Patent ID: 7563432

Claim:
A solid crystalline COK-7 with a chemical composition expressed as the anhydrous base in terms of moles of oxides defined by the following general formula: XO 2 : mY 2 O 3 , in which X represents one or more tetravalent element(s) selected from silicon, tin and titanium, Y represents at least one trivalent element selected from aluminium, boron, iron, indium and gallium, m representing the number of moles of Y 2 O 3 where m is in the range 0 to 300, said solid having an X ray diffraction diagram in the calcined form comprising at least the following peaks for the values of d hkl : d hkl (Å) 2 theta (°) I/I 0 11.60 7.62 m-vs 10.80 8.17 w-mw 10.02 8.82 w-mw 5.80 15.26 w 4.34 20.41 w 4.17 21.25 vs 3.86 23.01 m-s 2.83 31.54 vw-w in which: vs = very strong; m = medium; w = weak; s = strong; mw = medium weak; vw = very weak.