DECARBONIZATION PROCESS FOR CARBOTHERMICALLY PRODUCED ALUMINUM
    3.
    发明申请
    DECARBONIZATION PROCESS FOR CARBOTHERMICALLY PRODUCED ALUMINUM 有权
    用于制造碳酸氢盐的脱碳工艺

    公开(公告)号:US20100147113A1

    公开(公告)日:2010-06-17

    申请号:US12334687

    申请日:2008-12-15

    IPC分类号: C22B21/02

    CPC分类号: C22B21/02 C22B5/06 C22B21/064

    摘要: A method of recovering aluminum is provided. An alloy melt having Al4C3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700° C. to about 900° C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al4C3 precipitates by flotation, resulting in two phases with the Al4C3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al4C3 precipitates through decanting.

    摘要翻译: 提供铝的回收方法。 提供具有Al 4 C 3和铝的合金熔体。 将该混合物冷却,然后在约700℃至约900℃的温度下,向合金熔体中加入足够量的细分散气体。回收的铝是脱碳碳氢化生产的铝,其中添加 足够量的精细分散的气体通过浮选来实现铝与Al 4 C 3沉淀物的分离,导致Al 4 C 3沉淀物为上层和脱碳铝为下层的两相。 然后通过倾析从Al 4 C 3沉淀物中回收铝。

    Carbothermic aluminum production apparatus, systems and methods

    公开(公告)号:US07854783B2

    公开(公告)日:2010-12-21

    申请号:US12722354

    申请日:2010-03-11

    IPC分类号: C22B4/02

    摘要: Apparatus, systems and methods for carbothermically producing aluminum are disclosed. The systems may include a reactor and an electrical supply. The reactor may include 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 may be in communication with a molten bath of the reactor, and the multiphase current supplied thereto may be 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.

    Alumina distribution in electrolysis cells including inert anodes using bubble-driven bath circulation
    6.
    发明授权
    Alumina distribution in electrolysis cells including inert anodes using bubble-driven bath circulation 失效
    电解槽中的氧化铝分布包括使用气泡驱动的浴循环的惰性阳极

    公开(公告)号:US06511590B1

    公开(公告)日:2003-01-28

    申请号:US09685483

    申请日:2000-10-10

    IPC分类号: C25C308

    CPC分类号: C25C3/08

    摘要: This invention relates to the use of bubble-driven flow to enhance the dissolution and distribution of alumina in an aluminum electrolysis cell operating with inert anodes. By harnessing the driving force of bubbles rising along the sides of a sloped anode to induce circulation in a cell and by using a group of anodes to amplify the effect, alumina distribution can be maintained close to or at saturation without formation of muck/sludge. Alumina fed through point feeders at specific locations can be distributed throughout the entire cell rather than sinking to the bottom of the cell below the feed location. For a given circulation pattern, feeder locations can be optimized.

    摘要翻译: 本发明涉及使用气泡驱动的流动来增强在用惰性阳极操作的铝电解池中氧化铝的溶解和分布。 通过利用沿着倾斜阳极的侧面上升的气泡的驱动力以诱发电池中的循环,并且通过使用一组阳极来扩大该效果,氧化铝分布可以保持接近或饱和,而不会形成淤泥/污泥。 通过特定位置处的点进料器进料的氧化铝可以分布在整个细胞中,而不是沉入到进料位置下方的细胞底部。 对于给定的循环模式,可以优化馈线位置。

    Metal recovery from dross
    7.
    发明授权
    Metal recovery from dross 失效
    从渣滓回收金属

    公开(公告)号:US4772320A

    公开(公告)日:1988-09-20

    申请号:US31282

    申请日:1987-03-30

    IPC分类号: C22B21/00

    CPC分类号: C22B21/0069 Y02P10/212

    摘要: In a system for treating and managing hot aluminum dross, the dross is compacted and delivered by a pair of "squeeze" rolls in a continuous semi-solid sheet, readily broken up for further treatment or disposal. The rolls may be cooled or heated as required to condition the dross appropriately, for storage or immediate further treatment. Ribs on the rolls and/or a stepped "break" chute downstream of the rolls may be used to break the compacted dross into "patties" for convenient handling.

    摘要翻译: 在用于处理和管理热铝渣的系统中,通过一对连续半固体片中的“挤压”辊将渣滓压实并输送,容易分解以进一步处理或处置。 辊可以根据需要冷却或加热以适当地调节浮渣,以便储存或立即进一步处理。 辊子上的肋骨和/或辊子下游的阶梯式“断裂”滑槽可用于将压实的渣滓破碎成“馅饼”以便于处理。

    Decarbonization process for carbothermically produced aluminum
    8.
    发明授权
    Decarbonization process for carbothermically produced aluminum 有权
    碳热还原铝的脱碳工艺

    公开(公告)号:US09068246B2

    公开(公告)日:2015-06-30

    申请号:US12334687

    申请日:2008-12-15

    CPC分类号: C22B21/02 C22B5/06 C22B21/064

    摘要: A method of recovering aluminum is provided. An alloy melt having Al4C3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700° C. to about 900° C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al4C3 precipitates by flotation, resulting in two phases with the Al4C3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al4C3 precipitates through decanting.

    摘要翻译: 提供铝的回收方法。 提供具有Al 4 C 3和铝的合金熔体。 将该混合物冷却,然后在约700℃至约900℃的温度下,向合金熔体中加入足够量的细分散气体。回收的铝是脱碳碳氢化生产的铝,其中添加 足够量的精细分散的气体通过浮选来实现铝与Al 4 C 3沉淀物的分离,导致Al 4 C 3沉淀物为上层和脱碳铝为下层的两相。 然后通过倾析从Al4C3沉淀物中回收铝。

    CARBOTHERMIC ALUMINUM PRODUCTION APPARATUS, SYSTEMS AND METHODS
    9.
    发明申请
    CARBOTHERMIC ALUMINUM PRODUCTION APPARATUS, SYSTEMS AND METHODS 有权
    CARBOTHERMIC铝生产设备,系统和方法

    公开(公告)号:US20100162850A1

    公开(公告)日:2010-07-01

    申请号:US12722354

    申请日:2010-03-11

    IPC分类号: C22B4/02 C22B21/02

    摘要: Apparatus, systems and methods for carbothermically producing aluminum are disclosed. The systems may include a reactor and an electrical supply. The reactor may include 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 may be in communication with a molten bath of the reactor, and the multiphase current supplied thereto may be 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.

    摘要翻译: 公开了用于碳热发生铝的设备,系统和方法。 这些系统可以包括反应器和电源。 电抗器可以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。 电极可以与反应器的熔池连通,并且提供给其的多相电流可以通过浴以加热反应器。 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。

    Carbothermic aluminum production apparatus, systems and methods
    10.
    发明授权
    Carbothermic aluminum production apparatus, systems and methods 有权
    碳化铝生产设备,系统和方法

    公开(公告)号:US07704443B2

    公开(公告)日:2010-04-27

    申请号:US11950300

    申请日:2007-12-04

    摘要: Apparatus, systems and methods for carbothermically producing aluminum are disclosed. The systems may include a reactor and an electrical supply. The reactor may include 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 may be in communication with a molten bath of the reactor, and the multiphase current supplied thereto may be 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.

    摘要翻译: 公开了用于碳热发生铝的设备,系统和方法。 这些系统可以包括反应器和电源。 电抗器可以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。 电极可以与反应器的熔池连通,并且提供给其的多相电流可以通过浴以加热反应器。 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。