Document Details

SCRUP Run SB-9 Summary
Porter, P H [Carbide and Carbon Chemicals Company, Oak Ridge,TN]; Brooksbank, R E [Carbide and Carbon Chemicals Company, Oak Ridge, TN]
Subject Terms:
Chalk River, SCRUP Plant; contamination, slugs; uranium, plutonium
Steahly, F.L.; Steahly, F.L.
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Specific Material\Uranium; Specific Material\Uranium
Document Type:
Publication Date:
1952 Aug 26
Declassification Date:
1997 Jul 11
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
Originating Research Org.:
Carbide and Carbon Chemicals Corporation
OpenNet Entry Date:
1998 Jun 16
This correspondence contains a SCRUP run SB-9 summary. During run SB-9, the third production batch of Chalk River material was processed through the SCRUP plant. These runs were being made to obtain plutonium from slugs irradiated at 0 to 400, 400 to 600, and greater than 600 megawatt day per ton. The material used in SB-9 was the first batch of 400 to 600 megawatt day/ton material to be processed. The uranium and plutonium losses were 0.28 and 1.4 percent respectively. This relatively high plutonium loss can be attributed to the aqueous entrainment of sodium nitrite and nitric acid from the IIA column into the organic IIAP stream. This condition resulted in an incomplete reduction of plutonium IV to plutonium III in the IIB column. Increasing the IIBX stream concentration four fold failed to bring about complete reduction during the run. Approximately 300 grams of plutonium were separated.

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