Process and apparatus for exothermic reactions
CA 2046304 C · Owner: Stahl, Henrik O. · Inventors: Stahl, Henrik O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cooled reactor for exothermic catalytic conversion of gaseous materials, e.g. for the oxo synthesis, for the conversion of hydrogen and nitrogen to from ammonia and for the reaction of carbon oxides with hydrogen to form methanol, comprises a cylindrical pressure shell, distributor means for synthesis gas at, least one tube sheet and one or more catalyst beds provided with cooling tubes for the indirect cooling of reacting gas. Each cooling tube consists of an outer tube provided with a heat exchanging outer wall; this outer tube surrounds and is coaxial with an inner tube and hence defines an annular space the inner wall of which is provided with perforations to direct the stream of …
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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
- Filed February 12, 1990 and granted November 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2012.
- 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
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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.