公开(公告)号：US20140301942A1

公开(公告)日：2014-10-09

申请号：US14355157

申请日：2012-03-18

Applicant: Dalian University of Technology

Inventor： Hongchen Guo ,  Ji Su ,  Guanghong Liu

IPC: B01J29/04

CPC classification number: B01J29/041 ,  B01J29/035 ,  B01J29/89 ,  B01J2229/183 ,  B01J2229/34 ,  B01J2229/38 ,  C01B37/005 ,  C01B39/085 ,  C07D301/03 ,  C07D303/04

Abstract: This invention belongs to the technical field of inorganic chemical synthesis, relating to a modification method for titanium-silicalite zeolite (TS-1). The feature of the invention is pretreating the TS-1, after that the TS-1 is modified by the mixture of quaternary ammonium salts and inorganic base. The quaternary ammonium salts mentioned above include tetrapropylammonium fluoride, tetrapropylammonium chloride, tetrapropylammonium iodide and their mixture. The inorganic base include that LiOH, NaOH and KOH and their mixture. TS-1 after the modification is aftertreated at last. The benefit of the invention is universal capable to modify the TS-1 synthesized by any method, specially the TS-1 with low cost method, the modification can enhance the catalytic performance on both gas and liquid phase epoxidation of propylene.

Abstract translation: 本发明属于无机化学合成技术领域，涉及钛硅沸石（TS-1）的改性方法。 本发明的特征是预处理TS-1，之后TS-1被季铵盐和无机碱的混合物改性。 上述季铵盐包括四丙基氟化铵，四丙基氯化铵，四丙基碘化铵及其混合物。 无机碱包括LiOH，NaOH和KOH及其混合物。 修改后的TS-1最终被后处理。 本发明的优点是能够通过任何方法，特别是TS-1以低成本的方法改性TS-1，这种改性可以提高丙烯气相和环氧化的催化性能。