Gaseous Diffusion Fuel Reprocessing Pgm

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A s a recycle compressor f o r t h e v o l a t i l i t y process, t h e major advantage of t h e diaphragm cornpressor i s t h a t t h e gas d e l i v e r e d w i l l be f r e e from l u b r i c a n t s , s i n c e only t h e metal diaphragm i s contacted on t h e pumping side. There i s no seal d i l u e n t necessary. Secondly, t h e remote head f e a t u r e , which aliows t h e process gas pumping k t , d t o be placed behind a p r o t e c t i v e b a r r i c a d e , o f f e r s a unique s k i e l d i n g f e a t u r e f o r t h e handlii,g of corrosive and r a d i o a c t i v - gases, making it p o s s i b l e f o r .

About one-eighth t o one- The explosive cc,istituent i s thought t o have been a n i n t e r s t i t i a l carbon-fluorine compound. Three a d d i t i o n a l t e s t s with t h e heat tranztfer cement were perfoimed. TI t h e o x i g i n a l t e s t . It is qjparen'i from t h e s e I experjrnents t h a t , j~ some cases, explosive r:ompoiir~ds may be formed -i7ber 54 . r e a c t i n g t h e h e a t t r a n s f e r cement with l i q u i d bromine pentaf l u o r i d e . It i s reasonable t o assume t h a t comparable r e a c t i o n s could m m r Setwecn bromine p e n t a f l u o r i d e and m a t e r i a l s similar t o t h e cement t e s t e d .

The l i f e of t h e diaphragm v a r i e s with t h e o p e r a t i o n a l speed of t h e compressor, and t h e manufacturer recommenes t h a t , as a r o u t i n e m a i n tenance procedure, a l l diaphragms be changed a f t e r about 1,000 hours of operation. Although t h e t e s t machine was o p e r a t e d for a l m o s t 1,400 hours and no mechanical f a i l u r e of any kind. was experienced with t h e compressor u n i t i t s e l f , it i s f e l t t h a t t h e diaphragm replacement would be t h e major periodic maintenance operation.

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