水解偏钛酸沉降高度影响因素分析  

Analysis of factors influencing the sedimentation height of hydrolyzed metatitanic acid

作　　者：吴健春 Wu Jianchun(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,Sichuan,China)

机构地区：[1]钒钛资源综合利用国家重点实验室,攀钢集团攀枝花钢铁研究院有限公司,四川攀枝花617000

出　　处：《钢铁钒钛》2024年第6期59-63,150,共6页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金青年科学基金项目(编号:22108019)。

摘　　要：以某钛白粉厂生产数据为依据,统计分析了水解偏钛酸沉降高度对粒度分布和初品质量的影响规律。结果表明,随着水解偏钛酸沉降高度增加,水解偏钛酸D_(50)呈现增加趋势,相应获得初品Tcs和Scx均呈现下降趋势,初品平均粒径呈现增加趋势,控制偏钛酸沉降高度在130 mm以下可以获得颜料性能较好的钛白粉。试验研究表明,水解钛液的TiO_(2)浓度、F值、水解晶种加量和水解判灰时间均对水解偏钛酸的沉降高度和D_(50)有较大影响。随水解钛液浓度增加,水解偏钛酸沉降高度呈下降趋势,随F值增加,水解偏钛酸沉降高度和D_(50)呈现增加趋势,随水解晶种加量的增加,水解偏钛酸沉降高度呈下降趋势,随判灰时间的延长,水解偏钛酸沉降高度呈现先增加后减小的趋势。Based on the production data of a certain titanium dioxide factory,the influence of the sedimentation height of metatitanic acid on its particle size distribution and titanium dioxide pigment properties was statistically analyzed.The results show that with the increase of sedimentation height,the D_(50) of metatitanate shows an increasing trend,while the Tcs and Scx of titanium dioxide pigment show a decreasing trend,and the average particle size shows an increasing trend.Controlling the sedimentation height of titanium dioxide below 130 mm can obtain titanium dioxide with better pigment properties.The experimental results show that the TiO_(2) concentration,F value,seed addition,and first boiling holding time of titanium liquid all have a significant impact on the sedimentation height and D_(50) of metatitanic acid.As the concentration of TiO_(2) increases,the sedimentation height and D_(50) of metatitanic acid show a decreasing trend.As the F value increases,the sedimentation height of metatitanic acid and D_(50) show an increasing trend.With the increase of seed addition,the sedimentation height of metatitanic acid shows a decreasing trend.With the extension of the first boiling insulation time,the sedimentation height of metatitanic acid shows a trend of first increasing and then decreasing.

关 键 词：钛白粉 偏钛酸 水解 沉降高度 粒度分布 

分 类 号：TF823[冶金工程—有色金属冶金] TQ621[化学工程—精细化工]