WO2012088854A1 - Sapo分子筛的溶剂热合成方法及由其制备的催化剂 - Google Patents
Sapo分子筛的溶剂热合成方法及由其制备的催化剂 Download PDFInfo
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- WO2012088854A1 WO2012088854A1 PCT/CN2011/076332 CN2011076332W WO2012088854A1 WO 2012088854 A1 WO2012088854 A1 WO 2012088854A1 CN 2011076332 W CN2011076332 W CN 2011076332W WO 2012088854 A1 WO2012088854 A1 WO 2012088854A1
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- Prior art keywords
- sapo
- molecular sieve
- synthesis method
- solvothermal synthesis
- sieve according
- Prior art date
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- 239000002808 molecular sieve Substances 0.000 title claims abstract description 81
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 241000269350 Anura Species 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004729 solvothermal method Methods 0.000 title claims abstract description 25
- 239000003054 catalyst Substances 0.000 title claims abstract description 8
- 230000002194 synthesizing effect Effects 0.000 title abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 150000001412 amines Chemical class 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000032683 aging Effects 0.000 claims abstract description 6
- 150000001336 alkenes Chemical class 0.000 claims abstract description 6
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 238000002425 crystallisation Methods 0.000 claims description 49
- 230000008025 crystallization Effects 0.000 claims description 49
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 33
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 27
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 17
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical group C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 235000011007 phosphoric acid Nutrition 0.000 claims description 12
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 11
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 9
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 claims description 8
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 7
- ZSIQJIWKELUFRJ-UHFFFAOYSA-N azepane Chemical compound C1CCCNCC1 ZSIQJIWKELUFRJ-UHFFFAOYSA-N 0.000 claims description 6
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 claims description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 4
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 claims description 3
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims description 2
- KKFGZKBFBZYLJH-UHFFFAOYSA-N N-ethyl-N-propan-2-ylpropan-2-amine hydrazine Chemical compound C(C)(C)N(CC)C(C)C.NN KKFGZKBFBZYLJH-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 229940043279 diisopropylamine Drugs 0.000 claims description 2
- 229940083124 ganglion-blocking antiadrenergic secondary and tertiary amines Drugs 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 150000003141 primary amines Chemical class 0.000 claims description 2
- 125000001664 diethylamino group Chemical group [H]C([H])([H])C([H])([H])N(*)C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000001308 synthesis method Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 35
- 230000015572 biosynthetic process Effects 0.000 description 27
- 238000003786 synthesis reaction Methods 0.000 description 26
- 238000002441 X-ray diffraction Methods 0.000 description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 18
- 239000008367 deionised water Substances 0.000 description 17
- 229910021641 deionized water Inorganic materials 0.000 description 17
- 239000012265 solid product Substances 0.000 description 14
- 239000000843 powder Substances 0.000 description 12
- 238000001354 calcination Methods 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 10
- 238000002050 diffraction method Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 238000001027 hydrothermal synthesis Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 229910021485 fumed silica Inorganic materials 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical class O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013335 mesoporous material Substances 0.000 description 2
- 239000012229 microporous material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- -1 silicon phosphorus aluminum Chemical compound 0.000 description 2
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 2
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241001460678 Napo <wasp> Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910002800 Si–O–Al Inorganic materials 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- BDKUZSIDPZSPNX-UHFFFAOYSA-N aluminum;bismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Bi+3] BDKUZSIDPZSPNX-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Natural products NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/82—Phosphates
- B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
- B01J29/85—Silicoaluminophosphates [SAPO compounds]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B37/00—Compounds having molecular sieve properties but not having base-exchange properties
- C01B37/06—Aluminophosphates containing other elements, e.g. metals, boron
- C01B37/08—Silicoaluminophosphates [SAPO compounds], e.g. CoSAPO
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/54—Phosphates, e.g. APO or SAPO compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/82—Phosphates
- C07C2529/84—Aluminophosphates containing other elements, e.g. metals, boron
- C07C2529/85—Silicoaluminophosphates (SAPO compounds)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/40—Ethylene production
Definitions
- the invention relates to a method for synthesizing SAP0 molecular sieves.
- the invention further relates to the catalytic use of the above materials in the conversion of oxygenates to light olefins. Background technique
- the synthesis of SAPO molecular sieves typically employs a hydrothermal process. Water acts as a continuous phase and bulk solvent for the synthesis, and its molar ratio to the organic amine templating agent is typically greater than 10. After the synthesis, a large amount of waste liquid which is difficult to use is generated, and the pressure of environmental protection treatment is increased. At the same time, the synthesis yield is low, generally less than 80%. This is mainly due to the higher solubility of the precursor formed from the synthetic raw material in the aqueous solution.
