Iron slag is a waste product, but is used in steel sometimes. Learn more about this project here. These remains of the iron production have a beautiful and unique blue color. noun In the puddling process for making wrought-iron, the slag which forms when, as a preliminary step not always taken, air is blown down upon the surface of a charge of melted cask iron in a specially constructed hearth. Typically these feet are great for water skiingbut not greatfor running. Similarly, what is basic slag used for? (verb) Dictionary ! When coal is “fired” at over 2500 degrees it melts and produces a by-product called slag. Welding Slag is formed by metal oxides and other chemical compounds. ‘The difference in densities of the molten iron and molten slag allow each material to be removed separately from the furnace.’ ‘It was a more rustic and northern version of Detroit with escarpments of slag and iron ore.’ ‘It is usually caused by the scouring action of sand, gravel, slag… scum … Slag is waste matter separated from metal during smelting. Slag needs to be removed so that you can; 1. 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. Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded. Office of Communications and Publishing12201 Sunrise Valley DriveReston, VA 20192United StatesPhone: 703-648-4460, Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. The composition can include certain other components such as secondary oxidizers, burn rate modifiers, slag formers, and binders. Archaeological data are combined with mythological and etymological evidence to demonstrate a possible symbolic interpretation for the use of slag in funerary ritual. 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. slacke , whence G. schlacke ; originally, perhaps, the splinters struck off from the metal by hammering. Likewise, half value layer (HVL), tenth value layer (TVL) and the mean free path (mfp) for the tested samples were measured. Photograph by Nadine Piatak, USGS. Steel slag can also be produced by smelting iron ore in a basic oxygen furnace. Wrought iron, one of the two forms in which iron is obtained by smelting; the other is cast iron (q.v. 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. n.A product of smelting, containing, mostly as silicates, the substances not sought to be produced as matte or metal, and having a lower specific gravity than the latter; -- called also, esp. Large amounts of iron– and steelmaking slag and greenhouse gas are annually produced by the steel industry worldwide. n.The scoria of a volcano. slag - WordReference English dictionary, questions, discussion and forums. The layer on top of your weld left after you have welded. The iron ore is a mixture of iron oxides, silica, and alumina. We looked specifically at ferrous slag, the leftover material from the smelting of iron and steel, in the Chicago-Gary area of Illinois and Indiana. NOUN whenever manufacturing iron-ore, the scum on the surface by Evalyn Segars Report definition generally used in mention of the a female that has a revolving door to the woman bedroom. 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. More example sentences. Using Ca/Mg in the slag to capture and store the CO 2 via mineral carbonation is a promising approach to the reduction of waste emissions. It consists mostly of the siliceous and aluminous impurities from the iron ore. 0. 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. Etymology: Sw. slagg , or LG. An example of slag is the iron and silica that is removed during copper and lead smelting. Once the slag has been cooled and ground to a usable fineness it is stored and shipped to suppliers throughout the United States. Menu. Example sentences with "slag former", translation memory. Learn more. To form into slag. An example of slag is the iron and silica that is removed during copper and lead smelting. 2. Iron and steel slag refers to the type of metal manufacturing slag that is generated during the process of manufacturing iron and steel products. patents-wipo. slag meaning, definition, what is slag: a very offensive word for a woman who ha...: Learn more. What does slag mean? Etymology: Sw. slagg , or LG. But some recent research here at USGS might change slag’s poor public image. Welding Slag is formed by metal oxides and other chemical compounds. 1 Stony waste matter separated from metals during the smelting or refining of ore. ‘the burning liquid iron was forming a scum of slag’. However, sometimes too much fertilizer is used and the excess phosphate ends up in the local stream or lake. Slag inclusions are also present. (Public domain.). How to use slag in a sentence. The slag of iron blast furnaces is essentially silicate of calcium, magnesium, and aluminium; that of lead and copper smelting furnaces contains iron. To clarify: in English, slag is the mostly contaminated waste product of the iron- and steel-making process that would be inimical to agriculture. What is coal slag? Ferrous slag is currently underutilized. Look at the weld . Iron and steel slags are coproducts of iron and steel manufacturing. Iron and steel slag refers to the type of metal manufacturing slag that is generated during the process of manufacturing iron and steel products. Slag definition is - the dross or scoria of a metal. Iron slag is a waste product, but is used in steel sometimes. Definitions of Slag. slag definition: 1. waste material produced when coal is dug from the ground, or a substance produced by mixing…. The heart of the process is the blast furnace that refines iron ore into iron. 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. 