公开(公告)号：US20150139898A1

公开(公告)日：2015-05-21

申请号：US14603759

申请日：2015-01-23

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Na Young KANG ,  Yong ki PARK ,  Won Choon CHOI ,  Hwi Min SEO ,  Chul Wee LEE

IPC: C01B39/38

CPC classification number: C01B39/38 ,  C01B39/02 ,  C01B39/26 ,  C01P2002/72 ,  C01P2004/03

Abstract: Provided are a method of manufacturing a high silica zeolite using a recovered silica filtrate, and a high silica zeolite manufactured according to the method. To this end, the present invention provides the method of manufacturing the high silica zeolite using the recovered silica filtrate, including manufacturing a solated agglomerated silica from the silica filtrate including a metal salt (step 1); filtering and washing the solated agglomerated silica of step 1 to manufacture a silica cake from which the metal salt is removed (step 2); peptizing the silica cake to manufacture a silica sol (step 3); and manufacturing the high silica zeolite using the silica sol manufactured in step 3 as a silica source (step 4). Further, the present invention provides a high silica zeolite manufactured from a recovered silica filtrate through the manufacturing method and having a Si/Al mole ratio of 5 or more. According to the present invention, it is possible to provide a process of manufacturing a high silica zeolite, in which economic feasibility, a manufacturing cost, and a manufacturing time of process steps are reduced, by reusing a recovered silica filtrate to manufacture the zeolite.

Abstract translation: 提供了使用回收的二氧化硅滤液和根据​​该方法制造的高二氧化硅沸石制造高二氧化硅沸石的方法。 为此，本发明提供使用回收的二氧化硅滤液制造高二氧化硅沸石的方法，包括从包含金属盐的二氧化硅滤液制备溶胶凝聚二氧化硅（步骤1）; 过滤并洗涤步骤1的固化的附聚二氧化硅，以制造除去金属盐的二氧化硅饼（步骤2）; 将硅胶胶化以制造硅溶胶（步骤3）; 并使用步骤3中制造的硅溶胶作为二氧化硅源制造高硅石沸石（步骤4）。 此外，本发明提供了通过制造方法由回收的二氧化硅滤液制备的高硅石沸石，Si / Al摩尔比为5以上。 根据本发明，通过重新利用回收的二氧化硅滤液来制造沸石，可以提供制造经济可行性，制造成本和加工步骤的制造时间的高二氧化硅沸石的制造方法。