Process for the preparation of zeolites TS-1

Process for preparing zeolites TS-1 which comprises subjecting a mixture containing a silicon source, unafuente titanium and tetrapropylammoniumhydroxide, having the following composition in molar ratios: Si / Ti> = 35 to 150 TPA-OH / Si > = 0.2 to 0.5 wherein TPA> = tetrapropylammonium H2O / Si> = greater than or equal to 4 and less H2O / Ti> = greater than or equal to 320 and less than or equal to 600, a treatment hydrothermal at autogenous pressure, at a temperature ranging from 190 to 230 ° C and for a periodof time between 0.5 and 10 hours, in the absence of alkali metal.