Separation of $sup 238$Pu from $sup 237$Np by pressurized anion exchange
Pressurized anion exchange with small particle ( ~2OO mesh) Dowex MSA-1 macroporous ion resin gave excellent separation of /sup 238/Pu from /sup 237/Np. Separation was satisfactory with ~9O mesh Dowex 1-X4 gel-type resin at 3 to 4 times the fiow rates normally used in the Savannah River Plant with 40 to 60 mesh Dowex 1 resin. Results wth small-particle Dowex 1-X2 in the pressurized system were not satisfactory because the resin beads deformed due to low structural stabiliiy, with resulting excessive pressure drop and poor separation. Small- particle Dowex 1-X6 was very ineffective because of slow ionic diffusion in the resin matrix. The excellent performance of the macroporous resin is attributed to rapid ionic diffusion resulting from high resin porosity. The pressurized system was Operated safely at temperatures up to 55 deg C and pressures up to 350 psig. (auth)
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-020642
- OSTI ID:
- 4330763
- Report Number(s):
- DP--1331
- Country of Publication:
- United States
- Language:
- English
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