- SAPO-34 is a chabazite-type (CHA) molecular sieve with an eight-membered ring ellipsoidal cage and a three-dimensional cross-cell structure formed by a double six-membered ring stacked in an ABC manner, with a pore size of 0.38 x 0.38 nm.
- the cage size is 1.0x0.67nm, which belongs to the small pore molecular sieve.
- Its spatial symmetry group is R3m, which belongs to the trigonal system.
- SAPO-34 is composed of four elements of Si, Al, P and 0, and its composition can be varied within a certain range, generally n(Si) ⁇ n(P) ⁇ n(Al).
- the skeleton consists of Si0 4 , A10 4 " and P0 4 + tetrahedrons, and there are three bonds of [Al-0-P], [Si-O-Al] and [Si-O-Si], but there is no [Si- The presence of the 0-P] key.
- SAPO-34 molecular sieves have generally been hydrothermally synthesized using water as a solvent in a closed autoclave.
- the synthetic components include an aluminum source, a silicon source, a phosphorus source, a templating agent, and deionized water.
- the ideal source of silicon and aluminum is silica sol and pseudo-thin aluminum Stone; Phosphorus source generally uses 85% phosphoric acid.
- Common templating agents include tetraethylammonium hydroxide (TEAOH), morpholine (MOR), piperidine (Piperidine), isopropylamine (i-PrNH2), triethylamine (TEA), diethylamine (DEA), Propylamine and the like and mixtures thereof.
- RHO-RHO SAPO molecular sieves having framework structure is a double eight-membered ring is connected by a cage formed by a ⁇ , it belongs to the cubic crystal system, the main channel is constituted by a double eight-membered ring, orifice size 0.36nmx0.36nm o
- Robson, HE et al. first reported the synthesis of aluminosilicate zeolites with RHO structure using Na+ and Cs+ as structure-directing agents (Adv. Chem. Ser" 121, 106-115. 1987, Rouse, RC et al.
- a class of natural ore with RHO structure was discovered (N. JbMiner.
- ⁇ , ⁇ '-diisopropyl-1,3-propandiamine (N,N,-diisopropyl- 1 , 3-propanediamine) is a template for the synthesis of CoAPO-RHO, MgAPO-RHO, MnAPO-RHO molecular sieves (Microporous Mesoporous Mat., 23, 315-322).
- the synthesis methods of RHO-SAPO molecular sieve mainly include: hydrothermal synthesis of surfactants in the presence of RHO-SAPO and dry gel synthesis without the participation of surfactants (see patent application 200910169329.X) o participation of surfactants
- hydrothermal synthesis method on the one hand, water is used as the continuous phase and main solvent of the synthesis system, and a large amount of waste liquid which is difficult to use is generated after the synthesis, which increases the pressure of environmental protection treatment; on the other hand, the synthesis process uses relative Expensive surfactants increase the cost of synthesis.
- the silicon phosphorus aluminum dry gel should be configured first, and the process is complicated; and the RHO-SAPO molecular sieve obtained by the synthesis method has low crystallinity, and the obtained RHO-SAPO molecular sieve is not high. Often with uncrystallized The silicon phosphorus aluminum dry gel is more difficult to separate by washing or the like.
- the present invention employs an organic amine as an organic solvent and a templating agent for a solvothermal synthesis system, and synthesizes a SAPO molecular sieve in the presence of a small amount of water.
- the present invention provides a solvothermal synthesis method for SAPO molecular sieves, the method comprising the following synthetic steps:
- step b) maintaining the initial mixture obtained in the step a) at 30 to 60 ° C, and aging for no more than 24 hours under stirring to obtain an initial gel;
- the initial gel obtained in the step b) is crystallized at 150 to 250 ° C for 0.5 to 15 days.
- the initial mixture for preparing the SAPO molecular sieve may further contain an organic alcohol, and the molar ratio of the organic amine, the aluminum source, the phosphorus source, the silicon source, the organic alcohol and the water in the initial mixture is 6 ⁇ 30: 1: 0.5-5: 0.0 Bu 1.0: 0.01-0.50: 0.1-15.
