Tank C6A solids

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Description

The Separations Technology Laboratory was requested to characterize solids, removed as a slurry, from cleanout of Tank C6A last month. For some time, solids had been appearing in samples taken from this tank. The analytical evidence from this study shows the solids, although principally plutonium and aluminum, to be a complex mixture, stoichiometrically. The solids have likely been forming over the past few years due to conditions leading to insolubility, primarily of aluminum nitrate, in Tank C6A. This mode of formation is probably responsible for the larger particles. Since aluminum nitrate crystals can be highly hydrated, small quantities of plutonium ... continued below

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13 p.

Creation Information

Holcomb, H.P. March 9, 1988.

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Description

The Separations Technology Laboratory was requested to characterize solids, removed as a slurry, from cleanout of Tank C6A last month. For some time, solids had been appearing in samples taken from this tank. The analytical evidence from this study shows the solids, although principally plutonium and aluminum, to be a complex mixture, stoichiometrically. The solids have likely been forming over the past few years due to conditions leading to insolubility, primarily of aluminum nitrate, in Tank C6A. This mode of formation is probably responsible for the larger particles. Since aluminum nitrate crystals can be highly hydrated, small quantities of plutonium could have been carried along from the 150--200 g Pu/L mother liquor. The smaller particles could have formed in the same manner, but since they contain more plutonium than the larger ones, they could have originated in upstream processing from C6A and have been fine enough to either bypass filtration or be passed along during line breaks to change filters or for other maintenance. Routinely scheduled inspection and/or cleanout is recommended to prevent further buildup of solids in such process vessels.

Physical Description

13 p.

Notes

OSTI as DE98006512

Source

  • Other Information: PBD: 9 Mar 1988

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  • Other: DE98006512
  • Report No.: DPSPU--88-272-24
  • Grant Number: AC09-76SR00001
  • DOI: 10.2172/665917 | External Link
  • Office of Scientific & Technical Information Report Number: 665917
  • Archival Resource Key: ark:/67531/metadc704528

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Creation Date

  • March 9, 1988

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 29, 2016, 3:30 p.m.

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Holcomb, H.P. Tank C6A solids, report, March 9, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc704528/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.