| 摘要 |
<p>PCT No. PCT/AU94/00564 Sec. 371 Date Sep. 10, 1996 Sec. 102(e) Date Sep. 10, 1996 PCT Filed Sep. 21, 1994 PCT Pub. No. WO95/08652 PCT Pub. Date Mar. 30, 1995A method and apparatus of introducing one or more reagents into a rotary and/or elongate kiln in which titaniferous material is being treated eg upgraded wherein the reagent(s) is introduced (I) at a plurality of locations along the length of the kiln and/or (II) at or adjacent to a discharge end of the kiln. The reagents may comprise one or more of chlorine-containing compounds, sulphur, sulphur-containing compounds, magnesium compounds, manganese compounds, fluxes and glass-forming reagents, including a borate salt or mineral. The reagent may be mixed with the discharge end coal or introduced separately.</p> |