- the organic amine/water molar ratio is greater than 0.51, preferably greater than 1.0, more preferably greater than 1.5, most preferably greater than 3.0, and less than 300; aging time is 0-24h, preferably 0.5-15h ; crystallization The time is 0.5-15 days, preferably 1-7 days;
- the method of the present invention further comprises the steps of separating, washing, and drying the crystallized product of step c) to obtain a SAPO-molecular sieve original powder.
- the aluminum source used in the present invention is a mixture of pseudo-boehmite, aluminum isopropoxide, aluminum oxide, aluminum hydroxide, aluminum chloride, aluminum sulfate or any combination thereof;
- the phosphorus source used is orthophosphoric acid, Any one or a mixture of any one of metaphosphoric acid, phosphate, phosphite;
- the source of silicon used is Any one or a mixture of silica sol, tetraethyl orthosilicate, silica, silica;
- the organic amine used is any one or any of organic primary, secondary and tertiary amines.
- Mixture including morpholine, piperidine, isopropylamine, triethylamine, diethylamine, di-n-propylamine, diisopropylamine, hexamethyleneimine, ⁇ ', ⁇ ', ⁇ , ⁇ -tetramethyl-1 Any one or a mixture of any of a mixture of 6 hexamethylenediamine, hydrazine, hydrazine-diisopropylethylamine, preferably diethylamine, triethylamine, morpholine, hexamethyleneimine, hydrazine, hydrazine - any one or a mixture of any of several diisopropylethylamines.
- the organic alcohol used in the initial mixture is any one of methanol, ethanol, n-propanol, isopropanol or a mixture of any of several.
- the addition of organic alcohols mainly inhibits the formation of heterocrystalline phases, ensuring the repeatability of the synthesis process and high purity.
- the prepared SAPO molecular sieves are SAPO-5, SAPO-34, SAPO-IK SAPO- 17. SAPO-18, SAPO-3 SAPO-35 SAPO-40, SAPO-4 SAPO-43, SAPO-56, Any one or a mixture of any of RHO-SAPO.
- the initially prepared synthetic mixture is aged for a certain period of time at 30-600 C, and the main function of the process is to effectively increase the crystallinity of the product while improving the yield.
- the synthesized SAPO molecular sieve can be used as a catalyst for acid-catalyzed reaction after being calcined in air at 400-700 °C.
- the synthesized SAPO molecular sieve can be used as a catalyst for the conversion of an oxide to an olefin by calcination in air at 400-700 °C.
- the organic amine Since the amount of water used in the synthesis is small, and each inorganic raw material and synthetic precursor are difficult to be dissolved in the organic amine, the organic amine can be conveniently separated from the gelled product after synthesis, recycled, and the amount of waste liquid generated is low. .
- the prepared SAPO exhibits excellent catalytic performance in the methanol conversion to olefin reaction.
- the prepared SAPO-34 has a longer reaction life than the SAPO-34 molecular sieve prepared by the usual hydrothermal synthesis method, and the ethylene propylene selectivity is improved.
- DRAWINGS BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a scanning electron micrograph (SEM) of a synthetic product in Example 10 of the present invention.
- Figure 2 is a scanning electron micrograph (SEM) of a synthetic product in Example 12 of the present invention.
- Example 3 The proportion of the ingredients and the crystallization process were the same as in Example 2, but the addition of methanol was omitted. After washing and drying the crystallized product, XRD analysis was carried out. The results showed that the sample was SAPO-34 containing a small amount of SAPO-5, and the peak-to-height ratio of the first strongest peak of the two was SAPO-5/SAPO-34. 1/11.
- Example 3 The proportion of the ingredients and the crystallization process were the same as in Example 2, but the addition of methanol was omitted. After washing and drying the crystallized product, XRD analysis was carried out. The results showed that the sample was SAPO-34 containing a small amount of SAPO-5, and the peak-to-height ratio of the first strongest peak of the two was SAPO-5/SAPO-34. 1/11.
- Example 3 Example 3
- Example 4 The proportion of the ingredients and the crystallization process were the same as in Example 3, but the low temperature aging process was omitted. After washing and drying the crystallized product, 11.5 g of raw powder (loss of calcination of 16.1%) was obtained and XRD analysis was performed. The results showed that the sample was pure SAPO-34 and the relative crystallinity was 80% (relative crystallinity of FDZ-38-3) defined as 100%).
