Invention Grant
- Patent Title: Method for producing high silica zeolite using recovered silica filtrate, and high silica zeolite produced according to said method
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Application No.: US14603759Application Date: 2015-01-23
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Publication No.: US09604851B2Publication Date: 2017-03-28
- Inventor: Na Young Kang , Yong ki Park , Won Choon Choi , Hwi Min Seo , Chul Wee Lee
- Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
- Applicant Address: KR Daejeon-si
- Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
- Current Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
- Current Assignee Address: KR Daejeon-si
- Agency: Ladas & Parry LLP
- Priority: KR10-2012-0081167 20120725
- Main IPC: C01B39/02
- IPC: C01B39/02 ; C01B39/38 ; C01B39/26

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.
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