Furnace System Testing to Support Lower-Temperature Stabilization of High Chloride Plutonium Oxide Items at the Hanford Plutonium Finishing Plant

Schmidt, Andrew J. ; Gerber, Mark A. ; Fischer, Christopher M. ; Elmore, Monte R.

Pacific Northwest National Laboratory (U.S.)

关键词: Corrosion;    Moisture Uptake;    Thermal Stabilization;    Storage;    Doe-Std-30313-2000;   

DOI  :  10.2172/15010201
RP-ID  :  PNNL-14245
RP-ID  :  AC05-76RL01830
RP-ID  :  15010201

美国|英语

来源: UNT Digital Library

【 摘 要 】

High chloride content plutonium (HCP) oxides are impure plutonium oxide scrap which contains NaCl, KCl, MgCl2 and/or CaCl2 salts at potentially high concentrations and must be stabilized at 950 C per the DOE Standard, DOE-STD-3013-2000. The chlorides pose challenges to stabilization because volatile chloride salts and decomposition products can corrode furnace heating elements and downstream ventilation components. Thermal stabilization of HCP items at 750 C (without water washing) is being investigated as an alternative method for meeting the intent of DOE STD 3013-2000. This report presents the results from a series of furnace tests conducted to develop material balance and system operability data for supporting the evaluation of lower-temperature thermal stabilization.