摘要
通过Pearson系数统计方法、概率密度分析方法和概率密度累积分布分析方法研究沉钒过程合格液中磷、铁、锰、硅、钒等元素对五氧化二钒成分的多元相关影响。结果表明,合格液中P、Mn含量与五氧化二钒中P含量的Pearson系数分别为0.6847、0.6663,线性相关程度最高;合格液中Mn与五氧化二钒中Mn的Pearson系数为0.3612,合格液中Fe与五氧化二钒中Si的Pearson系数为0.3564,具有一定的线性相关;合格液中P与五氧化二钒中Si的Pearson系数为-0.3291,合格液中V与五氧化二钒中P的Pearson系数为-0.2259,具有一定的负线性相关。合格液中其余元素含量与五氧化二钒中元素含量的Pearson系数的绝对值均小于0.16,说明相关性不强。五氧化二钒和合格液中P、Mn、Fe、Si、V含量均不服从正态分布,反映出统一样本过程不稳定,即生产过程不稳定,因此减少合格液成分异常波动,规避沉钒过程中对五氧化二钒质量产生较大影响的因素,可以提高五氧化二钒成分的稳定性。该研究为生产合格五氧化二钒提供了一定的理论技术支撑。
The effects of phosphorus,iron,manganese,silicon and vanadium in the qualified solution during vanadium precipitation on the composition of vanadium pentoxide were investigated through multivariate correlation analysis using Pearson coefficient statistics,probability density analysis and probability density cumulative distribution analysis methods.The results show that the Pearson coefficients of P,Mn content in qualified solution and P content in vanadium pentoxide are 0.6847 and0.6663,respectively,with the highest degree of linear dependence.The Pearson coefficients of Mn,Fe in qualified liquid and Mn,Si in vanadium pentoxide are 0.3612 and 0.3564,respectively,indicating a certain degree of linear dependence.The Pearson coefficients of P,V in qualified liquid and Si,P in vanadium pentoxide are-0.3291 and-0.2258,respectively,representing a certain degree of negative linear correlation.The absolute value of Pearson coefficients for the content of other elements in the qualified solution and vanadium pentoxide are all less than 0.16,indicating a weak correlation.The contents of P,Mn,Fe,Si and V in vanadium pentoxide and qualified solution do not follow a normal distribution,reflecting the instability of the unified sample process,that is,the unstable production process.Therefore,it is necessary to reduce the abnormal fluctuation of qualified solution composition and avoid the factors that have relatively great impacts on the vanadium precipitation,which contributes to improve the stability of vanadium oxide composition.This work can provide some theoretical and technical support for the production of qualified vanadium oxide.
作者
伍金树
饶玉忠
伍珍秀
蒋霖
Wu Jinshu;Rao Yuzhong;Wu Zhenxiu;Jiang Lin(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,Sichuan,China)
出处
《钢铁钒钛》
CAS
北大核心
2023年第6期38-45,共8页
Iron Steel Vanadium Titanium
关键词
五氧化二钒
沉钒
合格液
成分
多元相关影响
Pearson系数
vanadium pentoxide
vanadium precipitation
qualified liquid
element content
multivari-ate correlation effect
Pearson coefficient