- Example 4 The proportion of the ingredients and the crystallization process were the same as in Example 3, but the low temperature aging process was omitted. After washing and drying the crystallized product, 11.5 g of raw powder (loss of calcination of 16.1%) was obtained and XRD analysis was performed. The results showed that the sample was pure SAPO-34 and the relative crystallinity was 80% (relative crystallinity of FDZ-38-3) defined as 100%).
- Example 3 only l.Og of ethanol was changed to 1.0 g of n-propanol, and the remaining components and crystallization conditions were unchanged. The crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a SAPO-34 molecular sieve.
- Example 5
- Example 3 only 7.03 g of activated alumina was changed to 20.65 g of aluminum isopropoxide, and the amount of deionized water was changed to 1.0 g, and the remaining components and crystallization conditions were unchanged.
- the crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was SAPO-34 molecular sieve.
- Example 1 only 7.03 g of activated alumina was changed to 20.65 g of aluminum isopropoxide, 5.69 g of silica sol (SiO 2 mass% 28.2%) was changed to 1.6 g of fumed silica, and the amount of deionized water was changed. It was 1.0 g, and the remaining components and crystallization conditions were unchanged. The crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a SAPO-34 molecular sieve.
- Example 1 In Example 1, only 7.03 g of activated alumina was changed to 5.2 g of Y -alumina, and 5.69 g of silica sol (SiO 2 mass% 28.2%) was changed to 1.6 g of fumed silica, and the amount of deionized water was changed. For O.lg, the remaining components and crystallization conditions are unchanged. The crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a SAPO-34 molecular sieve.
- Example 1 only 7.03 g of activated alumina 600 Q C was calcined at a high temperature and used as an aluminum source (removing moisture contained therein), and 5.69 g of silica sol (SiO 2 mass percentage 28.2%) was changed to 1.6 g. Fuming silica, the amount of deionized water was changed to 0.1 g, and the remaining components and crystallization conditions were unchanged. The crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a SAPO-34 molecular sieve.
- the samples obtained in Example 1, Comparative Example 2 and Example 7 were subjected to air baking at 600 ° C for 4 hours, and then tableted and crushed to 20 to 40 mesh.
- the 1.0 g sample was weighed into a fixed bed reactor and evaluated for MT0 reaction.
- the reaction was carried out by a nitrogen gas activation at 550 Torr for 1 hour and then cooling to 450 °C.
- Methanol was carried by nitrogen, nitrogen flow rate was 40 ml/nii n , methanol weight space velocity 2.
- Oh-' o reaction product was analyzed by on-line gas chromatography. The results are shown in Table 4.
- Example 1 160 2.2 45.9 0.8 39.5 1.2 8.5 1.9 85.4 Comparative Example 2 140 2.7 44.3 0.8 38.1 1.9 10.1 2.1 82.4
- Example 7 160 2.3 44.8 0.7 39.9 1.6 9.0 1.7 84.7
- the XRD data are shown in Table 5. The results indicate that the synthesized product has an RHO structure.
- the composition of the sample subjected to XRF analysis was Alo. 489 Po. 306 Sio. 2 o 5 , which indicates that the obtained sample was a RHO-SAPO molecular sieve.
- the obtained sample was characterized by scanning electron microscopy, and the obtained electron micrograph is shown in Fig. 1. Comparative example 5
- Example 10 only 8.34 g of activated alumina was changed to 24.5 g of aluminum isopropoxide, and the amount of deionized water was changed to 1.0 g, and the remaining components and crystallization conditions were unchanged.
- the crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a RHO-SAPO molecular sieve. Comparative example 7
- Example 10 only 8.34 g of activated alumina was changed to 24.5 g of aluminum isopropoxide, and the amount of deionized water was changed to 10 g, and the remaining components and crystallization conditions were unchanged. The crystallization product is subjected to XRD diffraction analysis. The results showed that the synthetic sample was a SAPO-34 molecular sieve.
- Example 12
- Example 10 only 8.34 g of activated alumina was changed to 24.5 g of aluminum isopropoxide, 5.69 g of silica sol (SiO 2 mass% 28.2%) was changed to 1.6 g of fumed silica, and the amount of deionized water was changed. It was 1.2 g, and the remaining components and crystallization conditions were unchanged. The crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a RHO-SAPO molecular sieve.
- Example 10 only 8.34 g of activated alumina was changed to 6.1 ⁇ ⁇ -alumina, 5.69 g of silica sol (SiO 2 mass percent 28.2%) was changed to 1.6 g fuming silica, and the remaining components and The crystallization conditions are unchanged. The crystallization product was subjected to XRD diffraction analysis, and the results showed that the synthesized sample was a RHO-SAPO molecular sieve.
