Hmm... maybe. It would depend on what stage of the process. Sounds like it starts with iron oxide, which wouldn't burn per se. But it also sounds like the iron

Hmm... maybe. It would depend on what stage of the process. Sounds like it starts with iron oxide, which wouldn't burn per se. But it also sounds like the iron oxide is reduced to iron nanoparticles with dissolved nitrogen in the process. Those would probably burn well, and even if they didn't, you might wind up with a bunch of molten iron, thermite-style. That wouldn't be good, either.