Demetallization of asphaltene-containing petroleum hydrocarbons
CA 1046444 A · Owner: Deutsche Texaco Aktiengesellschaft · Inventors: Sochtig, Gunter; Wegner, Hans-Georg; Kruger, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PROCESS FOR THE DEMATALLISATION, OF ASPHALTENE-CONTAINING PETROLEUM HYDROCARBONS, (D#71,200 - DTA-96-F) ABSTRACT, Metals are removed from metal- and asphaltenecontaining petroleum oils by contacting the oil with pellets of sorptive type attapulgus clay which has been extruded and then dried at a temperature between about 100 and 650° C. to a volatile content of less than 20 weight %. -I-
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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 January 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 1996.
- 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.