- Example 15
- Example 10 60 ml of diethylamine was changed to a mixed solution of 60 ml of diethylamine and 18 ml of morpholine, the amount of phosphoric acid (85 wt%) was changed to 12.35 g, and the amount of deionized water was changed to 0.5 g, keeping other components and The crystallization conditions were unchanged, and the obtained product was recorded as FDZ-31-2.
- the results of XRD diffraction analysis are shown in Table 7, and the results indicate that the synthesized product is a RHO-SAPO molecular sieve. Table 5: XRD results for the sample of Example 10
- Example 17 only the crystallization temperature was changed to 210 ° C, the crystallization time was changed to 48 h, and the silicon source was changed to 1.6 g of fumed silica. After the crystallization was completed, the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 12.2 g of the original powder (calcination loss of 14.0%). The sample was subjected to XRD analysis, and the results showed that the synthesized product was SAPO-18 molecular sieve.
- Example 17 only the crystallization temperature was changed to 210 ° C, the crystallization time was changed to 48 h, and the silicon source was changed to 1.6 g of fumed silica. After the crystallization was completed, the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 12.2 g of the original powder (calcination loss of 14.0%). The sample was subjected to XRD analysis, and the results showed that the synthesized product was SAPO-18 mole
- Example 1 only the organic amine was changed to 65 ml of ⁇ ', ⁇ -diisopropylethylamine, and the silicon source was changed to 1.6 g of fumed silica. After the completion of the crystallization, the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 12.6 g of the original powder (loss of calcination 15.2%). The sample was subjected to XRD analysis and the results showed that the synthesized product was SAPO-18 molecular sieve.
- Example 18
- Example 1 only the organic amine was changed to 65 ml of ⁇ ', ⁇ ', ⁇ , ⁇ -tetramethyl-1,6-hexanediamine. After the completion of the crystallization, the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 13.6 g of the original powder (loss of calcination of 16.8 %). The sample was subjected to XRD analysis and the results showed that the synthesized product was a SAPO-56 molecular sieve.
- Example 19
- Example 2 In Example 1, only the organic amine was changed to 60 ml of hexamethyleneimine. After the crystallization was completed, the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 12.1 g of the original powder (loss of calcination of 13.8 %). The sample was subjected to XRD analysis and the results showed that the synthesized product was SAPO-35 molecular sieve.
- Example 20
- Example 1 the organic amine was changed to 65 ml of hexamethyleneimine, the crystallization temperature was changed to 205 ° C, and the crystallization time was changed to 48 h, and the remaining conditions were unchanged. After the completion of the crystallization, the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 13.3 g of the original powder (calcination loss of 14%). The sample was subjected to XRD analysis and the results showed that the synthesized product was a SAPO-34 molecular sieve.
- Example 21 In Example 1, the organic amine was changed to 60 ml of di-n-propylamine, and the rest of the conditions were unchanged.
- the solid product was centrifuged, washed, and dried in air at 100 ° C to obtain 12.8 g of the original powder (calculation loss of 14.2%).
- the sample was subjected to XRD analysis and the results showed that the synthesized product was SAPO-43 molecular sieve.
