| 发明名称 | Oil recovery method | ||
| 摘要 | The invention relates to a method for the recovery of oil from an aqueous solution containing oil and solids, as well as to the use of products obtained by this method. The method of the invention comprises at least the following steps of: Adjusting the oil- and solids-containing aqueous solution to a pH which is acidic, separating an oil- and solids-containing fraction from the acidic aqueous solution with an separation agent which is hydrophilic or assumes a hydrophilic character in response to water, recovering the oil- and solids-containing fraction separated by means of said separation agent, extracting oil away from the solids with a water-insoluble extraction agent, and recovering the oil-containing water-insoluble extraction agent. | ||
| 申请公布号 | US9115317(B2) | 申请公布日期 | 2015.08.25 |
| 申请号 | US201213399186 | 申请日期 | 2012.02.17 |
| 申请人 | Neste Oil Oyj | 发明人 | Mujunen Miia;Pastinen Ossi;Lehtomaki Ilkka;Laakso Simo;Koskinen Perttu |
| 分类号 | B01D11/04;C02F1/26;C02F1/66;C10G1/04;C10G17/00;C10G53/04;C11B1/10;C11B3/04;C10G31/09;C10G53/10;C10L1/02;C10L1/08 | 主分类号 | B01D11/04 |
| 代理机构 | Andrus Intellectual Property Law, LLP | 代理人 | Andrus Intellectual Property Law, LLP |
| 主权项 | 1. A method for the recovery of oil from an aqueous solution containing oil and solids, the method comprising: adjusting an oil- and solids-containing aqueous solution to an acidic pH, separating an oil- and solids-containing fraction from the acidic aqueous solution with a separation agent which comprises particulate matter that is hydrophilic or assumes a hydrophilic character in response to water, wherein said separation agent is sand, having a grain size of 0.05 to 4 mm, recovering the oil- and solids-containing fraction separated by means of said separation agent, extracting oil away from solids with a water-insoluble extraction agent, and recovering the oil-containing water-insoluble extraction agent. | ||
| 地址 | Espoo FI | ||