Dead-burned Magnesiten Dead Burnt Magnesite

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Product Description:

Dead-burned Magnesiten Dead Burnt Magnesite


1.High purity Large crystal grain Compact structure 
2.Strong resistance to slag material 
3.Good thermal shock resistance

Dead-burned Magnesiten Dead Burnt Magnesite

Dead-burned Magnesiten Dead Burnt Magnesite

Magnesium Oxide is used in a number of   industrial applications including:


As a binder in grinding wheels

Animal   feed supplement

Source of magnesium ions for chickens,   cattle and

other animals

Boiler   (oil-fired) additives

Material that is easily removed; reduced   corrosion of

steel pipes holding   steam as well as sulfur emissions

into the environment

Boiler   feedwater treatment

Reduces iron, silica and solids


Starting point for the production of other   magnesium

salts such as sulfate and nitrate


Pigment extender in paint and varnish


Basic ingredient of oxychloride cements   used for

flooring, wallboard, fiber board, and tile


Semi-conductors; heating elements   insulating filler

between wire and outer sheath


Source of essential magnesium for plant   nutrition


Catalyst and water acceptor in shell   molding

Glass   manufacture

Ingredient for specialty, scientific and   decorative

glassware and fiberglass


Light, flexible mats for insulating pipes

Lubricating   oils

Additive to neutralize acids


Special grades of magnesium hydroxide,   oxide and

carbonate are used in antacids, cosmetics,   toothpaste,

and   ointments

Plastics   manufacture

Filler, acid acceptor, thickener catalyst   and pigment


Refractory   and ceramics

Basic ingredient in product formulations   for the stee


Rubber   compounding

Filler, acid acceptor, anti-scorch   ingredient, curing aid,


Steel   industry

Annealing process; coating for grain-oriented   silicon

steel used in electrical transformers

Sugar   refining

Reduces scale build-up when used in juice   clarification

and precipitation

Sulfite   wood pulping

Source of base for cooking liquors

Uranium,   gallium & boron

Precipitation initiator by acid   neutralization processing

Wastewater   treatment

Acid stream neutralizer; precipitates heavy   metals

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Dead-burned Magnesiten Dead Burnt Magnesite

