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 Schlesinger这项有关矿物加工的研究将评估熔融炉渣，哑光和铜金属与当前几乎所有原发和次级铜生产炉中当前使用的“ Mag-Chrome”材料的潜在替代折磨的相互作用。 用过的杂志冰淇淋折射率被标记为危险废物，目前没有金属行业像铜冶炼厂的运营商，转换器和燃烧炉一样依赖它们。 已经确定了两个潜在的替代系统：来自镁 - 钙化系统的“ Mag-Doloma”耐火材料，以及来自镁 - 氧化铝系统的“ Mag-Spinel”或“ Mag-Spinel”或“ Alumina-Spinel”组成。 工艺矿物学技术将用于检查替代折射的实际机制，该机制是由铜金属生产的熔融阶段（包括原代矿石和废料）生产的熔融相。 通过与澳大利亚的提取冶金研究中心建立工作关系，可以实现美国大学工艺矿物学和冰冻研究的最佳利用，以及澳大利亚熔体化学和高温热力学方面的专业知识。 铁，铜和铝是全世界生产的主要主要金属。 铁和铜的生产都大量使用了含有铬的折射率。 但是，铬为二手折射率构成了一个处置问题。 这项国际研究工作有可能消除另一个危险的“垃圾填埋场”问题。