Flotation method and apparatus
    1.
    发明授权
    Flotation method and apparatus 失效
    浮选方法和装置

    公开(公告)号:US5814228A

    公开(公告)日:1998-09-29

    申请号:US685778

    申请日:1996-07-24

    摘要: Flotation apparatus (10) for removing finely divided bodies of an insoluble substance dispersed in an aqueous medium, such as oil and solids dispersed in water, comprises a vertical flotation column (12) having a feed inlet (14) and an outlet (22) for the aqueous medium, a sparging system (16) for generating gas bubbles rising upwardly in the aqueous medium to capture and raise the finely divided bodies of the insoluble substance to the surface of the aqueous medium in the column to form a layer (31) of the insoluble substance on the surface of the aqueous medium, a launder (18) for receiving an overflow of the insoluble substance and an outlet (20) for the insoluble substance in the launder. The apparatus (10) can be used in both countercurrent and co-current fashion. In a particular embodiment, the apparatus includes a mechanism for the intermittent dumping of the layer (31) of insoluble substance from the column (12).

    摘要翻译: 用于除去分散在水性介质(例如分散在水中的油和固体)的水性介质中的细分散体的浮选装置(10)包括具有进料口(14)和出口(22)的垂直浮选塔(12) 对于水性介质,用于产生在水性介质中向上升起的气泡的吸气系统(16),以将不溶性物质的细分散体吸收并升高到塔中水性介质的表面,形成层(31) 在水性介质的表面上的不溶物质,用于接收不溶物质溢出的流槽(18)和用于流体中不溶物质的出口(20)。 装置(10)可以以逆流和并流方式使用。 在一个具体实施方案中,该装置包括用于从塔(12)间歇倾倒不溶物质层(31)的机构。

    Pressurized, sparged flotation column
    2.
    发明授权
    Pressurized, sparged flotation column 失效
    加压浮选柱

    公开(公告)号:US5580463A

    公开(公告)日:1996-12-03

    申请号:US329958

    申请日:1994-10-27

    申请人: Gale L. Hubred

    发明人: Gale L. Hubred

    摘要: A method for removing residual oil from oily water under pressure is provided. The method comprises flowing a liquid stream of an oily water downward through a vertically extended zone to remove the residual oil. A gas is injected into the lower end of the zone and at a rate sufficient to generate bubbles of a predetermined volume in the liquid stream. A sufficient pressure is maintained in the zone to control the rate of expansion of the bubbles to a volume compatible with oil droplets in the liquid stream during upward migration of the bubbles and the oil droplets. The rate of flow of the liquid stream from the lower end of the zone and the rate of flow of the gas from the upper end of the zone are regulated to collect residual oil from a quiescent volume within the upper portion of the zone.

    摘要翻译: 提供了一种在压力下从油性水中除去残余油的方法。 该方法包括使油水的液体流向下流动通过垂直延伸的区域以除去残留的油。 气体被注入到该区域的下端,并以足以产生液体流中预定体积的气泡的速率被注入。 在该区域中保持足够的压力以将气泡膨胀速率控制在与气泡和油滴向上迁移期间在液体流中与油滴相容的体积。 来自该区域的下端的液体流的流速和来自该区域的上端的气体的流速被调节以从该区域上部的静止体积收集残留的油。

    CMA production utilizing organic ion exchange from fermentation broth
    10.
    发明授权
    CMA production utilizing organic ion exchange from fermentation broth 失效
    CMA生产利用发酵液中的有机离子交换

    公开(公告)号:US5772890A

    公开(公告)日:1998-06-30

    申请号:US931214

    申请日:1992-08-17

    申请人: Gale L. Hubred

    发明人: Gale L. Hubred

    IPC分类号: C07C53/10 C12N1/00 B01D11/04

    摘要: A method is provided for removing an anion from an aqueous liquid, such as a fermentation broth. The aqueous broth is contacted with a water-immiscible ion exchange liquid to extract the anion from the broth. The anion exchange liquid is then back extracted with an aqueous phase, to remove the anion, preferably for other uses.

    摘要翻译: 提供了从水性液体如发酵液中除去阴离子的方法。 水性肉汤与水不混溶的离子交换液体接触以从肉汤中提取阴离子。 然后将阴离子交换液体用水相反萃取,以除去阴离子,优选用于其它用途。