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水解偏钛酸沉降高度影响因素分析

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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D50 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TiO2 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D50 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D50 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.
Analysis of factors influencing the sedimentation height of hydrolyzed metatitanic acid
Based on the production data of a certain titanium dioxide factory,the influence of the sedi-mentation height of metatitanic acid on its particle size distribution and titanium dioxide pigment prop-erties was statistically analyzed.The results show that with the increase of sedimentation height,the D50 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 TiO2 concentration,F value,seed addition,and first boiling hold-ing time of titanium liquid all have a significant impact on the sedimentation height and D50 of metati-tanic acid.As the concentration of TiO2 increases,the sedimentation height and D50 of metatitanic acid show a decreasing trend.As the F value increases,the sedimentation height of metatitanic acid and D50 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.

TiO2metatitanic acidhydrolysissedimentation heightparticle size distribution

吴健春

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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

钛白粉 偏钛酸 水解 沉降高度 粒度分布

2024

钢铁钒钛
攀钢集团攀枝花钢铁研究院有限公司

钢铁钒钛

CSTPCD北大核心
影响因子:0.395
ISSN:1004-7638
年,卷(期):2024.45(6)