US10315129B1 – June 11, 2019 – Extraction method

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Inventors :

Michael I Auerbach; William L Reilly

Owner :

Entheo Gardens Inc

Application Number :

US15919040

Document Number :

US10315129B1

Priority Date :

March 12, 2018

Filing Date :

March 12, 2018

Date of Grant/ Publication :

June 11, 2019

Class :

; B01D11 / 02; C07D311 / 80; C07C7 / 10; C07C7 / 00

Abstract

A method for extraction of desirable compounds from cannabis provides for high-cannabinoid full spectrum (HCFSE) extractions, using CO 2 at low temperature to extract the compounds in an extraction vessel. The CO 2 with extracted compounds is transferred to a heated vessel which converts the CO 2 to a gas, allowing the desired compounds to drop out and be removed.

Claim(s)

1. A method of extracting from cannabis, comprising the steps of: a) placing cannabis in an extraction vessel; b) introducing CO 2 into the extraction vessel at an extraction pressure and at an extraction temperature, c) thereby extracting components from the cannabis; d) moving the CO 2 with extracted components from the extraction vessel to a first separator held at a first separator pressure of between 500 and 900 psi and a separation temperature thereby dropping out extracted terpenes, cannabinoids or THC; and e) removing the extracted terpenes, cannabinoids or THC from the first separator.;
17. A method of extracting from cannabis, comprising the steps of: a) placing cannabis in an extraction vessel; b) introducing CO 2 into the extraction vessel at an extraction pressure and at an extraction temperature, c) thereby extracting components from the cannabis; d) moving the CO 2 with extracted components from the extraction vessel to a first separator held at a first separator pressure and a separation temperature of 100 to 600 degrees F. thereby dropping out extracted terpenes, cannabinoids or THC; and e) removing the extracted terpenes, cannabinoids or THC from the first separator.

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