公开(公告)号：US5804077A

公开(公告)日：1998-09-08

申请号：US700682

申请日：1996-08-16

申请人： Russell G. Smith ,  Jonathan R. Spence

发明人： Russell G. Smith ,  Jonathan R. Spence

IPC分类号： B01D21/01 ,  C02F1/52

CPC分类号： B01D21/01

摘要： Calcium sulphate is added to desanded tailings derived from a hot water extraction process for recovering bitumen from oil sand. Enough calcium sulphate (100 to 200 ppm) is added to remove naphthenates and sulfonates from the aqueous phase. As a result, the settling rate of the fines in the tailings is accelerated.

摘要翻译： 将硫酸钙加入来自于从油砂中回收沥青的热水提取方法的脱盐尾矿中。 加入足够的硫酸钙（100〜200ppm）以从水相中除去环烷酸盐和磺酸盐。 结果，尾矿罚款的结算速度加快。

公开(公告)号：US06391190B1

公开(公告)日：2002-05-21

申请号：US09262061

申请日：1999-03-04

申请人： Jonathan R. Spence ,  Kevin McDowell ,  Mike P. Wagner ,  Sean Sanders

发明人： Jonathan R. Spence ,  Kevin McDowell ,  Mike P. Wagner ,  Sean Sanders

IPC分类号： C10G104

CPC分类号： C10G1/047

摘要： Aerated bitumen froth obtained from oil sands must be deaerated so that it can be pumped through a pipeline. Mechanical shearing is effective to deaerate bitumen froth to an air content of below 10 volume percent. Mechanical deaeration of bitumen froth can be achieved either by passing the froth through a confining passageway and shearing the froth with an impeller while it is in the passageway or temporarily retaining the aerated froth in a tank and circulating it repeatedly through a pump.

摘要翻译： 从油砂获得的充气沥青泡沫必须脱气，以便可以通过管道泵送。 机械剪切有效地将沥青泡沫脱气至低于10体积％的空气含量。 沥青泡沫的机械脱气可以通过将泡沫通过限制通道并通过叶轮在通道中剪切泡沫或者将充气泡沫暂时保持在罐中并将其重复循环通过泵来实现。