Air atomization of metallurgical slags for production of a slag by-product, heat recovery, and metal recovery

用于生产炉渣副产品、热回收和金属回收的冶金炉渣空气雾化

• 批准号: 484828-2015
• 负责人: Barati, Mansoor
• 金额: $ 2.08万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=644606
• 关键词: Air; atomization; metallurgical; slags; production

Metallurgical slags are generated at the rate of over 600 million tonnes per year. Although the material is often used in some applications, there are numerous opportunities for producing a variety of higher value-added products from it. Further, thermal energy of slag and valuable metals that remain in the slag from the metal extraction/refining process are usually not recovered. A technology capable of converting slag to a high value product, and at the same time recovering its energy and metal values is highly desired by the metallurgical industry and would have tremendous economic and environmental benefits for the industry and society in general. ****The present research will study atomization of slag by air, to obtain the basic knowledge for the following purposes (a) tailoring the characteristics of atomized slag for various products such as insulation materials, abrasive products, and cement feedstock, (b) establishing the possibility of heat recovery from high temperature slag in the same process, and (c) determining the conditions under which valuable metallic components of slag can be recovered. The work will be carried out as a 3-year activity with the strong support from Hatch as the industry partner. ****The results of this work would be beneficial to both ferrous and non-ferrous industries in Canada with respect to decreasing the energy consumption, increasing the metal yields of the process and/or reducing the overall production costs. These benefits, cascade directly or indirectly into Canada's economy. In addition, conversion of slag to valuable products brings economic and environmental benefits to the industry and the regions of operation as solid waste amount is reduced. Besides the economic and environmental benefits, the proposed work will have a social impact on the minerals and metals industry through training of experts in the fields of metallurgy and resource processing. **

冶金渣以每年超过6亿吨的速度产生。尽管该材料经常用于某些应用中，但是从中有很多机会可以从中生产出各种更高的增值产品。此外，通常不会回收金属提取/炼油过程中矿渣的炉渣和有价值的金属的热能。能够将炉渣转换为高价值产品的技术，同时恢复其能源和金属价值是冶金工业的高度期望，并且将对该行业和整个社会具有巨大的经济和环境利益。 ****本研究将研究空气对炉渣的雾化，以获取以下目的的基本知识（a）为各种产品（例如绝缘材料，磨料产品和水泥原料）量身定制雾化炉渣的特征，（b）确定在同一过程中从高温下恢复热量的可能性，以及（c）在该价值的条件下可以恢复量子，以恢复量子。这项工作将作为三年的活动进行，而Hatch作为行业合作伙伴的大力支持。 ****这项工作的结果将对加拿大的亚属和非有产性产业有益于减少能源消耗，增加过程的金属产量和/或降低整体生产成本。这些好处，直接或间接地级联到加拿大的经济中。此外，将炉渣转换为有价值的产品为行业带来了经济和环境利益，并且由于固体废物量减少了运营区域。除了经济和环境利益外，拟议的工作还将通过培训冶金和资源处理领域的专家对矿物质和金属行业产生社会影响。 **