Method of reducing the emission of no _gas from a liquid containing nitric acid
CA 1302050 C · Owner: Eka Nobel Ab · Inventors: Andreasson, Pia; Dalin, Ivan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of reducing, by the addition of hydrogen peroxide, the emission of NOx gas in the treatment of a nitric acid containing liquid is disclosed. In the method the redox potential of the liquid is measured and the amount of added hydrogen peroxide is adjusted in relation to the redox potential.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.