Invention Application
US20150139898A1 METHOD FOR PRODUCING HIGH SILICA ZEOLITE USING RECOVERED SILICA FILTRATE, AND HIGH SILICA ZEOLITE PRODUCED ACCORDING TO SAID METHOD 有权
使用回收的二氧化硅过滤器生产高硅沸石的方法以及按照方法生产的高硅沸石

METHOD FOR PRODUCING HIGH SILICA ZEOLITE USING RECOVERED SILICA FILTRATE, AND HIGH SILICA ZEOLITE PRODUCED ACCORDING TO SAID METHOD
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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