公开(公告)号：US06767465B1

公开(公告)日：2004-07-27

申请号：US10019667

申请日：2002-01-02

申请人： Jaewon Choung ,  Jozef Szymanski ,  Zhenghe Xu

发明人： Jaewon Choung ,  Jozef Szymanski ,  Zhenghe Xu

IPC分类号： C02F126

CPC分类号： B03B9/005 ,  B03D3/02 ,  B03D3/06 ,  C10L1/322

摘要： A process for recovering fine coals and clarifying water for recycling features with three distinct mechanisms: hydrophobic extraction, electrolyte coagulation, and macromolecular flocculation, which if desired may be integrated into a single stage. The hydrophobic extraction is accomplished using oil to form a coal-in-oil mixture. The process water is clarified using a flocculants, more preferably a combination of coagulant and anionic flocculants. With a well defined reagent addition scheme, this process allows a combustible recovery greater than 88% at an ash content less than 11%, while producing a clean water containing less than 20 ppm suspended solids from a tailing's stream. The coal-in-oil mixture may be used as a fuel for example in coal-firing boilers and power generators.

摘要翻译： 一种用于回收细煤和澄清水以回收特征的方法，其具有三种不同的机理：疏水萃取，电解质凝结和大分子絮凝，如果需要，其可以整合到单一阶段。 使用油完成疏水萃取以形成油包油混合物。 使用絮凝剂，更优选凝结剂和阴离子絮凝剂的组合来澄清工艺用水。 通过明确的试剂添加方案，该方法允许在灰分含量低于11％时可燃回收率大于88％，同时从尾矿流中产生含有少于20ppm悬浮固体的干净水。 油包油混合物可以用作例如燃煤锅炉和发电机中的燃料。