Process for single-step coal liquefaction
CA 1300063 C · Owner: Eniricerche S.P.A. · Inventors: Girardi, Ermanno; Delbianco, Alberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
CASE 2732, "PROCESS FOR SINGLE-STEP COAL LIQUEFACTION" Abstract, A process for the single-step coal liquefaction is disclosed, which comprises reacting the same coal in an aqueous suspension with carbon monoxide in the presence of a CO-conversion catalyst selected from an alkaline hydroxide or carbonate, characterized in that the reaction is caused to take place at a temperature firstly maintained for a time of up to 20 minutes equal to a value selected within the range of from 300 to 370 C then is increased over a time comprised within the range of from 20 to 40 minutes, until a temperature value is reached, which is comprised within the range of from 420 to 450°C, at which value it is …
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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 May 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 2009.
- 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.