Environmentally Conscious Manufacturing: Slag and Matte Interactions with Chrome-Free Refractories for Copper Production

环保制造：铜生产中炉渣和冰铜与无铬耐火材料的相互作用

• 批准号: 9528815
• 负责人: Mark Schlesinger
• 金额: $ 22.84万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9528815&HistoricalAwards=false
• 关键词: Environmentally; Conscious; Manufacturing; Slag; Matte

9528815 Schlesinger This research on mineral processing will assess the interaction of molten slags, mattes, and copper metal with potential replacement refractories for the "mag-chrome" materials currently used in nearly all primary and secondary copper production furnaces. Spent mag-chrome refractories have been labeled as hazardous wastes and no metals industry is currently as dependent on them as the operators of copper smelter, converters, and fire-refining furnaces. Two potential replacement systems have been identified: "mag-doloma" refractories from the magnesia-calcia system, and "mag-spinel" or "alumina-spinel" compositions from the magnesia-alumina system. Process mineralogy techniques will be used to examine the actual mechanisms of attack of replacement refractories by the molten phases employed in the production of copper metal, both from primary ores and scrap. By establishing a working relationship with an Extractive Metallurgy Research Center in Australia, optimal use of the US University's strengths in process mineralogy and refractories research, and the Australian expertise in melt chemistry and high-temperature thermodynamics can be realized. Iron, copper, and aluminum are major primary metals manufactured all over the world. Refractories containing chromium are used heavily in both iron and copper production. However, chromium poses a disposal problem for used refractories. This international research effort has the potential to eliminate one more hazardous "landfill" problem.

9528815 施莱辛格 这项关于矿物加工的研究将评估熔融炉渣、冰铜和铜金属与目前几乎所有一次和二次铜生产炉中使用的“镁铬”材料的潜在替代耐火材料的相互作用。 废镁铬耐火材料已被列为危险废物，目前没有任何金属行业像铜冶炼厂、转炉和火炼炉的运营商那样依赖它们。 已经确定了两种潜在的替代系统：来自氧化镁-氧化钙系统的“镁白云石”耐火材料和来自氧化镁-氧化铝系统的“镁尖晶石”或“氧化铝-尖晶石”组合物。 工艺矿物学技术将被用来检查在生产铜金属时所采用的熔融相对替代耐火材料的实际侵蚀机制，包括原生矿石和废料。 通过与澳大利亚的提取冶金研究中心建立合作关系，可以实现美国大学在工艺矿物学和耐火材料研究方面的优势以及澳大利亚在熔体化学和高温热力学方面的专业知识的最佳利用。 铁、铜和铝是世界各地生产的主要初级金属。 含铬耐火材料在铁和铜的生产中大量使用。 然而，铬对用过的耐火材料造成处置问题。 这项国际研究工作有可能消除另一个危险的“垃圾填埋”问题。