Molecular sieve SSZ-105

Abstract

A new crystalline molecular sieve designated SSZ-105 is disclosed. SSZ-105 is synthesized using N,N-dimethylpiperidinium cations as a structure directing agent. SSZ-105 is a disordered aluminosilicate molecular sieve comprising at least one intergrown phase of an ERI framework type molecular sieve and an LEV framework type molecular sieve.

Claims

1. An aluminosilicate molecular sieve composition having a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of from 10 to 50 comprising at least one intergrown phase comprising an ERI framework type molecular sieve and an LEV framework type molecular sieve.

2. The molecular sieve composition of claim 1, having a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of from 10 to 25.

3. The molecular sieve composition of claim 1, wherein the ERI framework type molecular sieve is present in the at least one intergrown phase in a proportion to the LEV framework type molecular sieve of from 5% to 95%, as determined by DIFFaX analysis.

4. The molecular sieve composition of claim 1, wherein the ERI framework type molecular sieve is present in the at least one intergrown phase in a proportion to the LEV framework type molecular sieve of from 10% to 90%, as determined by DIFFaX analysis.

5. The molecular sieve composition of claim 1, wherein the ERI framework type molecular sieve is present in the at least one intergrown phase in a proportion to the LEV framework type molecular sieve of from 20% to 80%, as determined by DIFFaX analysis.

6. The molecular sieve composition of claim 1, wherein the ERI framework type molecular sieve is present in the at least one intergrown phase in a proportion to the LEV framework type molecular sieve of from 30% to 70%, as determined by DIFFaX analysis.

7. The molecular sieve composition of claim 1, wherein the ERI framework type molecular sieve is present in the at least one intergrown phase in a proportion to the LEV framework type molecular sieve of from 40% to 60%, as determined by DIFFaX analysis.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a powder X-ray diffraction (XRD) pattern of the as-synthesized molecular sieve prepared in Example 1.

(2) FIG. 2 is a Scanning Electron Micrograph (SEM) image of the as-synthesized molecular sieve prepared in Example 1.

(3) FIG. 3 is a plot of several DIFFaX-generated simulated XRD patterns and a powder XRD pattern of the calcined form of the molecular sieve prepared in Example 1.

(4) FIG. 4 is a SEM image of the as-synthesized molecular sieve prepared in Example 2.

(5) FIG. 5 is a plot of several DIFFaX-generated simulated XRD patterns and a powder XRD pattern of the calcined form of the molecular sieve prepared in Example 2.

(6) FIG. 6 is a SEM image of the as-synthesized molecular sieve prepared in Example 3.

(7) FIG. 7 is a plot of several DIFFaX-generated simulated XRD patterns and a powder XRD pattern of the calcined form of the molecular sieve prepared in Example 3.

(8) FIG. 8 is a SEM image of the as-synthesized molecular sieve prepared in Example 4.

(9) FIG. 9 is a plot of several DIFFaX-generated simulated XRD patterns and a powder XRD pattern of the calcined form of the molecular sieve prepared in Example 4.

(10) FIG. 10 is a SEM image of the as-synthesized molecular sieve prepared in Example 5.

(11) FIG. 11 is a plot of several DIFFaX-generated simulated XRD patterns and a powder XRD pattern of the calcined form of the molecular sieve prepared in Example 5.

DETAILED DESCRIPTION

(12) Introduction

(13) The following terms will be used throughout the specification and will have the following meanings unless otherwise indicated.

(14) The term framework type is used in the sense described in the Atlas of Zeolite Framework Types, Sixth Revised Edition, Elsevier, 2007.

(15) As used herein, the numbering scheme for the Periodic Table Groups is as disclosed in Chem. Eng. News, 63(5), 26-27 (1985).

(16) Intergrown molecular sieve phases are disordered planar intergrowths of molecular sieve frameworks. Reference is directed to the Catalog of Disordered Zeolite Structures, 2000 Edition, published by the Structure Commission of the International Zeolite Association and to the Collection of Simulated XRD Powder Patterns for Zeolites, Fifth Revised Edition, Elsevier, 2007, published on behalf of the Structure Commission of the International Zeolite Association for a detailed explanation on intergrown molecular sieve phases.

(17) The molecular sieves described herein are disordered planar intergrowths of end-member structures ERI and LEV. Both of these two framework types belong to the group that has double 6-rings (d6r) as secondary building units. Intergrown ERI/LEV molecular sieves comprise regions of ERI framework type sequences and regions of LEV framework type sequences. Each change from an ERI to an LEV framework type sequence results in a stacking fault.

