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42 条记录 (耗时 0.012 秒)

    DEVICE FOR HIGH EFFICIENCY CONTINUOUS COUNTERCURRENT EXTRACTION USING A ROTATING HELICAL TUBE.
    11.
    发明公开
    DEVICE FOR HIGH EFFICIENCY CONTINUOUS COUNTERCURRENT EXTRACTION USING A ROTATING HELICAL TUBE. 失效
    设备用于连续有效抵御电力提取BY型转管上的螺钉来。

    公开(公告)号：EP0016013A4

    公开(公告)日：1980-08-14

    申请号：EP79900586

    申请日：1979-12-17

    申请人： US HEALTH

    发明人： ITO YOICHIRO

    IPC分类号： B01D15/08 ,  B01D11/04 ,  C02F1/26 ,  G01N30/42 ,  C02F1/28 ,  C07C101/00

    CPC分类号： C02F1/26 ,  B01D11/048 ,  B01D11/0484 ,  G01N30/42

    摘要： A continuous extraction system for countercurrent chromatography to achieve continuous solvent extraction, is disclosed wherein two immiscible solvents move in opposite directions through a rotating helical column (11). The coiled tube (11) has two pairs of flow connecting tubes, I u and I u to respectively feed and collect phase 1, and II u and II u to respectively feed and collect phase II. Elution of a desired phase takes place by use of a separation device at the head end which selects either the heavier or the lighter phase. This may consist of a suitably weighted suspended outlet tube (18) of Figure 2 in a rotating cylindrical outlet chamber (16) or may consist of a shunt "S" and settling chamber (40 of Figure 6) located outside the rotating part; the heavier phase may be removed from the bottom and the lighter phase may be removed from the top.

    METHOD FOR PREPARATION OF A CANNABINOID EXTRACT FROM HEMP
    12.
    发明公开
    METHOD FOR PREPARATION OF A CANNABINOID EXTRACT FROM HEMP 审中-公开
    从HEMP制备大麻素提取物的方法

    公开(公告)号：EP3297646A1

    公开(公告)日：2018-03-28

    申请号：EP16735566.8

    申请日：2016-05-19

    申请人： "Pobelch - Gle" Ood

    发明人： IVANOV, Ervin, Milenov

    IPC分类号： A61K36/185 ,  B01D11/04

    CPC分类号： A61K36/185 ,  A61K2236/00 ,  B01D11/048

    摘要： The invention relates to a method for extraction and separation of cannabinoids from industrial hemp, designed for medicinal purposes, and also the preparation of an extract, not containing tetrahydrocannabinol, and the preparation of maximum refined individual cannabinoids. The advantage of the method according to the invention consists in the preparation of an extract from hemp, which contains at a high percentage medically useful cannabinoids and doesn't contain undesirable admixtures and tetrahydrocannabinol, so that it can be used without any restrictions as a pharmaceutical. Moreover, the method allows the possibility of separation, if required, into individual useful cannabinoids as pure compounds, in ecological terms, without environmental pollution, as it is according to the most synthetic methods. The possibility of producing pure compounds represents a great contribution to the research of substances, related to a concrete medical application and the preparation of various combinations thereof, with the objective of expansion the field of application. The method is also cost-effective. The method consists in that the extract, obtained in accordance with various methods, undergoes a centrifugal countercurrent liquid-liquid chromatography, as the operation includes a centrifugation of solvents and the extract, obtained during the previous operations; the solvents form two phases, the phase, which the extract is dissolved in, is mobile, and the other one is stationary, whereby the mobile phase passes through the stationary phase, wherein several amounts of the components of the extract content are captured; this passing of the mobile phase through the stationary phase is repeated many times, until separation of the desired substances, which are analyzed in a familiar way, whereby as stationary phase solvents are used, which are selected from the group of straight-chain and branched-chain hydrocarbons, produced from crude oil, straight-chain and/or branched-chain alcohols, straight-chain and/or branched-chain ketones, straight-chain and/or branched chain carboxylic acids, straight-chain and/or branched-chain nitriles, gases in supercritical and subcritical condition, like carbon dioxide, nitrogen, nitrogen oxides, water with modified acidity with or without salts of organic and non-organic substances dissolved therein, as for example NaS0
    3 , carbonate compounds or mixtures of the above-mentioned solvents, and as mobile phase solvents are used, which are selected from the group of straight-chain and branched-chain hydrocarbons, produced from crude oil, straight-chain and/or branched-chain alcohols, straight-chain and/or branched-chain ketones, straight-chain and/or branched chain carboxylic acids, straight-chain and/or branched-chain nitriles, gases in supercritical and subcritical condition, like carbon dioxide, nitrogen, nitrogen oxides, water with modified acidity by organic and/or inorganic acids and bases, as well as Lewis acids and bases in the interval from 0 to 14 pH, with or without salts of organic and non-organic substances dissolved therein, as for example NaS0
    3 , carbonate compounds, or mixtures of the above-mentioned solvents, while the choice of the solvents between the two phases is conditional on that, they shall be different and immiscible with each other; the centrifugation revolutions and the flow speed of the mobile phase are designed (calculated or determined experimentally) depending on the total phase volume; thus at the finish of the process the tetrahydrocannabinols and/or the tetrahydrocannabinol acids are separated from the remaining cannabinoids and/or cannabinoid acids in the solution, the other cannabinoids in the process can also be separated as a pure substance, separate in a solution and the solvents are evaporated respectively, in order to obtain a pure substance.

