Disclosed herein is a method for obtaining compounds and compositions from plant and fungus materials by thermal treatment, affinity capture, filtration, and release through multi-phasic transitions between gas, solid, and liquid states. The compounds of interest are obtained by manipulating the temperature and pressure of the heating chamber. The compounds in gas phase are passed through an affinity medium which captures the compounds of interest in either solid or liquid phase by exposing the compound of interest to the localized micro-affinity environment of the medium. The compounds are separated from the medium using direct competition with solvent or buffers optimized for the specific chemical properties of compounds.

According to the present invention there is provided a method for enantiomeric enrichment of a mixture of two enantiomers of a chiral compound, the method comprises the application of the mixture of two enantiomers of a chiral compound onto a surface of a support material for producing a coated support, the determination a first value of an optical activity (OA.sub.0) of the coated support, the irradiation of the coated support with a light beam having an intensity at least higher than a desorption threshold of one of the enantiomers from the coated support, wherein, if the support material is achiral, the light beam is circularly polarized and, if the support material is chiral, the light beam is unpolarized, linearly polarized or circularly polarized, and the determination of a second value of the optical activity (OA.sub.e) of the coated support after said irradiation, wherein the second value of the optical activity (OA.sub.e) differs from the first value of the optical activity (OA.sub.0).

The present disclosure discloses a method for preparing 2,5-dimethylphenol by selective catalytic conversion of lignin, relates to the technical field of chemistry, and includes the following steps: mixing lignin, a catalyst, and ethanol, and then carrying out a catalytic conversion reaction of lignin under the gaseous supercritical conditions of ethanol; and cooling the reaction product by quenching after the completion of reaction, and then subjecting it to separation and extraction to obtain 2,5-dimethylphenol. The catalyst comprises a modified sepiolite carrier, an active metal Mo, and auxiliary agents Zr and Fe. The process of the present disclosure is simple, and the prepared catalyst is a solid catalyst, which avoids problems of difficult recovery, serious environmental pollution and equipment corrosion caused by the use of homogeneous organic acid-base catalysts.

The present disclosure discloses a method for preparing 2,5-dimethylphenol by selective catalytic conversion of lignin, relates to the technical field of chemistry, and includes the following steps: mixing lignin, a catalyst, and ethanol, and then carrying out a catalytic conversion reaction of lignin under the gaseous supercritical conditions of ethanol; and cooling the reaction product by quenching after the completion of reaction, and then subjecting it to separation and extraction to obtain 2,5-dimethylphenol. The catalyst comprises a modified sepiolite carrier, an active metal Mo, and auxiliary agents Zr and Fe. The process of the present disclosure is simple, and the prepared catalyst is a solid catalyst, which avoids problems of difficult recovery, serious environmental pollution and equipment corrosion caused by the use of homogeneous organic acid-base catalysts.

A system for removing undesirable organic compounds so that the desirable cannabinoids, terpenes, and any other beneficial organic compounds can be easily and effectively captured is provided herein. The system makes use of diatomaceous earth filters through which a solution containing the organic compounds is rinsed with liquid non-polar solvent. The undesirable components remain in the diatomaceous while the beneficial organic compounds pass through and are collected in a liquid solution.

A system for removing undesirable organic compounds so that the desirable cannabinoids, terpenes, and any other beneficial organic compounds can be easily and effectively captured is provided herein. The system makes use of diatomaceous earth filters through which a solution containing the organic compounds is rinsed with liquid non-polar solvent. The undesirable components remain in the diatomaceous while the beneficial organic compounds pass through and are collected in a liquid solution.

A method of making CBD concentrate or CBD Isolate comprises (a) milling a raw material; (b) contacting the milled raw material with an extraction solvent and separating a solid waste material to form a filtered extract; (c) concentrating the filtered extract; (d) washing the concentrated extract to form an organic phase and an aqueous phase; (e) separating the aqueous phase from the organic phase to form a washed extract; (f) removing an organic solvent from the washed extract to form a concentrated washed extract; (g) decarboxylating the concentrated washed extract; (h) vacuum distilling the decarboxylated extract to form a distillate; (i) dewaxing the distillate to form a post-dewax filtrate; (j) applying a vacuum to the post-dewax filtrate to form a post-dewax concentrate; (k) degassing the post-dewax concentrate; and (l) vacuum distilling the degassed concentrate to form a CBD concentrate.

Disclosed herein is a method for obtaining compounds and compositions from plant and fungus materials by thermal treatment, affinity capture, filtration, and release through multi-phasic transitions between gas, solid, and liquid states. The compounds of interest are obtained by manipulating the temperature and pressure of the heating chamber. The compounds in gas phase are passed through an affinity medium which captures the compounds of interest in either solid or liquid phase by exposing the compound of interest to the localized micro-affinity environment of the medium. The compounds are separated from the medium using direct competition with solvent or buffers optimized for the specific chemical properties of compounds.

A bisphenol composition includes 95% or more by mass of a bisphenol and 200 mass ppm or more of a compound represented by the following general formula (II):

##STR00001##

In formula (II), R.sup.21 and R.sup.22 denote a methyl group or a hydrogen atom; R.sup.22 is a methyl group when R.sup.21 is a hydrogen atom; R.sup.22 is a hydrogen atom when R.sup.21 is a methyl group; R.sup.23 to R.sup.25 independently denote a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; and R.sup.23, R.sup.24, and R.sup.25 may be bonded or cross-linked between two of the groups. A method for producing a polycarbonate resin using the bisphenol composition is also described.

Disclosed herein are embodiments of a method for making cannabidiol. Also disclosed herein are embodiments of a composition comprising cannabidiol and one or more GRAS components. The method and composition embodiments described herein address the drawbacks associated with conventional methods for making and/or isolating cannabidiol.