| 摘要 |
<p>A system for causticisation of a Bayer process liquor comprising a reactor vessel and a solid/liquid separator. The reactor vessel comprises a wall; a closed upper end and a closed lower end; a liquor inlet for introducing a Bayer process liquor to the reactor vessel; a causticising agent inlet for introducing a quantity of a causticising agent into the reactor vessel to produce a reaction slurry bed within the reactor vessel having a reaction slurry bed level; a gas inlet for introducing a non-reactive gas into the closed upper end to form a gas cap above the reaction slurry bed level; wherein, the causticising agent inlet has a first end terminating outside of the reactor vessel and a second end terminating inside of the reactor vessel within the gas cap, and the liquor inlet has a first end terminating outside of the reactor vessel and a second end terminating inside of the reactor vessel within the gas cap.</p> |
