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1. 发明公开

EP2471961A1 Apparatus and method of carbothermic aluminium production 有权
标题翻译： Vorrichtung und Verfahren zur carbothermischen Aluminiumerzeugung
公开(公告)号：EP2471961A1
公开(公告)日：2012-07-04
申请号：EP12161298.0
申请日：2008-11-20
申请人： Alcoa Inc.
发明人： Lepish, Joseph A. , Carkin, Gerald E.
IPC分类号： C22B4/08 , C22B21/02 , F27B3/08 , F27B3/20 , H05B3/00 , H05B3/60 , H05B1/02 , F27D11/04 , F27D11/10 , F27B3/18 , F27D13/00
CPC分类号： C22B4/08 , C22B21/02 , F27B3/085 , F27B3/20 , H05B1/023 , H05B3/0004 , H05B3/60
摘要： The apparatus system includes a carbothermic reactor and an electrical supply. The reactor includes a plurality of side-entering electrodes and a top-entering electrode. The electrical supply may be operable to supply multiphase current to the side-entering electrodes and/or the top-entering electrodes. The electrodes are in communication with a molten bath of the reactor, and the multiphase current supplied thereto is passed through the bath to heat the reactor. The amount of current supplied to various electrode sets may be adjusted to facilitate tailored heating of the molten bath. In the method of carbothermic aluminium production using a reactor with a top-entering electrode and plural side-entering electrodes a feedstock supply path is provided defined by a port in the cover of the the reactor and a top electrode entering through said port in the reactor chamber. Off-gas from the carbothermic reactor is flown into the feedstock supply path to preheat the feedstock of aluminium and carbon reductant.
摘要翻译：该装置系统包括碳热反应堆和电源。电抗器包括多个侧面进入电极和顶部进入电极。电源可以用于向侧进入电极和/或顶部进入电极提供多相电流。电极与反应器的熔池连通，供给的多相电流通过熔池加热反应器。可以调节供应到各种电极组的电流量，以便于熔融浴的定制加热。在使用具有顶部进入电极的反应器和多个侧面进入电极的碳热还原铝的制造方法中，由反应器的盖中的端口和通过反应器中的所述端口进入的顶部电极提供原料供给路径室。来自碳热还原反应器的废气流入原料供应路径以预热铝和碳还原剂的原料。

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