Each year, about 45 million tonnes of ferrous slag (iron and steel slag) is … It is rich in lime and contains 14 to 20 per cent of phosphoric acid. V. Neufeldt. Basic slag Basic slag. Basic slag is a by-product of the steel industry which, when finely ground, is used as a fertilser. furnace by specially designed slags prior to refining in a basic oxygen furnace, has reduced tap-to-tap time, lowered cost and produced steel of much higher quality. Phosphorus Fertilizers mineral and organic substances that contain phosphorus and that are used for improving the nutrition of plants. Ferrous slag is the by-product of iron and steel manufacturing. Slag application increased soil pH linearly, especially where fertilizer was not applied. Traductions dans le dictionnaire français - anglais. nom. In China, the first steel slag fertilizer program invested by Taiyuan Iron and Steel Group and Harsco Corporation of the USA started building in 2011 . The following article is from The Great Soviet Encyclopedia (1979). Basic slag (P2O5) Ground rock dir. Of the various fertilizers using steelmaking slag as a raw materi-al, the most typical one is “slag silicate fertilizer.” Silicate fertilizer is the world’s first fertilizer specification established in 1955 in … The LD slag contains about 1-3 wt% of P2O5, which is too low to be used as phosphate fertilizer, but, at the same time, it is too high to be used in the BF or recycled in the sinter plants. basic slag: translation /beɪsɪk ˈslæg/ (say baysik 'slag) noun non-siliceous or base-forming slag used for lining furnaces to remove impurities in pig iron during steelmaking. applic. At the maximum recommended rate of 1.5 tonnes/acre, it provides around 60 units of available phosphate together with magnesium, iron, manganese, sulphur and a wide range of trace elements essential for healthy crops and animal wellbeing. The steel slag fertilizer was applied as the basic fertilizer in each season before rice transplanting. The current steelmaking process is based on the Basic Oxygen Steelmaking process, where a basic slag is produced in the Linz-Donawitz converter. Potassium chloride (K2O) Potassium … Here, we reported the toxicity assessment of Mo slag as a mineral fertilizer for slag recycling in agricultural practices. It is largely limestone or dolomite which has absorbed phosphate from the iron ore being smelted. [1885 90] * * * … Universalium. The 7500 kg rate, without NPK fertilization, increased soil pH from 5.3 to 6.5. Super Slag Basic has similar neutralising properties to that of ground limestone and is applied to the land at a similar rate, appropriate to its pH level. n. an alkaline slag that is formed while making steel, used as a fertilizer, in cement, etc. It arises from the conversion of ores to iron, hot iron to steel, from melting scrap in an electric arc furnace or from the subsequent treatment of crude steel. Super Slag Basic has similar neutralising properties to that of ground limestone and is applied to the land at a similar rate, appropriate to its pH level. The signs were diffuse and difficult to interpret. Steelmaking slag can be further subdivided into hot-metal pretreatment and basic oxygen furnace slags. is that of basic oxygen furnace slag. Australian English dictionary. Because of the slowly released phosphate content, and because of its liming effect, it is valued as fertilizer in gardens and farms in steelmaking areas. Mainly heifers, and some cows, were fed with basic slag-contaminated fresh hay. basic slag synonyms, basic slag pronunciation, basic slag translation, English dictionary definition of basic slag. It might be outdated or ideologically biased. When 3000 kg ha −1 of slag was applied, the increase in soil pH was accompanied by a decrease of AI saturation percentage in the cation exchange complex, to <10%. Basic slag vs. superphosphate of lime. Define basic slag. The use of synthetic slags in ladle refining techniques subsequent to decarburization in the basic oxygen furnace has resulted in reduced hydrogen and nitrogen contents and reduced solute impurities. basic slag . Basic slag definition, slag formed by the basic process of steelmaking, used as a furnace or converter lining or as a fertilizer. Phosphorus fertilizers are the only means for replenishing phosphorus in soil. scorie de déphosphoration. First, steel slag fertilizer was incorporated well with 5.0 kg soil in each plastic pot. The first signs of illness appeared 11 days later, and the first case of death appeared 14 days after the initial clinical signs. Home. [William H Hill; OAC Review Index.] basic slag — Metall. To flux the silica produced during steelmaking, limestone and/or dolomite are added, as well as other types of slag conditioners such as calcium aluminate or fluorspar. basic slag. Basic slag is a co-product of steelmaking, and is typically produced either through the blast furnace - oxygen converter route or the electric arc furnace - ladle furnace route. Additionally, steel slags have been used as a low-cost source to supply Si to rice plants . 285 basic slag products are offered for sale by suppliers on Alibaba.com, of which refractory accounts for 51%, welding rods accounts for 2%, and pumps accounts for 1%. New Phosphatic Fertilizer from Basic Slag, Hydrochloric Acid, and Rock Phosphate The fertilizer was laid on the surface without being ploughed in. afficher. Total P2O5 Straight Total P2O5 Compound Grand Total P2O5: Potash . Afficher les traductions générées par algorithme. Basic slag. Search for Library Items Search for Lists Search for Contacts Search for a Library. Fertilizer using converter slag: Dry field farming: Creates a general soil fertilizer containing a good balance of various fertilizer components needed by crops, including silicate, iron oxide, lime, magnesia, phosphate, manganese, and boron. basic slag — /beɪsɪk ˈslæg/ (say baysik slag) noun non siliceous or base forming slag used for lining furnaces to … Définition . basic slag. Search. Evaluation of phosphate fertilizers: II. English World dictionary. A by-product from the manufacture of steel by the basic process, used as a fertilizer. A wide variety of basic slag options are available to you, such as 1770° refractoriness 2000°, common (1580° refractoriness 1770°), and super-class (refractoriness> 2000°). WorldCat Home About WorldCat Help. Basic slag is a by-product of steelmaking and is mainly lime so the same rules as when applying other lime i.e you should not apply manure at the same time. Residual value of nitrophosphates, Gafsa rock phosphate, basic slag and potassium metaphosphate for potatoes, barley and swedes grown in rotation, with special reference to changes in soil phosphorus status - Volume 70 Issue 2 - G. E. G. Mattingly basic slag of Chapter. ALL PRODUCTS: Straight products. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. See more. Basic slag definition is - a slag low in silica and high in base-forming oxides that is used in the basic process of steelmaking and that is subsequently useful as a fertilizer. 2014. Basic slag used to contain a lot of phosphate when produced from the old Bessimer process but I think the modern furnaces produce slag with much less. Slags are calcium and magnesium silicates, which show neutralizing action due to SiO 3 2− base . Create lists, bibliographies and reviews: or Search WorldCat. These pots were incubated for 30 days after addition of slags and watered daily with distilled water to maintain 2–3 cm submergence throughout the experimental period. (P2O5) Single superphosphate (P2O5) Triple superphosphate (P2O5) Other P straight (P2O5) Compound products. The former has been known to contain over 20% silicic acid, where it is used as a raw material for silicate fertilizer. les scories de déphosphoration du chapitre. Called also Thomas slag, phosphatic slag, and odorless phosphate. slag silicate fertilizer, byproduct lime fertilizer, and slag phosphate fertilizer are specified (Tables 1–3 3)). slag formed by the basic process of steelmaking, used as a furnace or converter lining or as a fertilizer. Basic slag arising from the manufacture of iron or steel for phosphate fertilizer and other use @AGROVOC Thesaurus Traductions devinées. Ammonium phosphate (P2O5) Other NP (P2O5) P K compound (P2O5) N P K compound (P2O5) Totals. Basic slag definition: a furnace slag produced in steel-making, containing large amounts of calcium phosphate :... | Meaning, pronunciation, translations and examples Over 20 % silicic acid, where it is largely limestone or dolomite which has absorbed phosphate the! Index. in agricultural practices without NPK fertilization, increased soil pH linearly, especially fertilizer. Process, used as a furnace or converter lining or as a fertilizer or lining. 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