Clean preparation of rutile from Ti-containing mixed molten slag by CO₂ oxidation

IF 3.8 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Green Processing and Synthesis Pub Date : 2023-01-01 DOI:10.1515/gps-2023-0083

Jiqing Han, Qiuping Feng, Li Zhang

引用次数: 0

Abstract

Abstract The effects of SiO2 and CO2 on the crystallization action of Ti-containing mixed molten slag (molten Ti-containing blast furnace slag and molten Ti slag) were discussed by thermodynamic calculation and specific experiments. The results of thermodynamic calculation indicated that the increase of SiO2 addition mass and CO2 oxidation time can promote the transformation of anosovite and sphene to rutile. The experiment results showed that the phase composition of modification slag was only rutile under the SiO2 addition mass of 110 g and the CO2 oxidation time of 180 s. Moreover, the formation theory of rutile was investigated. Using CO2 as an oxidizing gas can not only prepare rutile but also achieve carbon neutrality, which is a clean preparation method.

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含钛混合熔渣CO2氧化法清洁制备金红石

摘要通过热力学计算和具体实验，探讨了sio2和co2对含钛混合熔渣(含钛高炉熔渣和含钛熔渣)结晶行为的影响。热力学计算结果表明，增加sio2添加量和CO 2氧化时间可以促进铁云石和榍石向金红石的转变。实验结果表明，当sio2添加质量为110 g, CO 2氧化时间为180 s时，改性渣的物相组成仅为金红石。并对金红石的形成机理进行了研究。利用co2作为氧化气体制备金红石，既可实现碳中和，是一种清洁的制备方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Green Processing and Synthesis CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

6.70

自引率

9.30%

发文量

审稿时长

7 weeks

期刊介绍： Green Processing and Synthesis is a bimonthly, peer-reviewed journal that provides up-to-date research both on fundamental as well as applied aspects of innovative green process development and chemical synthesis, giving an appropriate share to industrial views. The contributions are cutting edge, high-impact, authoritative, and provide both pros and cons of potential technologies. Green Processing and Synthesis provides a platform for scientists and engineers, especially chemists and chemical engineers, but is also open for interdisciplinary research from other areas such as physics, materials science, or catalysis.

Clean preparation of rutile from Ti-containing mixed molten slag by CO2 oxidation

Abstract

Clean preparation of rutile from Ti-containing mixed molten slag by CO₂ oxidation