Study on the Leaching of Sodium Nitrate from Nitratine
The technology on the leaching process of sodium nitrate from nitratine was developed in this work. The effects of leaching duration, solid-to-liquid ratio on the leaching were studied. The results show that the utilizable sodium nitrate leaching ratio from the nitratine reach 90.2%, for leaching duration of 15 minute and at the solid-to-liquid ratio of 1.0 g.g-1. A new scheme of step-by-step spray is advanced, according to the result of leaching repeatedly, which increased the concentration of lixiviation up to 29.58%( 400g.L-1) at 25°C. The results reported will be useful for leaching process design and control.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
X. X. Ma and J. J. Yuan, "Study on the Leaching of Sodium Nitrate from Nitratine", Advanced Materials Research, Vols. 236-238, pp. 2539-2543, 2011