铁粉在硫酸法钛白生产中还原Fe^(3+)的试验研究  

Experimental Study on Fe^(3+) Reduced by Iron Powder in Sulfate Route to Produce Titanium Dioxide

作　　者：吴绍华[1] 王莉红[1] 刘进[1] 兰尧中[2] 

机构地区：[1]云南师范大学化学化工学院,昆明650092 [2]云南大学化学与材料学院,昆明650091

出　　处：《现代涂料与涂装》2005年第6期49-51,共3页Modern Paint & Finishing

基　　金：云南省人才培养项目(2002PY01)

摘　　要：详述了铁粉在硫酸法钛白生产过程中对酸解钛液进行还原除Fe3+的工艺,系统地分析了反应温升(ΔT)与时间(t)的关系。与铁皮(或铁屑)相比,采用铁粉作还原剂,具有反应速度快、用量少、计量准确等优点,且对酸解钛液的稳定性和TiO2的质量无影响。The process to remove Fe^3＋ from the digestion solution by reduction of iron powder during sulfate route toproduce titanium dioxide is specified. The relationship between temperature difference（△ T） and reaction time（ t） is analyzed systematically. Compared with sheet iron or scrap iron, using iron powder as reductive agent shows higher reaction speed, smaller amount of reductant, more accurate metering and et al. It shows no influence on the stability of digestion solution and quality of titanium dioxide also.

关 键 词：铁粉 还原反应 钛白 酸解钛液 

分 类 号：TQ621.12[化学工程—精细化工]