By experimentation and research a new two-step process for precipitating and reproducing 'Na2U2O7' has been developed.This process can overcome the deficiency of the conventional two-step process for treatment of heap leaching solution.The deficiency is that the remaining acid in the leaching solution cannot be reutilized and the filtration of iron's hydroxide is poor.The new two-step process is rather simple to use and is less expensive.It is of practical significance for those high grade deposits with little reserves ...
