85%-92% Dead burned magnesia

Product
Name
MgO
(%)
SiO2
(%)
Al2O3
(%)
Fe2O3
(%)
CaO
(%)
Loi
(%)
BD
(g/cm3)
Package
DBM8585 MIN7.0MAX0.7MAX0.6MAX5.0MAX0.8MAX3.10MINTON BAG
(1.25)
DBM9090 MIN4.8MAX1.0MAX0.7MAX4.0MAX0.6MAX3.15MINTON BAG
(1.25)
DBM9292 MIN4.8MAX1.0MAX0.7MAX3.5MAX0.5MAX3.15MINTON BAG
(1.25)

85%-92% Dead burned magnesia

85%-92% Dead burned magnesiais mainly made of natural magnesite ore with 46% content, which is calcined by high temperature kiln at about 1400℃-1800℃.


Application: Dead burned magnesia is mainly used as raw material for making magnesia bricks and producing amorphous refractory materials. The finished products are used in steel making, electric furnace bottom and ramming furnace.


The main varieties of dead burned magnesia have 85%-92% content, these varieties are mainly selected 46.5% to magnesite, sintered kiln calcination heating to 1400-1800 ℃ Mg(CO3) completely decomposed, generating magnesite, become hard reddish-brown dead burned magnesium, it has a high refractorability. Dead burned magnesia is mainly used for magnesia brick, steelmaking, electric furnace bottom and ramming furnace lining.

94%-98% Dead burned magnesia

Product
Name
MgO
(%)
SiO2
 (%)
Al2O3
(%)
Fe2O3
(%)
CaO
(%)
Loi
(%)
BD
(g/cm3)
Package
DBM9595 MIN2.0MAX0.5MAX0.9MAX2.0MAX0.1MAX3.18MINTON BAG
(1.25)
DBM9696 MIN1.5MAX0.5MAX0.5MAX2.0MAX0.2MAX3.2 MINTON BAG
(1.25)
DBM9797 MIN1.5MAX0.5MAX0.2MAX1.5MAX0.2MAX3.25 MINTON BAG
(1.25)

94%-98% Dead burned magnesia

94%-98% Dead burned magnesia is made of natural super-grade magnesite ore. It is made by light burning, fine grinding, pressing balls and calcining in ultra-high temperature oil shaft kiln. It is a high-quality raw material for brick making and uncertain refractories.


The main varieties of dead-burned magnesia have 96% content and 97% content. These kinds of dead-burned magnesia mainly use magnesite ore with more than 46.5% of the content. When heated to 1400-1800°C by sintering kiln, Mg(CO3) is completely decomposed., to generate periclase, which becomes hard reddish-brown dead-burned magnesia, which has high refractoriness. Dead burnt magnesia is mainly used for magnesia bricks, steelmaking, electric furnace bottom and ramming furnace lining.

Fused magnesia

Product
Name
MgO
(%)
SiO2
(%)
Al2O3
(%)
Fe2O3
(%)
CaO
(%)
Loi
(%)
BD
(g/cm3)
Package
FM9494MIN2.5MAX0.6MAX1.0MAX2.0MAX0.3MAX3.4MINTON BAG
(1.25)
FM9595MIN1.5MAX0.6MAX1.0MAX2.0MAX0.3MAX3.4MINTON BAG
(1.25)
FM9696MIN0.9MAX0.2MAX0.8MAX1.2MAX0.2MAX3.45MINTON BAG
(1.25)
FM9797MIN0.7MAX0.2MAX0.8MAX1.2MAX0.2MAX3.48MINTON BAG
(1.25)
FM9898MIN0.5MAX0.15MAX0.5MAX1.0MAX0.1MAX3.48MINTON BAG
(1.25)

Fused magnesia

Fused magnesiais a general term for the products of magnesia raw materials such as magnesite after high temperature treatment to the degree of sintering. The main varieties have 94%-98% content. Using high-temperature equipment such as shaft kilns and rotary kilns for one-time or two-step calcination, the magnesite fired with natural magnesite as raw material is called sintered magnesite; the magnesite is smelted with electric arc furnace as raw material to achieve molten state cooling The final form is called fused magnesia; the one made by extracting magnesia from seawater is called seawater magnesia. Magnesia is one of the most important raw materials for refractory materials, and is used to manufacture various magnesia bricks, magnesia-alumina bricks, magnesia-carbon bricks, magnesia-chrome bricks, ramming materials, furnace repair materials, etc.

