Method of producing molten pig iron or steel pre- products from particulate ferrous material
CA 1268633 C · Owner: Kepplinger, Werner · Inventors: Kepplinger, Werner; Hauk, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of producing molten pig iron or steel preproducts from particulate ferrous material as well as of, producing reduction gas in a melt-down gasifier by adding coal and by blowing in oxygen-containing gas by means of nozzle pipes penetrating the wall of the melt-down gasifier, a fixed bed formed of coke particles through which, the oxygen-containing gas flows and a superposed fluidized bed of coke particles are formed, and the ferrous material is charged onto the fluidized bed. Below the fixed bed through which oxygen-containing gas flows a fixed bed of, coke particles not passed through by gas is provided and, the fluidized bed above the fixed bed passed through by …
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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 May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.