Noble metals-compatible melter features development Phase 1 [electronic resource] : Establishing functional and design criteria and design concepts

Published: Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 38 pages : digital, PDF file
Additional Creators: Pacific Northwest Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Premature failures have occurred in melters at Japan`s Tokai Mockup Facility and at the Federal Republic of Germany (FRG) PAMELA plant during processing of feeds with high levels of noble metals. Melter failure was due to the accumulation of an electrically conductive, noble metals-containing precipitates in the glass, that then resulted in short circuiting of the electrodes. A comparison was made of the anticipated Hanford Waste Vitrification Plant (HWVP) feed with the feeds processed in the FRG and Japanese melters. The evaluation showed that comparable levels of noble metals and other potential precipitate-forming components (e.g. Cr/Fe/Ni-spinels) exist in the HWVP feed. As a result, the HWVP project made a decision to modify the present reference melter design to include features to prevent the precipitation and accumulation or otherwise accommodate precipitated phases on a routine basis without loss of production capacity.

Report Numbers

E 1.99:pnnl--11059
E 1.99: hwvp--88-v110303a
hwvp--88-v110303a
pnnl--11059

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Note

Published through SciTech Connect.
03/01/1996.
"pnnl--11059"
" hwvp--88-v110303a"
"DE96008424"
Chapman, C.C.; Elmore, M.R.; Siemens, D.H.

Funding Information

AC06-76RL01830

View MARC record | catkey: 14109537