Caustic Calcined Magnesite

Product
Name
MgO
(%)
SiO2
(%)
Al2O3
(%)
Fe2O3
(%)
CaO
(%)
Loi
(%)
BD
(kg/cm3)
Package
CCM8585MIN5.0MAX0.5MAX0.4MAX2.0MAX6.0MAX
TON BAG
(1.25)
50KG/BAG
CCM9090MIN3.5MAX0.5MAX0.4MAX2.0MAX5.5MAX
TON BAG
(1.25)
50KG/ BAG

Caustic Calcined Magnesite

Caustic calcined magnesia (CCM) is reactive form of MgO produced by firing magnesite at temperatures between 600°C - 1000°C. Mainly used in: Agricultural applications, Hydrometallurgical processes, Pulp and paper, Construction and Sorel cement, Chemicals and pharmaceuticals industry, Environmental applications, Glass industry.


Application:

Construction: ·Industrial Flooring ·Ceramic tiles, boards & panels ·Abrasives

Industrial: ·Hydrometallurgy ·Pulp & Paper

Specialties: ·Glass making ·Friction materials

Agri-business: ·Animal Nutrition ·Fertilizers ·Agriculture

Enviromental: ·Soil decontamination ·Waste neutralization ·Water treatment ·Flue gas treatment

Light burnt magnesia ball

Product
Name
MgO
(%)
SiO2
(%)
Al2O3
(%)
Fe2O3
(%)
CaO
(%)
Loi
(%)
BD
(kg/cm3)
Package
LIGHT
BURNT
MAGNESIA
BALL 60
60MIN5MAX0.5MAX1.0MAX2.5MIN30MAX
TON BAG
(1.25)
LIGHT
BURNT
MAGNESIA
BALL 65
65MIN5MAX0.5MAX1.0MAX2.5MIN30MAX
TON BAG
(1.25)
LIGHT
BURNT
MAGNESIA
BALL70
70MIN5MAX0.5MAX1.0MAX2.5MIN30MAX
TON BAG
(1.25)

Light burnt magnesia ball

Light burnt magnesia ball is made of magnesium oxide as the main raw material, adding water and binder at the same time, stirring and pressing under high pressure.

Light burnt magnesia ball is mainly used as the composition regulator of converter slag splashing. Because the slag splashing requires proper viscosity and fire resistance, reasonable slag composition is the key to realize the slag splashing.

Generally slag can not be sprayed directly to protect the furnace. A certain amount of magnesia ball is added to adjust the slag. Since MgO is a kind of high melting point mineral, the melting point is 2800℃, the increase of MgO content in slag will increase the viscosity of slag and improve the fire resistance.

The slag is easy to combine with the lining, forming an effective slag protection layer on the lining, improving the life of the lining and reducing the consumption.

Magnesia brick

Physical And Chemical Indicators
Brand PropertiesMD92MD95MD97MD98
Bulk densiy(g/cm3)2.902.953.003.00
Refractoriness under load T2(℃)1550165017001700
Apparent Porosity(%)18161515
Cold Crushing Strength(MPa)55607080
Thema shock resistance 950deg air cool (times)10101010
Composition(%)MGO92959797.5
CaO2.52.01.61.2
SiO23.52.51.20.6

Magnesia brick

Features:

Magnesia Brick has high refractoriness, usually refractoriness above 2000℃.

Good high temperature fire resistance under load

Has excellent slag wear resistance and higher bulk density

Lower apparent porosity

Lower impurity content


Applications:

Magnesia Brick is mainly used for furnace lining, furnace bottom and furnace wall, oxygen converter permanent lining, non-ferrous metal smelting furnace, high temperature tunnel kiln, calcined magnesia and cement rotary kiln lining, furnace bottom and furnace wall, glass furnace regenerative lattice Bricks, etc.

