Hematite solubility in sulfuric acid from 130-170 C and 230-270 C.

机译：赤铁矿在130-170 C和230-270 C的硫酸中的溶解度。

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Accurate hematite solubility data is required to allow the metals industry to monitor the efficiency of their iron removal processes and to better predict hematite precipitate size distribution and morphology. Hematite solubility data has been generated for 0.1-0.7 molal H2SO4 solutions at 130-170°C and 230-270°C. These measurements represent an improvement over previous experimental data due to better in-situ filtration of samples and inhibition of ferric iron reduction on titanium. Ferric iron reduction has been studied to evaluate the inflationary effect of ferrous iron on hematite solubility measurements. Suitable inhibitors to prevent ferric iron reduction have been investigated. The generated hematite solubility data has been used to construct a solution chemistry model using OLI software. A combined magnesium-hematite solubility model is then constructed to validate the proposed iron solution chemistry model. Deviations between the current work and previous hematite solubility data are explained in terms of experimental set-up.

机译：需要准确的赤铁矿溶解度数据，以使金属行业能够监控其除铁过程的效率，并更好地预测赤铁矿沉淀物的尺寸分布和形态。已经在130-170°C和230-270°C下生成了0.1-0.7摩尔H2SO4溶液的赤铁矿溶解度数据。由于更好的原位过滤和抑制钛上三价铁的还原，这些测量结果比以前的实验数据有所改善。已经研究了三价铁还原以评估二价铁对赤铁矿溶解度测量的膨胀作用。已经研究了防止三价铁还原的合适抑制剂。生成的赤铁矿溶解度数据已用于使用OLI软件构建溶液化学模型。然后构造了组合的镁-赤铁矿溶解度模型，以验证提出的铁溶液化学模型。当前的工作和以前的赤铁矿溶解度数据之间的差异是根据实验设置来解释的。

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作者
Reid, Michael.;
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作者单位

University of Toronto (Canada).;

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授予单位 University of Toronto (Canada).;
学科 Engineering Chemical.
学位 M.A.Sc.
年度 2005
页码 99 p.
总页数 99
原文格式 PDF
正文语种 eng
中图分类化工过程（物理过程及物理化学过程）;
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Hematite solubility in sulfuric acid from 130-170 C and 230-270 C.

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