Process of removing polluants from exhaust gases
CA 1284802 C · Owner: Arras, Karlheinz · Inventors: Arras, Karlheinz; Graf, Rolf; Kuhle, Karlheinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For a removal of polluants from the exhaust gases from burning processes carried out in the processing of stones and earths, a dry process is proposed in which the exhaust gases are contacted at a temperature from 50 to 100° C with a particulate solid sorbent in a solidscirculating system. The system consists of a fluidized bed absorber, a solids separator and a recycling line and, the product of the reaction of the sorbent with the polluants is supplied to a cement-making process.
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 11, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2008.
- 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.