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Q:What kind of refractory materials should be used for the intermediate frequency furnace to smelt manganese?
I’d like to make supplements to upstairs that aluminum silicate refractory materials should be needed considering heat insulation.
Q:What thickness is needed of the ultra-thin fireproof paint with a fireproof time of 2.5 hours?
Fireproof of steel components can adopt outsourcing concrete (or laying bricks method), fireproof coatings, fire prevention board coated and composite structure. Anti-firing plate can be divided into the fire protection lamella thickness plate and thin plate. Fire protection lamella thickness plate is of 20 ~ 50 mm. There are mainly calcium silicate and decayed stone of fire prevention board fire board, main varieties KB board, CF board; Fire sheet thickness is between 6 to 15 mm and the main varieties have short fiber reinforced cement pressure plate, fiber reinforced ordinary calcium silicate board and glass cloth reinforced inorganic plate. I hope you can be satisfied.
Q:Does the refractory material used in steelmaking all refer to refractory brick?
For example, refractory castable doesn't only refer to refractory brick, but also some bulk material and ramming mass. Desulfurizer belongs to ferrous metallurgy auxiliary material.
Q:What are the disadvantages of the refractory industry?
The rapid development of continuous casting technology allows Hua Heng refractories to be improved in variety and quality. The development of refractory for continuous casting has a significant impact on the production of continuous casting and quality of continuous casting billet. Constructing and putting Baosteel into action has greatly pushed the improvement of the refractory technology. Continuous casting refractory is an important part of the continuous casting machine. In addition to the general characteristics of refractories, it is also required functions that can purify molten steel, improve the quality of steel, stabilize temperature and composition of the molten steel, control and regulate the molten steel flow. Therefore, it is known as functional refractories. Continuous casting Refractories include: (1) ladle refractory - ladle lining, permanent lining and ventilation components; (2) tundish refractories - permanent lining, coating, insulating plates, clad etc; (3 ) functional refractories - long nozzle for non-oxidizing casting, submerged nozzle, monolithic stopper, sliding gate; (4) ceramic purifier for purifying molten , slag dam, alkaline paint and horizontal separating ring and gate board for continuous casting.
Q:what's the fireproof levels of fireproof and thermal inuslation matertial?
thermal insulation refractory material is also known as thermal insulation material, it has low thermal conductivity, average is below 0.3 w/m ℃). porosity is in commonly above 50%, bulk density is less than 1300 kg/m3 with low mechanical strength. thermal insulation refractory material, according to the operating temperature, can be divided into three kinds of materials: high temperature thermal insulation material (< 1200 ℃), medium temperature thermal insulation material (900 ~ 1200 ℃) and low temperature thermal insulation material (< 900 ℃). According to the bulk density, it can be divided into: general thermal insulation material (bulk density
Q:What is the appropiate thickness if fire resistant time for ultra thin steel structure coating is 2.5 hours?
Hello steel structure can adopt surrounding concrete or brick, fireproof coating, fireproof board coating and composite structure for its fire resisitance. Fire resisitance board can be divided into thick fire protection plate and thin plate, the thickness of the plate thickness of the fire is between 20 ~ 50mm, mainly includes calcium silicate fireproof board and expansion boring stone fire board, the main varieties are KB board, CF; thin fireproof plate is between 6 ~ 15mm thick, the main varieties include enforced short fiber cement plate, ordinary enforced fiber silicate calcium board and glass cloth reinforced inorganic board.
Q:Procedures for producing common refractory materials?
The general procedures of producing refractory materials include calcination of raw materials, selection of raw material , crushing, grinding, screening, mixing, ageing mixture, molding, drying, burning and etc. At present, the refractory factory usually purchases the calcined clinker, so the calcination of raw material is no longer a consideration of common refractory plants.
Q:What are grades of refractory materials?
Refractories have lots of varieties which all have different purposes. It is necessary to classify refractories scientifically in order to scientifically study, choose and manage them. Classification methods of refractories include chemical properties classification, chemical composition of mineral classification, manufacturing technique classification, morphology of the material classification. 1 divided according to the level of refractoriness: ordinary refractory materials: 1580 ℃ - 1770 ℃, advanced refractories: 1770 ℃ - 2000 ℃ and super refractories: above 2000 ℃ 2, divided in accordance with shapes and sizes : Standard ones: 230mm × 113mm × 65mm, no more than four ruler, (ratio) Max: Min < 4: 1; Shaped ones: no more than two-entrant, (ratio) Max: Min < 6: 1 or having a acute angle of 50 - 70 °; The specific type :( ratio) Max: Min < 8: 1 or having no more than 4-entrants or having an acute angle of 30 - 50 °; and Special products: crucible, containers and tubes. 3, divided according to the method of manufacturing: burned products, non-burned products and unshaped refractories 4. divided according to the chemical properties: acidic refractory materials, neutral refractory materials and basic refractory materials.
Q:What kind of fireproof material is used for steel structure?
Brushing or spraying the coating on the surface of steel structure to prevent burning and insulate heat. It also prevents undermining the rolled steel from rapid temperature elevation and avoid collapse of building for lose of supporting capacities. Agglutination material are classified as fireproof coatings for steel structures which is solvent based and Water-based steel structure fire retardant coatings. Fireproof coatings for steel structures which is solvent based are subdivided into fireproof coatings for steel structures which is solvent based with low benzene content and fireproof coatings for steel structures which is solvent based with high benzene content (TVOC≤600g / L, benzene ≤5g / kg). It can be divided by thickness. ultra-thin (CB) fireproof coatings (coating thickness ≤3mm), thin (B) fireproof coatings (3mm & amp; lt; coating thickness ≤7mm) and thick (H) steel structure fire retardant coating (7 mm & amp; lt; coating thickness ≤45㎜). The coating can be divided into non-intumescent fire retardant coating and intumescent fire retardant coating according to the the expansion properties. Slim (CB) and fire-resistant coating for steel structure and thin(B) fireproof coatings is intumescent fire retardant coating, thick (H) fire-resistant coating for steel structure is intumescent fire retardant coating. Unprotected steel structure has fire endurance of 0.25 hours.
Q:Is it necessary for the frame of glass fireproof door to be crammed with fire-proof material?
Fire resistance steel door——means that use a cold rolled steel sheet as door frame, door plank and framework, and stuff a door leaf with incombustible material.

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