| 摘要 |
A dry slag atomization is applied in upgrading slags. The atomized slag may be subjected to a leaching process to produce upgraded slag. In the case of titania-rich slags, conveniently, the titanium in the atomized slag has been oxidized to Ti4+, which does not dissolve in the leaching medium. In one embodiment, a method comprising receiving molten slag, atomizing the slag with material in a glass phase and material in a crystalline phase, wherein atomizing is carried out with varying gas composition to modify oxidation states and chemical make-up of the phases, thereby permitting upgrading of the slag. |
