公开(公告)号：US20160207787A1

公开(公告)日：2016-07-21

申请号：US14902423

申请日：2013-12-02

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Haiyan LIU ,  Xinyan SUN ,  Xiaojun BAO ,  Gang SHI

IPC: C01B39/26

CPC classification number: C01B39/265 ,  C01B39/26

Abstract: The present invention provides a method for preparing a mordenite, which is a method for preparing the mordenite through a hydrothermal crystallization by using natural aluminosilicate minerals as total silicon sources and total aluminum sources, comprising the steps of: subjecting the natural aluminosilicate minerals to activation treatment which is an activation by sub-molten salt and an activation by thermal treatment; selecting and mixing the activated natural aluminosilicate minerals according to the silicon-to-aluminum ratio of the targeted mordenite, adding thereto deionized water, sodium hydroxide, crystal seed, a templating agent to obtain a reaction mixture; adjusting the reaction mixture by using an inorganic acid to have a pH of 10-13, and then aging it at 40-80° C. for 6-24 hours; and subjecting the aged reaction mixture to hydrothermal crystallization, and then filtering, washing, drying and calcinating the crystallized product to obtain the mordenite. The method for preparing a mordenite provided in the present invention enlarges the sources of raw materials for a molecular sieve, has a low cost and a simple process route, and can largely reduce the cost for synthesizing a molecular sieve.

Abstract translation: 本发明提供一种制备丝光沸石的方法，其是通过使用天然硅铝酸盐矿物作为总硅源和总铝源通过水热结晶制备丝光沸石的方法，包括以下步骤：将天然硅铝酸盐矿物进行活化处理 这是通过次熔盐的活化和通过热处理的活化; 根据目标丝光沸石的硅 - 铝比选择和混合活化的天然硅铝酸盐矿物，加入去离子水，氢氧化钠，晶体种子，模板剂以获得反应混合物; 通过使用无机酸调节反应混合物以使pH为10-13，然后在40-80℃下老化6-24小时; 并对老化的反应混合物进行水热结晶，然后过滤，洗涤，干燥和煅烧结晶产物，得到丝光沸石。 本发明中提供的丝光沸石的制备方法扩大了分子筛原料的来源，成本低，工艺路线简单，能大大降低合成分子筛的成本。