METHOD OF CHEMICAL DECONTAMINATION OF STAINLESS STEEL NUCLEAR FACILITIES
Patent
·
OSTI ID:4832216
A chemical method is given for removing activated corrosion products on the primary system surfaces of a pressurized water reactor. The corrosion product deposits are composed chiefly of magnetite (Fe/sub 3/O/sub 4/) with small amounts of nickel and chromium oxides. The corroded surfaces are first flushed with a caustic permanganate primary solution consisting of sodium hydroxide and potassium permanganate followed by a secondary rinse solution of ammonium citrate and citric acid containing the complexing agent Versene in small amounts. Demineralized water is used to clean out the primary and secondary solutions and a 60-minute drying period precedes the rinse solution. (AEC)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-002957
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 3013909
- OSTI ID:
- 4832216
- Country of Publication:
- United States
- Language:
- English
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