(18) In preparing molecular sieve SSZ-105, an N,N-dimethylpiperidinium cation is used as a structure directing agent (SDA), also known as a crystallization template. The SDA useful for making SSZ-105 has the following structure (1):

(19) ##STR00001##

(20) The SDA cation is associated with anions which may be any anion that is not detrimental to the formation of SSZ-105. Representative anions include elements from Group 17 of the Periodic Table (e.g., fluoride, chloride, bromide and iodide), hydroxide, sulfate, tetrafluoroboroate, acetate, carboxylate, and the like.

(21) Reaction Mixture

(22) In general, molecular sieve SSZ-105 is prepared by: (a) preparing a reaction mixture containing (1) at least one source of silicon oxide; (2) at least one source of aluminum oxide; (3) at least one source of a Group 1 metal (M), wherein M is selected from the group consisting of potassium and combinations of sodium and potassium; (4) hydroxide ions; (5) N,N-dimethylpiperidinium cations; and (6) water; and (b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the molecular sieve.

(23) The composition of the reaction mixture from which the molecular sieve is formed, in terms of mole ratios, is identified in Table 1 below:

(24) TABLE-US-00002 TABLE 1 Components Broad Exemplary SiO.sub.2/Al.sub.2O.sub.3 10 to 100 15 to 80 M/SiO.sub.2 0.05 to 1.00 0.10 to 0.30 Q/SiO.sub.2 0.05 to 0.70 0.20 to 0.45 OH/SiO.sub.2 0.10 to 1.00 0.30 to 0.80 H.sub.2O/SiO.sub.2 10 to 100 15 to 60
wherein compositional variables M and Q are as described herein above.

(25) Sources useful herein for silicon oxide include fumed silica, precipitated silicates, silica hydrogel, silicic acid, colloidal silica, tetra-alkyl orthosilicates (e.g., tetraethyl orthosilicate), and silica hydroxides.

(26) Sources useful herein for aluminum oxide include aluminates, alumina, and aluminum compounds (e.g., aluminum chloride, aluminum hydroxide, and aluminum sulfate), kaolin clays, and other zeolites (e.g., zeolite Y).

(27) In the present synthesis method, the Group 1 metal (M) is selected from the group consisting of potassium and combinations of sodium and potassium. The sodium source may be sodium hydroxide. The potassium source may be potassium hydroxide. In embodiments when the Group 1 metal (M) is a mixture of sodium and potassium, the molar ratio of sodium (m.sub.1) divided by the molar ratio of potassium (m.sub.2) in the reaction mixture is less than or equal to 2.0; or less than or equal to 1.0; preferably, in the range from 0.1 to 2.0; and conveniently, in the range from 0.1 to 0.5.

(28) Optionally, the reaction mixture may also include seeds of a molecular sieve material, such as SSZ-105 crystals from a previous synthesis, in an amount of from 0.1 to 10 wt. % or from 0.5 to 5 wt. % of the reaction mixture.

(29) For each embodiment described herein, the molecular sieve reaction mixture can be supplied by more than one source. Also, two or more reaction components can be provided by one source.

(30) The reaction mixture can be prepared either batch wise or continuously. Crystal size, morphology and crystallization time of the molecular sieve described herein can vary with the nature of the reaction mixture and the crystallization conditions.

(31) Crystallization and Post-Synthesis Treatment

(32) Crystallization of the molecular sieve disclosed herein can be carried out under either static, tumbled or stirred conditions in a suitable reactor vessel, such as for example polypropylene jars or Teflon-lined or stainless steel autoclaves, at a temperature of from 125 C. to 200 C. (e.g., from 140 C. to 180 C.) for a time sufficient for crystallization to occur at the temperature used, e.g., from 1 day to 28 days.

(33) Once the molecular sieve crystals have formed, the solid product is separated from the reaction mixture by standard mechanical separation techniques such as centrifugation or filtration. The crystals are water-washed and then dried to obtain the as-synthesized molecular sieve crystals. The drying step is typically performed at a temperature of less than 200 C.

(34) As a result of the crystallization process, the recovered crystalline molecular sieve product contains within its pore structure at least a portion of the structure directing agent used in the synthesis.

