Title:
PROCESS FOR MODIFYING TS-1 BASED ON MIXED SOLUTION OF QUATERNARY AMMONIUM SALT AND INORGANIC BASE
Document Type and Number:
WIPO Patent Application WO/2013/063893
Kind Code:
A1
Abstract:
The present invention relates to the technical field of inorganic chemical synthesis, and relates to a process for modifying a titanium silicalite molecular sieve. The process is characterized by firstly pre-treating TS-1; then modifying the pre-treated TS-1 with a mixed solution containing a quaternary ammonium salt and an inorganic base, with the quaternary ammonium salt being tetrapropyl ammonium fluoride, tetrapropyl ammonium chloride, tetrapropyl ammonium bromide, tetrapropyl ammonium iodide, and a mixture thereof, and the inorganic base being lithium hydroxide, sodium hydroxide, potassium hydroxide, and a mixture thereof; and finally post-treating the modified TS-1. The process for modifying a titanium silicalite molecular sieve of the present invention has general applicability, is suitable for TS-1 molecular sieves synthesized by various processes, especially TS-1 molecular sieves synthesized in an inexpensive system, while the process can also increase the catalytic performance of the TS-1 molecular sieve for propylene epoxidation in a gas phase and liquid phase.
Inventors:
GUO HONGCHEN (CN)
SU JI (CN)
LIU GUANGHONG (CN)
SU JI (CN)
LIU GUANGHONG (CN)
Application Number:
PCT/CN2012/072499
Publication Date:
May 10, 2013
Filing Date:
March 18, 2012
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
GUO HONGCHEN (CN)
SU JI (CN)
LIU GUANGHONG (CN)
GUO HONGCHEN (CN)
SU JI (CN)
LIU GUANGHONG (CN)
International Classes:
C01B39/08; B01J29/89; C07D305/06
Foreign References:
| CN101850986A | 2010-10-06 | |||
| CN101757945A | 2010-06-30 | |||
| CN101786638A | 2010-07-28 | |||
| CN101850985A | 2010-10-06 | |||
| CN1775360A | 2006-05-24 |
Attorney, Agent or Firm:
MEI, Hongyu (CN)
梅洪玉 (CN)
梅洪玉 (CN)
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Claims: