Chrome ore

Chromenes Chrome-nickel alloys Chrome-nickel steels Chrome nitrate Chrome ore Chrome oxide greens Chrome plating Chrome tanning Chrome-tin... [Pg.208]

Chrome Ore. Chromia-beating spinel materials, although considered neutral, are generally used in combination with basic magnesite. Chrome ores consist essentially of a complex soHd-solution series of spinels including hercynite, FeO 202 ferrous chromite, FeO Cr20 magnesioferrite,... [Pg.26]

The resistance against thermal spalling of fireclay and high alumina brick is indicated in Table 5. No standard test has been adopted for basic brick. Refractories composed of 100% magnesia exhibit poor thermal shock resistance, which is improved by addition of chrome ore. So-called direct bonded basic brick, composed of magnesia and chrome additions, exhibits good thermal shock resistance. [Pg.30]

The only commercial ore, chromite [1308-31-2], which is also called chromite ore, chrome ore, and chrome, has the ideal composition Fe0-Cr2 03, ie, 68 wt % Cr202, 32 wt % FeO, or ca 46 wt % chromium. Actually the Cr Fe ratio varies considerably and the ores are better represented as (Fe,Mg)0-(Cr,Fe,Al)203. Table 1 gives the classification of chromite ores. [Pg.113]

Chrome ore Chromite from. silica and. silicates Roll 120 -0.85 ... [Pg.1807]

Other applications of ceramics require clay, either raw or purified, sand, and feldspar. Brick, porcelain, and white wares are made from these raw materials the main expenditure in making these products is in firing the mixtures of powders to a dense solid. Ordinary brick made from fire-clay requires a small amount of energy even refractory brick for high temperatures and chemical durability, made partly from purified oxides such as alumina or chrome ore,... [Pg.773]

Chrome Niobium Titanate Yellow, pigment for plastics, 7 370t Chrome Orange, 6 523, 554, 555t pigment for plastics, 7 370t Chrome ore, as a refractory raw material, 21 490... [Pg.181]

Refractory bricks composed of oxides of magnesium, chromium, aluminum and iron and trace amounts of silica and calcium oxide are used in roofs of open hearths, sidewalls of electric furnaces and vacuum apparatus and copper converters. Such refractories are made in an arc furnace by fusing mixtures of magnesite and chrome ore. [Pg.216]

Potassium chromate can be made from chrome ore (chromite, Fe0 Cr203) that contains about 45% Cr20s. The ore is crushed and mixed with potassium carbonate and roasted in air or oxygen at 1,100 to 1,250°C ... [Pg.748]

Potassium dichromate also is produced from chrome ore. Ore is roasted with potassium carbonate or hydroxide to form potassium chromate ... [Pg.752]

Benzoylphenylhydroxylamine (17 R1 = R2 = Ph) forms complexes with V, Sn, Ti and Zr in 5 to 9 M HC1 but only that of vanadium is extractable into chloroform, permitting a selective determination of that element in chrome ores. A-Cinnamoyl-V-phenylhydroxylamine is even more sensitive. In less acid solutions solvent extractable complexes are formed with a number of other cations and, for example, an orange-red complex of uranium(VI) is extracted by V-benzoyl-iV-phenylhydroxylamine into chloroform.52... [Pg.544]

Calcium Chromate. [CAS 13765-19-0]. CaCrOj. yellow solid, formed by lhe reaction of chrome ores and calcium oxide heated to a high temperature in a current of atr. pKip = 3.15. [Pg.268]

Basic Raw Materials. Basic raw materials include magnesite dolomite, forsterite, chrome ore. silicon carbide, beryllia, thona. and carbon... [Pg.1429]

Chemical wear problems infiltration of alkali salts, redox effects, hydration cracks, corrosion of chrome ore. [Pg.369]

Chrome-fired Chrome ore, 100% 195 Varies Neutral Fair 20 Low Good Poor Fair to good Poor... [Pg.2232]

SYNS CHROME ORE CHROMITE CHROMITE ORE IRON CHROMITE... [Pg.362]

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