METHOD FOR PREPARING HIERARCHICAL POROUS TITANOSILICATE TS-1 MOLECULAR SIEVE

摘要

Disclosed is a method for preparing a hierarchical porous titanosilicate TS-1 molecular sieve, using a titanate-based polyester polyol as a titanium source. In the method, titanium is attached to a polymer such that the titanium is more difficult to hydrolyze, thereby preventing the precipitation of TiO ₂ and reducing the formation of non-framework titanium; the titanate-based polyester polyol is used as a titanium source and can be further used as a mesoporous template during synthesis; and the obtained TS-1 molecular sieve has a mesoporous structure. The present invention has an important promotional effect of expanding the application of the TS-1 molecular sieve in the field of catalysis.