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1.发明公开METHOD USING SELECTED CARBONS TO REACT WITH AL2O AND AL VAPORS IN THE CARBOTHERMIC PRODUCTION OF ALUMINUM 有权方法，使用选择的煤与AL2O-和Al-STEAM反应中铝含量的卡博热采
公开(公告)号：EP1689895A1
公开(公告)日：2006-08-16
申请号：EP04813147.8
申请日：2004-12-02
发明人： FRUEHAN, Richard, J. , LI, Yun , CARKIN, Gerald
CPC分类号： C22B21/0053 , B01D53/46 , C01B32/914 , C22B5/10 , C22B21/02
摘要： In a method for recovering Al from an off-gas (3,4) produced during carbothermic reduction of aluminum utilizing at least one smelter (1,2), the off-gas (3,4) is directed to an enclosed reactor (5) which is fed a supply of wood charcoal (7) having a porosity of from about 50 vol.% to 85 vol.% and an average pore diameter of from about 0.05 µm to about 2.00 µm, where the wood charcoal (7) contacts the off-gas (3,4) to produce at least Al4C3 (6), which is passed back to the smelter (1,2).
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2.发明授权METHOD USING SELECTED CARBONS TO REACT WITH AL2O AND AL VAPORS IN THE CARBOTHERMIC PRODUCTION OF ALUMINUM 有权方法，使用选择的煤与AL2O-和Al-STEAM反应中铝含量的卡博热采
公开(公告)号：EP1689895B1
公开(公告)日：2007-11-14
申请号：EP04813147.8
申请日：2004-12-02
发明人： FRUEHAN, Richard, J. , LI, Yun , CARKIN, Gerald
CPC分类号： C22B21/0053 , B01D53/46 , C01B32/914 , C22B5/10 , C22B21/02
摘要： In a method for recovering Al from an off-gas (3,4) produced during carbothermic reduction of aluminum utilizing at least one smelter (1,2), the off-gas (3,4) is directed to an enclosed reactor (5) which is fed a supply of wood charcoal (7) having a porosity of from about 50 vol.% to 85 vol.% and an average pore diameter of from about 0.05 µm to about 2.00 µm, where the wood charcoal (7) contacts the off-gas (3,4) to produce at least Al4C3 (6), which is passed back to the smelter (1,2).
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公开(公告)号：EP2414762A1
公开(公告)日：2012-02-08
申请号：EP09789554.4
申请日：2009-03-31
申请人： Alcoa Inc.
摘要： In an embodiment, an electrode holder assembly (100) includes a current delivery base (105) having an interface (204) sufficiently designed to distribute an electrical current; a buss plate (200) sufficiently designed to provide the electrical current to the current delivery base (105); a shoe-ring assembly comprising: a plurality of electrical shoes (120), wherein the electrical current from the current delivery base (105) is distributed to the plurality of electrical shoes (120) for distribution to an electrode (400); a plurality of dual stroke cylinders (190); and a mounting ring (220); and a hydraulic assembly (300) comprising a grip ring (310) having an opening sufficiently designed to engage an outer surface of the electrode (400); a pressurizing cylinder (320) sufficiently designed to constrict and relax the grip ring (310); and at least one dual stroke cylinder (330) sufficiently designed to control horizontal movement of the grip ring (310) and the electrode (400).
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