Process Development for Permanganate Addition During Oxidative Leaching of Hanford Tanks Sludges

Rapko, Brian M. ; Lumetta, Gregg J. ; Deschane, Jaquetta R. ; Peterson, Reid A. ; Blanchard, David L.

关键词: AR FACILITIES;    CHROMIUM;    DISSOLUTION;    LEACHING;    OXIDATION;    PERMANGANATES;    SLUDGES;    STORAGE FACILITIES;    HANFORD RESERVATION;    SODIUM COMPOUNDS;    RADIOACTIVE WASTE PROCESSING;   

DOI  :  10.2172/919716
RP-ID  :  PNNL-16794
PID  :  OSTI ID: 919716
Others  :  Other: 830403000
Others  :  TRN: US0807374

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

Previous Bechtel National, Incorporated (BNI)-sponsored studies have targeted optimizing sodium permanganate for the selective oxidation of chromium from washed Hanford tank sludges (Rapko et al. 2004; Rapko et al. 2005). The recommendation from previous work was that contact with sodium permanganate in a minimally caustic solution, i.e., 0.1 to 0.25 M [OH-] initially, provided maximum Cr dissolution while minimizing concomitant Pu dissolution. At the request of BNI, further work on oxidative alkaline leaching was performed.