What is sponge titanium?

Sponge titanium is produced by metal thermal reduction method. The purity% (mass) is generally 99. 1 ~ 99.7. The total amount% (mass) of impurity elements is 0.3 ~ 0.9, the oxygen content% (mass) of impurity elements is 0.06 ~ 0.20, and the hardness (HB) is 100 ~ 157. According to the different purity, it is divided into five grades: WHTiO to MHTi4. It is the main raw material for preparing industrial titanium alloy. ?

Chinese name: sponge titanium

Mbth: sponge titanium

Definition: Sponge titanium produced by thermal reduction of metal.

Purity%: generally 99. 1 ~ 99.7.

Total amount of impurity elements: 0.3-0.9%

Note: Porous "sponge titanium" cannot be used directly.

Extended data

First, the discovery history of sponge titanium

1At the end of the 8th century, William Gregor, a British priest and amateur mineralogist, and M·H· klaproth, a German chemist, obtained black magnetite sand (later called titanomagnetite) and a non-magnetic one at 179 1 795 respectively. A few years later, it was proved that the so-called "Monaquin" and "titanium clay" found in these two minerals were actually oxides of the same element, which was named "titanium" after Titan in Greek mythology.

It took 120 years from the discovery of titanium to the first preparation of pure titanium. It took nearly 40 years from the first acquisition of pure titanium in the laboratory to the first industrial production. Many researchers have done a lot of exploration and failed again and again. Finally, DuPont 1948 succeeded in producing tonnage sponge titanium and porous titanium.

Second, the source and use of sponge titanium

1. Sponge titanium is titanium tetrachloride generated by the oxidation reaction of ilmenite and chlorine, and then put into a sealed stainless steel tank, filled with argon, and reduced with metallic magnesium.

ti+2cl 2 = TiCl 4； TiCl4+2Mg=Ti+2MgCl2

2. Sponge titanium is a raw material for producing titanium materials, titanium powder and other titanium components.

3. The two most prominent advantages of titanium are high specific strength and strong corrosion resistance, which determines that titanium will have broad application prospects in aerospace, weapons and equipment, energy, chemical industry, metallurgy, construction, transportation, medicine and other fields. A medical titanium alloy humerus costs tens of thousands of yuan.

4. The most common compound of titanium is titanium dioxide (commonly known as titanium dioxide), and other compounds are titanium tetrachloride and titanium trichloride. Titanium dioxide is widely used in coatings, plastics, paper making, ink, chemical fiber, rubber and cosmetics.

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