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  • (PDF) Uses of Blast Furnace Slag as Complex Fertilizer

    Uses of Blast Furnace Slag as Complex Fertilizer. ... Transforming these solid wastes from one form to another to be reused either by the same production unit or by different industrial ...

  • Fertilizers : Iron and steel slag products : NIPPON

    2011-9-8  Because blast furnace slag contains fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as calcium silicate fertilizer.In addition to these three components, steelmaking slag also contains components such as FeO, MnO, and P 2 O 5, and is used for a broad range of agricultural purposes, including dry field farming and pastures in addition to rice cultivation.

  • Technical Report UDC 669 . 184 . 28 : 631 . 82 /. 86 ...

    2015-7-27  Germany, the production of slag silicate fertilizer made from blast furnace slag began to decrease sharply in the early 1970s. According to Nippon Slag Association’s statistics on the use of slag in 2012, the total consumption of blast furnace and steelmaking slags for fer-tilizer and soil amendment was 260 000 tons.

  • Dry Granulation of Blast Furnace Slag - Steel360 News

    A rotary-cup, air-blast atomizer was built, with a cup of 100mm diameter and a speed range of 500-1500 rev/min. The slag flow rates used in the tests varied from 0.2-0.5 kg/sec. The tests were restricted to duration of around 2.5min because of the limited capacity (around 30 kg) of the laboratory slag melting furnace.

  • NIPPON SLAG ASSOCIATION

    2018-10-22  Iron and steel slag products ; Designation under Law on Promoting Green Purchasing; Production and Uses of Blast Furnace Slag in Japan [PDF:55KB] Production and Uses of Steel Slag in Japan [PDF:73KB] Amounts of Blast Furnace Slag Produced and Used in FY 2017 [PDF:69KB] Amounts of Steel Slag Produced and Used in FY 2017 [PDF:59KB]

  • Fertilizer - Euroslag

    Fertilizer. The use of fertilizers and liming materials produced from blast furnace and steel slags has a long tradition. For example Thomasphosphate had been used for more than hundred years. Silicate lime fertilisers (blast furnace lime and converter lime) are approved fertilizers in Germany since more than 60 and 30 years, respectively. They ...

  • slag as a fertilizer - barta-immobilien.de

    Because blast furnace slag contains fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as calcium silicate fertilizer.In addition to these three components, steelmaking slag also contains components such as FeO, MnO, and P 2 O 5, and is used for a broad range of agricultural purposes, including dry field farming and ...

  • Basics of slag production - Article on the slag industry ...

    2020-7-7  Air-cooled Blast Furnace SlagThe simplest treatment of the liquid slag is to lead it into a slag pit where layers build up until the pit is full. When it has fully solidified and then cooled somewhat, the slag (commonly known as air-cooled blast furnace slag or ACBFS) is excavated and transported away for further treatment (such as magnetic ...

  • Steel Furnace Slag National Slag Association

    2020-6-17  Slag is poured from the furnace in a molten state. After cooling from its molten state, steel slag is processed to remove all free metallics and sized into products. Basic Oxygen Furnace (BOF) : Oxygen is blown into the furnace vessel through a water-cooled oxygen lance oxidizing carbon and the other unwanted elements in the molten iron.

  • Blast Furnace Anatomy #1 – To the Heart of

    Blast-furnace slag is rich in silicic acid, an excellent fertilizer for rice farming. Altogether 390,000 tons of POSCO slag was used for agricultural farming in 2018. POSCO also developed POSMENT, an eco-friendly cement with a higher portion of slag which reduces CO2 emission up to 60%.