Process for the removal of oxides of nitrogen and the aqueous solution used

Technical Report · Thu Oct 01 00:00:00 EDT 1981

OSTI ID:6525556

A technique for removing the oxides of nitrogen from off-gases by a gas-liquid contact process is described. The off-gas is brought into contact with an aqueous solution containing an ion or compound with a reductive action on the oxides of nitrogen. The solution used contains water and (1) at least one hydrazine compound (selected from the group: hydrazine, hydrazine hydrate and salts of inorganic acids of hydrazine (2) a bivalent or trivalent iron ion and (3) an organic compound suitable for forming a chelate compound with the iron ion or an alkali metal salt of the organic compound.

• Research Organization: British Library, Boston Spa. Lending Div.
• OSTI ID: 6525556
• Report Number(s): BLL-WH-489-(9091.9F)
• Resource Relation: Other Information: Transl. into ENGLISH of Japanese Patent with the German Patent no. 26-58-548
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
EXHAUST GASES
AIR POLLUTION CONTROL
NITROGEN OXIDES
REDUCTION
AQUEOUS SOLUTIONS
HYDRAZINE
INTERACTIONS
IRON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
DISPERSIONS
FLUIDS
GASEOUS WASTES
GASES
MIXTURES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
WASTES
400105* - Separation Procedures
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)