Supplement:
The purity% is generally 99. 1 ~ 99.7%. The impurity content is 0.3 ~ 0.9%, the impurity element oxygen content is 0.06 ~ 0.20, and the hardness (HB) 100 ~ 157.
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. Titanium made of sponge titanium, melting point 1660℃, boiling point 3287℃, density 4.54g/cm? .
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.
Production of sponge titanium by metal thermal reduction. 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. Sponge titanium production is the basic link of titanium industry, and is the raw material of titanium material, titanium powder and other titanium components. The ilmenite is changed into titanium tetrachloride, and then it is put into a sealed stainless steel tank, and argon is filled to make them react with magnesium metal to obtain "sponge titanium". This porous "sponge titanium" can not be used directly, but must be melted into liquid in an electric furnace before it can be cast into titanium ingots.