A procedure for the recovery of uranium as ammonium diuranate, from an aqueous solution containing uranile fluoride and hydrogen fluoride (Machine-translation by Google Translate, not legally binding)

摘要

A process for the recovery of uranium like ammonium diuranate, from an aqueous solution containing uranyl fluoride and hydrogen fluoride, characterized in that a slightly lower amount of diluted ammonium hydroxide is first introduced into said solution. To the stoichiometric, which reacts only with the hydrogen fluoride thus forming ammonium fluoride while maintaining a small amount of hf without neutralizing to form a slightly acid solution of a ph of about 6.1 ± 0.2, and by the fact that subsequently diluted ammonium hydroxide is added to the resulting solution of a normality below 3 in such an amount as to provide sufficient ammonium ions to react with uranyl fluoride and hydrogen fluoride, which is formed ammonium diuranate, which precipitates from the solution. (Machine-translation by Google Translate, not legally binding)