Please enable JavaScript.
Coggle requires JavaScript to display documents.
CERAMICS (Non- oxide ceramics (Low oxidation resistance, Extreme hardness,…
CERAMICS
-
-
Titanium dioxide (TiO2)
Processing
Sulphate Process
Step 1
ilmenite (FeTiO3) is treated(digested) with 60% excess of concentrated sulfuric acid at around 100°C.
FeTiO3 + 2H2SO4 → FeSO4 + TiOSO4 + 2H2O
Step 2 Waste product iron(II)sulfate is removed. The remaining aqueous digestion products are heated to around 110°C in order to hydrolyse the titanium oxygen sulphate.
TiOSO4 + (n+1)H2O → TiO2•nH2O + H2SO4
Step 3
The hydrated titanium dioxide is heated in large rotary kilns to drive off the water and produce crystals of anatase or rutile (2 forms of titanium dioxide).
TiO2•nH2O → TiO2 + nH2O
-
Raw materials
titanium ore ( Anatase ,Enamel and Rutile )
-
-