Apparatus and its use for oxychlorination
CA 2213446 C · Owner: Krumbock, Reinhard · Inventors: Krumbock, Reinhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The preparation of 1,2-dichloroethane from ethylene hydrogen chloride and oxygen or an oxygen-containing gas (oxychlorination) advantageously proceeds in a reactor having a lower delimitation for a catalyst fluid bed a, first gas inlet (distributor tubes) being arranged above the delimitation and within the catalyst fluid bed which, gas inlet contains nozzles distributed over the entire cross section of the reactor, these nozzles opening into tubes which conduct the exiting gas stream essentially in the opposite direction to the gas stream which fluidizes the catalyst, this gas stream being fed through a second gas inlet beneath the delimitation.
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
- Filed May 17, 1995 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2017.
- 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.