Process for desulphurising hot metal
CA 1239022 A · Owner: Thyssen Stahl Ag · Inventors: Peters, Karl-Heinz; Meichsner, Walter; Hammer, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a process for desulphurising hot metal in a ladle, in particular in a torpedo ladle wherein first aluminum, and then, by means of a carrier gas lime (CaO) are blown into the hot metal. The characterising feature of the invention is that at a rate of 2 - 20 liters (S.T.P.) of carrier gas/kg of desulphurising agent a solid which, evolves a gas in the hot metal is blown in together with the lime.
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 July 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 12, 2005.
- 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.