling Slag Processing

TMS International is the North American leader in slag processing and metal recovery Our pioneering technologies process slag a by-product of steelmaking into useful environmentally beneficial aggregate products Applications include road construction asphalt ready-mix concrete cement railway ballast mining filtration and agriculture


Get Price

A Slag Management Toolset for Determining Optimal Coal

@article{osti_1433617 title = {A Slag Management Toolset for Determining Optimal Coal Gasification Temperatures} author = {Kwong Kyei-Sing and Bennett James P } abstractNote = {Abstract Gasifier operation is an intricate process because of the complex relationship between slag chemistry and temperature limitations of feedstock materials and operational preference


Get Price

Common Uses for Slag

Slag's ain't Slag's The physical and chemical properties of mineral wool insulation also known as slag wool are major factors in their utility as residential and commercial insulation pipe and process insulation insulation for ships mobile homes domestic cooking appliances and


Get Price

Control of Slag and Insoluble Buildup in Ladles Melting

The composition of slag varies with the type of melting process used and the type of iron or steel being melted The cleanliness of the metallic charge often consisting of sand-encrusted gates and risers from the casting process or rust- and dirt-encrusted scrap significantly affects the type of slag formed during the melting operation


Get Price

Gold Smelting Refining Process

Slag appearance is a good indicator of the process Although iron minerals have influence on color slag it is possible to draw some conclusions according to the color For example a blue color is symptom of copper minerals The presence of manganese minerals is note for a lavender color slag


Get Price

Extraction of Iron

The extraction of iron from its ore is a long and subdued process that helps in separating the useful components from the waste materials such as slag What happens in the Blast Furnace? The purpose of a Blast Furnace is to reduce the concentrated ore chemically to its liquid metal state


Get Price

Using FeO

Fig 5 presents EDS analysis of raw iron slag and iron slag after used as a heterogeneous catalyst for above advanced oxidation processes The Fig 5 a shows the presence of O S Si Fe and Zn elements with various fraction ratios of 61 47% 6 39% 6 12% 22 95% and 2 04% respectively for raw iron slag


Get Price

SLAG ANALYSIS SOLUTIONS

Slag usually consists of metal oxides and acts as • a destination for impurities • a thermal blanket (stopping excessive heat loss) • an erosion reducer for the refractory lining of the furnace Effective steel production goes hand-in-hand with effective slag control • production capacity (number of heats) •R ra


Get Price

Guidelines for management of iron and steel slag products

When the Guidelines were revised in October 2007 the Japan Iron and Steel Federation created the Management Guidelines for Iron and Steel Slag for which Processing is Entrusted to an Industrial Waste Processing Agent for use with iron and steel slag which is not processed by a company itself and which is processed as waste


Get Price

Technical Report UDC 669 184 28 Development of Steam

recycled resource (Waste Management and Public Cleansing Law) was enacted Under this Law slag produced secondarily in the iron and steel making process was designated as one of the by-products and the development of its usage and improvements in quality were obligated As for the effective utilization of iron and steel slag vari-


Get Price

Ironmaking 101

Oct 10 2017Ironmaking Blast Furnace The molten iron is tapped off the very bottom of the blast furnace and cast into hot metal or pig iron ingots The slag byproduct or waste consists of mainly of calcium silicate with varying amounts of aluminum oxide magnesium oxide iron oxide and sulfur The byproduct slag has a variety of end-uses such as slag cement


Get Price

Control of Slag Defects and Insoluble Buildup in Melting

The compositions of slags vary with the process used and the type of iron or steel being melted The cleanliness of the metallic charge often including sand-encrusted gates and risers from the casting process or rust-and dirt-encrusted scrap significantly affects the type of slag formed during melting


Get Price

Viability of Slag on The Strength Of Concrete A Review

Slag is mainly composed of two types i e Steel Slag and Iron Slag Steel slag is a waste material which is acquired within the process of basic oxygen steel (BOS) where high pressure is blown in to the vessel containing molten iron steel


Get Price

How is LD slag produced?

Slag is not a random product but rather a consequence of the Linz-Donawitz process which uses steel as well as LD slag The slag is separated from the crude steel separately processed and its chemical composition analyzed At the end of the process the main components of the slag are iron oxide calcium oxide and silicon dioxide Iron and


Get Price

Creating Iron

The more advanced way to smelt iron is in a blast furnace A blast furnace is charged with iron ore charcoal or coke (coke is charcoal made from coal) and limestone (CaCO 3 ) Huge quantities of air blast in at the bottom of the furnace and the calcium in the limestone combines with the silicates to form slag


Get Price

Draft Guidance Iron and Steel Slag Exemptions from the

The purpose of this document is to provide guidance regarding the conditional exemptions of iron and steel slag from regulation as a solid waste under 2017 Wisconsin Act 285 Effective April 17 2018 iron and steel process slag is exempted from the definition of "solid waste" located in s 289 01(33)


Get Price

Utilization of Solid Waste from Steel Melting Shop

Generally for integrated steel plant each ton of liquid steel needs about 2 8 tonnes of raw materials 2 5 tonnes of water and 5 tonnes of air The outcome from iron and steelmaking process is 8 tons of moist dust laden gases 0 5 ton of effluent water 0 4 to 0 8 ton of solid waste besides one ton of liquid steel


Get Price