碳化法制备复合钛白实验研究

Study on preparation of complex titanium dioxide by Carbonization method

在轻质CaCO3的制备过程中,当碳化率为80%左右时,先后加入钛白浆料和Na2SiO3.9H2O,获得的复合钛白颜料综合性能指标与锐钛型钛白相当。研究了不同TiO2加量时的颜料性能,结果表明,从经济性考虑,TiO2加量为25%时,白度为97.69,遮盖力为37g/m2,吸油量为35g/100g,综合性能符合复合钛白颜料使用性能的需求。

The comprehensive performance index of complex titanium dioxide equivalent to titanium dioxide （A type） by adding titanium dioxide slurry and Na2SiO3 . 9H20 in the process of preparation CaCO3. The results show that white degree is 97.69, covering power is 37g/m2 , oil absorption quantity is 35g/100g when TiO2 added amount to 25%, comprehensive performance meet composite titanium dioxide pigments use of performance requirements.