ZEOLITE OF THE MTW TYPE AND METHOD FOR ITS PREPARATION

摘要

PCT No. PCT/FR91/01029 Sec. 371 Date Aug. 20, 1992 Sec. 102(e) Date Aug. 20, 1992 PCT Filed Dec. 18, 1991 PCT Pub. No. WO92/11203 PCT Pub. Date Jul. 9, 1992.The invention relates to a synthetic crystalline zeolite of the MTW type, characterized by: a) the following approximate general formula: M2/nO, Al2O3, xSiO2 in which M represents a metal cation and/or proton, n is the valency of M and x is a number between 14 and 800, b) a X-ray diagram shown in table I of the description, c) a fluorine content between approximately 0.005 and 2% by weight, said zeolite having been synthesized in a fluoride medium and accompanied by stirring.