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Process of regenerating spent HF-HNO sub 3 pickle acid containing (ZrF sub 6 )-2

Patent ·
OSTI ID:5434652

This patent describes a process for regenerating spent HF-HNO{sub 3} pickle acid containing (ZrF{sub 6}){sup {minus}2}. It comprises NaNO{sub 3} to a spent HF-HNO{sub 3} pickle acid containing (ZrF{sub 6}){sup {minus}2} to precipitate Na{sub 2}ZrF{sub 6}; and separating the HF-HNO{sub 3} pickle acid from the Na{sub 2}ZrF{sub 6} precipitate.

Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
Patent Number(s):
US 5082523; A
Application Number:
PPN: US 7-615675
OSTI ID:
5434652
Country of Publication:
United States
Language:
English

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Related Subjects

050800* -- Nuclear Fuels-- Spent Fuels Reprocessing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ENERGY SOURCES
FLUORIDES
FLUORINE COMPOUNDS
FUELS
HALIDES
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
NITRATES
NITROGEN COMPOUNDS
NUCLEAR FUELS
OXYGEN COMPOUNDS
PICKLING
PRECIPITATION
REACTOR MATERIALS
REGENERATION
SEPARATION PROCESSES
SPENT FUELS
SURFACE TREATMENTS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM FLUORIDES