METHOD FOR MODIFYING TITANIUM SILICON MOLECULAR SIEVES

Title:

METHOD FOR MODIFYING TITANIUM SILICON MOLECULAR SIEVES

Document Type and Number:

WIPO Patent Application WO/2013/063894

Kind Code:

A1

Abstract:

The present invention belongs to the technical field of inorganic chemical synthesis, and relates to a method for modifying titanium silicon molecular sieves. The method is characterized in firstly pre-treating TS-1, then modifying the pre-treated TS-1 with a mixed liquid containing TPAOH and metal salts, and finally post-treating the modified TS-1. The method for modifying titanium silicon molecular sieves in the present invention is widely applicable, suitable for TS-1 molecular sieves synthetized by a variety of methods, especially TS-1 molecular sieves synthetized by an inexpensive system, and can improve the catalytic performance of TS-1 molecular sieves for propylene epoxidation reactions both in the gas phase and the liquid phase.

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Inventors:

GUO HONGCHEN (CN)
LIU GUANGHONG (CN)
LIU LING (CN)
SU JI (CN)

Application Number:

PCT/CN2012/072500

Publication Date:

May 10, 2013

Filing Date:

March 18, 2012

Export Citation:

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Assignee:

UNIV DALIAN TECH (CN)
GUO HONGCHEN (CN)
LIU GUANGHONG (CN)
LIU LING (CN)
SU JI (CN)

International Classes:

C01B39/08; B01J29/89; C07D305/06

Foreign References:

CN101786638A	2010-07-28
CN101757945A	2010-06-30
CN101850986A	2010-10-06
CN101537371A	2009-09-23

Other References:

ZHOU, JUNCHENG: "Direct Synthesis of Hydrogen Peroxide via Hydrogen-Oxygen Plasma and Its Use in the Gas-Phase Epoxidation of Propylene", SCIENCE-ENGINEERING (A), CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, 15 May 2008 (2008-05-15)

Attorney, Agent or Firm:

PATENT CENTER OF DUT (CN)
大连理工大学专利中心 (CN)

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Claims:

Previous Patent: PROCESS FOR MODIFYING TS-1 BASED ON MIXED SOLUTION OF QUATERNARY AMMONIUM SALT AND INORGANIC BASE

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