(35) The structure directing agent is typically at least partially removed from the molecular sieve by calcination before use. Calcination consists essentially of heating the molecular sieve comprising the structure directing agent at a temperature of from 200 C. to 800 C. in the presence of an oxygen-containing gas, optionally in the presence of steam. The structure directing agent can also be removed by photolysis techniques as described in U.S. Pat. No. 6,960,327.

(36) To the extent desired and depending on the composition of the molecular sieve, any cations in the as-synthesized or calcined molecular sieve can be replaced in accordance with techniques well known in the art by ion exchange with other cations. Preferred replacing cations include metal ions, hydrogen ions, hydrogen precursor, e.g., ammonium ions and mixtures thereof. Particularly preferred cations are those which tailor the catalytic activity for certain organic conversion reactions. These include hydrogen, rare earth metals and metals of Groups 2 to 15 of the Periodic Table of the Elements. As used herein, the term as-synthesized refers to the molecular sieve in its form after crystallization, prior to removal of the SDA cation.

(37) The molecular sieve disclosed herein can be formulated with into a catalyst composition by combination with other materials, such as binders and/or matrix materials, which provide additional hardness or catalytic activity to the finished catalyst. When blended with such components, the relative proportions of the SSZ-105 molecular sieve and matrix may vary widely with the SSZ-105 content ranging from 1 to 99 wt. % (e.g., from 10 to 90 wt. % or from 20 to 80 wt. %) of the total catalyst.

(38) Characterization of the Molecular Sieve

(39) Molecular sieve SSZ-105 is an intergrowth of the ERI and LEV crystal structures. Physical mixtures of the two phases ERI and LEV prepared by mixing samples of two pure materials are not defined as molecular sieve SSZ-105.

(40) In its as-synthesized and anhydrous form, molecular sieve SSZ-105 has a chemical composition, in terms of mole ratios, as described in Table 2:

(41) TABLE-US-00003 TABLE 2 Broad Exemplary SiO.sub.2/Al.sub.2O.sub.3 10 to 50 15 to 40 Q/SiO.sub.2 0.02 to 0.20 0.05 to 0.20 M/SiO.sub.2 0.01 to 0.20 0.02 to 0.15
wherein compositional variables Q and M are as described herein above.

(42) It should be noted that the as-synthesized form of the molecular sieve disclosed herein may have molar ratios different from the molar ratios of reactants of the reaction mixture used to prepare the as-synthesized form. This result may occur due to incomplete incorporation of 100% of the reactants of the reaction mixture into the crystals formed (from the reaction mixture).

(43) In its calcined form, molecular sieve SSZ-105 has chemical composition comprising the following molar relationship:
Al.sub.2O.sub.3:(n)SiO.sub.2
wherein n has a value of at least 10 (e.g., from 10 to 50, from 10 to 45, from 10 to 40, from 10 to 35, from 10 to 30, from 10 to 25, from 12 to 50, from 12 to 45, from 12 to 40, from 12 to 35, from 12 to 30, from 12 to 25, from 15 to 50, from 15 to 45, from 15 to 40, from 15 to 35, from 15 to 30, or from 15 to 25).

(44) In one embodiment, the intergrown crystalline molecular sieve disclosed herein can have from 1% to 99% (e.g., from 5% to 95%, from 10% to 90%, from 20% to 80%, from 30% to 70%, from 40% to 60%) of the ERI crystal structure. Similarly, the intergrown molecular sieve disclosed herein can have from 1% to 99% (e.g., from 5% to 95%, from 10% to 90%, from 20% to 80%, from 30% to 70%, or from 40% to 60%) of the LEV crystal structure. The relative proportions of each of the phases can be analyzed by X-ray diffraction and, in particular, by comparing the observed patterns with calculated patterns generated using algorithms to simulate the effects of stacking disorder. DIFFaX is a computer program based on a mathematical model for calculating intensities from faults (see M. M. J. Treacy et al., Proc. R. Soc. Lond. A 1991, 433, 499-520). DIFFaX is the simulation program selected by and available from the International Zeolite Association to simulate the powder XRD patterns for randomly intergrown phases (see Collection of Simulated XRD Powder Patterns for Zeolites, Fifth Revised Edition, Elsevier, 2007).

(45) The powder X-ray diffraction patterns presented herein were collected by standard techniques. The radiation was CuK.sub. radiation. The peak heights and the positions, as a function of 2 where is the Bragg angle, were read from the relative intensities of the peaks (adjusting for background), and d, the interplanar spacing corresponding to the recorded lines, can be calculated.

