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- W61995329 abstract "During this quarter, process development activities were concentrated on methods for recycling the salt and alloy reagents used by PuRR. Promising techniques were identified for further investigation, development and refinement. Processes for the recycling of salts, in particular, were also shown to be of potential benefit in reducing waste streams in the current plutonium metal production cycle. At Argonne National Laboratory (ANL), the first attempt at reduction of ash heels was made. The recovery of plutonium from this most intractable of residues was gratifyingly high. Magnesium was used for reduction of ash heel into a zinc alloy, and calcium was used for reduction into a copper-magnesium alloy. For the zinc-magnesium run 99.9% reduction was achieved in two reduction stages. For the copper-magnesium-calcium run, 99.8% reduction was obtained in a single stage. The reduction alloy from the copper-magnesium-calcium system was subjected to salt extraction by reaction with CdCl/sub 2/. Only 96.5% of the reduced plutonium was extracted. Quantitative extraction was expected; the cause for the incomplete extraction will be investigated. A similar salt extraction will be performed with the reduction ingot from the zinc-magnesium system. At Lawrence Livermore National Laboratory (LLNL), further progress was made toward readying the gloveboxes in themore » Plutonium Facility for use. Preliminary steps were taken to prepare ash-heel residues for experiments to attempt gross mechanical separation as a head-end stage for PuRR. 3 refs., 3 figs.« less" @default.
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- W61995329 date "1988-12-12" @default.
- W61995329 modified "2023-09-27" @default.
- W61995329 title "Plutonium Residue Recovery (PuRR) Project: Quarterly progress report, July-September 1988" @default.
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