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在使用碳质阳极的条件下,由于阳极糊的消耗、设备的复杂、过多的劳动消耗,不仅造成了铝成本的提高,而且对工人的身体健康也是非常不利的。因此,我们有改换碳质阳极的必要。根据研究,如果应用氧化物阳极,就可以完全免除上述缺点,从而降低了铝的成本。这就是金属氧化物阳极的绝对优点。现在,让我们研究应用金属氧化物阳极电解冰晶石——氧化铝熔体的可能性及其他有关问题。以前在金属阳极方面探讨类似问题的时候,我们曾经发现,在电解过程中,在金属的表面上复有一层坚硬的氧化物,即或是很难被氧化的金属如Ag、Ni、Cr、Cu也都不例外。可见在使用金属氧化物电解和使用金属阳极电解并没有什么不同。
The use of carbonaceous anodes, due to the consumption of the anode paste, the complex equipment, excessive labor costs, not only resulted in an increase in the cost of aluminum, but also to the health of workers is also very unfavorable. Therefore, we need to change the carbonaceous anode. According to the research, if the oxide anode is used, the above disadvantages can be completely eliminated, thereby reducing the cost of aluminum. This is the absolute advantage of metal oxide anodes. Now, let us examine the possibility of using a metal oxide anodic cryolite-alumina melt and other related issues. In the past when discussing similar problems with metal anodes, we have found that there is a layer of hard oxide on the surface of the metal in the electrolysis, ie, metals that are hard to be oxidized such as Ag, Ni, Cr, Cu Is no exception. It can be seen that there is no difference between using metal oxide electrolysis and using metal anode electrolysis.