Purification process

An apparatus for carrying out a process for purifying Mo-99, the apparatus comprising:

• a column or vessel containing an adsorbent comprising a zirconium oxide, zirconium hydroxide, zirconium alkoxide, zirconium halide and/or zirconium oxide halide;
• a source of a solution of a strong base, the source of strong base solution being arranged in fluid communication at an inlet of the column or vessel containing the adsorbent;
• a column or vessel containing an anion exchange material on which Mo-99 can be quantitatively adsorbed and arranged in downstream fluid communication with the column or vessel containing the adsorbent;
• a source of a solution of an acid, the source of acid solution being arranged in fluid communication at an inlet of the column or vessel containing the anion exchange material;
• and
• a column or vessel containing MnO2 material and arranged in downstream fluid communication with the column or vessel containing the anion exchange material;
• a source of a solution of sulfuric acid containing thiocyanide ions and a reducing agent, the source of sulfuric acid solution containing thiocyanide ions and a reducing agent being arranged in fluid communication at an inlet of the column or vessel containing the MnO2 material;
• and a column or vessel containing an ion exchange material comprising iminodiacetate groups and arranged in downstream fluid communication with the column or vessel containing the MnO2 material.