(46) Minor variations in the diffraction pattern can result from variations in the mole ratios of the framework species of the particular sample due to changes in lattice constants. In addition, sufficiently small crystals will affect the shape and intensity of peaks, leading to significant peak broadening. Minor variations in the diffraction pattern can also result from variations in the organic compound used in the preparation. Calcination can also cause minor shifts in the XRD pattern. Notwithstanding these minor perturbations, the basic crystal lattice structure remains unchanged.

(47) Processes Using SSZ-105

(48) Molecular sieve SSZ-105 can be used to dry gases and liquids; for selective molecular separation based on size and polar properties; as an ion-exchanger; as a chemical carrier; in gas chromatography; and as a catalyst in organic conversion reactions. Examples of suitable catalytic uses include catalytic conversion of oxygenates to one or more olefins, synthesis of monoalkylamines and dialkylamines, and catalytic reduction of nitrogen oxides.

EXAMPLES

(49) The following illustrative examples are intended to be non-limiting.

Example 1

(50) 0.80 g of 45% KOH solution, 0.13 g of 50% NaOH solution, 9.56 g of deionized water and 2.00 g of CBV760 Y-zeolite powder (Zeolyst International, SiO.sub.2/Al.sub.2O.sub.3 mole ratio=60) were mixed together in a Teflon liner. Then, 8.45 g of 20% N,N-dimethylpiperidinium hydroxide solution was added to the mixture. The resulting gel was stirred until it became homogeneous. The liner was then capped and placed within a Parr steel autoclave reactor. The autoclave was then placed in an oven and the heated at 150 C. for 4 days. The solid products were recovered by centrifugation, washed with deionized water and dried at 95 C.

(51) The resulting product had a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of 15.8, as determined by ICP elemental analysis.

(52) The resulting product was analyzed by powder XRD and SEM. The powder XRD pattern is shown in FIG. 1. The SEM image is shown in FIG. 2 and indicates a uniform field of crystals. The list of the characteristic XRD peaks for this as-synthesized product is shown in Table 3 below.

(53) TABLE-US-00004 TABLE 3 Characteristic Peaks for As-Synthesized SSZ-105 Prepared in Example 1 2-Theta.sup.(a) d-Spacing, nm Relative Intensity.sup.(b) 7.86 1.124 S 11.00 0.804 S 11.76 0.752 W 13.54 0.654 M 15.64 0.566 W 17.49 0.507 S 17.94 0.494 S 20.72 0.428 M 22.10 0.402 VS 23.54 0.378 S .sup.(a)0.35 .sup.(b)The powder XRD patterns provided are based on a relative intensity scale in which the strongest line in the powder X-ray diffraction pattern is assigned a value of 100: W = weak (>0 to 20); M = medium (>20 to 40); S = strong (>40 to 60); VS = very strong (>60 to 100).

(54) A comparison between the experimental powder XRD pattern collected from the calcined product and DIFFaX simulated powder XRD patterns with various ERI/LEV intergrowth ratios is shown in FIG. 3. DIFFaX calculation indicates that the product is an intergrowth material with approximately 50-60% of ERI stacking sequence and 40-50% LEV stacking sequence.

Example 2

(55) 3.21 g of 45% KOH solution, 0.52 g of 50% NaOH solution, 32.46 g of deionized water and 8.00 g of CBV780 Y-zeolite powder (Zeolyst International, SiO.sub.2/Al.sub.2O.sub.3 mole ratio=80) were mixed together in a Teflon liner. Then, 41.05 g of 20% N,N-dimethylpiperidinium hydroxide solution was added to the mixture. The resulting gel was stirred until it became homogeneous. The liner was then capped and placed within a Parr steel autoclave reactor. The autoclave was then placed in an oven and the heated at 150 C. for 3 days. The solid products were recovered by centrifugation, washed with deionized water and dried at 95 C.

(56) The resulting product had a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of 17.1, as determined by ICP elemental analysis.

(57) The resulting product was identified by powder XRD and SEM as pure SSZ-105. The SEM image is shown in FIG. 4. The list of the characteristic XRD peaks for this as-synthesized product is shown in Table 4 below.