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. Smelting and smithing activity also acquires a metaphoric meaning in this view of prehistoric Finnish belief in the afterlife. However, slags can contain metal sulfides and elemental metals. Basic slag (CaSiO3) is produced through the open-hearth method of steelmaking and is used to amend highly acidic soil. Slag, by-product formed in smelting, welding, and other metallurgical and combustion processes from impurities in the metals or ores being treated. 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. 0. 1 mass noun Stony waste matter separated from metals during the smelting or refining of ore. ‘the burning liquid iron was forming a scum of slag’. The iron ore is a mixture of iron oxides, silica, and alumina. We looked specifically at ferrous slag, the leftover material from the smelting of iron and steel, in the Chicago-Gary area of Illinois and Indiana. It is produced in large quantities during steel-making operations that use electric arc furnaces. The iron from Ängelsberg was known as top quality in the modern world. Phosphate is an important nutrient for plants and is a key ingredient in most fertilizers. Subscribe to receive an email notification when a publication is added to this page. slag former. Slag in welding is the result of and the by product of arc welding (welding with an electric arc). for the 60Co. It is also important to know that from where this stone derived its unique blue color. patents-wipo . ‘The hardened matter was slag, a waste product from metal working, and contained evidence of iron, copper and lead manufacture.’. Q: Will using DISPERSIT mean that most of the slag and dross in the melt will float to the surface, making it easier to remove during de-slagging? Slag definition is - the dross or scoria of a metal. With excess phosphate in water being a significant issue in the Chicago-Gary area, this benefit from slag could be another use for the material and could decrease the need to mine new natural materials for water treatment applications. n.The dross, or recrement, of a metal; also, vitrified cinders. WikiMatrix . Acid mine drainage can happen when air and water mingle with various minerals such as iron sulfide (also known as pyrite or Fool’s Gold), creating sulfuric acid. Although the construction industry does use some slag as an aggregate, most is simply discarded. ).Wrought iron is a soft, ductile, fibrous variety that is produced from a semifused mass of relatively pure iron globules partially surrounded by slag.It usually contains less than 0.1 percent carbon and 1 or 2 percent slag. The slag of iron blast furnaces is essentially silicate of calcium, magnesium, and aluminium; that of lead and copper smelting furnaces contains iron. Using Ca/Mg in the slag to capture and store the CO 2 via mineral carbonation is a promising approach to the reduction of waste emissions. Word used to describe unusually flat-bottomed feet(flat-footedness). Verb (1) convert into slag. iron slag meaning in Hindi with examples: लौह मल ... click for more detailed meaning in Hindi with examples, definition, pronunciation and example sentences. Similarly, what is basic slag used for? However, slag could be used to treat acid soils or acid mine drainage. The Swedish blue slag is the by-product of iron which is derived from a unique method of production. Iron and steel slags are coproducts of iron and steel manufacturing. 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 … Slag consists mostly of mixed oxides of elements such as silicon, sulfur, phosphorus, and aluminum; ash; and products formed in their reactions with furnace linings and fluxing substances such as limestone. 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. 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 blast furnace is a closed system into which iron-bearing materials (iron ore, sinter, and pellets), fluxing additives (slag formers such as limestone or dolomite), and a reducing agent (coke) are continually added to the top of the furnace shaft through a charging system that prevents the escape of blast furnace gas. Though less frequent, 'slag' may also be placed on guys just … Slag. Or it could mean it either produces two steel plus one slag or just one steel per iron + coal input. slagged v past verb, past simple: Past tense--for example, "He saw the man." iron slag in Chinese : :铁溶渣…. 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. The compound obtained by the reaction of oxygen on iron. Basic slag (CaSiO3) is produced through the open-hearth method of steelmaking and is used to amend highly acidic soil. in iron … n.A product of smelting, containing, mostly as silicates, the substances not sought to be produced as matte or metal, and having a lower specific gravity than the latter; -- called also, esp. This stuff is boiler slag, which is a recycled product from coal burning plants. See more. Results of this investigation indicated that the strength properties of mortars increased significantly upon replacing sand partially by iron slag. However, slag could be used to treat acid soils or acid mine drainage. More example sentences. ‘In highly developed countries, the major components of industrial waste are blast furnace and steel slag, … … Sentence Examples. Used to describe unpleasent situations.2. Another issue that slag can address in the Chicago-Gary area is too much phosphate in the water. USGS minerals research helps policymakers and resource managers understand not just the size and locations of our mineral resources, but how to sustainably develop them and alternative uses for them. From this and the added fluxing agents molten slag and iron are formed. This is totally ambiguous: it could mean the mill either produces three steel or it produces two steel plus one slag per iron + coal imput. earths, and the slag 64.6 and 2 7.45% of the same respectively. What does slag mean? Slag is a coating. n.The scoria of a volcano. The ingredients are heated to nearly 1500 degrees Centigrade to form two components: iron and molten slag.