Method for the preparation of sulphur hexafluoride of high purity, and apparatus for carrying out same
CA 1099894 A · Owner: Montedison S.P.A. · Inventors: De Manuele, Mario; Tommasi, Giulio; Di Gioacchino, Alberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process and apparatus are disclosed for the preparation of sulphur hexafluoride of high purity starting from elemental, fluorine and sulphur both in gaseous phase, and operating with an excess of fluorine, characterized in that the fluorine is fed into a reaction chamber through inlets in a metal plate maintained at, between 30° and 70°C, while the sulphur is fed in through the nozzle of a burner, by regulating a current of an inert gas which is saturated with sulphur by passing same through a zone containing molten sulphur at a temperature between 250° and 500°C and subse-, quently superheating the inert gas thus saturated with sulphur to a temperature between 300° and 550°C, 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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.