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US13/976,458 US9168516B2 (en) | 2010-12-29 | 2011-06-24 | Solvothermal synthesis process of SAPO molecular sieves and catalysts prepared thereby |
EP11852524.5A EP2660203B1 (en) | 2010-12-29 | 2011-06-24 | Method for synthesizing sapo molecular sieve by solvothermal method |
SG2013050968A SG191421A1 (en) | 2010-12-29 | 2011-06-24 | Solvothermal synthesis process of sapo molecular sieves and catalysts prepared thereby |
BR112013016489A BR112013016489B1 (pt) | 2010-12-29 | 2011-06-24 | processo de síntese solvotérmico de peneiras moleculares. |
JP2013546566A JP5667311B2 (ja) | 2010-12-29 | 2011-06-24 | Sapo分子篩の溶剤熱合成方法及びそれにより調製された触媒 |
KR1020137019783A KR101461541B1 (ko) | 2010-12-29 | 2011-06-24 | Sapo 분자체의 용매열 합성 공정 및 이에 의하여 제조된 촉매들 |
DK11852524.5T DK2660203T3 (en) | 2010-12-29 | 2011-06-24 | PROCEDURE FOR SYNTHETIZING SAPO MOLECULE SIGNS USING A SOLVOTERMAL PROCEDURE |
AU2011349908A AU2011349908B2 (en) | 2010-12-29 | 2011-06-24 | Method for synthesizing SAPO molecular sieve by solvothermal method and catalyst prepared thereby |
ZA2013/05421A ZA201305421B (en) | 2010-12-29 | 2013-07-18 | Solvothermal synthesis process of sapo molecular sieves and catalysts prepared thereby |
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CN (2) | CN102530987A (zh) |
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2010
- 2010-12-29 CN CN2010106105155A patent/CN102530987A/zh active Pending
- 2010-12-29 CN CN201510455783.7A patent/CN105110348A/zh active Pending
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- 2011-06-24 WO PCT/CN2011/076332 patent/WO2012088854A1/zh active Application Filing
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CN1351960A (zh) * | 2000-11-08 | 2002-06-05 | 中国石油化工股份有限公司 | 一种硅磷酸铝分子筛及其制备方法 |
CN1488579A (zh) * | 2002-10-10 | 2004-04-14 | 中国石油化工股份有限公司 | 一种硅磷酸铝分子筛及其制备方法 |
CN101121529A (zh) * | 2006-08-08 | 2008-02-13 | 中国科学院大连化学物理研究所 | 一种磷硅铝sapo-34分子筛的快速合成方法 |
CN101121530A (zh) * | 2006-08-08 | 2008-02-13 | 中国科学院大连化学物理研究所 | 骨架富含Si(4Al)结构的SAPO-34分子筛合成方法 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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AU2012381962B2 (en) * | 2012-06-08 | 2015-08-27 | Dalian Institute Of Chemical Physics,Chinese Academy Of Sciences | Metal silicoaluminophosphate molecular sieve having RHO skeleton structure and preparation process therefor |
JP2015533765A (ja) * | 2012-09-26 | 2015-11-26 | ダリアン インスティテュート オブ ケミカル フィジックス,チャイニーズ アカデミー オブ サイエンシズ | Sapo−34分子篩及びその合成方法 |
JP2019001707A (ja) * | 2013-08-05 | 2019-01-10 | 三菱ケミカル株式会社 | ゼオライト及びその製造方法と用途 |
CN110817898A (zh) * | 2018-08-13 | 2020-02-21 | 中国科学院大连化学物理研究所 | 一种具有ats骨架结构的磷酸硅铝分子筛及其制备方法和应用 |
CN110817898B (zh) * | 2018-08-13 | 2021-09-03 | 中国科学院大连化学物理研究所 | 一种具有ats骨架结构的磷酸硅铝分子筛及其制备方法和应用 |
CN114011457A (zh) * | 2021-12-07 | 2022-02-08 | 万华化学集团股份有限公司 | 一种对乙氧基苯酚的制备方法 |
CN114011457B (zh) * | 2021-12-07 | 2023-09-19 | 万华化学集团股份有限公司 | 一种对乙氧基苯酚的制备方法 |
CN114988430A (zh) * | 2022-06-06 | 2022-09-02 | 山西大学 | 一种纳米棒状zsm-23分子筛的合成方法 |
CN114988430B (zh) * | 2022-06-06 | 2024-03-12 | 山西大学 | 一种纳米棒状zsm-23分子筛的合成方法 |
Also Published As
Publication number | Publication date |
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JP5667311B2 (ja) | 2015-02-12 |
EP2660203A4 (en) | 2017-04-12 |
JP2014506227A (ja) | 2014-03-13 |
AU2011349908B2 (en) | 2014-11-27 |
DK2660203T3 (en) | 2018-11-26 |
CN105110348A (zh) | 2015-12-02 |
EP2660203A1 (en) | 2013-11-06 |
SG191421A1 (en) | 2013-07-31 |
US20130280161A1 (en) | 2013-10-24 |
MY157590A (en) | 2016-06-30 |
BR112013016489B1 (pt) | 2020-04-07 |
CN102530987A (zh) | 2012-07-04 |
BR112013016489A2 (pt) | 2016-09-27 |
EP2660203B1 (en) | 2018-08-22 |
US9168516B2 (en) | 2015-10-27 |
KR101461541B1 (ko) | 2014-12-02 |
ZA201305421B (en) | 2014-10-29 |
KR20130108653A (ko) | 2013-10-04 |
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