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公开(公告)号：US5628878A
公开(公告)日：1997-05-13
申请号：US241542
申请日：1994-05-12
摘要： A method of reducing the airburning tendency of petroleum coke and carbon anodes made therefrom includes calcining the coke and spray quenching the calcined coke with an additive-containing water. The additive includes an effective amount of a compound of aluminum which is soluble in the quench water. The additive is deposited on the quenched coke product surface and protects the coke from oxidation or premature combustion when in contact with the atmosphere at high temperatures. The additive-coated coke can then be formed into an anode which also has a reduced tendency to airburn during use in a high temperature environment such as an aluminum reduction cell or an electric furnace operation.
摘要翻译： 减少由其制成的石油焦炭和碳阳极的空气燃烧趋势的方法包括煅烧焦炭并用含添加剂的水喷雾煅烧煅烧焦炭。 添加剂包括有效量的可溶于骤冷水的铝化合物。 添加剂沉积在淬火的焦炭产品表面上，并在高温下与大气接触时保护焦炭不被氧化或过早燃烧。 然后可以将添加剂涂覆的焦炭形成为阳极，其在诸如铝还原电池或电炉操作的高温环境中在使用期间也具有降低的空气燃烧倾向。
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2.发明授权Detoxification of aluminum spent potliner by thermal treatment, lime slurry quench and post-kiln treatment 失效通过热处理，石灰浆料淬火和后窑处理对废铝锅炉进行排毒
公开(公告)号：US5164174A
公开(公告)日：1992-11-17
申请号：US774941
申请日：1991-10-11
申请人： Donald B. Banker , Dennis G. Brooks , Euel R. Cutshall , Douglas D. Macauley , Dennis F. Strahan
发明人： Donald B. Banker , Dennis G. Brooks , Euel R. Cutshall , Douglas D. Macauley , Dennis F. Strahan
IPC分类号： A62D3/00 , A62D3/33 , A62D3/34 , A62D3/36 , A62D3/38 , A62D101/22 , A62D101/26 , A62D101/45 , A62D101/49 , C01F7/04 , C01F11/22 , C22B7/00
CPC分类号： A62D3/38 , A62D3/33 , C01F11/22 , A62D2101/45 , A62D2101/49 , A62D2203/04 , A62D2203/10
摘要： A method is disclosed for detoxification of aluminum spent potliner by thermal treatment in a rotary kiln while blended with limestone and metal silicates to destroy cyanides and convert the soluble fluoride salts to relatively insoluble calcium fluoride and fluoride-bearing minerals, quenching the hot kiln discharge with an aqueous lime slurry to convert residual soluble fluoride salts on the particle surfaces to an insoluble form, and treating aqueous landfill runoff and capture with lime or limestone and recycling the treated water to the process. The treated material is suitable for landfilling in a non-hazardous waste landfill or marketing as a raw material. Air emissions are innocuous and there is no aqueous discharge.
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公开(公告)号：US4784733A
公开(公告)日：1988-11-15
申请号：US124221
申请日：1987-11-23
申请人： Euel R. Cutshall , Luther O. Daley
发明人： Euel R. Cutshall , Luther O. Daley
摘要： A method is disclosed for recycling spent potliner carbon from an aluminum reduction cell. The spent potliner is treated so as to avoid the cracking problem normally seen when the potliner is used in substantial amounts in Soderberg anodes.
摘要翻译： 公开了一种用于从铝还原电池回收废弃的废铁的碳的方法。 处理废弃的水槽，以避免在Soderberg阳极中大量使用锅炉时通常看到的开裂问题。
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