VARIABLE PERFORATION LIQUID-LIQUID EXTRACTION COLUMN

    公开(公告)号:US20250058249A1

    公开(公告)日:2025-02-20

    申请号:US18721473

    申请日:2022-12-12

    Abstract: Liquid-liquid extraction column (1) comprising points for feedstock injection (2), washing (3) and backwashing (4), two withdrawal points (5, 6), trays (Pi) located along the column and defining 2 to 30 zones each comprising at least two trays, the n zones comprising: at least one extraction zone Zi comprising the zones from Z1 to Zx, x being greater than or equal to 1, and at least one backwash zone comprising the zones from Zx+1 to Zn, n being greater than x; in which the trays of the same zone have the same number of holes per perforated tray; in which, when x>1, the number of holes per perforated tray of the zones Zi increases when i increases; and when x=1, said number of holes of the backwash zone is less than/greater than than that of the zone Z1.

    LIQUID-LIQUID EXTRACTION COLUMN WITH VARIABLE INTER-TRAY SPACE

    公开(公告)号:US20250058248A1

    公开(公告)日:2025-02-20

    申请号:US18721419

    申请日:2022-12-12

    Abstract: Liquid-liquid extraction column (1) comprising injection points for feedstock (2), for washing (3) and for backwashing (4), two withdrawal points (5, 6), trays (Pi) located along the column and defining 2 to 30 zones each comprising at least two trays, the n zones comprising: at least one extraction zone Zi comprising the zones from Z1 to Zx, x being greater than or equal to 1, and at least one backwash zone comprising the zones from Zx+1 to Zn, n being greater than x; in which the trays of one and the same zone exhibit one and the same height H of inter-tray space (10); in which, when x>1, the height H of the zones Zi increases when i increases; and, when x=1, the height H of the at least one backwash zone is less than the height H of zone Z1.

    Method of fluid circulation and interaction in a setup for implementing a multi-step chemical process

    公开(公告)号:US20240382870A1

    公开(公告)日:2024-11-21

    申请号:US18665175

    申请日:2024-05-15

    Inventor: Maël Arveiler

    Abstract: The invention relates to a method of fluid circulation in a setup for implementing a multi-step chemical process, comprising: supplying (102), through a first fluidic circulation system (10a) of the setup and a second fluidic circulation system (10b) of the setup (5) configured in a first supply setting, reagents (R1; R2) for performing a first step of the multi-step chemical process, to a fluidic interaction structure (25; 30) of the setup, collecting (104), in an intermediate product container (37a, 37b) of the setup, a product (R4) obtained from the interaction between the reagents within the fluidic interaction structure (25, 30) during the first step of the multi-step chemical process, and supplying (106), through the first fluidic circulation system (10a) and the second fluidic circulation system (10b) configured in a second supply setting different from the first supply setting, reagents for performing a second step of the multi-step chemical process, to the fluidic interaction structure (25; 30), and wherein the reagents for performing the second step include the product from the first step collected in the intermediate product container (37a, 37b) or a product obtained from the interaction between said collected product and another reagent within another fluidic interaction structure (30).

    Liquid-liquid extraction of purified psychoactive alkaloid

    公开(公告)号:US12139460B2

    公开(公告)日:2024-11-12

    申请号:US18683505

    申请日:2022-10-06

    Abstract: A solution of extracted psychoactive alkaloids is obtained from psychoactive organisms or an existing extract using a neutral or acidic solvent. Acid extraction of psychoactive compounds from psychoactive organisms results in the dephosphorylated form of psychoactive alkaloids. The solution is basified to deprotonate the alkaloids. It is then subjected to a liquid-liquid extraction with a water-immiscible solvent. The resulting psychoactive organic layer is then subjected to a second liquid-liquid extraction with weakly acidic water. The resulting psychoactive aqueous layer is then dried to form a powder with the psychoactive alkaloid in a conjugate salt form. The powder may be standardized to a desired concentration of psychoactive alkaloid by the addition of an excipient. Alternatively, the standardization may be carried out on the psychoactive aqueous phase. Obtaining the psychoactive alkaloid in the conjugate salt form reduces the amount of non-psychoactive components included in the final extract.

    LIQUID-LIQUID EXTRACTION OF PURIFIED PSYCHOACTIVE ALKALOID

    公开(公告)号:US20240327348A1

    公开(公告)日:2024-10-03

    申请号:US18683505

    申请日:2022-10-06

    Abstract: A solution of extracted psychoactive alkaloids is obtained from psychoactive organisms or an existing extract using a neutral or acidic solvent. Acid extraction of psychoactive compounds from psychoactive organisms results in the dephosphorylated form of psychoactive alkaloids. The solution is basified to deprotonate the alkaloids. It is then subjected to a liquid-liquid extraction with a water-immiscible solvent. The resulting psychoactive organic layer is then subjected to a second liquid-liquid extraction with weakly acidic water. The resulting psychoactive aqueous layer is then dried to form a powder with the psychoactive alkaloid in a conjugate salt form. The powder may be standardized to a desired concentration of psychoactive alkaloid by the addition of an excipient. Alternatively, the standardization may be carried out on the psychoactive aqueous phase. Obtaining the psychoactive alkaloid in the conjugate salt form reduces the amount of non-psychoactive components included in the final extract.

    VALVE TRAYS IN EXTRACTION COLUMNS
    8.
    发明公开

    公开(公告)号:US20240299864A1

    公开(公告)日:2024-09-12

    申请号:US18578280

    申请日:2022-07-07

    CPC classification number: B01D11/043 C01B15/013

    Abstract: An extraction method and a countercurrent liquid-liquid extraction column extracts a hydrogen peroxide containing oxidized working solution of an anthraquinone process. The extraction column includes a plurality of sieve trays, wherein at least one of said sieve trays is a valve sieve tray including a downcomer and at least one floating valve that includes a liftable opening member covering a valve hole in the valve sieve tray and can be lifted by the light phase below the sieve tray. A more stable operation of sieve tray extraction columns is possible by using a floating valve so that the flow rate of the oxidized working solution of an AO process and the daily production of hydrogen peroxide can be increased.

    Purification Of Tar Containing Gas Streams
    10.
    发明公开

    公开(公告)号:US20240254396A1

    公开(公告)日:2024-08-01

    申请号:US18421706

    申请日:2024-01-24

    Applicant: Meva Energy AB

    CPC classification number: C10C1/18 B01D11/0488 B01D11/0492 B01D47/00

    Abstract: The present invention relates to a method for purifying a tar containing gas stream. The method comprises the steps of:



    a) contacting a tar containing gas stream with a washing liquid in a washing unit to obtain a tar containing washing liquid and a purified gas stream;
    b) adding an extractant to the tar containing washing liquid to obtain an extraction liquid comprising a tar containing extractant and a regenerated washing liquid;
    c) cooling the extraction liquid;
    d) after cooling, separating the tar containing extractant from the regenerated washing liquid, and
    e) recirculating the regenerated washing liquid to the washing unit.

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