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US 10,328,361 B2Granted
Extracting substances from botanical matter
OwnerJeffrey M. Skellinventor
Life of this patent
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Abstract
A useful substance is extracted from botanical feedstock by mechanically compressing the feedstock and pumping a solvent through the compressed feedstock at high pressure while applying compressive mechanical force against the feedstock. Movement of pressurized solvent through the compressed feedstock may increase the volume of solvent in contact with the feedstock. Flow of solvent under pressure may also present a shearing force that facilitates dissociation of the useful substance from the feedstock.
Claims7
A method comprising:
- mechanically compressing a botanical feedstock into compressed botanical feedstock by application of a compressive force of 500 to 10,000 pound-force per square inch;
- after compressing the botanical feedstock into compressed botanical feedstock, pumping a solvent through the compressed botanical feedstock at a pressure in a range of 500 to 20,000 pound-force per square inch, an amount of at least one substance present in the compressed botanical feedstock dissolving into the solvent to produce partially loaded solvent;
- and
- recovering the partially loaded solvent.
1 more element
Dependencies are inferred from the claim text.