ML20133K536
| ML20133K536 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 02/20/1958 |
| From: | Leaders W MALLINCKRODT, INC. |
| To: | Johnson L US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20133G976 | List:
|
| References | |
| FOIA-96-343 NUDOCS 9701210260 | |
| Download: ML20133K536 (3) | |
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MALLINCKRODT CHEMICALWORK'I a
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M ANUF ACTURERS OF FINE CHEMICALS FOR MEDICINAL, PHOTOGRAPHIC
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ANALYTICAL ANO INDUSTRIAL PURPOSES oss^eag ae* voma j
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d'On. ST. LOUIS,7. MO.
l 20 February 1958 l
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I ter. IJsli Jahasam g(.//[4f" h Licensing Division j.
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S. Atomic Energy Comunission
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SUBJECT:
Special Nuclear Materials License No. S101-33 i
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Dear Mr,
Johnsen:
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this comemmication is a request fer expansion of our Special Nuclear Materials
.l License No. SNM-33 to inclado a U0a pe11 sting facility which is described below, j
the basic operations in the manufacture of pellets that we are proposing essentially fonaw the posedures develope 1 at Bettia Field, theas steps include j
(1) addition of a binder and 1thriaant'to the pouder, (2) granalation,. (3) M i
(la) preesing, (5) firing, (6) griaMar, and (7) inspection. It is our proposal j
to almays operate on a batch basis using ' limited asfe* batch sizes depending upon
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s Step is the blooding af the binder est.1thrismat will be soecaplished with a slow t
speed mixing davios to ministem deat.genesstion, the Lentire'adaurr will i
be enclosed in a dust tidt hood; No more than a #1imited safe
- batch fe a given asasy win ever be used as the hatch sine in the MWia-opesution.
l Step 2: The material will then be graue3ated using equignment especia137 designed l
for this purpose and the gesnu3es. syssedient in a' thin imper imidrying tasys, these opersticas will1belenrried4est in anfespostily designed.,
hood to seduos the movement of asterial to a almim The tray' landing
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l will be accomplished within a'dast senteel. box.,
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Step 3: Drying evens win farm an'intrialsdi:part at the wa111af thMtrur;1anding
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dry banc so that tasys can be 'disestayjotroduced into the cosas. JNo more than'a alimited' ante' batah wi111be permitted:in7anrioien'at one 4
tim *.
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....e Step 14: Following drying,. the tasys will belr,enewed fres'the' ovens s
into especially designed scatainers througk a bot, tan'
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bem:. No acre than a ' limited' safe' batd win be placed e
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/ly 9701210260 970114 PDR FOIA FLOYD96-343 PDR
Mr. Lyan Johnson Phge Two 20 February 1958 Step 5: Thene containern will be emptied directly into the feed neohanism of the pe11 sting press, The entire press win be enclosed in a plastic-l metal dust tight hood.
Stop 6: The pellets so generated will be placed on trays and aboked into a multi-scos furnace for dewavinr and sintering, the trays win have i
dimanaions of h"x6"x1" and win be stoked through the furnace as a j
single layer.
l Step 7: De penots win be unloaded from the trayn and proceed. In one af two nannara.
If grinding 1a required, they win bs phced in suitabla containers and trannferred to the grinding station. If grindlag is 1
i not required, as un anticipate vin be the candition in a majority of cases, pellots win be placed in suitable containers arvi tansferred to an inspection tab 1c for acetaate dirensional checks.
Step 8: Pellets which must bo ground will also proceed through the inspection j
table prior to final packing, f
Step 9: It is anticipated that in some cases wo nay be requested to load penets into fuel pins. When this is to be accomplished, individual fuel pina will be loadad imediately following penet inspection, the fusi pins j
sealed in the appropriate sanner, and shipped in an approved manner to the eventual user. In those cases where we are to deliver pellets to a 4
fuel elamant fabricator, penats win be packaged in approved shipping l
containers with no more than a " limited safe" batch in each container, placed in birdcages and shipped by appim4 methods.
4 he entiro pelleting installation win be designed with dust control as the para-mount ccessideration from a safety standpoint. Since " limited safe" batch size win never be exceeded at any step of the operation, nuclear safety is insurede 1
Special attention win be directed toward the choice of equipment and proceduros which will minimize the amount of dust generated and an operations which are potentiany dusty will be -nclocod in hoods to localize the centamination, a
i It is contemplated at the beginning to instan a single pellet production line i
which win be capable of hand 11ag any assay of penet which may be requind.
j The powder preparation equipment, pelist press, furnaces and an hoods are so designed that it win be quite simple to clean and change fron assay to assay, Operating procedures are such that it win be a miatively simple matter to con-trol inventory flow and be assured that even on high assays no more than a single
" limited safe" batch win be contained in any step tar the process.
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.a Nr. Itall Johnson Page % ree 20 February 1958 Since we have been requoated to begin midng samp1m batches of pollets at en early dato, we are roquosting your inradiato attentian to this applicaticri so that our servico to the nuelcar poecr industry my bo so evr=wlad, Sinceroly yours, T.ALLHICKRCDT CIIEMICAL WQtKS U. M. Inacars Technical Dirceter Specisi !!otals Division WMLtdj City of St. Louis 88 State of Missouri Subscribed and storn to before ma this c>lfd3! day of 1958 c[ O liotary Public My Commission Expires Dec. 7,1960
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