While delivering an excellent performance in iron casting (gray cast iron, nodular cast iron, temper cast iron) in iron casting with its sintering point at 1450 ºC and melting point above Casting Sand produced from Oremet Olivine also provides a good performance in castings other than iron metals.

1 Deborah A. Kramer, "Magnesite and Magnesia," from Minerals Yearbook Volume 1. Metals and Minerals, Bureau of Mines, 1992, pp. 163173.

content crushed MgOC spent refractories and Dolomite Sinter obtained from rotary kilns process were used as a slag conditioning agent on the slag and metal ... The EAF companies have a huge interest at recycling their spent refractories,. ... Actually, there are two methods to produce refractory by using dolomite and magnesite as materials ...

Higher levels of Mg than in dolomite means less material is required to meet Mg requirements. Low loss on ignition (LOI) means less energy is lost in endothermic reactions ( to drive off CO 2) in blast furnaces and sintering plants. Slag conditioning accounts for about 90% of global olivine production.

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dolomite can stand temperatures upto 2300ºC. It is widely used as a refractory material wherever steel is refined using Basic Slag. It is used for original hearth installations in the open hearth furnaces as well as for hearth maintenance. These hearths are installed using tardolomite ramming mixes and rammed dolomite.

Magnesite is an important industrial mineral composed of magnesium carbonate (MgCO 3. Pure magnesite is theoretically % magnesia (MgO) and % carbon dioxide (CO 2).. It is the source of twothirds of the world's magnesia (MgO); 25% is extracted from sea water, with the balance coming largely from brines.

Olivine is a magnesiumironsilicate with the formula (Mg, Fe)2SiO4. Olivine is actually a name for a series between two end members, ironrich fayalite and magnesiumrich forsterite. Olivine is often used in metallurgical processes as a slag conditioner, .

Sep 30, 2015· Read "Influence of blastfurnace slag on behaviour of dolomite used as a raw material of MgOtype expansive agent, Construction and Building Materials" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at .

The offered Natural Quartz Lumps are reckoned for their unique optical, thermal and mechanical characteristics. Accessible in different particle size and thickness options, these mineral lumps have extensive applications in petrochemical, glass, ceramic and steel industries.

METALLURGICAL USES FLUXES FOR METALLURGY HAROLD R. KOKAL AND MADHU G. RANADE A metallurgicalf2ux is a substance that is added to combine with gangue (unwanted minerals) during ore smelting, with impurities in a molten metal, or with other additives in metal refining processes to form a slag that can be separated from the metal. Because slags

dolomite and chromite for usage as insulation or molten metal/slag containers. These ... amount of slag conditioner (MgO+C spent refractory) can be predicted to saturate the slags. ... magnesium wustite (MW))(3). Consequently, the basicity and FeO content affect the amount of slag conditioners needed to saturate a slag.

over dolomite in slag conditioning are higher MgO content, no requirement of preheat treatment, low LOI, reduced energy consumption, lower coke consumption, reduced slag volume and lower CO 2 emissions. Presence of higher amount of silica in dolomite leads to lower sinter basicity ( CaO/ SiO 2) at around than of dolomite and the

over dolomite in slag conditioning are higher MgO content, no requirement of preheat treatment low LOI, reduced energy consumption, lower coke consumption, reduced slag volume and lower CO 2 emissions. Presence of higher amount of silica in dolomite leads to lower sinter basicity ( CaO/ SiO 2) at around than of dolomite and the

Sep 23, 2013· Dolomite is formed as a result of calcite transformations in the presence of magnesium ions. Dolomite rock is useful in the chemical industry for the preparation of magnesium and serves as construction and decoration deposits can be found in .

The main reason for consuming magnesitic and dolomitic slag conditioners is the enrichment of slags with basic oxides. They are needed to perform metallurgical work and for the protection of refractory linings. Pneumatically conveyable slag conditioners with higher LOI percentage also provide ideal support in slag ing.

Less raw material need since Olivine contains high MgO according to both serpentine and dolomite. Less slag is obtained by using olivine 75% of time passes in sinter temperature is used for evaporating CO2 when dolomite is used in sinter. Whereas this time becomes 15% shorter since it .

USE OF MgO BRIQUETTES IN ELECTRIC ARC FURNACES: PRINCIPLES INDUSTRIAL EXPERIENCES AT COMSINAC ... and MgO briquettes as slag conditioners. The use of both ... dolomite, magnesite[8], MgO ...

ABOUT DOLOMITE. Dolomite Company of Ltd is New Zealand owned and operated. We are dedicated to increasing the use and appreciation of Golden Bay Dolomite, NZ's finest and most effective magnesium fertiliser.

cost. Such slag seems to be very attractive to use as raw materials for the production of silicomanganese alloys. In the present study, experimental heats were designed and carried out to optimise the factors affecting the production process of silicomanganese using manganese rich slag in .

This article tries to explore the use of dolomite as an alternate carbonate source to limestone in calcined clay limestone systems. The hydration process and possible reaction mechanisms of dolomite with calcined clay are studied with: 1) calcium hydroxide and, 2) ordinary Portland cement.

EXPERIMENTS IN DEAD‐BURNING DOLOMITE AND MAGNESITE EXPERIMENTS IN DEAD‐BURNING DOLOMITE AND MAGNESITE Schurecht, H. G. 00:00:00 ABSTRACT Stability of calcined dolomite; effect of fineness of raw material, nature of flux and temperature of burning.—Dolomite is difficult to dead‐burn because the absorption of moisture from the air .

dolomite consumption and landfill costs, estimated savings by implementing this project are around 130,000 US/year. Similar projects involving the incorporation of spent refractories in the EAF as slag conditioners are now under implementation in other Tenaris plants. October 2015

Jan 11, 2000· Presentation 01/11/2000 GRECIAN MAGNESITE Presentation at Industrial Minerals Annual Forum Minerals in Architectural Markets, November 2000 MAGNESIA CEMENTS: OVER A HUNDRED YEARS OLD BUT STILL NOVEL Paper presented by: M. HALARIS, Dr. TH. ZAMPETAKIS MAGNESITE /MAGNESIA BACKGROUND