发明授权
- 专利标题： Low carbon aluminum production method using single furnace carbothermic reduction operated in batch mode
- 专利标题（中）： 使用单炉碳热还原的低碳铝生产方法以批式运行
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申请号： US11676017申请日： 2007-02-16
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公开(公告)号： US07556667B2公开(公告)日： 2009-07-07
- 发明人: Richard J. Fruehan
- 申请人： Richard J. Fruehan
- 申请人地址： US PA Pittsburgh
- 专利权人： ALCOA Inc.
- 当前专利权人： ALCOA Inc.
- 当前专利权人地址： US PA Pittsburgh
- 代理机构： Greenberg Traurig, LLP
- 主分类号： C22B21/02
- IPC分类号： C22B21/02
摘要：
A batch process for producing low carbon aluminum using a single carbothermic reactor furnace is disclosed in which the slag making, metal making and carbon extraction is carried out in a single furnace, single compartment reactor. The Al2O and Al vapors generated in slag making and metal making steps are recovered in a vapor recovery reactor, and treated with a carbonaceous material to produce recyclable material comprising Al4C3. The recyclable material is used to assist with one or more subsequent slag making steps.
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