Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1977-08-22
1978-10-03
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423393, 423400, B01D 5334
Patent
active
041184602
ABSTRACT:
Nitric oxide may be removed from gases with which it is admixed by contacting the gases with aqueous solutions containing nitrate ions in sufficient concentration to oxidize the nitric oxide to nitrous acid and to retain it in the solution under stable conditions. Other oxides of nitrogen can also be absorbed producing nitrous acid which is retained in the aqueous solution in a similar manner. Thereafter, the scrubbing solution is regenerated under controlled conditions, producing a gas stream which contains the recovered nitrogen oxides in relatively high concentration and a scrubbing solution which can be recycled. The recovered nitrogen oxides may be used in the manufacture of nitric acid or other compounds or decomposed into harmless gases.
REFERENCES:
patent: 2098953 (1937-11-01), Christensen
patent: 2673141 (1954-03-01), Barman
patent: 3565575 (1971-02-01), Warshaw
patent: 3714333 (1973-01-01), Ohrui et al.
patent: 3927183 (1975-12-01), Oushibw
patent: 4053555 (1977-10-01), Bolme
Mellor, "A Comprehensive Treatise on Inorganic & Theoretical Chemistry," Longmans, Green & Co., N.Y., N.Y., vol. VIII, 1928, pp. 455-457.
LandOfFree
Removal of nitrogen oxides from industrial gases by use of oxidi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removal of nitrogen oxides from industrial gases by use of oxidi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of nitrogen oxides from industrial gases by use of oxidi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1801929