The Fission-Based  ⁹⁹Mo Production Process ROMOL-99 and Its Application to PINSTECH Islamabad

Table 2

Optimal parameters for the alumina column process.

Al2O3 column	About 50 mm × 145 mm, bottom G 3 frit
Al2O3 weak acid material	250 g, size ~60 𝜇m, density 1.25 mL/g, porosity 0.875
Loading process:	FEED volume ~5.8 L, 0.15 < [H^+] < 0.7 M, ~120 min
(1) Wash process	1000 mL 0.5 M HNO3, time about 15 min
(2) Wash process	500 mL water, time about 7 min
(3) Wash process	1000 mL 0.01 M NH3, time about 15 min
Liquid waste volume:	8300 mL
Elution	1000 mL 1-2 M NH3, time about 30 min
Alumina column process:	Total time about 3 h.