CN106986354B - A kind of synthetic method of SSZ-13 zeolite - Google Patents
A kind of synthetic method of SSZ-13 zeolite Download PDFInfo
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- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
- C01B39/04—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof using at least one organic template directing agent, e.g. an ionic quaternary ammonium compound or an aminated compound
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Abstract
The invention belongs to technical field of zeolite, specially a kind of synthetic method of SSZ-13 zeolite.This method is will be containing the mixture that alkali or alkaline earth metal source, the oxide source of triad, the oxide source of quadrivalent element, water and structure directing agent methenamine form through hydro-thermal reaction, generate SSZ-13 zeolite crystal, through cooling, filtering, washing, SSZ-13 zeolite is made.The structure directing agent that the present invention uses has small toxicity, the advantages such as price is honest and clean, synthetic product silica alumina ratio range is wide, and activation temperature is low, is easy to industrialize compared with well known other directed agents.SSZ-13 zeolite prepared by the present invention is used to show high catalytic conversion in the catalytic elimination reaction of nitrogen oxides as catalyst.
Description
Technical field
The invention belongs to technical field of zeolite, and in particular to a kind of synthetic method of SSZ-13 zeolite.
Background technique
The skeleton of SSZ-13 zeolite molecular sieve belongs to CHA structure type, and [SiO4] and [AlO4] tetrahedron are total to oxygen and are linked into
Four oxygen member rings and six oxygen member ring primary structure d6r cages (see Fig. 1 (1)) and the cha cage of four oxygen member rings, eight oxygen member ring building are (see Fig. 1
(2)), the hole that d6r cage and cha cage are connected with each other (see Fig. 1 (3)), are further orderly linked into 0.38x0.38 nanometers of hatch bore diameter
Road structure (see Fig. 1 (4)).CHA structure type zeolite is found in natural minerals previously, is commonly called as chabasie (Chabasite), one kind
SiO2/Al2O3The Ca type chabasie (Nature, 181,1794-1796,1958) that molar ratio (SAR) is 4.Because of the natural goods reserves
Less, impurity is more, SAR is too low, stability is not hot high, limits its application.People, which start manually to synthesize, solves the problems, such as this.
CN102442679A discloses a kind of synthetic method of chabasie, and with KOH, white carbon black, chromatographic silica gel, aluminium foil is that height is made in raw material
Reactant (the K of basicity2O/SiO2=0.33-0.46), the hydrothermal synthesis K-type chabasie under the conditions of crystal seed of 5-25% is added.
It USP4503024(1985 is) that silicon, silicon source react in the water-soluble colloid system containing KOH and synthesized the K of SAR=4-5 for 95 DEG C with Y zeolite
Type chabasie.The chabasie of low SAR is generally only applicable to adsorbent processed.
It is proposed for SAR, USP4544538(1985 for improving product), with N, N, N- trimethyl adamantamrnonium cation is knot
The zeolite molecular sieve of hydrothermal synthesis CHA structure type at 160 DEG C of structure directed agents (SDA), trade name SSZ-13, SAR are increased to 28.
N, N, N- front three base diamond alkane ammonium are most strong to " template " effect of guiding SSZ-13 crystallization, many basic research with the zeolite
The zeolitic material used in relevant test is mostly used it greatly to synthesize.
The success of high silicon SSZ-13 synthesizes, has pushed its application and development.Research has shown that, in diesel engine (including weight
Type automobile, steamer) tail gas nitrogen oxide catalytic elimination, Catalytic dehydration of methanol reaction for preparing light olefins (MTO) and small molecule
Adsorbing separation (such as CO2With methane separation), environmental project (as removal CO and lower carbon number hydrocarbons) and energy convert (molecule bullet such as processed
Spring) etc. fields have extremely wide application prospect.
