PRIMARY FROTH RECYCLE
    1.
    发明申请
    PRIMARY FROTH RECYCLE 有权
    主要回收

    公开(公告)号:US20090321326A1

    公开(公告)日:2009-12-31

    申请号:US12163590

    申请日:2008-06-27

    IPC分类号: C10G1/04

    CPC分类号: C10G1/047 B03B9/02

    摘要: A process for extracting bitumen from oil sand, comprising: mixing oil sand with process water to produce an oil sand slurry containing bitumen, sand, water and entrained air; conditioning the oil sand slurry; optionally flooding the conditioned oil sand slurry with flood water to dilute the slurry, if required; introducing the slurry into a primary separation vessel wherein separate layers of primary bitumen froth, middlings and sand tailings are formed; removing a portion of the primary bitumen froth from the primary separation vessel and recycling the portion of primary bitumen froth to that step of the process upstream of the primary separation vessel to join and mix with the feed stream moving to the primary separation vessel; and thereafter retaining said feed stream in said primary separation vessel to produce primary bitumen froth.

    摘要翻译: 一种从油砂中提取沥青的方法,包括:将油砂与工艺用水混合,生产含有沥青,砂,水和夹带空气的油砂浆料; 调理油砂泥浆; 如果需要,可以选择性地用调节水淹没经调节的油砂浆料以稀释浆料; 将浆料引入初级分离容器中,其中形成主要沥青泡沫,中间料和砂尾料的单独层; 从初级分离容器中除去主要沥青泡沫的一部分,并将主要沥青泡沫的一部分再循环到主分离容器上游的该步骤的步骤,以与移动到初级分离容器的进料流接合并混合; 然后将所述进料流保持在所述初级分离容器中以产生主要的沥青泡沫。

    ENHANCED BITUMEN FLOTATION
    2.
    发明申请
    ENHANCED BITUMEN FLOTATION 失效
    增强的白酒浮游

    公开(公告)号:US20080190817A1

    公开(公告)日:2008-08-14

    申请号:US11673479

    申请日:2007-02-09

    IPC分类号: B01D11/02

    摘要: A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mounted thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdrawn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.

    摘要翻译: 使用具有安装在其上的分配容器,提供具有固体,水和沥青的来自进料流的沥青作为泡沫的方法和装置,所述分离容器安装有下管组件,所述降落管组件具有至少一个下管和与每个下管流体连通的喷嘴, 用于对从分离容器中取出的中间物流进行充气,并将充气中的重新引导回分离容器。