magnesite chromite refractories definition
Refractory Bricks
Chromite refractory belongs to neutral refractory Chrome bricks are bricks that contain chromium hemitrioxide 30% Such bricks are featured with acid and alkali slags resistance, and are used in the isolation layer, and nonferrous smelting furnaces, etc...
The phase composition of chrome
With existing production methods for chrome-magnesite refractories such mineral-forming processes can be ensured only by using finely ground powders of chromite and magnesite in conjunction with high-temperature firing (of the order of 1750°C and higher)...
LECTURE 9 Refractory Materials
b) Magnesite: Carbon refractory with varying amount of carbon has excellent resistance to chemical attack by steelmaking slags c) Chromite-Magnesite refractory: used in inner lining of BOF and side walls of soaking pits ( basic refractory) d) Magnesite: Basic re fractory in nature Magnesite bricks cannot resist thermal stock, loose...
US3303032A
Generally, basic refractories containing magnesite, dolomite and/ or chromite, contain magnesite as a fine fraction, a substantial amount of such a fine fraction being necessary to ,...
Magnesia Chrome Brick
Adopt magnesite-chrome brick made of bonded common sintered material to eliminate loose effect caused of the expansion when producing the spinel by the reaction of MgO and Cr2O3, Al2O3 or FeO Moreover, there is also unburned magnesia chrome brick such as unburned magnesia chrome brick made of inorganic magnesia saline solution...
115 Refractory Manufacturing
Chromium is used in several types of nonclay refractories, including chrome-magnesite, (chromite-magnesite), magnesia-chrome, and chrome-alumina Chromium compounds are emitted from the ore crushing, grinding, material drying and storage, and brick firing and finishing processes used in producing these types of refractori...
Chromite Refractories
Chrome magnesite refractory bricks are produced from sintered magnesia and chrome ore that has refractory level Content of chrome-magnesite refractory bricks is generally, 15-35% Cr2O3 and 42-50% MgO whereas magnesite-chromite refractories contain at least 60% MgO and 8-18% Cr2O3 Bonding space between refractory grains is done with silicate...
Refractory
These are impervious to basic materials, but easily attacked by acidic materials Important members of this group are magnesite and dolomite refractori 3 Neutral refractories are made from weakly acid/basic materials such as carbon, silicon carbide (SiC), chromite (FeCr 2 O 4) and zirconia (ZrO 2) Based on chemical composition...
Magnesia Chrome Brick
The primary minerals of direct-bonded magnesia chrome bricks are calcite and spinel combined directly which greatly improves the high temperature performance of refractory bricks The direct-bonded magnesia chrome brick is made of high quality magnesite ore and chromite as raw material and then fired into light magnesia...
Magnesia Chrome Brick
Magnesia Chrome Brick is a kind of basic refractory material with more than 90% magnesium oxide content and periclase as the main crystal phase, which has excellent properties of high refractoriness, high temperature strength, good thermal shock resistance and strong basic slag erosion resistance and is mainly used for steelmaking basic open-hearth furnace, electric furnace bottom and wall ....
US3429723A
Starting from this finding, the invention provides a process for the manufacture of refractory magnesiachrome and chrome-magnesia products in which substances containing chromium oxide, especially chrome ore (chromite), have been mixed with magnesite, if desired sintered magnesite, and, advantageously after having shaped the mix, as in ....
Refractories fire brick Video
Apr 04, 2017· The screw press is able to produce concrete bricks,high alumina bricks,high alumina corundum bricks,magnesia bricks,SiC bricks,acid resistance bricks, acid ,...