A method for extraction, in which an extraction agent is used for dissolving at least one extraction material out of a substance. The extraction agent includes fatty acid ethyl ester and/or fatty acid methyl ester. In one embodiment the extraction agent is an omega-3 and/or omega-6 fatty acid, preferably EPA, DHA, DPA, ETA, 21:5n3 and/or SDA. In one embodiment the extraction agent includes at least 500 mg/g, preferably at least 700 mg/g of the fatty acid ethyl ester and/or of the fatty acid methyl ester. Expediently, the mixture of substances is a plant material, preferably hemp, and the extraction material is a cannabinoid, preferably CBD and/or THC.

A method for extraction, in which an extraction agent is used for dissolving at least one extraction material out of a substance. The extraction agent includes fatty acid ethyl ester and/or fatty acid methyl ester. In one embodiment the extraction agent is an omega-3 and/or omega-6 fatty acid, preferably EPA, DHA, DPA, ETA, 21:5n3 and/or SDA. In one embodiment the extraction agent includes at least 500 mg/g, preferably at least 700 mg/g of the fatty acid ethyl ester and/or of the fatty acid methyl ester. Expediently, the mixture of substances is a plant material, preferably hemp, and the extraction material is a cannabinoid, preferably CBD and/or THC.

A process for recovering by-products of a substituted aromatic hydrocarbon oxidation reaction, comprising cooling one or more of a vapor stream directed to a high-pressure absorber (380), a solvent-rich scrubbing stream (381) directed to a high-pressure absorber (380), and a water-rich liquid stream (383) directed to a solvent recovery zone, by heat exchange with a cooled spent scrubbing liquid withdrawn from a low-pressure scrubber (430).

A process for recovering by-products of a substituted aromatic hydrocarbon oxidation reaction, comprising cooling one or more of a vapor stream directed to a high-pressure absorber (380), a solvent-rich scrubbing stream (381) directed to a high-pressure absorber (380), and a water-rich liquid stream (383) directed to a solvent recovery zone, by heat exchange with a cooled spent scrubbing liquid withdrawn from a low-pressure scrubber (430).

The present invention refers to a process for the purification of levulinic acid, an aqueous solution comprising levulinic acid and a process for the production of levulinic acid.

The present invention refers to a process for the purification of levulinic acid, an aqueous solution comprising levulinic acid and a process for the production of levulinic acid.

The present invention refers to a process for the purification of levulinic acid, an aqueous solution comprising levulinic acid and a process for the production of levulinic acid.

The invention provides a method for separating and preparing triterpenoid acids in seabuckthorn pomace, which mainly comprises extracting and purifying triterpenoid acids, and purifying and separating using a chromatographic method under specific conditions. The present invention effectively separates two groups of isomers of triterpene acid from seabuckthorn pomace simultaneously at the first time through specific methods and conditions, and provides possibility for further research and utilization of seabuckthorn pomace.

The invention provides a method for separating and preparing triterpenoid acids in seabuckthorn pomace, which mainly comprises extracting and purifying triterpenoid acids, and purifying and separating using a chromatographic method under specific conditions. The present invention effectively separates two groups of isomers of triterpene acid from seabuckthorn pomace simultaneously at the first time through specific methods and conditions, and provides possibility for further research and utilization of seabuckthorn pomace.

The disclosure provides methods and apparatus for producing 3-hydroxypropionic acid or a salt thereof, for removing 3-hydroxypropionic acid from aqueous solution (e.g., aqueous broth), and for using it to make various chemicals.