| 摘要 |
<p>A process is provided for the production of a titanium rich slag and pig iron from ilmenite. The ilmenite is fed continuously, together with carbonaceous reductant, and in the absence of fluxes, to the molten bath of a circular d.c. arc furnace, preferably a plasma arc furnace, wherein the molten bath forms the anode and one or more electrodes in the furnace roof form the cathode. The feed materials are preferably preheated using heat contained in the off-gases from the process. Titanium rich slag which can be used as the feed to a chlorine based titanium dioxide production process is recovered continuously or intermittently and pig iron is tapped off as a by-product.</p> |
