Fermentation of glucose with recycle of non-fermented components
CA 1190493 A · Owner: St. Lawrence Technologies Limited · Inventors: Assarsson, Per G.; Nagasuye, Joseph H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A process for producing ethanol is described which includes the steps of: (a) continuously moving a feedstock slurry of starch and acid through a high intensity tubular starch hydrolyzer to produce a hydrolyzate in fluid form containing glucose (b), fermenting the glucose-containing fluid to form a fermentation product containing ethanol (c) distilling, the fermentation product to separate the ethanol from a distillation residue containing non-fermented carbohydrate materials and, (d) recycling at least part of the obtained distillation residue as part of the starch and acid slurry feedstock to the hydrolyzer whereby a substantial portion of the recycled non-fermented carbohydrate …
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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 July 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2002.
- 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.