Process and apparatus for preparing binderfree hot briquettes for smelting purposes
CA 1292621 C · Owner: Kaas, Werner · Inventors: Auth, Rudolf; Seidelmann, Lothar; Hoffken, Erich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process and apparatus for preparing binder-free hot briquettes for smelting purposes consisting of iron-containing pyrophoric finely divided solids. Before briquetting, the finely divided solids are blown-through by means of a rising oxidising heated gas flow and held in a fluidized bed. During this process the gas flow is controlled in such a way that the temperature of the finely divided solids is increased to about 450 to 650°C by oxidation of at least part of the metallic iron. Subsequently the solids, are briquetted in a hot condition. Sensible heat is added to the fluidized bed from the outside until oxidation of part of the metallic iron starts, and …
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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 December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 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.