Is it intended that there is no recipe for electrolyzing ferrous chloride dust? It has to be melted in order to be electrolyzed unlike other dichlorides for which recipes are present. Did you simply forget to add a corresponding recipe?

Those other Recipes are holdovers from older Versions and cost more Energy because of that. It is always stupid whenever I have to keep old Stuff and Mechanics in because of either earlier mistakes or me being lazy earlier…