Abstract 1. A DEWAXING PROCESS FOR THE SELECTIVE CRACKING OF STRAIGHT-CHAIN HYDROCARBONS AND SLIGHTLY BRANCHED-CHAIN HYDROCARBONS FROM A MIXTURE OF THE SAME WITH COMPOUNDS OF DIFFERENT MOLECULAR SHAPES WHICH COMPRISES CONTACTING SAID MIXTURE WITH A CRYSTALLINE ALUMINOSILICATE HAVING AN X-RAY DIFFRACTION PATTERN AS SET FORTH IN TABLE 1 AND HAVING PORE OPENINGS WHICH ARE OF A GENERALLY ELLIPTICAL SHAPE WHEREIN THE MAJOR AXIS OF SAID ELLIPSE HAS AN EFFECTIVE SIZE UNDER CONVERSION CONDITIONS OF BETWEEN ABOUT 6 AND 9A. UNITS AND THE MINOR AXIS ABOUT 5 A. SO THAT SAID STRAIGHT-CHAIN AND SLIGHTLY BRANCHEDCHAIN HYDROCARBONS ARE CAPABLE OF ENTERING INTO THE INTERNAL PORE STRUCTURE OF THE ALUMINOSILICATE AND BEING CONVERTED, SAID ALUMINOSILICATE HAVING A COMPOSITION, IN TERMS OF OXIDE MOLE RATIOS, AS FOLLOWS: 0.9$0.2 M2/NO:AL2O3:5-100 SIO2:ZH2O WHEREIN M IS A CATION, N IS THE VALENCE OF SAID CATION AND Z IS FROM 0 TO 40.
A DEWAXING PROCESS FOR THE SELECTIVE CRACKING OF STRAIGHT-CHAIN HYDROCARBONS AND SLIGHTLY BRANCHED-CHAIN HYDROCARBONS FROM A MIXTURE OF THE SAME WITH COMPOUNDS OF DIFFERENT MOLECULAR SHAPES WHICH COMPRISES CONTACTING SAID MIXTURE WITH A CRYSTALLINE ALUMINOSILICATE HAVING AN X-RAY DIFFRACTION PATTERN AS SET FORTH IN TABLE 1 AND HAVING PORE OPENINGS WHICH ARE OF A GENERALLY ELLIPTICAL SHAPE WHEREIN THE MAJOR AXIS OF SAID ELLIPSE HAS AN EFFECTIVE SIZE UNDER CONVERSION CONDITIONS OF BETWEEN ABOUT 6 AND 9A. UNITS AND THE MINOR AXIS ABOUT 5 A. SO THAT SAID STRAIGHT-CHAIN AND SLIGHTLY BRANCHEDCHAIN HYDROCARBONS ARE CAPABLE OF ENTERING INTO THE INTERNAL PORE STRUCTURE OF THE ALUMINOSILICATE AND BEING CONVERTED, SAID ALUMINOSILICATE HAVING A COMPOSITION, IN TERMS OF OXIDE MOLE RATIOS, AS FOLLOWS: