Feb 17

blast furnace use dolomite

Iron & steel - British Lime Association (BLA) part of the Mineral .Thus the main slag former in iron making is line, or dolomite rather than lime/dolomitic lime. There are however some smaller uses of lime in ironmaking: Iron ores are usually purchased as fines or as pellets. Iron ore pellets contain slagforming components, and are fed directly to the blast furnace. Iron ore fines are.blast furnace use dolomite,Specification of Dolomite for various Industrial usage - Line .(1) Iron and Steel Industry: Dolomite is used in iron and steel industry as refractory raw material and as a flux. The ISI (Is 10346&1982) has prescribed the following specifications of dolomite for use in the manufacture of refractory bricks, fettling material and for the blast furnace and sintering plants. The data pertaining to.

Share On :

fluxes for metallurgy - 911 MetallurgistFor many years in the United States, line and dolomite were transported to the steel producing centers for use in blast furnaces, lime plants, and sinter plants. The sinter plants were often located at or near steel mills to take advantage of the availability of a variety of iron-bearing raw materials, coke fines, and slag.blast furnace use dolomite,blast furnace use dolomite,UntitledSTUDY ON USING DOLOMITE INSTEAD OF LINE. AS FLUXING MATERIAL . The main flux added to iron ore sinters and iron ore pellets are line and dolomite which are considered the source of fluxing . they are not expected to impact significantly the blast furnace production in the next decade and possibly.

John Frank

Request for Quotation

21 Comment on blast furnace use dolomite

Iron and Steel - The National Lime Association

Quicklime -- both high calcium and dolomitic -- enjoys its most extensive use as a flux in purifying steel in the electric arc furnace (EAF) and basic oxygen furnace . In basic oxygen steelmaking, molten iron from a blast furnace is charged into a refractory-lined steelmaking furnace, and then oxygen is injected into molten iron.

Line and dolomite flux and their use in iron and steel plant .

May 8, 2013 . Line and dolomite flux and their use in iron and steel plant. Line is a naturally occurring mineral. The term line is applied to any calcareous sedimentary rock consisting essentially of carbonates. The ore is widely available geographically all over the world. Earth's crust contains more than.

Dolomite – Its Processing and Application in Iron and Steel Industry .

Jun 28, 2017 . The main uses of dolomite in iron and steel industry are (i) as a fluxing material (ii) for protection of refractory lining, and (iii) as a refractory raw material. .. During the production of iron by blast furnace (BF) route, dolomite is added either in the process of sintering or as a direct feed in the blast furnace.

Iron & steel - British Lime Association (BLA) part of the Mineral .

Thus the main slag former in iron making is line, or dolomite rather than lime/dolomitic lime. There are however some smaller uses of lime in ironmaking: Iron ores are usually purchased as fines or as pellets. Iron ore pellets contain slagforming components, and are fed directly to the blast furnace. Iron ore fines are.

Activation of ground granulated blast furnace slag by using calcined .

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. Page 1. Activation of ground granulated blast furnace slag by using calcined dolomite.

Uses of line and dolomite - IDEALS Illinois

Stone for Interior Use. Ashlar, Rubble, Veneering, Flag- ging, and Curbing. Monumental Stone. Disinfectants and Animal Sanitation. Dyes. Electrical Products. Epsom Salts. Explosives. Fertilizer Filler. Fill Material. Filter Stone. Flux. Blast Furnace Flux. Open-Hearth Flux. Other Fluxing Uses. Glass. Lime. Lithographic Stone.

fluxes for metallurgy - 911 Metallurgist

For many years in the United States, line and dolomite were transported to the steel producing centers for use in blast furnaces, lime plants, and sinter plants. The sinter plants were often located at or near steel mills to take advantage of the availability of a variety of iron-bearing raw materials, coke fines, and slag.

8. Dolomite - Welcome to the Web Page of Dr. PS Ranawat

For use at blast furnaces/sintering plants and for production of sintered dolomite for fettling purpose in open earth furnaces. 28% (min.) 18% (min.) 8% (max.) out of which Al2O3 should not exceed 2%. (i) For blast furnace: 25 - 27m Tolerance: +-10% (ii) For sintering plant: 0.60m +- 5% (iii) For refractory: manufacturing plant:.

Dolomite - Minerals Technologies Inc.

Dolomite has a calcium layer, then a carbonate layer, then a magnesium layer then a carbonate layer, and so on. Dolomite is harder and denser than the calcite form of calcium carbonate or line, and is more chemically inert and more impervious to acid attack. Uses For Dolomite The inherent differences between.

Line and dolomite extraction - UMG investment company

Flux line and dolomite are key components in steelmaking. Fluxes are the essential ingredient in agglomerate production and are necessary for operating blast furnaces. Line is burned to produce the lime required in the conversion process. Other application fields include the chemical and food industries and.

blast furnace use dolomite,

Dolomite | mineral | Britannica

Jan 24, 2018 . Dolomite is used as a source of magnesium metal and of magnesia (MgO), which is a constituent of refractory bricks. Dolostone is often used instead of line as an aggregate for both cement and bitumen mixes and also as a flux in blast furnaces. The use of dolostone as a flux has increased, especially.

blast furnace use dolomite,

Evaluation of Sulfate Resistance of Calcined Dolomite Activated .

This paper presents an evaluation of the resistance of ground-granulated blast-furnace slag (GGBS) activated with calcined dolomite, as a novel alkali activator, to 5% sodium sulfate attack and 5% magnesium . The results demonstrated the good potential of using calcined dolomite activated slag in resisting sulfate attack.

Dolomite - Indian Bureau of Mines

plants generally require dolomite for fettling and refractory purposes. Like line, dolomite is used as a flux in iron & steel, ferro-alloys and glass works. Few steel plants have dispensed with the use of dolomite in blast furnaces and its use in the preparation of self-fluxing sinters is found adequate for blast-furnace charge.

US7914599B2 - Slag conditioner composition, process for . - Google

Slag conditioner composition, process for manufacture and method of use in steel production .. While dolomite was a common source for MgO into the slag, the furnace lining life remained relatively short and the consumption rate of the furnace ... Other forms of more pure iron can be from pig iron and blast furnace iron.

Minerals | Free Full-Text | Effects of Dolomite on Mineral . - MDPI

Nov 2, 2017 . The MgO content of this sinter can be enhanced by adding dolomite, which improved operation of the blast furnace. The effects of MgO in the . The liquidity, desulfurization, and dealkalization capacities of the slag could be improved by using a high MgO content of sinter in the BF. The techno-economic.

Effect of Dolomite Line Powder on The Compressive Strength .

Dec 21, 2017 . Full-text (PDF) | The purpose of this work is to describe the effect of fine ground dolomite line on important physic and mechanical properties of concrete. The present examinations indicate that the use of dolomite line as component instead of line is a viable solution for producin.

The use of siderites in blast furnaces operated on unfluxed pellets .

The use of siderites in blast furnaces operated on unfluxed pellets . Roasted siderite concentrate (RSC) can be used efficiently in the blast-furnace charge to make different grades of manganese-bearing foundry iron as long as unfluxed pellets are . Dolomite Blast Furnace Siderite Coke Consumption Furnace Productivity.

Kinetic and Thermodynamic Studies on the Phosphate Adsorption .

Jan 26, 2015 . . blast furnace slag [11], and other materials. It is well recognized that dolomite is an effective and low-cost adsorbent for phosphate. However, related studies of adsorption mechanism of dolomite, such as the kinetic and thermodynamic adsorption of phosphate by dolomite minerals, had not been reported.

Dolostone, Rocks and Minerals, Kentucky Geological Survey

Aug 1, 2012 . Dolostone is used as a building and ornamental stone; for road aggregate, and as agricultural lime; in the making of rock wool; as a flux in the production of pig iron in the blast furnace; for the making of natural cement; and in the manufacture of magnesium and dolomite refractories. For more information.