金红石二氧化钛粒径与蓝相指标的相关性研究  

Study on the correlation between particle size and blue phase indicators of rutile titanium dioxide

作　　者：刘婵 路瑞芳[1,2] 孙蔷 石瑞成 吴健春[1] Liu Chan;Lu Ruifang;Sun Qiang;Shi Ruicheng;Wu Jianchun(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,Sichuan,China;School of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400030,China;School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China)

机构地区：[1]钒钛资源综合利用国家重点实验室,攀钢集团研究院有限公司,四川攀枝花617000 [2]重庆大学化学化工学院,重庆400030 [3]东北大学冶金学院,辽宁沈阳110819

出　　处：《钢铁钒钛》2022年第2期15-20,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：采用不同的K_(2)O、P_(2)O_(5)、ZnO盐处理配方处理偏钛酸,煅烧后得到金红石含量合格的硫酸法钛白初品,检测蓝相指标SCX、ZS90平均粒径Z-Ave和SEM平均粒径,并通过线性拟合和回归等手段分析三者之间的线性相关性。结果表明,钛白初品的ZS90平均粒径Z-Ave和SEM平均粒径与SCX的线性相关性指标Pearson相关系数分别达到了−0.957和−0.935,说明该两项粒径指标大小均与SCX值成负线性相关性。SCX与Z-Ave线性回归方程的R-Sq达到了91.6%,SCX与SEM平均粒径线性回归方程的R-Sq达到了87.5%,线性回归结果表明,采用SCX值对Z-Ave的预测有效性要稍高于对SEM平均粒径的预测有效性。钛白粉厂家可将常规监测指标SCX值带入相应的拟合方程式来对产品粒径进行统计分析和跟踪,并据此对工艺技术进行调整。In this paper,different K_(2)O-P_(2)O_(5)-ZnO salt treatment formulas were used to treat meta-titanic acid,and eligible rutile titanium dioxide was obtained after calcination.SCX value as the blue phase indicators,Z-Ave value as the ZS90 mean particle size and SEM mean particle size were detected.The linear correlation among them was analyzed by means of linear fitting and regression.The results show that as the correlation indicators,the Pearson correlation coefficients of Z-Ave value and SCX value,SEM mean particle size and SCX value are respectively−0.957 and−0.935.There is a negative linear correlation between the two particle size indicators and SCX value.The R-Sq value of the linear regression equation between SCX value and Z-Ave is 91.6%,while this value between SCX value and SEM mean particle size is 87.5%.The linear regression results show that the prediction effectiveness of the SCX value for Z-Ave value is slightly better than that for SEM mean particle size.Manufacturers can put the conventional monitoring index SCX value into the corresponding fitting equation to carry out statistical analysis and tracking of product particle size,and adjust the process technology accordingly.

关 键 词：金红石二氧化钛 ZS90 SEM SCX 相关性 

分 类 号：TF823[冶金工程—有色金属冶金] TB34[一般工业技术—材料科学与工程]