Document Details

706-D Modification Project Plant Design
Subject Terms:
Building 706-D; Construction; 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:
1950 Nov 13
Declassification Date:
1971 Sep 01
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
Originating Research Org.:
Oak Ridge National Laboratory
OpenNet Entry Date:
1995 Mar 10
The modification of the 706-D building RaLa facilities was planned in three phases to accommodate the production schedules required by the consumer. The memo discusses changes in the schedule that allow for more time for testing equipment than was originally anticipated. The installation of the crud and process filters is completed, but additional testing and process development is required to resolve filtration difficulties attributed to silicic acid colloids that developed during initial cold test runs. Four complete cold runs have been attempted in the filtration equipment; two runs with Clinton slugs and two with Hanford slugs. Investigation is under way to develop remedial techniques and selection of a better filter aid in the crud filters that will remove the silicic acid colloids and determine the precipitation conditions to prevent further filtration difficulty.

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