An extractor with a housing, conveyor assembly, and a plurality of recycle stages which are configured to direct a flow of solvent or miscella upwardly through a material bed.

A process for preparing a sunflower protein product from a sunflower protein source, the sunflower protein product having a protein content of greater than 60 wt % (N6.25) d.b, is provided. A sunflower protein product as well as a residual sunflower protein product are also provided as are food and beverages, pet food, animal feed, industrial product, cosmetic product or personal care product comprising the sunflower protein product as well as a residual sunflower protein product.

A column for the liquid-liquid extraction of a feedstock by an extraction solvent, containing sieve trays (P.sub.i) for a dispersed phase (B) to pass through, the sieve trays being spaced apart by an inter-tray space (8), and riser/downcomer conduits (6), a riser/downcomer conduit being an opening that allows a continuous phase (A) to pass through a sieve tray, the extraction column (1) containing, in alternation, type-I sieve trays containing two peripheral riser/downcomer conduits, and type-II sieve trays containing a single central riser/downcomer conduit, wherein: the height H1 of the inter-tray spaces situated directly downstream of the type-I trays, in the direction of flow of the continuous phase, is greater than the height H2 of the inter-tray spaces positioned directly downstream of the type-II trays. Also, a liquid-liquid extraction method that makes use of the liquid-liquid extraction column.

The present invention describes a method which outlines a process for conversion of CBD to a .sup.9-tetrahydrocannabinol (.sup.9-THC) compound or derivative thereof involving treating a naturally produced CBD intermediate compound with an organoaluminum-based Lewis acid catalyst, under conditions effective to produce the .sup.9-tetrahydrocannabinol compound or derivative thereof at a relatively high concentration. The source of the CBD is from industrial hemp having less than 0.3% .sup.9-THC and extracting and purifying a CBD distillate or isolate or a combination thereof. This procedure will produce .sup.9-THC that is essentially free from any other cannabinoids other than some trace amounts of the initial CBD starting material, or about 95% .sup.9-THC and 2-4% CBD. Another aspect of the present invention relates to a process for further purification and enrichment of the .sup.9-THC using distillation and collecting an essentially pure fraction of .sup.9-THC using additional distillation or enrichment form of purification. Included are methods and processes to scale the reaction from the lab to large scale manufacturing. Included are methods for adding a molecule marker to authenticate high purity .sup.9-THC products. Formulations and uses for pharmaceuticals, nutraceuticals, food products, and topicals are also provided.

The present disclosure describes a method which outlines a process for conversion of CBD to a .sup.9-tetrahydrocannabinol (.sup.9-THC) compound or derivative thereof involving treating a naturally produced CBD intermediate compound with an organoaluminum-based Lewis acid catalyst, under conditions effective to produce the .sup.9-tetrahydrocannabinol compound or derivative thereof at a relatively high concentration. The source of the CBD is from industrial hemp having less than 0.3% .sup.9-THC and extracting and purifying a CBD distillate or isolate or a combination thereof. This procedure will produce .sup.9-THC that is essentially free from any other cannabinoids other than some trace amounts of the initial CBD starting material, or about 95% .sup.9-THC and 2-4% CBD. Another aspect of the present invention relates to a process for further purification and enrichment of the .sup.9-THC using distillation and collecting an essentially pure fraction of .sup.9-THC using additional distillation or enrichment form of purification. Included are methods and processes to scale the reaction from the lab to large scale manufacturing. Included are methods for adding a molecule marker to authenticate high purity .sup.9-THC products. Formulations and uses for pharmaceuticals, nutraceuticals, food products, and topicals are also provided.

A method for preparing a Luo Han Guo sweetening composition from Siraitia grosvenorii and a use thereof. The method for extracting the sweetening composition from Siraitia grosvenorii preferably includes the followings: accelerating ripening of immature Siraitia grosvenorii, and performing juicing, extraction with pure water, removal of impurities, concentration and purification to obtain the sweetening composition. Further, the present application relates to a compound sweetener containing the sweetening composition, which can be widely used in foodstuffs, beverages, healthcare products, and daily chemicals. The contents of mogroside III, mogroside IIe, and the like in the Luo Han Guo sweetening composition are controlled so as to improve the flavor thereof, and a production process for the sweetening composition uses only pure water, without use of organic solvents such as ethanol, to ensure a greener and healthier production process.

Embodiments of the present disclosure generally relate to apparatus for solvent extraction of coal and to processes for solvent extraction of coal. In an embodiment, an apparatus for solvent extraction of coal is provided. The apparatus includes a plurality of stationary members coupled to a stationary shaft, each stationary member having a stationary member opening. The apparatus further includes a rotatable shaft extending through the plurality of stationary members. The apparatus further includes a plurality of rotatable members coupled to the rotatable shaft, each rotatable member paired with a stationary member, and each rotatable member has a rotatable member opening configured to rotate relative to the stationary member opening. The apparatus further includes a plurality of members for agitating materials passing through the apparatus, the members for agitating materials coupled to the rotatable shaft, each member for agitating materials positioned between the paired stationary members and rotatable members.

A countercurrent extraction device for spinning includes an extraction box containing extraction liquid, and the extraction box is provided with a plurality of partition assemblies, and the extraction box is partitioned into a plurality of extraction chambers by the partition assemblies; each of the partition assemblies includes a first plate and a second plate, two ends of the first plate are fixedly connected to two sidewalls of the extraction box, and a first gap is provided between a lower edge of the first plate and a bottom wall of the extraction box; a lower edge of the second plate is connected to the bottom wall of the extraction box, a second gap is provided between a top edge of the second plate and a top wall of the extraction box, and heights of a plurality of second plates are gradually decreased along a flow direction of the extraction liquid.

The present invention relates to a process for the selective extraction of a salt to be extracted from a brine to be treated containing the said salt to be extracted, characterized in that: the brine to be treated (S1) is sent to an initial extraction stirrer-mixer (1a) into which a liquid hydrophobic organic phase is also introduced, the said brine and the said liquid hydrophobic organic phase are mixed in the said initial extraction stirrer-mixer (1a), and the mixture is sent to an initial decanter-separator (1d, 1dc), in order to obtain: a brine from which salt to be extracted has been removed; and an organic phase loaded with salt to be extracted; the brine from which the salt to be extracted has been removed is recovered; the organic phase loaded with salt to be extracted is sent to an initial washing stirrer-mixer-decanter-centrifugal separator (5a, 5dc or 7a, 7dc), in order to obtain a purified organic phase loaded with salt to be extracted, which is sent to a so-called organic heat exchanger (1e) in which it is heated before being sent to a so-called initial regeneration column (1c; 2c), in which a countercurrent exchange is carried out with hot water at a higher temperature than that of the initial brine, in order to obtain: a water containing the salt to be extracted; and a regenerated organic phase, having lost the salt to be extracted; the regenerated organic phase is recycled to the initial extraction stirrer-mixer (1a).