Refrigeration – Storage of solidified or liquified gas – Storing solidified gas
Patent
1983-12-21
1985-10-15
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Storing solidified gas
62 555, 55269, 220 85VS, 220 88B, F17C 1300
Patent
active
045466114
ABSTRACT:
The invention is a UF.sub.6 -recovery process of the kind in which a stream of substantially pure gaseous UF.sub.6 is directed through an externally chilled desublimer to convert the UF.sub.6 directly to an annular solid ring adhering to the interior wall of the desublimer. After accumulation of a desired amount of solid UF.sub.6, the desublimer is heated to liquefy the solid. Subsequently, the liquid is recovered from the desublimer. It has been found that during the heating operation the desublimer is subjected to excessive mechanical stresses. In addition, it has been found that the incorporation of a very small percentage of relatively noncondensable, nonreactive gas (e.g., nitrogen) in the UF.sub.6 input to the desublimer effects significant decreases in the stresses generated during the subsequent melting operation. This modification to the process provides valuable advantages in terms of reduced hazard, lower operating costs for the desublimer, and increased service life for the desublimer and its auxiliaries. The new process is especially suitable for the recovery of enriched UF.sub.6 from high-speed UF.sub.6 gas-centrifuge cascades.
REFERENCES:
patent: 3777928 (1973-10-01), Kober
patent: 3781407 (1973-12-01), Kamijo et al.
patent: 3853507 (1974-10-01), Monroe
patent: 3859807 (1975-01-01), Benedict et al.
patent: 3859808 (1975-01-01), Bennedict
Andrews Deborah H.
Eby Robert S.
Hamilton Thomas H.
Stephenson Michael J.
LandOfFree
UF.sub.6 -Recovery process utilizing desublimation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with UF.sub.6 -Recovery process utilizing desublimation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and UF.sub.6 -Recovery process utilizing desublimation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2430837