bedahou karimachérif leilabengeddach abdelkaderhamidi fatihasiffert stéphaneaissat aissacazier fabriceaboukais antoine2013-02-262013-02-262012https://dspace.univ-tlemcen.dz/handle/112/1466Zeolite precursorsoxidationmesoporousCrS- 1tolueneSYNTHESIS OF MESOPOROUS CHROMIUM SILICATES MOLECULAR SIEVES IN STRONG ACIDIC MEDIA BY ASSEMBLY OF PREFORMED CRS1 PRECURSORS WITH TRIBLOCK COPOLYMER AND THEIRCATALYTIC ACTIVITY IN THE LIQUID PHASE OXIDATION OF TOLUENE