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1. 发明申请

US20090321326A1 PRIMARY FROTH RECYCLE 有权
标题翻译：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
申请人： JONATHAN SPENCE , TEDDY KWONG , KAMAL HAMMAD , SAMSON NG , ROBERT SIY , JASON SCHAAN
发明人： JONATHAN SPENCE , TEDDY KWONG , KAMAL HAMMAD , SAMSON NG , ROBERT SIY , JASON SCHAAN
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。

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