HIGH PURITY URANIUM PEROXIDE AFTER REMOVAL OF IMPURITIES ZR, MO, P, HC03

摘要

The invention has as its object a process for the purification of a uranium solution which is contaminated by zirconium. This process consists of bringing the pH of the solution to a value of 1 to 3, then adjusting the pH of the said solution to, and maintaining it at a value of 2.5 to 3 while raising the temperature to a value of around 30 DEG to around 60 DEG C. for a period sufficiently long that there occurs a selective precipitation of at least 70% of the zirconium while the uranium remains in the dissolved state.