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373 条记录 (耗时 0.015 秒)

    Liquid-liquid extraction apparatus
    91.
    发明授权
    Liquid-liquid extraction apparatus 失效
    液 - 液萃取仪

    公开(公告)号：US4039389A

    公开(公告)日：1977-08-02

    申请号：US627989

    申请日：1975-11-03

    申请人： William J. Christman

    发明人： William J. Christman

    IPC分类号： B01D11/04 ,  C10G21/00 ,  C10G19/08

    CPC分类号： B01D11/043 ,  B01D11/0488 ,  C10G21/00

    摘要： High efficiency in extraction operations, such as extracting mercaptans from hydrocarbons with caustic, is obtained over a wide range of flow rates through a single extraction column by the provision of an intermediate product drawoff means located between a downstream section of extraction trays having greatest efficiency at low throughputs and an upstream section of trays having peak efficiency at high throughputs. A second product stream is removed after passing through the low flow rate trays and is blended with the stream from the intermediate drawoff means.

    摘要翻译： 提取操作的高效率，例如用苛性碱从碳氢化合物中提取硫醇，可通过单个提取塔在宽范围的流速下提供中间产物抽出装置，该中间产物抽出装置位于提取塔板的下游部分之间，其效率最高 低产量和高产量峰值效率的托盘的上游部分。 在通过低流量塔盘之后除去第二产物流，并与来自中间抽出装置的流混合。

    Liquid-liquid contacting means
    95.
    发明授权
    Liquid-liquid contacting means 失效
    液液接触方式

    公开(公告)号：US3730690A

    公开(公告)日：1973-05-01

    申请号：US3730690D

    申请日：1971-10-18

    申请人： PHILLIPS PETROLEUM CO

    发明人： MCCARTHY W ,  DE LANO M

    IPC分类号： B01D11/04

    CPC分类号： B01D11/043

    摘要： D R A W I N G
    IN A MASS TRANSFER DEVICE OF THE LIQUID-LIQUID EXTRACTOR TYPE USING CONTACTING TRAYS, AN IMPROVED UPCOMER CONDUIT PROVIDING COMMUNICATION BETWEEN TRAY ZONES IS PROVIDED WITH A MULTIPLICITY OF APERTURES AT ITS LOWER EXTREMITY.

    Liquid-liquid extraction
    96.
    发明授权
    Liquid-liquid extraction 失效
    液体萃取

    公开(公告)号：US3460914A

    公开(公告)日：1969-08-12

    申请号：US3460914D

    申请日：1965-10-13

    申请人： VITAMINS LTD

    发明人： WATT PETER RIDGWAY

    IPC分类号： B01D11/04 ,  B01D11/00

    CPC分类号： B01D11/048 ,  B01D11/04 ,  B01D11/043 ,  B01D11/0434 ,  B01D11/0476

    摘要： 998,646. Centrifugal liquid-liquid extraction. VITAMINS Ltd. July 2, 1964 [April 3, 1963], No. 13243/63. Heading B1F. In centrifugal liquid-liquid extraction, the liquids to be contacted are centrifugally distributed in the form of separate layers of annular form, agitated by insertion of an agitator into said layers and allowed to re-form into said layers by removal of the agitator, one of said layers being then separately collected. As shown in the Figures, a plurality of cells separated by annular plates 11 attached to a rotatable drum 10 each comprise one such extraction zone, the drum being rotated by means of a drive connected to one of supporting rollers 12. A tube 14, parallel but not coaxial with drum 10, supports an agitator 17 withdrawal tube 19 and drain tube 18 for each of said cells and is rotated by means of a drive to supporting shaft 35 in the reverse direction to the drum. As the tube 19 rotates, the agitators 17 first enter the layers of liquid formed by rotation of the drum whereby strong ,agitation takes place: further rotation of the tube lifts the agitators clear of the liquids which thus re-form into layers, after which the withdrawal tubes 19 reach the position shown in Fig. 7 and begin to remove the inner layers into separate cells formed in tube 14 by means of discs corresponding in position to the annular plates 11. Continued rotation of the inner tube brings the outlet pipes 18 into a position to discharge the removed liquid, and said pipes are so shaped as to convey said liquid into the next adjacent zone of the outer drum. The lower phase is filled into the apparatus before commencing to run the machine: the upper phase is introduced by means of a scoop 24 which enters a reservoir shown in broken outline at 38. Liquid is removed through line 25. Further modifications show (a) the provision of a second series of withdrawal pipes to remove the outer layers after removal of the inner layers, the arrangement being such that an inner layer from one cell and an outer layer from an adjacent cell are collected into a single cell in the central tube, (b) a withdrawal pipe having chamfered end surfaces to obviate disruption of the layers, and (c) a different arrangement of agitator and tubes on tube 14 whereby the latter may be rotated in the reverse direction. In a further embodiment each cell in tube 14 has a median partition forming two halves into which the inner and outer layers from adjacent cells in the drum are withdrawn, for subsequent discharge into a common cell in said drum. It is also stated that by the use of two withdrawal tubes both layers may be transferred in opposite directions, the liquid to be treated being introduced at the centre of the apparatus whilst effluents of constant composition are withdrawn at the ends.

    Countercurrent liquid-liquid extraction apparatus
    99.
    发明授权
    Countercurrent liquid-liquid extraction apparatus 失效
    逆流液 - 液萃取仪

    公开(公告)号：US3389969A

    公开(公告)日：1968-06-25

    申请号：US43158165

    申请日：1965-02-10

    申请人： HOFFMANN LA ROCHE

    发明人： WILLI WIRZ

    IPC分类号： B01D1/16 ,  B01D3/30 ,  B01D11/04

    CPC分类号： B01D3/30 ,  B01D1/16 ,  B01D11/043 ,  B01D11/0434

    摘要： 1,091,554. Liquid-liquid contact apparatus. F. HOFFMANN-LA ROCHE & CO. A.G. Feb. 16, 1965 [Feb. 18, 1964], No. 6592/65. Heading B1F. A solvent-extraction apparatus comprises a vertically elongated extraction column 12 divided by horizontal annular floor plates 70 into a plurality of sections, each section being further divided by two horizontal support plates 32 and 40 into a mixing chamber M and a separating chamber 90. The support plates 32 and 40 have interfitting, concentric baffles forming a tortuous path for the liquids which are drawn into the mixing chamber by vertical agitator blades 24 mounted on a rotating shaft which extends through the column. The heavier phase liquid is introduced at the top of the column and is withdrawn at the bottom of the column having flowed along the path shown by heavy arrows, while the lighter phase liquid enters at the bottom of the column, flows upwards through the sections as shown by broken arrows, and is withdrawn at the top of the column. The lighter arrows 92 and 94 show recirculation of the phases due to blades 24. Wire gauze may be wrapped around the peripheral gap between the plates 32 and 40 to assist the separation. If the coherent phase is formed from the heavy phase, the column is rotated through 180‹ so that the apertured pipes point upwards, the broken arrows then indicating the path of the heavier phase.