美国电气委员会的研究试验室用废钢生产了一种铁箔,方法的基本想法是将废钢置入溶剂中电解,因此产生一种氯和铁化合物。溶剂中送入直流电,其中含有的铁的阳离子和氯的阴离子互相分离,这时使用一种石墨阳极,它和氯不发生反应。利用一个钛金属转鼓作为阴极,能自行转动,铁沉降到转鼓上,但本身并不化合,因此形成不同厚度的纯铁箔。箔的厚度取决于转数。在一座 A research laboratory at the U.S. Electric Commission used scrap to produce a foil. The basic idea of ​​the method was to place the scrap in a solvent for electrolysis, thus producing a chlorine and iron compound. The solvent is fed to a direct current in which the iron cations and the chlorine anions are separated from one another, in which case a graphite anode is used which does not react with chlorine. The use of a titanium drum as the cathode, can rotate on its own, the iron sink to the drum, but not in itself, so the formation of different thickness of pure iron foil. The thickness of the foil depends on the number of revolutions. In one