Titanium tetrachloride

Synonyms: TiCl4; TITANIUM(IV)CHLORIDE

TiCl4;TITANIUM(IV)CHLORIDE;TITANIUMCHLORIDE;TITANIUM(IV)TETRACHLORIDE;TitaniumChemicalbook(IV)chloride,99.90%;Titane;Titanio. Titanium(IV)chL;Titanicchloride;Titantetrachlorid

Titanium tetrachloride properties, uses and production process

The most important titanium halide titanium tetrachloride is the most important titanium halide, is the production of titanium sponge and the production of chlorination method of titanium dioxide is an important raw material, pure titanium tetrachloride for the colorless and transparent, density, non-conductive liquid, chemical formula TiCl4, relative density of 1.726. melting point of -25 ° C, boiling point of 136.4 ° C. The titanium tetrachloride has a pungent acidic odor, easy to hydrolyze and generate white fumes in humid air. It has irritating acidic odor, easy to hydrolyze, and generates white smoke in humid air. Soluble in water and decompose at the same time, also soluble in alcohol, concentrated hydrochloric acid, and mutually soluble with chloroform, carbon tetrachloride. It is made from titanium dioxide, carbon powder and caramel mixed into agglomerate, and after coking, it is chlorinated by chlorine gas or chlorinating agent (e.g. carbon tetrachloride, etc.) above 600℃. Titanium tetrachloride is the raw material for making titanium metal and titanium compounds such as titanium dioxide and titanium trichloride. It is an important component of the catalyst for the polymerization of ethylene, and is used as a fuming agent in the military, and as a mordant in the dye industry.Chemicalbook is corrosive, and safety should be observed when storing and transporting it.TiCl4 is neither flammable nor explosive, but volatile, and reacts violently when in contact with water to produce a voluminous yellow precipitate (a compound expressed as hydrochloric acid with the molecular formula of Ti(OH)nClx) and gives off a large amount of titanium. ), and release a large amount of heat; in contact with the atmosphere that is, react with moisture in the air, producing a strong irritating and corrosive HCl white smoke. So TiCl4 should be stored in containers with good air tightness. Pure TiCl4 at room temperature on the iron almost no corrosion, crude TiCl4 or partially hydrolyzed TiCl4 dissolved in HCl will corrode iron.TiCl4 can dissolve a variety of gases, liquids and solid impurities.TiCl4 at a certain temperature can be with oxygen, magnesium, sodium and aluminum role, the reaction is the production of titanium dioxide chlorination, magnesium thermal reduction method for the production of titanium sponge and sodium thermal reduction method for the production of titanium sponge. as well as the basis for the preparation of TiCl3 by aluminum reduction.

Titanium tetrachloride production process

Titanium tetrachloride production process is the main part of titanium metallurgy process, which takes titanium-rich materials as raw materials and produces fine titanium tetrachloride through chlorination, condensation separation and refining. Titanium-rich materials include rutile, titanium slag and artificial rutile. Titanium-rich material chlorination output is mixed furnace gas, must be rich in titanium material chlorination product condensation separation and crude titanium tetrachloride refining to obtain pure TiCl4. TiCl4 is the production of titanium metal and titanium dioxide raw materials, can also be used as a fuming agent, but also the preparation of TiCl3 (the production of polypropylene catalysts) raw materials. 1950s, with the development of the production of sponge titanium and chloride titanium dioxide, TiCl4 production has also reached industrial scale. Production also reached industrial scale. Rich Chemicalbook titanium material chlorination early vertical furnace chlorination method for the production of titanium tetrachloride, followed by the development of molten salt chlorination method for the production of titanium tetrachloride and fluidized chlorination method for the production of titanium tetrachloride. Japan and the United States mainly use fluidized chlorination, the Soviet Union since the early 1960s began to use molten salt chlorination, while the vertical furnace chlorination method has been phased out, China's titanium plants use fluidized chlorination and molten salt chlorination two methods. Table 2 lists the comparison of the three main chlorination methods. To the 80's, the world's large-scale chlorination furnace daily production capacity of a single furnace has reached 120 ~ 150tTiCl4, the process has been more mature, the equipment has been basically finalized. The production process of fine titanium tetrachloride from titanium-rich materials is as follows:

Uses

It is the main raw material for the production of titanium sponge and titanium dioxide by chlorination method. Used as an important component of ethylene polymerization catalyst. Used in the manufacture of pigments and titanium organic compounds and smoke screen agent for national defense. It is also a good solvent for dissolving synthetic resins, rubber, plastics and other organic substances. Used for the determination of ferrocyanide by microanalytical method. Preparation of titanium trichloride for iodometric method. Mordant. Mixed with ammonia as fuming agent. Polymerization of chemicalbook chemical agent. Iridescent agent for glass.

Production method

Chlorination method will be high titanium slag and petroleum coke according to a certain proportion of ingredients, crushed, through the chlorine gas for the reaction, the generation of titanium tetrachloride gas, after condensation, to get the liquefied titanium tetrachloride liquid, filtration, distillation, to get the finished product of titanium tetrachloride. Its TiO2 + 2C + 2Cl2 → TiCl4 + 2CO↑TiO2 + C + 2Cl2 → TiCl4 + CO2↑