Process and apparatus for producing hydrogen cyanide
CA 1213123 A · Owner: Degussa Aktiengesellschaft · Inventors: Manner, Reinhard; Voigt, Carl; Pfeifer, Wolf D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An increase in the throughput in the BMA-furnace or a BMA furnace chamber, respectively, without modification of the existing design and dimensions is achieved by converting the lower stage of the cooling head to a short-tube bundle-type heat exchanger whilst retaining the temperature profile needed for the process by the denser or less dense arrangement of the ceramic tubes in the furnace chamber and/or by using ceramic tubes having different inner and outer geometry and/or structure.
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 October 28, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 2003.
- 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.