T. Blasco et al., UNSEEDED SYNTHESIS OF AL-FREE TI-BETA ZEOLITE IN FLUORIDE MEDIUM - A HYDROPHOBIC SELECTIVE OXIDATION CATALYST, Chemical communications, (20), 1996, pp. 2367-2368
Al-free Ti-beta zeolite spontaneously nucleates and grows in a reactio
n mixture containing tetraethylammonium and fluoride ions at near neut
ral pH, and shows an enhanced crystallinity and thermal and hydrotherm
al stability as well as a significant hydrophobic character.