一種超微細沸石結晶之製造方法/A process for the production of ultra-fine zeolite crystals and their aggregates

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

10/316,060

專利證號

US6,746,660B1

專利獲證名稱

一種超微細沸石結晶之製造方法/A process for the production of ultra-fine zeolite crystals and their aggregates

專利所屬機關 (申請機關)

國立中央大學

獲證日期

2004/06/08

技術說明

本發明係有關於一種超細微沸石結晶之製造方法，該方法其係至少包含有先準備一已知可 產生沸石之含矽透明水溶液，其中並可含有其他成分如鋁，鈦等金屬元素及有機模板分 子。將此溶液在攝氏25~100下反應一段時間，但是在仍然保持透明尚未產生沸石粒子時， 添加陽離子型界面劑將無機成分凝絮取出，然後將乾燥之有機無機混成物以水蒸氣在攝氏 100~200之溫度下加熱一至三天即得結晶尺寸小於30奈米之奈米沸石。依據製作過程條件 之選擇，產物可以是鬆散之獨立單晶或者是緊密聚集而含有大量細微晶體間孔隙之複晶， 此晶體間孔隙之尺寸介於1~10奈米。 A process for producing ultra-fine zeolite nanocrystals and their aggregates having an intracrystalline void within 1~10 nanometers in size that comprises at least as follows: preparing a transparent silicate-containing aqueous solution, with optional elements as Aluminum, Titanium and organic template molecules, known to produce zeolite; heating the solution under a temperature of 25°~100℃ for a certain period of time while keeping the solution still in a transparent state without forming colloidal zeolite; adding an anionic surfactant to precipitate the inorganic components; forming the dried inorganic-organic hybrid precipitate into a desired shape and then heating the shaped body with steam under a temperature of 100°~200℃ and a relative humidity of 30~85% for 1~3 days to produce ultra-fine zeolite crystals having a size below 30 nanometers, and aggregates of ultra-fine zeolite crystals with a large number of intracrystalline voids whose size is within 1~10 nanometers.

備註

連絡單位 (專責單位/部門名稱)

智權技轉組

連絡電話

03-4227151轉27076

網址