公开(公告)号：WO2015051444A1

公开(公告)日：2015-04-16

申请号：PCT/CA2014/000728

申请日：2014-10-06

Applicant: ELECTRO-KINETIC SOLUTIONS INC.

Inventor： BEATTIE, Bruce S. ,  GARCIA, Paul ,  KIMZEY, Doug ,  HARRIS, Ben ,  PARROTT, Robert C. ,  MICAK, James

IPC: C02F1/461 ,  B01D17/06 ,  B03B9/02 ,  C10G1/04

CPC classification number: B01D17/06 ,  C02F1/4696 ,  C02F2103/10 ,  C02F2201/46125 ,  C02F2201/4613

Abstract: There is a method of facilitating the consolidation of fine tailings through the application of an electrical current. The fine tailings include a combination of at least some water and some clay particles. Electrodes are placed into contact with the fine tailings. An AC voltage with a DC offset is applied to the electrodes to separate water from the clay particles and to induce movement of the separated water to a collection area. The separated clay particles can consolidate more readily than unseparated clay particles. In an embodiment, the fine tailings are mixed fine oil sands extraction tailings which include residual hydrocarbons. In an embodiment, the application of an AC voltage with a DC offset across the electrodes includes applying an AC voltage of about 1 V/cm and a DC offset of about ½ V/cm.

Abstract translation: 有一种通过施加电流促进细尾矿固结的方法。 细尾矿包括至少一些水和一些粘土颗粒的组合。 电极与精细尾矿接触。 将具有DC偏移的AC电压施加到电极以将粘土颗粒分离出水并引导分离的水移动到收集区域。 分离的粘土颗粒可以比未分离的粘土颗粒更容易地固结。 在一个实施方案中，细尾矿是包括残余烃的混合精细油砂提取尾矿。 在一个实施例中，跨越电极施加具有DC偏移的AC电压包括施加约1V / cm的AC电压和约1/2V / cm的DC偏移。