Separation system and separation method of cannabidiol

• Main Authors: ZHU DEQUAN, ZHAO XIN, HE XIRUI
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2021
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention relates to a separation system and a separation method of cannabidiol, and belongs to the technical field of separation and purification of cannabidiol. The separation method of cannabidiol comprises the following steps: taking flowers and leaves of industrial cannabis sativa, firstly drying, then crushing to obtain disintegrating slag, adding an extraction solvent, and carrying out countercurrent extraction to obtain an extracting solution; concentrating the extracting solution, diluting with water to obtain a diluent, adsorbing with a resin column, and eluting with an eluting solvent to obtain an eluent; concentrating the eluent to obtain crude paste; carrying out reverse chromatography gradient elution on the crude paste to obtain a semi-finished product liquid; concentrating the semi-finished product liquid to obtain a crude product; and recrystallizing the crude product, filtering to obtain a filter cake, and drying to obtain a finished product, namely cannabidiol. The invention also provid