铁包覆工艺对二氧化钛彩度的影响

Influence of Iron Coating on Chroma of Titanium Dioxide

以TiO2砂磨浆料和FeCl3为原料,采用表面处理技术合成肤色二氧化钛。运用彩度对样品颜色进行表征,在实验室系统研究了包膜量、包膜温度、熟化时间、加料时间、煅烧温度等因素对样品颜色的影响。结果表明:制备色相较好的肤色二氧化钛的较佳包覆工艺参数为包覆温度85℃,加料时间45 min,熟化30 min,铁包覆量5%,煅烧温度600～700℃。

Complexional titanium dioxide was prepared by surface treatment technology using TiO2 and FeCl3 as raw materials.Chroma was used to characterize the samples.In the experiment,the factors which affect the color of the sample,including coating quantity,coating temperature,aging time,and calcining temperature and time were systematically investigated.Results show that the optimal technological parameters of synthesizing complexional titanium dioxide are as follows： coating temperature at 85 ℃,feeding time for 45min,aging time for 30 min,iron coating quantity of 5%,and calcining temperature at 600~700 ℃.