Process for separating a fluid feed mixture containing hydrocarbon oil and a organic solvent
CA 1317891 C · Owner: Bitter, Johan George Albert · Inventors: Haan, Johannes Pieter; Bitter, Johan George Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for separating a fluid feed mixture containing hydrocarbon oil and an organic solvent (e.g. obtained from a furfural extraction unit) by contacting said fluid feed mixture at elevated pressure with one side of a hydrocarbon oil-selective membrane (e.g. containing a layer of a silicone polymer) which is substantially impermeable to said organic solvent and recovering hydrocarbon oil permeate from the other side of the membrane. DOKH04
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 May 18, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 18, 2010.
- 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.