Titanic iron ore

Titaneisen, n. titaniferous iron, -erz, n. titanic iron ore, ilmenite. -sand, m. titaniferous iron sand (a form of ilmenite). -stein, m. = Titaneisen erz. ... 

Salts of these elements, on treatment with soda, yield no precipitate, for they are dissolved by the alkali the compounds formed are indefinite, but it may be supposed that they contain aurate, MAuOg.Aq, or platinate, titanate, zirconate, or thorate, MPtOg.Aq, c. Iron and calcium titanates occur native FeTiOg is termed ilmenite, and CaTiOg perowskite. The first is isomorphous with and crystallises along with native ferric oxide the ore is known as titanic iron ore. It is the commonest compound of titanium. 

Ilmenite, titanic iron ore or ferrous titanite, FeO.TiOa, is the ore in... 

It occurs in the minerals rutile, ilmenite, and sphene, and is present in titanates and in many iron ores. Titanium is present in the ash of coal, in plants, and in the human body. 

Occurs in clays and iron ores, and as TiOj in several minerals.. Titanic anhydnd, TiOn, is a white, insoluble, infusible powder, used in the manufacture of artificial teeth dissolves in fused KHO, as potassium titanate. Titanium combines readily wuth H, which it absorbs from air when heated. When NH is passed over red-hot TiOj, it is decomposed with formation of the violet nitrid, TiNj. Another compound of Ti and H forms hard, copper-colored, cubical crystals. 

Iron titanate, FeTiOs, occurs naturally as ihnenite (. v.) or titani-ferous iron ore. The Colour Index (1971) lists this as Cl 77543/Pigment Black 12. 

In 1990, appioximately 66,000 metric tons of alumina trihydiate [12252-70-9] AI2O2 3H20, the most widely used flame retardant, was used to inhibit the flammabihty of plastics processed at low temperatures. Alumina trihydrate is manufactured from either bauxite ore or recovered aluminum by either the Bayer or sinter processes (25). In the Bayer process, the bauxite ore is digested in a caustic solution, then filtered to remove siUcate, titanate, and iron impurities. The alumina trihydrate is recovered from the filtered solution by precipitation. In the sinter process the aluminum is leached from the ore using a solution of soda and lime from which pure alumina trihydrate is recovered (see Aluminum compounds). 

Iron Titanates. Ferrous metatitanate [12168-52-4] FeTiO, mp ca 1470°C, density 472(0), an opaque black soHd having a metallic luster, occurs in nature as the mineral ilmenite. This ore is used extensively as a feedstock for the manufacture of titanium dioxide pigments. Artificial ilmenite may be made by heating a mixture of ferrous oxide and titanium oxide for several hours at 1200°C or by reducing a titanium dioxide/ferric oxide mixture at 450°C. 

This report, which was entitled "Chemical investigation of the residues of Ural platinum ore and of the metal ruthenium, occupied one hundred and eighty-eight pages in the Scientific Annals of Kazan University for 1844. In the following year it was published in book form. For patriotic reasons and also in recognition of the earlier work of Professor Osann, Klaus retained the name ruthenium, which means Russia. The white substance which Osann had taken for the oxide of this new metal consisted chiefly of silicic and titanic acids, iron peroxide, and zirconia (37). Klaus also found ruthenium in the osmiridium from American ores (36, 128). It constituted only from 1 to l1/o per cent of these residues and did not occur in the portion which is soluble in aqua regia (126). 

Examples The roasting of ores, the chemical adsorption of hydrogen sulfide by metal oxides (forming sulfides), the conversion of a metal oxide with a volatile non-metal oxide into a salt (e.g., the chemical adsorption of sulfur dioxide and oxygen by calcium oxide), the reductive chlorination of ilmenite (iron titanate) whereby iron chloride and titanium oxide are formed. In some processes a second solid reactant is present (e.g., carbon) that also reacts with the gaseous reactant, forming another gaseous reactant (e.g., carbon monoxide). 

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