Document Details

706-D Modification Project
Subject Terms:
Building 706-D; Design; RaLa
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\Fission Products
Document Type:
Publication Date:
1951 Jun 15
Declassification Date:
1971 Aug 31
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
Originating Research Org.:
Oak Ridge National Laboratory
OpenNet Entry Date:
1995 Mar 10
The project covered the development of a process and the development, design, and installation of equipment to improve the yield and the quality of the 706-D RaLa plant. The project included the adidtion of a dissolver solution clarifying filter and a process filter to replace the former separation by decantation, the installation of duplicate ion-exchange purification equipment housed in floor pits, and the installation of product charging facilities to accommodate the product carrier adopted by Los Alamos. The equipment was tested through a series of cold runs--one 200 Curie run and one full-sacle 15000 Curie run. During the 200 Curie run, 60 Clinton pile slugs were charged April 6, 1951. A back-up from the filter to the blow-down line valve indicated the need for shielding around the valve. The ion-exchange run proceeded satisfactorily until the final nitric acid precipitation state. Apparently the gram Barium content was insufficient to exceed the solubility and the product passed through the filter to the waste. The waste was returned and reprecipitated satisfactorily with 500 miligrams of cold Barium as a carrier. The samplers operated satisfactorily. The mechanical failure of the process valve resulted in a non-standard run from wich no positive conclusions can be drawn. All indications are that the ion-exchange process chemically acocmplishes its purpose. The failure of the last run is attributed solely to equipment failure.

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