Process for moving highly viscous residues deriving from oil processing
CA 2321240 A1 · Owner: Enitecnologie S.P.A. · Inventors: Borgarello, Enrico; Marcotullio, Armando
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for recovering and moving refinery tar by the formation of oil in water dispersions of the above tar the, above dispersions having a water content of at least 20% by weight, and the dispersing agent being selected from salts of alkaline metals and ammonium, and relative mixtures of, the condensates of naphthalenesulfonic acid with formaldehyde which comprises:, a) fluidification of the tar by heating to a temperature at least equal to its softening point;, b) mixing the tar thus fluidified with the desired quantity of water and dispersing agent until an oil in water dispersion is formed;, c) recovery and moving of the tar in the form of the oil in water dispersion formed in step …
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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 September 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2022.
- 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.