Process for the production of pig iron
CA 1286114 C · Owner: Papst, Gero · Inventors: Papst, Gero; Hauk, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the production of pig iron from fine ore is described, in which initially the fine ore undergoes prereduction to a degree of metallization of preferably 65 to 75 %. The sponge iron obtained is then melted down and under goes a final reduction. This process takes place in a melting cyclone , to which the sponge iron is supplied by means of a central opening and into which are tangetially blown via a lateral opening a carbon carrier, an oxygen-containing gas and optionally fluxes. As a result of the angular momentum produced the sponge, iron particles are deflected to the side and melted and finally reduced by the combustion gases of the carbon carrier. The molten iron collects …
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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 July 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 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.