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Method of removing nitrogen oxides from a gas as a salt of imidodisulfonic acid

Patent ·
OSTI ID:6886474
; ; ;
A method of removing nitrogen oxides from a gas containing nitrogen oxides and converting same to a salt of imidodisulfonic acid, wherein the gas containing nitrogen oxides is brought into contact with an aqueous solution which contains at least one ferrous salt and at least one sulfurous acid alkali salt to absorb the nitrogen oxides in solution in the form of imidodisulfonic acid alkali salts.
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha
Patent Number(s):
US 4055623
OSTI ID:
6886474
Country of Publication:
United States
Language:
English

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
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& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL REACTIONS
DENITRIFICATION
FLUE GAS
GASEOUS WASTES
INDUSTRIAL PLANTS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
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REMOVAL
SALTS
WASTES