Fuel preparation for use in the production of medical isotopes

A method for producing a low enriched uranium fuel as reactor material, the method comprising the steps of:

• (i) providing at least one uranium oxide;
• (ii) adding at least one liquid acid compound to the at least one uranium oxide to produce a solution of one or more uranyl nitrate compounds;
• (iii) subjecting the one or more uranyl nitrate compounds to a heat-based aqueous dissolution step to produce a solution containing at least one uranyl nitrate compound;
• (iv) filtering the resulting solution to remove any insoluble residues;
• and
• (v) collecting the purified solution of the at least one uranyl nitrate compound.

A method for producing a low enriched uranium fuel as reactor material, the method comprising the steps of:

• (A) providing at least one uranium metal or uranium source;
• (B) adding at least one liquid acid compound to the at least one uranium metal or uranium source to produce a solution of one or more uranyl nitrate compounds;
• (C) subjecting the one or more uranyl nitrate compounds to a heat-based aqueous dissolution step to produce a solution containing at least one uranyl nitrate compound;
• (D) filtering the resulting solution to remove any insoluble residues;
• and
• (E) collecting the purified solution of the at least one uranyl nitrate compound.