Hydrogen generation in SRAT with nitric acid and late washing flowsheets
Recently, SRTC recommended two process changes: (1) a final wash of the tetraphenylborate precipitate feed slurry and (2) the use of nitric acid to neutralize the sludge in the SRAT. The first change produced an aqueous hydrolysis product (PHA) with higher formic acid/formate and copper concentration, and reduced the nitrate content in the PHA by an order of magnitude. The second change is to substitute part of formic acid added to the SRAT with nitric acid, and therefore may reduce the hydrogen generated in the SRAT as well as provide nitrate as an oxidant to balance the redox state of the melter feed. The purpose of this report is to determine the pertinent variables that could affect the hydrogen generation rate with these process changes.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 10129008
- Report Number(s):
- WSRC-RP-92-1213; ON: DE93007455
- Resource Relation:
- Other Information: PBD: 26 Oct 1992
- Country of Publication:
- United States
- Language:
- English
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Hydrogen generation in SRAT with nitric acid and late washing flowsheets
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Related Subjects
HYDROGEN
PRODUCTION
SLUDGES
MERCURY
SAVANNAH RIVER PLANT
RADIOACTIVE WASTE PROCESSING
NITRIC ACID
SLURRIES
PH VALUE
HYDROLYSIS
GAS CHROMATOGRAPHY
EVAPORATION
RADIOACTIVE WASTES
RADIOACTIVE WASTE FACILITIES
WASTE PROCESSING PLANTS
052001
WASTE PROCESSING