ML21145A400: Difference between revisions
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{{#Wiki_filter:}} | {{#Wiki_filter:From: | ||
Giacinto, Joseph Sent: | |||
Tuesday, May 25, 2021 2:09 PM To: | |||
AdvancedReactors-GEISDocsPEm Resource | |||
==Subject:== | |||
NRC - Uranium Conversion Attachments: | |||
NRC 2020 U Conv.pdf | |||
Uranium Conversion l NRC.gov https://www.nrc.gov/materials/fuel-cycle-fac/ur-conversion.html[1/26/2021 11:56:15 AM] | |||
Home Nuclear Materials Fuel Cycle Facilities Uranium Conversion After the uranium ore concentrate is produced at the mill (where it becomes uranium oxide or "yellow cake"), it is packaged in 55 gallon drums and sent to the uranium conversion plant. At the conversion facility, the yellow cake is SURFHVVHGDQGLVWKHQUHDFWHGZLWKXRULQHWRFUHDWHXUDQLXPKH[DXRULGH 8) ). Uranium, in the chemical form of UF, is suitable for use in enrichment operations and is the desired product. The UF exits the process as a gas ZKLFKLVWKHQFRROHGWRDOLTXLGDQGGUDLQHGLQWRWRQRUDJHDQGWUDQVSRUWF\\OLQGHUV$VWKH8) cools over the FRXUVHRI¿YHGD\\VLWWUDQVLWLRQVIURPDOLTXLGWRDVROLG7KHF\\OLQGHUZLWK8) in the solid form, can then be shipped to an enrichment plant. | |||
As with mining and milling, the primary risks associated with conversion are more chemical than radiological. The process to convert uranium ore concentrate (uranium oxide) powder to UF involves a number of volatile and VROXEOHFKHPLFDOVLQFOXGLQJXRULQHK\\GURXRULFDFLGDQGXUDQ\\OXRULGH7KHVHFKHPLFDOIRUPVFRQWULEXWHWRULVNV associated with inhalation if a release occurred. In addition, the conversion process uses hydrogen gas (a gas that LVDPPDEOHDQGFRXOGFUHDWHDQH[SORVLRQKD]DUG 1XFOHDUFULWLFDOLW\\LVQRWDKD]DUGDWWKHVHIDFLOLWLHVEHFDXVHWKH QXFOHDUPDWHULDOFRQVLVRInatural uranium throughout the process. Therefore, criticality is not possible. | |||
There is one commercial uranium conversion plant in the United States. The plant is Honeywell International Inc. | |||
DQGLWLVORFDWHGLQ0HWURSROLV,OOLQRLV7KLVSODQWLVFXUUHQWO\\LQLGOHUHDG\\DWXV | |||
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3DJH/D5HYLHZHG8SGDWHG:HGQHVGD\\'HFHPEHU | |||
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Latest revision as of 08:46, 29 November 2024
| ML21145A400 | |
| Person / Time | |
|---|---|
| Issue date: | 05/25/2021 |
| From: | NRC |
| To: | NRC/NMSS/DREFS |
| References | |
| Download: ML21145A400 (2) | |
Text
From:
Giacinto, Joseph Sent:
Tuesday, May 25, 2021 2:09 PM To:
AdvancedReactors-GEISDocsPEm Resource
Subject:
NRC - Uranium Conversion Attachments:
NRC 2020 U Conv.pdf
Uranium Conversion l NRC.gov https://www.nrc.gov/materials/fuel-cycle-fac/ur-conversion.html[1/26/2021 11:56:15 AM]
Home Nuclear Materials Fuel Cycle Facilities Uranium Conversion After the uranium ore concentrate is produced at the mill (where it becomes uranium oxide or "yellow cake"), it is packaged in 55 gallon drums and sent to the uranium conversion plant. At the conversion facility, the yellow cake is SURFHVVHGDQGLVWKHQUHDFWHGZLWKXRULQHWRFUHDWHXUDQLXPKH[DXRULGH 8) ). Uranium, in the chemical form of UF, is suitable for use in enrichment operations and is the desired product. The UF exits the process as a gas ZKLFKLVWKHQFRROHGWRDOLTXLGDQGGUDLQHGLQWRWRQRUDJHDQGWUDQVSRUWF\\OLQGHUV$VWKH8) cools over the FRXUVHRI¿YHGD\\VLWWUDQVLWLRQVIURPDOLTXLGWRDVROLG7KHF\\OLQGHUZLWK8) in the solid form, can then be shipped to an enrichment plant.
As with mining and milling, the primary risks associated with conversion are more chemical than radiological. The process to convert uranium ore concentrate (uranium oxide) powder to UF involves a number of volatile and VROXEOHFKHPLFDOVLQFOXGLQJXRULQHK\\GURXRULFDFLGDQGXUDQ\\OXRULGH7KHVHFKHPLFDOIRUPVFRQWULEXWHWRULVNV associated with inhalation if a release occurred. In addition, the conversion process uses hydrogen gas (a gas that LVDPPDEOHDQGFRXOGFUHDWHDQH[SORVLRQKD]DUG 1XFOHDUFULWLFDOLW\\LVQRWDKD]DUGDWWKHVHIDFLOLWLHVEHFDXVHWKH QXFOHDUPDWHULDOFRQVLVRInatural uranium throughout the process. Therefore, criticality is not possible.
There is one commercial uranium conversion plant in the United States. The plant is Honeywell International Inc.
DQGLWLVORFDWHGLQ0HWURSROLV,OOLQRLV7KLVSODQWLVFXUUHQWO\\LQLGOHUHDG\\DWXV
6 6
6 6
6 6
3DJH/D5HYLHZHG8SGDWHG:HGQHVGD\\'HFHPEHU
SECTION NAVIGATION +
Choose a Section
REPORT A SAFETY CONCERN Search