Process for preparing crystalline aluminosilicate zeolites using a carboxylic acid

Claim 2

A process for preparing a crystalline aluminosilicate zeolite, which process comprises reacting an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and a single organic template selected from the group consisting of benzoic acid, phthalic acid, terephthalic acid, salicyclic acid, para-hydroxybenzoic acid, toluic acid, and alkali metal salts thereof, and the composition, in terms of mole ratios, of said reaction mixture being as follows: ______________________________________ SiO.sub.2 Al.sub.2 O.sub.3 above 20 H.sub.2 O/SiO.sub.2 5 to 100 OH.sup.- /SiO.sub.2 0.05 to 0.40 A/Al.sub.2 O.sub.3 0.10 to 200 ______________________________________ wherein A represents said organic compound, said process being conducted at a crystallization temperature of 140°-180° C. to form a crystalline aluminosilicate zeolite having the following X-ray diffraction pattern: ______________________________________ d(Å) 100 I/I.sub.o ______________________________________ 11.2 ± 002 S 10.1 ± 0.2 S 9.8 ± 0.2 M 6.37 ± 0.1 W 6.00 ± 0.1 W 5.71 ± 0.1 W 5.58 ± 0.1 W 4.37 ± 0.08 W 4.27 ± 0.08 W 3.86 ± 0.08 VS 3.82 ± 0.02 VS 3.75 ± 0.08 S 3.72 ± 0.08 S 3.66 ± 0.05 M 3.00 ± 0.05 M 2.00 ± 0.05 W ______________________________________ wherein VS=very strong, S=strong, M=medium strength and W=weak.

Claim 3

A process according to claim 1, in which said organic template is a compound that is water soluble in its alkali metal salt form.

Claim 4

A process according to claim 1, in which said organic template is salicylic acid.

Claim 5

A process according to claim 1, in which said process requires from 5 hours to 30 days for completion.

Claim 6

A process for preparing a crystalline aluminosilicate zeolite, which process comprises reacting an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and a single organic template, selected from the group consisting of benzoic acid, phthalic acid, terephthalic acid, salicyclic acid, para-hydroxybenzoic acid, toluic acid, and alkali metal salts thereof, and the composition, in terms of mole ratios, of said reaction mixture being as follows: ______________________________________ SiO.sub.2 Al.sub.2 O.sub.3 15 to 75 H.sub.2 O/SiO.sub.2 10 to 50 OH.sup.- /SiO.sub.2 0.14 to 0.40 A/Al.sub.2 O.sub.3 0.10 to 50 ______________________________________ wherein A represents said organic compound, said process being conducted at a crystallization temperature of 140°-180° C. to form a crystalline aluminosilicate zeolite having the following X-ray diffraction pattern: ______________________________________ d(Å) 100 I/I.sub.o ______________________________________ 13.6 ± 0.2 M 10.2 ± 0.2 W 9.0 ± 0.2 S 6.56 ± 0.1 S 6.40 ± 0.1 S 6.05 ± 0.1 W 5.80 ± 0.1 M 4.52 ± 0.08 M 3.99 ± 0.08 S 3.83 ± 0.08 W 3.76 ± 0.08 W 3.53 ± 0.05 W 3.46 ± 0.05 VS 3.38 ± 0.05 S 3.28 ± 0.05 W 3.20 ± 0.05 S 3.15 ± 0.05 W 2.89 ± 0.05 M 2.51 ± 0.05 W ______________________________________ wherein VS=very strong, S=strong, M=medium strength and W=weak.

Claim 7

A process for preparing a crystalline aluminosilicate zeolite, which process comprises reacting an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and a single organic template, selected from the group consisting of benzoic acid, phthalic acid, terephthalic acid, salicyclic acid, para-hydroxybenzoic acid, toluic acid, and alkali metal salts thereof, and the composition, in terms of mole ratios, of said reaction mixture being as follows: ______________________________________ SiO.sub.2 Al.sub.2 O.sub.3 15 to 75 H.sub.2 O/SiO.sub.2 10 to 50 OH.sup.- /SiO.sub.2 0.14 to 0.40 A/Al.sub.2 O.sub.3 0.10 to 50 ______________________________________ wherein A represents said organic compound, said process being conducted at a crystallization temperature of 140°-180° C. to form a crystalline aluminosilicate zeolite having the following X-ray diffraction pattern: ______________________________________ d(Å) 100 I/I.sub.o ______________________________________ 13.6 ± 0.2 M 10.2 ± 0.2 W 9.0 ± 0.2 S 6.56 ± 0.1 S 6.40 ± 0.1 S 6.05 ± 0.1 W 5.80 ± 0.1 M 4.52 ± 0.08 M 3.99 ± 0.08 S 3.83 ± 0.08 W 3.76 ± 0.08 W 3.53 ± 0.05 W 3.46 ± 0.05 VS 3.38 ± 0.05 S 3.28 ± 0.05 W 3.20 ± 0.05 S 3.15 ± 0.05 W 2.89 ± 0.05 M 2.51 ± 0.05 W ______________________________________ wherein VS=very strong, S=strong, M=medium strength and W=weak.

Claim 8

A process according to claim 5, in which said organic template is a compound that is water soluble in its alkali metal salt form.

Claim 9

A process according to claim 5, in which said organic template is salicylic acid.

Claim 10

A process according to claim 5, in which said process requires from 5 hours to 30 days for completion.