Method for separating tramp elements in molten iron: T24-006
Introduction of Tohoku University Technology (T24-006): Achieving copper removal with a metal Cu composition comparable to actual operation without adding sulfides.
In the recycling smelting using iron scrap, elements such as Cu, Ni, and Sn, which are difficult to remove oxidatively, are referred to as tramp elements, and they hinder the recycling rate of iron raw materials (scrap). In particular, Cu is expected to become a bottleneck in iron recycling. In response, the inventors have developed a technology in their earlier patent No. 7515880 that selectively electro-deposits only Cu ions from molten iron onto the cathode. However, the examples provided had a Cu composition in the metal of only a few percent, which is far from practical operations, and since sulfides were added, desulfurization was necessary in actual operations. The present invention is a technology that achieves copper removal at a Cu composition in the metal comparable to practical operations without the addition of sulfides by adjusting reaction forms and atmospheres.
- Company：Tohoku Techno Arch Co., Ltd.
- Price：Other
