| 摘要 |
<p>A process for purifying aluminium comprises treating impure aluminium in the form of sheets, wires, turnings, chips, granules or possibly scrap, without any pretreatment thereof, in the solid state, with liquid mercury at 300 DEG to 420 DEG C. in the absence of oxygen, separating undissolved impurities from the solution which is then cooled to obtain amalgam crystals, heat treating the crystals to distil off the mercury and recover purified aluminium. Traces of mercury may be removed by bubbling an inert gas through a melt of the aluminium under a vacuum. An apparatus for carrying out this process is also described.</p> |
