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本文介绍了用蒸馏和填加P_2O_5相结合再生超水分废硝酸—20L的方法。在保证更生产品全面满足军标的前提下,使H_2O和H_3PO_4的百分含量分别为≤1.6±0.1和1.0-1.2,回收率通常在90％以上。并建立了通过理论回收率控制实际回收率的关系。
This paper describes the use of distillation and P_2O_5 added combined regeneration of super-waste water nitric acid -20L method. Under the precondition of ensuring the remanufactured products fully meet the military standard, the percentages of H_2O and H_3PO_4 are respectively ≤1.6 ± 0.1 and 1.0-1.2, and the recovery rate is usually above 90%. And established the relationship between the theoretical recovery and the actual recovery rate.