Fundamental Studies on Electrochemical Separation Process for Titanium from Mixed Scrap

混合废钢电化学分离钛工艺基础研究

• 批准号: 1762522
• 负责人: Ramana Reddy
• 金额: $ 38.25万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1762522&HistoricalAwards=false
• 关键词: Fundamental; Studies; Electrochemical; Separation; Process

This grant will support fundamental research that will contribute new knowledge related to an electrochemical manufacturing process, promoting the progress of science and advancing national prosperity. The increase in demand for titanium in transportation industries has created a need for the development of an alternate technology that is low cost, energy-efficient and environmentally benign. This award supports research to enable a novel pathway for the electrochemical manufacturing of titanium from domestic metal sources (i.e. scrap) using ionic liquid electrolytes at low temperatures (about 100 degree centigrade). Electrochemical studies will be combined with computational process modeling. It is envisioned that this new low temperature electrochemical manufacturing of titanium will be an environmentally benign process with significant reduction in energy consumption and cost as compared to the conventional process. Therefore, results obtained from this research will benefit the U.S. economy and society. This research involves several disciplines including electrochemistry, metallurgical and materials engineering, computational science and manufacturing. The multi-disciplinary approach in research and training program on manufacturing technology will educate students, build a future work force, broaden participation of underrepresented student groups in research activities and positively impact STEM and engineering programs.The new electrochemical manufacturing process studied in this work can overcome several limitations existing in the lightweight metals manufacturing process involving high temperature thermal process resulting high losses of metal values, high energy consumption and generation of greenhouse gases. However, some scientific and engineering barriers are yet to be overcome to realize the full potential of electrochemical manufacturing process. This research is to fill the knowledge gap on fundamental understanding of science of titanium metal manufacturing technology. Both experimental and electrochemical modeling studies will be conducted. The research will generate fundamental understanding of thermodynamic and transport properties of electrolytes and electrode materials, and diffusion coefficients of the electro-active species. It will also significantly enhance our fundamental understanding of separation of complex chemical species and electrochemical reaction mechanisms. This will be input to the development of the electrochemical process (CFD) model. The electrode charge-transfer reactions and the reaction kinetics for species will be incorporated into this new model. The electric field, fluid flow, current density and species distribution at the electrodes as a function of applied voltages, temperatures and species concentrations will be modeled. The model will be validated using the experimental results. Correlations of model results verified with experimental parameters results, as well as process modeling and optimization for the metal manufacturing process will be carried out. Results of this research are potentially transformative to lightweight metals manufacturing processes.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这笔赠款将支持基础研究，贡献与电化学制造过程相关的新知识，促进科学进步和促进国家繁荣。交通运输行业对钛的需求增加，需要开发一种低成本、节能且环保的替代技术。该奖项支持研究，以实现在低温（约 100 摄氏度）下使用离子液体电解质从国内金属源（即废料）电化学制造钛的新途径。电化学研究将与计算过程建模相结合。预计这种新型低温电化学制造钛将是一种环境友好的工艺，与传统工艺相比，能耗和成本显着降低。因此，这项研究取得的成果将有利于美国经济和社会。该研究涉及电化学、冶金与材料工程、计算科学和制造等多个学科。制造技术研究和培训项目的多学科方法将教育学生，培养未来的劳动力，扩大代表性不足的学生群体对研究活动的参与，并对 STEM 和工程项目产生积极影响。这项工作中研究的新电化学制造工艺可以克服轻质金属制造工艺中存在的一些局限性，涉及高温热处理，导致金属价值高损失、高能耗和产生温室气体。然而，要充分发挥电化学制造工艺的潜力，仍有一些科学和工程障碍需要克服。本研究旨在填补钛金属制造技术科学基础认识的知识空白。将进行实验和电化学建模研究。该研究将对电解质和电极材料的热力学和传输特性以及电活性物质的扩散系数产生基本的了解。它还将显着增强我们对复杂化学物质分离和电化学反应机制的基本理解。这将被用于电化学过程 (CFD) 模型的开发。电极电荷转移反应和物质的反应动力学将被纳入这个新模型中。将对电极处的电场、流体流动、电流密度和物质分布作为所施加的电压、温度和物质浓度的函数进行建模。该模型将使用实验结果进行验证。将验证模型结果与实验参数结果的相关性，以及金属制造过程的过程建模和优化。这项研究的结果可能会改变轻质金属制造工艺。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Electroanalytical study of Active Species to Deposit Ti Alloy from 1-Butyl-3methylimidazolium Chloride-Aluminum Chloride Ionic Liquid

1-丁基-3甲基氯化咪唑-氯化铝离子液体沉积钛合金活性物质的电分析研究

• 发表时间: 2020
• 期刊: ECS transactions
• 作者: Pravin S. Shinde, Yuxiang Peng

Conductivity of 1-Ethyl-3-methylimidazolium Chloride (EMIC) and Aluminum Chloride (AlCl3) Ionic Liquids at different Temperatures and AlCl3 Mole Fractions”, ECS Transactions, Vol 98 (10), pp.129, 2020

不同温度和 AlCl3 摩尔分数下 1-乙基-3-甲基咪唑氯化物 (EMIC) 和氯化铝 (AlCl3) 离子液体的电导率，ECS Transactions，第 98 卷 (10)，第 129 页，2020 年

• DOI: 10.1149/09810.0129ecst
• 发表时间: 2020
• 期刊: ECS transactions
• 作者: Pravin S. Shinde, Aninda N.

Electrodeposition of Titanium Aluminide (TiAl) Alloy from AlCl3–BMIC Ionic Liquid at Low Temperature

AlCl3·BMIC 离子液体低温电沉积铝化钛 (TiAl) 合金

• DOI: 10.1007/978-3-030-36296-6_153
• 发表时间: 2020
• 期刊: The minerals metals materials series
• 作者: Pravin S. Shinde, Yuxiang Peng

Computational Modeling of Current Density Distribution and Secondary Resistances for Aluminum Electrorefining in Ionic Liquids

离子液体中铝电解精炼电流密度分布和二次电阻的计算模型

• DOI: 10.1007/978-3-030-65261-6_89
• 发表时间: 2021
• 期刊: The minerals metals materials series
• 作者: Md. Khalid Nahian, Y. Peng

Effect of Dissolution of Titanium Ions on Ti Alloys Electrodeposition from EMIC-AlCl3 Ionic Liquid at Low Temperature

钛离子溶解对EMIC-AlCl3离子液体低温电沉积钛合金的影响

• DOI: 10.1007/978-3-030-65253-1
• 发表时间: 2021
• 期刊: The minerals metals materials series
• 作者: Shinde S. Pravin, Reddy