ML20133P701

Submits Comments on Mallinckrodt Chemical Works Application for SNM License

ML20133P701
Person / Time
Site:	07000036
Issue date:	07/04/1956
From:	Beck C US ATOMIC ENERGY COMMISSION (AEC)
To:	Johnson L US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20133G976	List: ML20133G999 ML20133H026 ML20133H053 ML20133H071 ML20133H111 ML20133H128 ML20133H160 ML20133H168 ML20133H186 ML20133H229 ML20133H299 ML20133H318 ML20133H326 ML20133H329 ML20133H342 ML20133H366 ML20133H375 ML20133H381 ML20133H398 ML20133H401 ML20133H417 ML20133H439 ML20133H445 ML20133H452 ML20133H455 ML20133H469 ML20133H475 ML20133H480 ML20133H501 ML20133H519 ML20133H532 ML20133H537 ML20133H564 ML20133H600 ML20133H624 ML20133H639 ML20133H646 ML20133H688 ML20133H705 ML20133H765 ML20133H774 ML20133H797 ML20133H805 ML20133H823 ML20133H828 ML20133H830 ML20133H832 ML20133H847 ML20133H858 ML20133H859 ... further results
References
FOIA-96-343 NUDOCS 9701270064
Download: ML20133P701 (2)

Text

"c 5 L-

~.ema ?.

fMT G:.:2:9

• ~""*"A" l

Of] ice Memorandum. unruo srsrns

.,. -:: m : lnDATE! ' Cl.l '3 ' ;359 l

Lyall Johnson, Chief, Licensing Branch

'~

1 i

Division of Civilian Application To 7

Clifford K. Beck, Acting Deputy Director j[7 0

Reactor Hazards Evaluation Staff, DCA PaoM ICENSE COMMENTS ON MALLINCKRODT CED4ICAL WORKS

SUBJECT:

SYMBOL:CA:RHES:CKB Comments on Material Presented in Apperdhr I_

the

1. After hydrolysis of the UF6 in a 5" diameter x 4' cylinder, 1

d batches subsequent processing vill be done "in 'always safe' sizeHov of 0 7 pounds of uranium."

pound quantities?

2. Ite hood in which hydrolysis is carried out is " curbed for dep hold of 4" and the curbed area vill have sufficient capacity toFor top enric j

the entire contents of the hydrolysis system."Is it made safe by batch ment this is not geometrically safe.

control? If so, how?

3. A 4" deep x 12" diameter filter is very close to a geomet Is some limits on batchcc can be made critical at top enrichment.

planned here? If so, what?

4. " Moist filter cakes vill be removed from the f f

containing 0 7 pounds..."

Comments on Appendix r

e k h

cipitate A

l Proposed discharge of*hydrolyzed material, and of t e pre slurry,. into "always safe" gecanetry slab tanks 4" x 4' x C'

questionable procedure.

l

s. highly enriched materia.

than

.m

~ Bowever,15 the case in which s s' ingle batch containing not mor

.m E

l Y,y ::..

v.'.

v

%L,d'4ajaiindiesbe'that concentrationsinece

, t, "'.

i d pth would not be 3

' hy$ oven'1ry massniform*:aistiibutteeQl1@ teak,of.th s e

$Qfy als ;a?one: shot" procedure P

uq g J, ;1 w w $ ess' sis g o,1 % m A(.,,,t...f %

'g,? w[g,h "",,sibley therei%> rem;1sn%isihasis;tha e

. I.s 7

~ ted..'"

NE.

$#ifa 4s[Je s

fff.

f k'

Af {,ff!

t

'h.'

iQN

,,,4 c g..< e,.,

./

a CLASSIFICATION CAJECELLED

~

. M p.

et ", ' ' @ 70 gh4pWp,y.y,,3 e.

i.defingd y['merseted Ilda, W.

2.

" "" gGf igg

@eb

. 4, M,

M

.yp_

{& k'h". 8

'N**

6D.... kh b$ hk u. $"LrL% $ Q g,, tts m p f;. h 7._ 7'0 e '

^w wv?

~

'f s

9701270064 970114 pig E,

PDH FOIA

= ^ ^ -

FLOYD96-343 PDR

~ r ; f;.

3 lyall Johnson 2

f,: 6 n y: ~ u- 'e tyg

~,, ! X O O t t aid ii s General Comments:

1. There seems to be some misunderstanding of the term "always safe",

and where the concept it implies may be safely invoked. Where cer-tain supervision, bookkeeping, procedural controls or other limi-tations are necessary to insure safety at any point, "always safe" has'no meaning.

2. In these processes, where safety dependence is placed on control of batch size, the system of checks and balances intended to insure the necessary care should be further described.

Attachments:

Mallinckrodt Chemical Works Applications of Mayj5 and June 18, 1956, for SM4 License 4

5 lESh... -

'8

(' ' ' ' ~- T *, !4 tre: n *:31 N D d iM3 J 3 i

_,; yy g gy9 9 i

3R U'L*.it. T'st8 ft:1 s

_t

..),

~

~

1., f g ?

.