    Perfectionnements aux extracteurs centrifuges du type mono-étage et multi-étages
    15.
    发明公开
    Perfectionnements aux extracteurs centrifuges du type mono-étage et multi-étages 失效
    单一和mehrstufiger Zentrifugal-Extraktor。

    公开(公告)号：EP0508915A1

    公开(公告)日：1992-10-14

    申请号：EP92420112.2

    申请日：1992-04-07

    申请人： ROBATEL S.A.

    发明人： Miachon, Jean-Paul

    IPC分类号： B01D11/04

    CPC分类号： B01D11/048

    摘要： L'extracteur comprend des moyens pour le recyclage de l'un au moins des deux liquides (A et B) à la sortie de la chambre de décantation en vue de le réintroduire dans la chambre de mélange. Le brevet décrit l'application de l'invention aux extracteurs centrifuges du type mono-étage et du type multi-étages.

    摘要翻译： 提取器包括用于在离开分离室的出口处再循环两种液体（A和B）中的至少一种的装置，以便将它们重新引入混合室。 描述了将本发明应用于单级和多级型离心萃取器。 ... ...

    Process and apparatus for effecting mass transfer
    18.
    发明公开
    Process and apparatus for effecting mass transfer 失效
    用于影响大量传送的过程和装置

    公开(公告)号：EP0023745A3

    公开(公告)日：1981-09-16

    申请号：EP80200730

    申请日：1978-11-13

    申请人： IMPERIAL CHEMICAL INDUSTRIES PLC

    发明人： Ramshaw, Colin ,  Mallinson, Roger Howard

    IPC分类号： B01D03/30 ,  B01D53/18 ,  B01D11/04 ,  B01J19/04

    CPC分类号： B01J19/1806 ,  B01D3/30 ,  B01D11/048 ,  B01D53/18 ,  B01J19/0066 ,  B01J19/0073 ,  B01J2219/00103 ,  B01J2219/00132

    摘要： Apparatus for effecting mass transfer between two fluid phases the first of which is a liquid, which apparatus comprises (a) an element (9) which is permeable to the fluids, which has pores which present a tortuous path to the fluids, and which is rotatable about an axis such that the fluids, are subjected to a mean acceleration of at least 300 m sec- 2 as they flow through the pores with the first fluid flowing radially outwards away from the said axis, (b) means for charging the fluids to the permeable element and (c) at least means for discharging one of the fluids or a derivative thereof from the permeable element, characterised in that the permeable element comprises strands, fibres, fibrils or filaments or mixtures thereof. The apparatus may be used in absorption, distillation or extraction processes.

    DEVICE FOR HIGH EFFICIENCY CONTINUOUS COUNTERCURRENT EXTRACTION USING A ROTATING HELICAL TUBE.
    19.
    发明公开
    DEVICE FOR HIGH EFFICIENCY CONTINUOUS COUNTERCURRENT EXTRACTION USING A ROTATING HELICAL TUBE. 失效
    设备用于连续有效抵御电力提取BY型转管上的螺钉来。

    公开(公告)号：EP0016013A1

    公开(公告)日：1980-10-01

    申请号：EP79900586

    申请日：1979-12-17

    申请人： US GOVERNMENT

    发明人： ITO YOICHIRO

    IPC分类号： B01D15/08 ,  B01D11/04 ,  C02F1/26 ,  G01N30/42 ,  C02F1/28 ,  C07C101/00

    CPC分类号： C02F1/26 ,  B01D11/048 ,  B01D11/0484 ,  G01N30/42

    摘要： Dans un systeme d'extraction continu pour la chromatographie a contre-courant pour obtenir une extraction continue de solvants, deux solvants non miscibles se deplacent en directions opposees a travers une colonne helicoidale rotative (11). Le tube helicoidal (11) presente deux paires de tubes de derivation, IF et IC pour respectivement alimenter et recueillir la phase I, et IIF et IIC pour alimenter et recueillir la phase II. La separation et la phase desiree s'obtient au moyen d'un dispositif de separation a l'extremite de tete qui selectionne la phase lourde ou la phase legere. Ce dispositif peut consister en un tube de sortie (18) convenablement equilibre dans une chambre de sortie cylindrique rotative (16), ou peut etre constitue par une derivation "s" et une chambre de stabilisation (40) situee en dehors de la partie rotative; la phase lourde peut etre extraite du fond et la phase legere de la partie superieure.