Method for the production of a titanium-containing zeolite
First Claim
1. Method for the production of a titanium-containing zeolite by a) combining a hydrolyzable silicon compound and a hydrolyzable titanium compound, b) adding a basic quaternary ammonium compound in an aqueous medium to the mixture from a) and hydrolysing the reaction mixture at a temperature in the range from 0°
- C. to 100°
C. to form a synthesis sol, then c) heating the synthesis sol to a temperature in the range from 150°
C. to 190°
C. and d) crystallizing the synthesis sol at this temperature, characterized in that the heating-up time in step c) is less than 240 min.
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Abstract
The present invention concerns a method for the production of a titanium-containing zeolite by: (a) combining a hydrolyzable silicon compound and a hydrolyzable titanium compound; (b) adding a basic quaternary ammonium compound in an aqueous medium to the mixture from (a) and hydrolysing the reaction mixture at a temperature in the range from 0° C. to 100° C. to form a synthesis sol; then (c) heating the synthesis sol to a temperature in the range from 150° C. to 190° C.; and (d) crystallizing the synthesis sol at this temperature, characterized in that the heating-up time in step (c) is less than 240 min.
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Citations
8 Claims
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1. Method for the production of a titanium-containing zeolite by
a) combining a hydrolyzable silicon compound and a hydrolyzable titanium compound, b) adding a basic quaternary ammonium compound in an aqueous medium to the mixture from a) and hydrolysing the reaction mixture at a temperature in the range from 0° - C. to 100°
C. to form a synthesis sol, thenc) heating the synthesis sol to a temperature in the range from 150°
C. to 190°
C. andd) crystallizing the synthesis sol at this temperature, characterized in that the heating-up time in step c) is less than 240 min. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- C. to 100°
Specification