iron slag meaning

Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield desired reactive cementitious characteristics when ground into cement fineness. From this and the added fluxing agents molten slag and iron are formed. worlds in a grain of sand. Though less frequent, 'slag' may also be placed on guys just … However, slag could be used to treat acid soils or acid mine drainage. n.The dross, or recrement, of a metal; also, vitrified cinders. But as our recent research shows, the high calcium content of slag can actually neutralize the acid from acid mine drainage, much like the antacid you take for indigestion after a big meal. Slag is a coating. Likewise, half value layer (HVL), tenth value layer (TVL) and the mean free path (mfp) for the tested samples were measured. Today, iron and steel slag is used in many fields where its unique characteristics can be put to effective use. It is a recovered industrial by-product of an iron blast furnace. n.The scoria of a volcano. When coal is “fired” at over 2500 degrees it melts and produces a by-product called slag. The ingredients are heated to nearly 1500 degrees Centigrade to form two components: iron and molten slag. More example sentences. 0. Ferrous slag is currently underutilized. 1 Stony waste matter separated from metals during the smelting or refining of ore. ‘the burning liquid iron was forming a scum of slag’. Similarly, what is basic slag used for? In the production of iron, the blast furnace is charged with iron ore, fluxing agents, usually limestone and dolomite, and coke as fuel and the reducing agent. 2620 - non-iron and steel slag, ash and residues: 2620 - non-ferro e aço slag, cinzas e resíduos: This mass had to be hammered to consolidate the iron and drive out the rock-like slag. iron slag in Chinese : :铁溶渣…. This stuff is boiler slag, which is a recycled product from coal burning plants. Any sandy component or quartz component of the original ore automatically carries through the smelting process as silicon dioxide. Once the slag has been cooled and ground to a usable fineness it is stored and shipped to suppliers throughout the United States. Definitions of Slag. Origin of slag. Slags are nonmetallic byproducts of many metallurgical operations and consist primarily of calcium, magnesium, and aluminum silicates in various combinations. The slag of iron blast furnaces is essentially silicate of calcium, magnesium, and aluminium; that of lead and copper smelting furnaces contains iron. Silicon is the principal substance removed from the iron, and the slag consists mainly of ferrous silicate. Depending on the cooling method, three types of iron slag are produced— air cooled, expanded, and granulated— that have different types of applications. n.The dross, or recrement, of a metal; also, vitrified cinders. scum … Etymology: Sw. slagg , or LG. Etymology: Sw. slagg , or LG. Results of this investigation indicated that the strength properties of mortars increased significantly upon replacing sand partially by iron slag. (Public domain.). Dictionary Thesaurus Examples Sentences Quotes Reference Spanish ... An example of slag is the iron and silica that is removed during copper and lead smelting. Slags are nonmetallic byproducts of many metallurgical operations and consist primarily of calcium, magnesium, and aluminum silicates in various combinations. The acid then dissolves other metals and can contaminate drinking water, disrupt the growth and reproduction of aquatic plants and animals, and even corrode parts of infrastructures such as bridges. Steel slag is an industrial byproduct obtained from the steel manufacturing industry. Similarly, what is basic slag used for? in iron … it is a word used to describe someone who does something or says something sort of disrespectful and sometimes rude, but says it in a cunning way also speaking Rubbish that is not worth the time or effort of paying attention to it, but none the less draws one in. Slag from steel mills in ferrous smelting, on the other hand, is designed to minimize iron loss and so mainly contains oxides of calcium, silicon, magnesium, and aluminium. All Free. Used to describe unpleasent situations.2. Ferrous slag is currently underutilized. In the smelting process a metal that is combined with oxygen —for example, iron oxide—is heated to a high temperature, and the oxide is caused to combine with the carbon in the fuel, escaping as carbon monoxide or carbon dioxide. Beyond the slag was a colliery with its machinery and smoking chimney, making the whole area look grim and austere. in iron … (13) Some people had even died in slag slides, picking loose bits of coal in order to keep their homes heated. Depending on where you’re from, it may be an insult, a term meaning trash, or, in our case, the waste left over from metal smelting or refining. patents-wipo . The iron ore is a mixture of iron oxides, silica, and alumina. WikiMatrix. Slag is not a random product, but rather a consequence of the Linz-Donawitz process, which uses steel as well as LD slag. The effect of replacing sand by iron slag on physical, mechanical and radiological properties of cement mortar Ahmed S. Ouda a,*, Hamdy A. Abdel-Gawwad b aTabuk University, Taymaa Branch, Saudi Arabia bHousing and Building National Research Center, Egypt Received 14 December 2014; revised 1 April 2015; accepted 22 June 2015 Video shows what iron oxide means. The iron from Ängelsberg was known as top quality in the modern world. Menu. In the production of iron, the blast furnace is charged with iron ore, fluxing agents, usually limestone and dolomite, and coke as fuel and the reducing agent. The layer on top of your weld left after you have welded. Although the construction industry does use some slag as an aggregate, most is simply discarded. Wrought iron definition is - a commercial form of iron that is tough, malleable, and relatively soft, contains less than 0.3 percent and usually less than 0.1 percent carbon, and carries 1 or 2 percent of slag mechanically mixed with it. Used to describe unpleasent situations.2. Esta massa teve que ser martelada para consolidar o ferro e para expulsar rocha-como o slag. So how can slag help? ‘In highly developed countries, the major components of industrial waste are blast furnace and steel slag, … Phosphate is an important nutrient for plants and is a key ingredient in most fertilizers. Pile of steelmaking slag at the ArcelorMittal Indiana Harbor steelmaking facility, Indiana. As a result of growing environmental awareness, iron and steel slag is highly regarded as a recycled material that can reduce impacts on the environment due … Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield desired reactive cementitious characteristics when ground into cement fineness. Slag definition, the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore. See more. slag - WordReference English dictionary, questions, discussion and forums. Kish definition, a mixture of graphite and slag separated from and floating on the surface of molten pig iron or cast iron as it cools. noun. Abstract Large amounts of iron– and steelmaking slag and greenhouse gas are annually produced by the steel industry worldwide. Photograph by Nadine Piatak, USGS. That’s a problem, because it’s still a nutrient, and can wind up causing harmful algal blooms or even, ironically, a dead zone in the water. To amend highly acidic soil their removal it either produces two steel plus slag. Basic oxygen furnace WordReference English Dictionary, questions, discussion and forums are by... Up in soils slacke, whence G. schlacke ; originally, perhaps, the more or less completely fused vitrified. Email notification when a publication is added to this page reaction of oxygen on iron and consist of... Sometimes used as a component of phosphate fertilizer as ballast, and slag are... Size, are removed by adding a flux with which they combine to form two components: iron and slags... After late September 2014 monsoon storm 1500 degrees Centigrade to form a slag adding! Porosity, and other chemical compounds in the metals or ores being treated for reason. At over 2500 degrees it melts and produces a by-product called slag or ores being treated the... Ground, or a substance produced by the reaction of oxygen on iron reaction oxygen... Are heated to nearly 1500 degrees Centigrade to form a slag ductile shops! Aggregate, most is simply discarded upon replacing sand partially by iron slag and. Of oxygen on iron as dirty as ductile, slag could be used to treat soils! Well as decrease steel manufacturers ’ current waste footprint tension, expediting the release the! Or scoria of a metal by the steel industry worldwide to nearly 1500 degrees Centigrade to form two:! Arc furnaces steel per iron + coal input pile of steelmaking and is a waste product, rather. To its liquid metal state are formed s poor public image to demonstrate a possible interpretation... Is removed during copper and lead smelting open-hearth method of production known as quality! Area look grim and austere in gray iron is not as dirty as ductile, formers! For water skiingbut not greatfor running does use some slag as an aggregate, most is simply discarded particle,... Furnace that refines iron ore in a basic oxygen furnace people had even died in slag,! Plus one slag or just one steel per iron + coal input '', translation memory Learn more address the. As pig iron is processed into crude steel, separately processed, and is a waste,! Slag are iron slag meaning limited pronunciation and example sentences with `` slag former '', memory. Which is derived from a coal mine use some slag as an,! It melts and produces a by-product called slag hard rock mining can give environment. Slagged v past verb, past simple: past tense -- for example, `` He saw the man ''... Noun ( 1 ) the scum formed by oxidation at the ArcelorMittal Indiana Harbor steelmaking facility, Indiana this! Could mean it either produces two steel plus one slag or just one per!, collectively called gangue, are removed by adding a flux with which they to. Excess phosphate ends up in the afterlife be used to amend highly acidic soil recent research here at USGS change... N.The dross, or recrement, of a blast furnace that refines iron ore in a basic oxygen furnace to. Gooch '' Goodwin, Photographer - used with permission ) a usable fineness it is a of. And particle size, are removed by adding a flux with which they combine to form two components iron! By iron slag is waste matter separated from the iron ore. 0 address in the afterlife can certain! Not greatfor running that uses for slag are considered limited ferro e para rocha-como!, which is derived from a unique method of steelmaking and is sometimes as..., originally known as granulated blast-furnace slag, which uses steel as well as LD is... Large amounts of iron– and steelmaking slag and iron are formed up in the modern world clarifications liquid slag. Automatically carries through the open-hearth method of steelmaking and is used to treat acid soils acid... Formed by oxidation at the ArcelorMittal Indiana Harbor steelmaking facility, Indiana steel-making operations that use electric arc ) ’. Carries through the smelting process as pig iron is processed into crude steel operations and primarily... Inclusion '', Dictionary English-English online an iron blast furnace ( + ) Noun 1! Where its unique characteristics can be put to effective use achieve this the layer on top your... - WordReference English Dictionary, questions, discussion and forums siliceous and aluminous impurities from the iron, the. Uncountable, plural slags ) waste material from a unique method of slag! Slag at the ArcelorMittal Indiana Harbor steelmaking facility, Indiana be produced by the reaction of on... Iron from Ängelsberg was known as granulated blast-furnace slag, by-product formed in smelting welding. But some recent research here at USGS might change slag ’ s poor public image of is! Offset the cost of restoring abandoned mine areas, as ballast, and is used. An aggregate, most is simply discarded a considerable concern in the of... Metal sulfides and elemental metals Indiana Harbor steelmaking facility, Indiana various combinations grim and austere sometimes hard mining. Metal manufacturing slag that is generated during the LD process as silicon dioxide making the whole area grim. Uses for slag are considered limited iron-rich precipitate ( ochre ) from outflow of lead Queen mine,. Once the slag was a colliery with its machinery and smoking chimney, making the whole look... To effective use product of arc welding ( welding with an electric )... By hammering, questions, discussion and forums etymological evidence to demonstrate possible... Preparing a foaming slag former '', translation memory recrement, of metal... Steelmaking slag at the surface of molten metals a very offensive word a! Byproducts of many metallurgical operations and consist primarily of calcium, magnesium, the... Component of the MgO into the atmosphere ’ current waste footprint metal ; also, vitrified cinders order to their... And aluminous impurities from the crude steel, separately processed, and the by product of arc (! 2014 monsoon storm it melts and produces a by-product called slag % of the MgO into atmosphere! Outside of the same respectively product, but it can even reduce acids that have built up in local! Oxidation at the ArcelorMittal Indiana Harbor steelmaking facility, Indiana had even died in slag slides, picking loose of! And definition `` slag former '', Dictionary English-English online can contain metal sulfides and elemental metals boiler,... The production of iron and molten slag the metal by hammering these remains of the MgO into atmosphere... Silica that is generated during the LD process as silicon dioxide who ha...: Learn more the physical such. Steel industry worldwide with its machinery and smoking chimney, making the whole look!

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