(58) TABLE-US-00005 TABLE 4 Characteristic Peaks for As-Synthesized SSZ-105 Prepared in Example 2 2-Theta.sup.(a) d-Spacing, nm Relative Intensity.sup.(b) 7.90 1.118 S 11.00 0.804 S 11.73 0.754 W 13.51 0.655 W 15.78 0.561 W 17.48 0.507 S 17.90 0.495 M 20.86 0.425 M 22.28 0.399 VS 23.52 0.378 M .sup.(a)0.35 .sup.(b)The powder XRD patterns provided are based on a relative intensity scale in which the strongest line in the powder X-ray diffraction pattern is assigned a value of 100: W = weak (>0 to 20); M = medium (>20 to 40); S = strong (>40 to 60); VS = very strong (>60 to 100).

(59) A comparison between the experimental powder XRD pattern collected from the calcined product and DIFFaX simulated powder XRD patterns with various ERI/LEV intergrowth ratios is shown in FIG. 5. DIFFaX calculation indicates that the product is an intergrowth material with approximately 50-60% of ERI stacking sequence and 40-50% LEV stacking sequence.

Example 3

(60) 0.80 g of 45% KOH solution, 0.13 g of 50% NaOH solution, 9.56 g of deionized water and 2.00 g of CBV720 Y-zeolite powder (Zeolyst International, SiO.sub.2/Al.sub.2O.sub.3 mole ratio=30) were mixed together in a Teflon liner. Then, 8.45 g of 20% N,N-dimethylpiperidinium hydroxide solution was added to the mixture. The resulting gel was stirred until it became homogeneous. The liner was then capped and placed within a Parr steel autoclave reactor. The autoclave was then placed in an oven and the heated at 150 C. for 4 days. The solid products were recovered by centrifugation, washed with deionized water and dried at 95 C.

(61) The resulting product had a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of 12.7, as determined by ICP elemental analysis.

(62) The resulting product was identified by powder XRD and SEM as pure SSZ-105. The SEM image is shown in FIG. 6. The list of the characteristic XRD peaks for this as-synthesized product is shown in Table 5 below.

(63) TABLE-US-00006 TABLE 5 Characteristic Peaks for As-Synthesized SSZ-105 Prepared in Example 3 2-Theta.sup.(a) d-Spacing, nm Relative Intensity.sup.(b) 7.80 1.132 VS 9.80 0.902 M 11.76 0.752 W 13.47 0.657 S 15.56 0.569 M 16.68 0.531 W 17.90 0.495 W 19.36 0.458 S 20.65 0.430 M 21.45 0.414 W .sup.(a)0.35 .sup.(b)The powder XRD patterns provided are based on a relative intensity scale in which the strongest line in the powder X-ray diffraction pattern is assigned a value of 100: W = weak (>0 to 20); M = medium (>20 to 40); S = strong (>40 to 60); VS = very strong (>60 to 100).

(64) A comparison between the experimental powder XRD pattern collected from the calcined product and DIFFaX simulated powder XRD patterns with various ERI/LEV intergrowth ratios is shown in FIG. 7. DIFFaX calculation indicates that the product is an intergrowth material with approximately 80-90% of ERI stacking sequence and 10-20% LEV stacking sequence.

Example 4

(65) 3.21 g of 45% KOH solution, 32.72 g of deionized water and 8.00 g of CBV760 Y-zeolite powder (Zeolyst International, SiO.sub.2/Al.sub.2O.sub.3 mole ratio=60) were mixed together in a Teflon liner. Then, 41.05 g of 20% N,N-dimethylpiperidinium hydroxide solution was added to the mixture. The resulting gel was stirred until it became homogeneous. The liner was then capped and placed within a Parr steel autoclave reactor. The autoclave was then placed in an oven and the heated at 150 C. for 3 days. The solid products were recovered by centrifugation, washed with deionized water and dried at 95 C.

(66) The resulting product had a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of 19.7, as determined by ICP elemental analysis.

(67) The resulting product was analyzed by powder XRD and SEM. It was identified as pure SSZ-105 molecular sieve. The SEM image is shown in FIG. 8. The list of the characteristic XRD peaks for this as-synthesized product is shown in Table 6 below.

(68) TABLE-US-00007 TABLE 6 Characteristic Peaks for As-Synthesized SSZ-105 Prepared in Example 4. 2-Theta.sup.(a) d-Spacing, nm Relative Intensity.sup.(b) 7.84 1.126 W 8.62 1.025 W 10.92 0.809 S 11.73 0.754 W 13.55 0.653 S 15.69 0.564 W 17.56 0.505 VS 17.92 0.495 S 21.06 0.421 M 22.28 0.399 VS .sup.(a)0.35 .sup.(b)The powder XRD patterns provided are based on a relative intensity scale in which the strongest line in the powder X-ray diffraction pattern is assigned a value of 100: W = weak (>0 to 20); M = medium (>20 to 40); S = strong (>40 to 60); VS = very strong (>60 to 100).

