| 摘要 |
<p>PURPOSE: To prevent the formation of sediment in a dissolution tank and the flying of iron chloride powder out of the dissolution tank in a wet-type recovery of the iron chloride powder such as FeCl2 powder. CONSTITUTION: Iron chloride powder is transported to a dissolution tank by the flow of a non-oxidizing gas and the non-oxidizing gas is bubbled in the tank to dissolve the iron chlorine powder in a liquid. The use of the non- oxidizing gas as a carrier gas enables the suppression of hydration to the iron chloride powder during transportation, the reduction of the amount of the dissolved oxygen in the liquid in the tank, the efficient deaeration of the oxygen dissolved in the liquid by bubbling, and the extension of the contact time of the liquid with the iron chloride powder. These effects suppress the formation of iron sediment in the liquid.</p> |
