The present disclosure relates to a method for producing a purified cannabaceae biomass extract, wherein a crude alcoholic cannabaceae biomass extract comprising at least two cannabinoid compounds in an alcoholic solvent is circulating through a powdered layer of activated carbon and the purified cannabaceae biomass extract is recovered with a ratio of cannabinoid compounds in the purified cannabaceae biomass extract is higher than the ratio of the cannabinoid compounds in the crude alcoholic cannabaceae biomass extract.

The present disclosure relates to a method for producing a purified cannabaceae biomass extract, wherein a crude alcoholic cannabaceae biomass extract comprising at least two cannabinoid compounds in an alcoholic solvent is circulating through a powdered layer of activated carbon and the purified cannabaceae biomass extract is recovered with a ratio of cannabinoid compounds in the purified cannabaceae biomass extract is higher than the ratio of the cannabinoid compounds in the crude alcoholic cannabaceae biomass extract.

Disclosed is an industrial extraction method of cannabidiol, pertaining to the field of medicine and chemical industry. The present invention aims to resolve the problems of difficulty in wax removal, low extraction rate of cannabidiol, and excessively high content of tetrahydrocannabinol during extraction using conventional solvents in the prior art. The extraction method employs raw material pretreatment, granulation, extraction, liquid-liquid extraction, decolorization, concentration, and other processes, such that wax removal from an extracted liquid is improved, the purity of a crude cannabidiol oil can be increased to 60%, and 40% of tetrahydrocannabinol can be removed. The method has high extraction yields and low costs, and can be implemented in large-scale industrial production.

Disclosed is an industrial extraction method of cannabidiol, pertaining to the field of medicine and chemical industry. The present invention aims to resolve the problems of difficulty in wax removal, low extraction rate of cannabidiol, and excessively high content of tetrahydrocannabinol during extraction using conventional solvents in the prior art. The extraction method employs raw material pretreatment, granulation, extraction, liquid-liquid extraction, decolorization, concentration, and other processes, such that wax removal from an extracted liquid is improved, the purity of a crude cannabidiol oil can be increased to 60%, and 40% of tetrahydrocannabinol can be removed. The method has high extraction yields and low costs, and can be implemented in large-scale industrial production.

The present invention relates to an isomerization process of product obtained from bisphenol preparation from a condensation reaction of ketone and phenol comprising contacting the product obtained from bisphenol preparation from a condensation reaction of ketone and phenol with the ion exchange resin in aqueous condition for the isomerization of the undesired product and separating the product having higher bisphenol content, wherein said ion exchange resin is aromatic polymer having the sulfonic acid group modified with at least one promoter selected from the compound shown in the structure (I):

##STR00001##

The present invention relates to an isomerization process of product obtained from bisphenol preparation from a condensation reaction of ketone and phenol comprising contacting the product obtained from bisphenol preparation from a condensation reaction of ketone and phenol with the ion exchange resin in aqueous condition for the isomerization of the undesired product and separating the product having higher bisphenol content, wherein said ion exchange resin is aromatic polymer having the sulfonic acid group modified with at least one promoter selected from the compound shown in the structure (I):

##STR00001##

The present disclosure relates to molecularly imprinted polymers that target cannabinoid(s), including THC and CBD, as well as methods of making molecularly imprinted polymers that target cannabinoid(s), including THC and CBD and uses thereof.

The present disclosure relates to molecularly imprinted polymers that target cannabinoid(s), including THC and CBD, as well as methods of making molecularly imprinted polymers that target cannabinoid(s), including THC and CBD and uses thereof.

Method and system for the extraction of oils from a biomass with a liquid carbon dioxide using cosolvent. The system and method can be used to extract cannabinoids from Cannabis biomass by cryogenically freezing the biomass and exposing the Cannabis biomass to sub-cooled liquid carbon dioxide and capturing a first high-terpene extract fraction, and then exposing the Cannabis biomass with a mixture of superfluid carbon dioxide and a cosolvent to capture a high cannabinoid second fraction.

Method and system for the extraction of oils from a biomass with a liquid carbon dioxide using cosolvent. The system and method can be used to extract cannabinoids from Cannabis biomass by cryogenically freezing the biomass and exposing the Cannabis biomass to sub-cooled liquid carbon dioxide and capturing a first high-terpene extract fraction, and then exposing the Cannabis biomass with a mixture of superfluid carbon dioxide and a cosolvent to capture a high cannabinoid second fraction.