However, the price of N, N, N- trimethyl adamantane ammonium valuableness, difficult recycling, pollution environment, limit its large-scale industrial
Production.The relatively inexpensive benzyltrimethylammon.um of CN101573293A proposition substitutes N, N, and N- trimethyl adamantane ammonium is SDA, adds
Crystal seed hydrothermal synthesis SSZ-13.CN103601211A and CN103599813A propose with choline ((beta-hydroxyethyl) trimethyl ammonia
Hydroxide) it is SDA, crystal seed is added synthesizes the molecular sieve, the reactant of synthesis forms SAR=10-60, and basicity is higher, its OH/
SiO2=0.3-0.6.CN104709917A proposes to use N, N- dimethyl-N,Ethylcyclohexyl ammonium bromide or N, N- dimethyl-N,-
Ethylcyclohexyl ammonium iodide is that SDA synthesizes SSZ-13 molecular sieve.Copper-amine complex (Cu2+ and the tetrem such as Ren Limin, Xiao Fengshou
Five amine of alkene, Cu-TEPA) it is template molecule, synthesize Cu-SSZ-13 zeolite molecular sieve (Chinese Journal of
Catalysis v01.33 NO.12012).Microporous and Mesoporous Materials 144 (2011)
91-96 report with benzyltrimethylammon.um be SDA by the high-silicon Y-Zeolite of SAR=44-194 125 in the presence of a large amount of SSZ-13 crystal seeds
Brilliant DEG C hydro-thermal reaction 1-3 turnover is SSZ-13 molecular sieve, SAR=28-43 of product.Microporous and Mesoporous
The report of Materials 138 (2011) 32-39 turns crystalline substance with the high silicon Y that purine and 1- amantadine are oriented to different SAR as SSZ-
13。J. Phys. Chem. B 2008, 112, 7257-7266 report withN,N,NTrimethyl adamantane ammonium (TMAda+) is
SDA has synthesized the Si- of total silicon for 90 hours using amorphous SiO2 as silicon source in the system containing HF by 150 DEG C of hydro-thermal reactions
CHA zeolite shows excellent molecule spring performance.
Above-mentioned document explanation, the synthesis of the extensive SSZ-13 zeolite of application prospect must use nitrogenous organic base, that is, organic
Ammonium or amine are as SDA.And presently used N, N, N- trimethyl adamantane ammonium, N, N- dimethyl-N,Ethylcyclohexyl ammonium or N,
N- dimethyl-N,Ethylcyclohexyl ammonium, benzyltrimethylammon.um, tetraethylenepentamine, purine and 1- amantadine, choline etc., valence
Lattice are generally higher, and some has certain toxicity, damage to the environment.The SSZ-13 zeolite of synthesis is oriented to before the use with these SDA
Must be roasted at 500-600 DEG C a few hours carry out be activated remove duct in SDA.High-temperature process is inevitably to zeolite structured
Adverse effect is generated with catalytic active center.
Cha cage in SSZ-13 crystal structure plays a crucial role in the nucleus formation and growth of the zeolite.
The molecular configuration and size of nitrogenous organic base and the space matched well of the cage, which can be oriented to, synthesizes the Zeolites Zeolites.Here it is institute
" template " effect of meaning.It is that SDA synthesizes SSZ-13 zeolite that the present invention, which replaces adamantane ammonium with methenamine, and reason is the two
Methenamine is (see the similitude of Fig. 2 (A) and adamantane ammonium (see Fig. 2 (B)) on molecular configuration.Molecular simulation is calculation shows that crow
The molecular dimension of Lip river tropine and amantadine ions is respectively 0.49x0.49x0.49 nm and 0.57x0.57x0.57nm, the two
All it is enough to be accommodated by cha cage.Methenamine is that white crystal is soluble easily in water, molecular formula C6H12N4, and molecular weight 140.18 adds
Heat to 280 DEG C i.e. distillation is decomposed.Temperature is improved with the SSZ-13 zeolite of methenamine guiding synthesis to be activated to 300-320 DEG C
When, the product that the methenamine template molecule distillation in cha cage is decomposed can leave zeolite hatch bore diameter 0.38x0.38 quickly
The duct of nanometer, it is not necessary to improve activation temperature to 500-600 DEG C, this characteristic is synthesized with above-mentioned other template molecules
Not available for SSZ-13 zeolite.
Summary of the invention
The purpose of the present invention is to provide a kind of synthetic methods that SSZ-13 zeolite is new, to avoid high-temperature process to zeolite
Structure and catalytic active center generate adverse effect.
The synthetic method of SSZ-13 zeolite provided by the invention is by the source alkali or alkaline earth metal (M), triad
(X) mixture that oxide source, water and structure directing agent (R) methenamine of oxide source, quadrivalent element (Y) form, by force
Power, which stirs into after colloid to be placed in stainless steel cauldron at a temperature of 110-180 DEG C, carries out hydro-thermal reaction, generates SSZ-13 zeolite
Crystal, product is through cooling, filtering, deionized water washing, filtering, drying to get target product SSZ-13 zeolite.