Magnesia carbon brick

Physical And Chemical Indicators
STEEL LADLE
Brand
Properties
Chemical Properties(%)Physical PropertiesMain Application
MgOFCAl2O3AP(%)BD(g/cm3)CCS(MPa)HMOR(1400℃X0.5hr)
LF 8 BI908243458Bottom Impact
LF 8 BN908243456Bottom Non Impact
LF 10 BC8810243458Bottom Conical/Splash Pad
LF 12 MP8612243.054510Metal Zone Purging
LF 12 MN8612253.05406Metal Zone Non Purging
LF 14 SP8414233.14010Slag Zone Purging
LF 14 SN8414233.1408Slag Zone Non Purging
LF 13 FB8513253406Free Board

Magnesia carbon brick

Product Details

Magnesia Carbon Brick has excellent resistance to spalling, rust and excellent oxidation resistance. It can be used in electric furnaces, the second ladle, etc., and is widely popular in the steelmaking industry. This product is mainly used in the converter lining, which is in direct contact with molten steel and molten slag. It has the advantages of high strength, strong slag resistance, good thermal shock stability and high refractoriness.


Advantages

Magnesia Carbon Brick has proper residual expansion, low thermal conductivity and better insulation performance than magnesium aluminum carbon brick. This brick has been used in the ladle refining slag line and has achieved good results. It is also used in the lining part of AC electric arc furnace, DC electric arc furnace, converter and other components.

Magnesia chrome brick

Brand PropertiesRMC-22RMC-16RMC-12DMC-22DMC-16DMC-8
Apparent Porosity(%)151515161718
Bulk Density(g/cm3)3.253.203.203.153.02.95
Cold Crushing Strength (MPa)505050404040
@ 1400℃ Thermal Linear Expansion(%)1.81.51.21.81.51.2
950℃(times)Thermal Shock Resistance air cool605550404040
@0.2MPa Refractoriness Under Load(℃)170017001700170016501600
Chemical Composition(%)MgO556575556575
Cr2O322161222168
SiO21.51.51.52.02.02.5
Main ApplicationsRotary & Shaft Kiln
AOD COD RH
EAF & Ladle
Nonferrous Metal Furnace
Hot-blast furnace
Glass kiln

Magnesia chrome brick

Features

Good thermal shock resistance

Excellent slag wear resistance

Good cold compression strength

High temperature resistance and high fire resistance

High-grade chrome ore raw materials

Lower impurity content


Applications
Magnesia Chrome Brick is mainly used in the metallurgical industry, such as the construction of flat-bottom furnace roofs, electric furnace roofs, refining furnaces outside the furnace, and various non-ferrous metal smelting furnaces.

Magnesia alumina brick

Index ItemRS-ARS-80RS-85RS-88
MgO(%)86858890
Al2O3(%)576.56.5
SiO2(%)3.242.41.2
CaO(%)1.61.51.31.2
Fe2O3(%)3.71.71.41.0
Apparent Porosity(%)16~20171717
Density Bulk(g/cm3)2.85~3.02.932.932.94
Cold Crushing Strength(Mpa)41505055
0.2Mpa Under Load Refractoriness(℃)≥1550161016501700
Thermal Shock
Resistance(1100°℃, water, quenching cycle)
3~63~63~63~6

Magnesia alumina brick

Introduction

Magnesia aluminum bricks use magnesia as the main raw material, magnesia brick and aluminum oxide as the co-milled fine powder as the matrix, the alkaline products which are fired at high temperature are called magnesia alumina bricks.

Magnesia aluminum refractory bricks have good thermal shock resistance, high mechanical strength at high temperatures and high softening temperatures.

Magnesium aluminum fire brick has good slag resistance, high temperature performance and thermal stability, and the price is cheaper than magnesium spinel.


Application

Magnesium aluminium bricks used in ladle, mixed iron furnace, glass kiln regenerator, steel reverberative kiln roof, steel making furnace permanent lining and refractory industrial high temperature kiln.

Contact Us

+86 189 5430 6666

+86 189 5430 6666

tianvv@msiarefractory.com

Building B, Kerry Centre Enterprise Square, No.125 Qingnian Street, Shenhe District, Liaoning Province, China.

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