Low-aluminum boron beta zeolite

Claim 1

A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide, or mixtures of boron oxide with aluminum oxide, gallium oxide or iron oxide, greater than 10:1 and wherein the amount of aluminum is less than 0.10% by weight and having the X-ray diffraction lines of Table 1(b).

Claim 16

A method for preparing a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide, or mixtures of boron oxide with aluminum oxide, gallium oxide or iron oxide, greater than 10:1 and wherein the amount of aluminum is less than 0.10% by weight and having the X-ray diffraction lines of Table 1(b), comprising: (a) preparing an aqueous mixture containing sources of a diquaternary ammonium ion wherein the diquaternary ammonium ion is derived from a compound of the formula: ##STR5## an oxide selected from boron oxide, and an oxide selected from silicon oxide, germanium oxide, and mixtures thereof, wherein the reaction mixture has a composition in terms of mole ratios and oxides falling in the ranges: ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 10-200 OH/YO.sub.2 0.10-1.0 Q/YO.sub.2 0.05-0.50 M+/YO.sub.2 0.05-0.30 H.sub.2 O/YO.sub.2 15.300 Q/Q+M+ 0.30-0.90 ______________________________________ wherein Y is selected from silicon, germanium, and mixtures thereof, W is boron or mixtures of boron with aluminum, gallium, or iron, Q is a bis(1,4-diAzonia bicyclo[2.2.2]octane) α' ω alkane compound, and M is an alkali metal; (b) maintaining the mixture at a temperature of at least 140° C. until the crystals of said zeolite form; and (c) recovering said crystals.

Claim 17

A method for preparing a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide, or mixtures of boron oxide with aluminum oxide, gallium oxide or iron oxide, greater than 10:1 and wherein the amount of aluminum is less than 0.10% by weight and having the X-ray diffraction lines of Table 1(b), comprising: (a) preparing an aqueous mixture containing sources of a diquaternary ammonium ion wherein the diquaternary ammonium ion is derived from a compound of the formula: ##STR5## an oxide selected from boron oxide, and an oxide selected from silicon oxide, germanium oxide, and mixtures thereof, wherein the reaction mixture has a composition in terms of mole ratios and oxides falling in the ranges: ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 10-200 OH/YO.sub.2 0.10-1.0 Q/YO.sub.2 0.05-0.50 M+/YO.sub.2 0.05-0.30 H.sub.2 O/YO.sub.2 15.300 Q/Q+M+ 0.30-0.90 ______________________________________ wherein Y is selected from silicon, germanium, and mixtures thereof, W is boron or mixtures of boron with aluminum, gallium, or iron, Q is a bis(1,4-diAzonia bicyclo[2.2.2]octane) α' ω alkane compound, and M is an alkali metal; (b) maintaining the mixture at a temperature of at least 140° C. until the crystals of said zeolite form; and (c) recovering said crystals.

Claim 21

A method for preparing a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide, or mixtures of boron oxide with aluminum oxide, gallium oxide or iron oxide, greater than 10:1 and wherein the amount of aluminum is less than 0.10% by weight and having the X-ray diffraction lines of Table 1(b), comprising: (a) preparing an aqueous mixture containing sources of a diquaternary ammonium ion wherein the diquaternary ammonium ion is derived from a compound of the formula: ##STR7## an oxide selected from boron oxide, and an oxide selected from the silicon oxide, germanium oxide, and mixtures thereof, wherein the reaction mixture has a composition in terms of mole ratios and oxides falling in the ranges: ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 10-200 OH/YO.sub.2 0.10-1.0 Q/YO.sub.2 0.05-0.50 M+/YO.sub.2 0.05-0.30 H.sub.2 O/YO.sub.2 15.300 Q/Q+M+ 0.30-0.90 ______________________________________ wherein Y is selected from silicon, germanium, and mixtures thereof, W is boron or mixtures of boron with aluminum, gallium, or iron, Q is a bis(1,4-diAzonia bicyclo[2.2.2]octane) α' ω alkane compound, and M is an alkali metal; (b) maintaining the mixture at a temperature of at least 140° C. until the crystals of said zeolite form; and (c) recovering said crystals.

Claim 22

A method for preparing a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide, or mixtures of boron oxide with aluminum oxide, gallium oxide or iron oxide, greater than 10:1 and wherein the amount of aluminum is less than 0.10% by weight and having the X-ray diffraction lines of Table 1(b), comprising: (a) preparing an aqueous mixture containing sources of a diquaternary ammonium ion wherein the diquaternary ammonium ion is derived from a compound of the formula: ##STR7## an oxide selected from boron oxide, and an oxide selected from the silicon oxide, germanium oxide, and mixtures thereof, wherein the reaction mixture has a composition in terms of mole ratios and oxides falling in the ranges: ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 10-200 OH/YO.sub.2 0.10-1.0 Q/YO.sub.2 0.05-0.50 M+/YO.sub.2 0.05-0.30 H.sub.2 O/YO.sub.2 15.300 Q/Q+M+ 0.30-0.90 ______________________________________ wherein Y is selected from silicon, germanium, and mixtures thereof, W is boron or mixtures of boron with aluminum, gallium, or iron, Q is a bis(1,4-diAzonia bicyclo[2.2.2]octane) α' ω alkane compound, and M is an alkali metal; (b) maintaining the mixture at a temperature of at least 140° C. until the crystals of said zeolite form; and (c) recovering said crystals.