YO2/X2O3It is the molar ratio of quadrivalent element oxide Yu triad oxide, remaining is aoxidized with quadrivalent element
The molar ratio of the water, alkali, metal cation and the template that are calculated on the basis of object.Specifically: YO2/X2O3=10-500, H2O/YO2=
10-30, OH/YO2=0.1-0.8, R/YO2=0.1-1.0, M/YO2=0.05-0.4。
In the present invention, preferred 140-180 DEG C of reaction temperature.Reaction temperature is higher, and the required reaction time is shorter.
In the present invention, the reaction time is 16-78h, reaction time preferred 36-60h.
In the present invention, alkali metal source is selected from NaOH, KOH, and the oxide source of triad (X) is selected from aluminum sulfate, hydroxide
The oxide source of aluminium, sodium metaaluminate, quadrivalent element (Y) is selected from silica solution, waterglass, silica gel and White Carbon black.
In the present invention, the crystal seed of SSZ-13 zeolite can be added in the reactive mixture, to accelerate to crystallize, when reducing reaction
Between, there is a possibility that stray crystal phase in reduction.Crystal seed, which is not added, to be synthesized, and the reaction time is longer.The additional amount of crystal seed, with SSZ-13
SiO2 weight ratio in crystal seed (solid)/reaction mixture is calculated as 0-5.5%, preferably 1-5.5%.
The X-ray powder diffraction for the SSZ-13 zeolite that the present invention synthesizes composes the feature diffraction spectra phase zeolite structured with CHA type
Consistent (see figure 3) has no any stray crystal phase.
The electron scanning micrograph for the SSZ-13 zeolite that the present invention synthesizes shows that product is the dispersion of 1 microns
The small monocrystal (see figure 4) of cube.
Nitrogen absorption under low temperature-the desorption isotherm for the SSZ-13 zeolite that the present invention synthesizes shows typical micro-porous adsorption feature
(see figure 5).The adsorption curve and desorption curve of coincidence illustrate that synthesized SSZ-13 zeolite crystal structure is perfect, and duct is unimpeded.
Catalyst made of the SSZ-13 zeolite synthesized with the present invention shows high catalysis on the catalytic elimination of nitrogen oxides
Conversion ratio (see figure 6).
The present invention is with methenamine (hexamethylenetetramine) that is cheap, can be used for disinfectant and oral medicine
SDA, synthetic product are the SSZ-13 zeolite of SAR=15-300.The activating treatment temperature of product is not higher than 320 DEG C, eliminates activation
Handle the adverse effect generated to zeolite structured and catalytic active center.
The structure directing agent methenamine that the present invention uses has that small toxicity, price be honest and clean, silica alumina ratio range of synthetic product
Width, the advantages such as activation temperature is low, is easy to industrialize.
Detailed description of the invention
Fig. 1 is the structure type of SSZ-13 zeolite molecular sieve.
Fig. 2 is methenamine (A) and adamantane ammonium (B) molecular architecture.
Fig. 3 is the X-ray powder diffraction spectrum for the SSZ-13 zeolite that the present invention synthesizes.Abscissa indicates angle of diffraction (2 θ),
Ordinate indicates diffraction peak intensity.
Fig. 4 is the electron scanning micrograph for the SSZ-13 zeolite that the present invention synthesizes.
Fig. 5 is the nitrogen absorption under low temperature-desorption isotherm for the SSZ-13 zeolite that the present invention synthesizes.Abscissa indicates relative pressure
(P/P0), ordinate indicates adsorption volume CM3/g。
Fig. 6 is catalyst nitrogen oxides catalytic reduction reaction conversion ratio figure made of the SSZ-13 zeolite of the invention synthesized.
Abscissa indicates reaction temperature, and ordinate indicates nitrogen oxides catalytic conversion.
Specific embodiment
Illustrate preparation process of the invention for following example proportion
Raw material:
Silica solution: SiO230.24%, Na2O 0.212%
Aluminum sulfate: Al2(SO4)3·18H2O
NaOH
Methenamine
H2O
Reactant mol ratio: SAR=40； OH-/SiO2=0.8； R/SiO2=0.25；H2O/SiO2=22.5。
Weighing each raw material mixing, strong stirring at capacity is placed on after colloid by this formula is in 100ml stainless steel cauldron
In 180 DEG C hydro-thermal reaction 60 hours, generate SSZ-13 zeolite crystal, product through cooling, filtering, deionized water washing, filtering,
Target product is made in drying.
Following table lists the SAR and its BET table of reactant mol ratio, reaction temperature and the time of each embodiment, product
The critical natures such as area, micro pore surface area, total hole volume, micropore volume, average pore size.
SSZ-13 synthetic example
。
Claims (4)
1. a kind of synthetic method of SSZ-13 zeolite, which is characterized in that alkali or alkaline earth metal source, triad will be contained
The mixture that oxide source, the oxide source of quadrivalent element, water and structure directing agent methenamine form is in 110-180 DEG C of temperature
Lower carry out hydro-thermal reaction generates SSZ-13 zeolite crystal, then through cooling, filtering, washing, obtains required SSZ-13 zeolite；Wherein,
The molar ratio of each component in mixture are as follows: YO2/X2O3=10-500, H2O/YO2=10-30, OH- /YO2=0.1-0.8, R/YO2=
0.1-1.0, M/YO2=0.05-0.4；Here, X is triad, and Y is quadrivalent element, and R is structure directing agent, M alkali metal or alkali
Earth metal；
Alkali metal source is selected from NaOH or KOH, and the oxide source of triad is selected from aluminum sulfate, and the oxide source of quadrivalent element is selected from
Silica solution.
2. the synthetic method of SSZ-13 zeolite according to claim 1, which is characterized in that reaction temperature is 140-180 DEG C.
3. the synthetic method of SSZ-13 zeolite according to claim 1, which is characterized in that the reaction time is 16-78 hours.
4. the synthetic method of SSZ-13 zeolite according to claim 1, which is characterized in that 0- is added in reaction mixture
5.5% SSZ-13 zeolite seed crystal.
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| CN108059172B (en) * | 2017-12-13 | 2020-07-10 | 山东齐鲁华信高科有限公司 | Preparation method of H-SSZ-13 molecular sieve |
| CZ2017832A3 (en) * | 2017-12-21 | 2018-12-19 | Unipetrol výzkumně vzdělávací centrum, a.s. | A method of producing SSZ-13 zeolite |
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| CZ308130B6 (en) * | 2018-11-27 | 2020-01-15 | Unipetrol výzkumně vzdělávací centrum, a.s. | Process for producing zeolite SSZ-13 with mechanochemical activation |
| CN109761244B (en) * | 2019-01-16 | 2022-04-19 | 山东国瓷功能材料股份有限公司 | Cu-SSZ-13 molecular sieve and preparation method and application thereof |
| CN110357121B (en) * | 2019-08-02 | 2022-09-09 | 太原理工大学 | Preparation method of small-grain nano hierarchical pore SSZ-13 molecular sieve |
| CN110980761B (en) * | 2019-11-22 | 2021-09-24 | 中触媒新材料股份有限公司 | Method for preparing SSZ-39 molecular sieve by taking sulfur modified Y-type molecular sieve as raw material |
| CN111599989B (en) * | 2020-05-28 | 2022-04-12 | 湖北亿纬动力有限公司 | Silicon-based negative plate and preparation method and application thereof |
| KR20220060316A (en) * | 2020-11-04 | 2022-05-11 | 현대자동차주식회사 | NOx STORAGE CATALYST AND METHOD FOR PREPARING THE SAME |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544538A (en) * | 1982-07-09 | 1985-10-01 | Chevron Research Company | Zeolite SSZ-13 and its method of preparation |
| US20130323163A1 (en) * | 2010-12-22 | 2013-12-05 | Clariant Produkte (Deutschland) Gmbh | Method for producing titano-(silico)-alumino-phosphate |
| CN105645426A (en) * | 2014-11-18 | 2016-06-08 | 中触媒有限公司 | A synthetic method of an SSZ-13 molecular sieve |
| CN106145138A (en) * | 2016-06-27 | 2016-11-23 | 杨晓波 | A kind of synthesis has the method for the zeolite molecular sieve of chabazite structure |
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2017
- 2017-05-06 CN CN201710314597.0A patent/CN106986354B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544538A (en) * | 1982-07-09 | 1985-10-01 | Chevron Research Company | Zeolite SSZ-13 and its method of preparation |
| US20130323163A1 (en) * | 2010-12-22 | 2013-12-05 | Clariant Produkte (Deutschland) Gmbh | Method for producing titano-(silico)-alumino-phosphate |
| CN105645426A (en) * | 2014-11-18 | 2016-06-08 | 中触媒有限公司 | A synthetic method of an SSZ-13 molecular sieve |
| CN106145138A (en) * | 2016-06-27 | 2016-11-23 | 杨晓波 | A kind of synthesis has the method for the zeolite molecular sieve of chabazite structure |
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