Method of removing mercury from incinerator exhaust gas
CA 1294760 C · Owner: Yamagishi, Miki · Inventors: Yamagishi, Miki; Miyachi, Tsuneharu; Higuchi, Nariyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of removing mercury from an incinerator exhaust gas, the exhaust gas is washed with a wash liquid containing a solution of caustic soda and a solution of hypochlorite and having an adjusted pH in a range from 6 to 9 thereby removing the total mercury in the exhaust gas with high efficiency and preventing the generation of chlorine gas from the wash liquid.
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 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.