ENGINEERING DEVELOPMENT OF FLUID-BED FLUORIDE VOLATILITY PROCESSES. PART 15. MATERIAL BALANCE DEMONSTRATIONS, PRODUCTION RATES, AND FLUORINE UTILIZATIONS IN FLUORINATION OF KILOGRAM QUANTITIES OF PuF$sub 4$ TO PuF$sub 6$ WITH ELEMENTAL FLUORINE IN A FLUID-BED REACTOR.

A Conceptual Design Study of a Fluoride-Volatility Plant for Reprocessing LMFBR Fuels.

“…Neptunium content is about 186 g. Outer ring: 1. 5 aThese values, representing 22% Pu02-U02 core fuel, were used for all calculations made in this study. This plutonium-to-uranium ratio is higher than the 20% PuOTUOZ ratio specified in the ground rules, but does not affect the overall conclus-i-an-s diawii in this study.…”

“…The 90% approach to equilibrium is thought to be realistic since campaign-type experiments 5 involving fluorination of PuF4 from alumina (without uranium or fission products present) showed that equilibrium was nearly achieved by maintaining the plutonium inventory in the bed above 3 wt %. This is the design value for the upper stage of the plutonium fluorinator.…”

“…The preparation of mixed fuel oxides by direct fluid-bed conversion of the mixed hexafluorides should be studied on an engineering scale since work to date has been on conversion of UF6 to U02 and PuF6 to Pu02 separately. 5.…”