(69) A comparison between the experimental powder XRD pattern collected from the calcined product and DIFFaX simulated powder XRD patterns with various ERI/LEV intergrowth ratios is shown in FIG. 9. DIFFaX calculation indicates that the product is an intergrowth material with approximately 20-30% of ERI stacking sequence and 70-80% LEV stacking sequence.

Example 5

(70) 0.80 g of 45% KOH solution, 8.18 g of deionized water and 2.00 g of CBV780 Y-zeolite powder (Zeolyst International, SiO.sub.2/Al.sub.2O.sub.3 mole ratio=80) were mixed together in a Teflon liner. Then, 10.26 g of 20% N,N-dimethylpiperidinium hydroxide solution was added to the mixture. The resulting gel was stirred until it became homogeneous. The liner was then capped and placed within a Parr steel autoclave reactor. The autoclave was then placed in an oven and the heated at 150 C. for 4 days. The solid products were recovered by centrifugation, washed with deionized water and dried at 95 C.

(71) The resulting product had a SiO.sub.2/Al.sub.2O.sub.3 mole ratio of 21.6, as determined by ICP elemental analysis.

(72) The resulting product was analyzed by powder XRD and SEM and indicated that the product was pure SSZ-105 molecular sieve. The SEM image is shown in FIG. 10. The list of the characteristic XRD peaks for this as-synthesized product is shown in Table 7 below.

(73) TABLE-US-00008 TABLE 7 Characteristic Peaks for As-Synthesized SSZ-105 Prepared in Example 5 2-Theta.sup.(a) d-Spacing, nm Relative Intensity.sup.(b) 7.95 1.111 W 8.63 1.024 W 10.97 0.806 M 11.62 0.761 W 13.54 0.654 M 16.00 0.554 W 17.46 0.507 VS 17.88 0.496 M 21.06 0.421 S 22.22 0.400 VS .sup.(a)0.35 .sup.(b)The powder XRD patterns provided are based on a relative intensity scale in which the strongest line in the powder X-ray diffraction pattern is assigned a value of 100: W = weak (>0 to 20); M = medium (>20 to 40); S = strong (>40 to 60); VS = very strong (>60 to 100).

(74) A comparison between the experimental powder XRD pattern collected from the calcined product and DIFFaX simulated powder XRD patterns with various ERI/LEV intergrowth ratios is shown in FIG. 11. DIFFaX calculation indicates that the product is an intergrowth material with approximately 10-20% of ERI stacking sequence and 80-90% LEV stacking sequence.

Example 6

Calcination of SSZ-105

(75) The as-synthesized molecular sieve products were calcined inside a muffle furnace under a flow of air heated to 540 C. at a rate of 1 C./minute and held at 540 C. for 5 hours, cooled and then analyzed by powder XRD.

(76) FIG. 3, FIG. 5, FIG. 7, FIG. 9 and FIG. 11 show the XRD patterns of calcined SSZ-105 molecular sieve products 1, 2, 3, 4 and 5, respectively, and indicate that the material remains stable after calcination to remove the organic SDA.

Example 7

Micropore Volume Analysis

(77) The calcined material from Example 6 was treated with 10 mL (per g of molecular sieve) of a 1N ammonium nitrate solution at 90 C. for 2 hours. The solution was cooled, decanted off and same process repeated.

(78) The ammonium-exchanged molecular sieve product (NH.sub.4-SSZ-105) was subjected to a micropore volume analysis using N.sub.2 as adsorbate and via the BET method. The molecular sieve exhibited a micropore volume of 0.25 cm.sup.3/g and indicates that SSZ-105 has microporous character.

(79) As used herein, the term comprising means including elements or steps that are identified following that term, but any such elements or steps are not exhaustive, and an embodiment can include other elements or steps.

(80) Unless otherwise specified, the recitation of a genus of elements, materials or other components, from which an individual component or mixture of components can be selected, is intended to include all possible sub-generic combinations of the listed components and mixtures thereof.

(81) All documents cited in this application are herein incorporated by reference in their entirety to the extent such disclosure is not inconsistent with this text.