公开(公告)号：US20140246371A1

公开(公告)日：2014-09-04

申请号：US13782206

申请日：2013-03-01

申请人： Jiasheng Cao ,  Ronald M. Matherly ,  Daryl D. McCracken ,  Evan K. Dawson ,  Kushal Seth

发明人： Jiasheng Cao ,  Ronald M. Matherly ,  Daryl D. McCracken ,  Evan K. Dawson ,  Kushal Seth

IPC分类号： C02F1/52 ,  C02F1/66

CPC分类号： C02F1/5236 ,  C02F1/463 ,  C02F1/66 ,  C02F9/00 ,  Y02W10/37

摘要： A process for removing sulfate includes combining a calcium compound and a fluid comprising sulfate to form a composition; adjusting the pH to be greater than or equal to 12; introducing, to the composition, an electrode comprising aluminum or a noble metal; contacting the composition with a material comprising aluminum if aluminum is absent from the electrode; applying a voltage to the electrode to oxidize the aluminum and to form aluminum ions; contacting the composition with the aluminum ions; and forming a precipitate to remove sulfate from the composition, the precipitate having a crystal structure including calcium, aluminum, and sulfate. A system for removing sulfate includes a first container to receive a composition comprising a calcium compound and a fluid comprising sulfate; a first transfer member to communicate the composition to a second container that includes a first electrode of and a second electrode to produce a precipitate of calcium, aluminum, and sulfate; and a second transfer member to communicate the precipitate and composition to a third container.

摘要翻译： 除去硫酸盐的方法包括将钙化合物和包含硫酸盐的流体混合以形成组合物; 调节pH大于或等于12; 向组合物中引入包含铝或贵金属的电极; 如果铝不存在于电极中，则使组合物与包含铝的材料接触; 向电极施加电压以氧化铝并形成铝离子; 使组合物与铝离子接触; 并形成沉淀物以从组合物中除去硫酸盐，该沉淀物具有包括钙，铝和硫酸盐的晶体结构。 用于除去硫酸盐的系统包括：第一容器，其容纳包含钙化合物和包含硫酸盐的流体的组合物; 用于将组合物传递到包括第一电极和第二电极以产生钙，铝和硫酸盐沉淀物的第二容器的第一转移构件; 以及将沉淀物和组合物连通到第三容器的第二转移构件。