Process for the microwave induced preparation of crystalline microporous titanium silicalite

A process for the microwave induced preparation of a crystalline, microporous titanium silicalite having the chemical formula:

• xTiO2·(1−x)SiO2, wherein x is greater than or equal to 0.043 and less than or equal to 0.11, an x-ray diffraction pattern as follows:
• 2θ ± 0.05 Relative Intensity 7.82 vs 8.75 ms 13.20 w 13.98 w 14.74 mw 15.62 w 15.98 w 16.45 w 17.72 w 17.64 w 17.80 w 19.22 w 20.34 mw 20.82 mw 23.12 vs 24.28 ms 24.51 ms 24.40 ms 26.05 w 26.99 w 28.04 w 29.26 w 29.99 mw 45.12 w 45.51 w where vs = very strong s = strong m = medium w = weak
• and an infrared absorption spectra as follows:
• cm−1 Relative Intensity 456 S 544 MS 800 W 960 W 1120 VS 1216 S where VS = very strong S = strong M = medium W = weak
• said process comprising
• heating a gel comprising a mixture containing (a) a source of silicon oxide, (b) a source of titanium oxide, (c) tetrapropyl ammonium hydroxide, and (d) water by microwave irradiation at autogenous pressure in the range of 10-15 bar and at a temperature in the range of 100 to 200° C. for a time period in the range of 30-120 minutes to obtain the titanium silicalite,
• calcining the titanium silicate at a temperature of greater than or equal to 300° C.