公开(公告)号：US20160185609A1

公开(公告)日：2016-06-30

申请号：US14895481

申请日：2013-12-02

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Xiaojun BAO ,  Yuanyuan YUE ,  Tiesen LI ,  Haiyan LIU ,  Gang SHI ,  Jinbiao YANG

IPC: C01B39/18

CPC classification number: C01B39/18

Abstract: The present invention relates to a synthesis method of zeolite 4A, wherein natural clay mineral, provided as the total silicon source and aluminum source required for molecular sieve synthesis, is activated before they are crystallized under hydrothermal conditions to synthesize zeolite 4A. In the method of the present invention, a simple process is employed and inexpensive raw materials are used, resulting in zeolite 4A having a whiteness of 90% or more and a calcium ion exchange capacity of no less than 310 mg CaCO3/g zeolite. According to the present invention, the range of raw materials for the preparation of molecular sieve materials is broadened, and therefore not only the cost for molecular sieve production is greatly reduced by using the sub-molten salt activation method, but also the greenness in the production process of molecular sieve materials is significantly improved.

Abstract translation: 本发明涉及一种沸石4A的合成方法，其中作为分子筛合成所需的总硅源和铝源提供的天然粘土矿物在水热条件下结晶以合成沸石4A之前被活化。 在本发明的方法中，采用简单的方法，使用廉价的原料，得到沸石4A的白度为90％以上，钙离子交换容量不低于310mg CaCO 3 / g沸石。 根据本发明，用于制备分子筛材料的原料的范围变宽，因此通过使用次熔盐活化方法不仅大大降低了分子筛生产的成本，而且通过使用次熔融盐活化方法， 分子筛材料的生产工艺得到明显改善。