[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN106517240B - The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent - Google Patents

The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent Download PDF

Info

Publication number
CN106517240B
CN106517240B CN201610932017.XA CN201610932017A CN106517240B CN 106517240 B CN106517240 B CN 106517240B CN 201610932017 A CN201610932017 A CN 201610932017A CN 106517240 B CN106517240 B CN 106517240B
Authority
CN
China
Prior art keywords
zsm
flakes
zeolite molecular
organic formwork
molecular sieves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610932017.XA
Other languages
Chinese (zh)
Other versions
CN106517240A (en
Inventor
吴勤明
孟祥举
肖丰收
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN201610932017.XA priority Critical patent/CN106517240B/en
Publication of CN106517240A publication Critical patent/CN106517240A/en
Application granted granted Critical
Publication of CN106517240B publication Critical patent/CN106517240B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02Crystalline 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
    • C01B39/42Type ZSM-12
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/61Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

The present invention relates to Molecular Sieve Morphologies to regulate and control preparation method, it is desirable to provide a method of with 12 zeolite molecular sieves of single small molecule organic formwork agent synthesis flakes ZSM.Including step:Water, silicon source, alkali source and template are mixed, or continue to mix to uniform after adding silicon source again;It is subsequently placed in reaction kettle, crystallization products therefrom is filtered, dried to get to the original powder of 12 zeolite molecular sieves of ZSM.The present invention not only extends the type of the organic formwork agent of synthesis 12 zeolites of ZSM, but also synthesized product has the flakes pattern for being different from other products.Product not only maintains good crystallinity and purity, but also the novel in shape of obtained product, from having not been reported.The present invention has inspiration meaning for controlling the pattern of zeolite molecular sieve.

Description

Flakes ZSM-12 zeolite molecular sieves are synthesized with single small molecule organic formwork agent Method
Technical field
The invention belongs to Molecular Sieve Morphologies to regulate and control preparation method, more particularly to one kind is with single small molecule organic formwork structure The method for synthesizing flakes ZSM-12 zeolite molecular sieves.
Background technology
ZSM-12 zeolites are a kind of silica-rich zeolites with one-dimensional twelve-ring pore passage structure.It by Rosinski and Rubin et al. is synthesized for the first time 1974, and pore size isIt has during isomerization, hydrocarbon cracking and conversion etc. There is excellent catalytic performance.In recent decades, researcher has done research work in large quantities in the synthesis of ZSM-12 zeolites.Its It is middle to find that the template of synthesis ZSM-12 zeolites is various, such as tetraethyl ammonium, benzyltrimethylammon.um, bi-quaternary ammonium salt etc..These Use of the organic formwork agent in the synthesis of ZSM-12 zeolites can obtain the product of different-shape, can obtain rodlike, spherical, bulk Pattern.Catalytic performance can be caused prodigious influence by being typically different the product of pattern.
Therefore, have great importance come the pattern for regulating and controlling ZSM-12 zeolites by design template agent.
Invention content
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, it is organic to design a kind of single small molecule The method that formwork structure synthesizes flakes ZSM-12 zeolite molecular sieves, and the design of template is by controlling its intramolecular group Angle to be unfolded.
To solve technical problem, solution of the invention is:
There is provided it is a kind of with single small molecule organic formwork agent synthesize flakes ZSM-12 zeolite molecular sieves method, including with Lower step:
Water, silicon source, alkali source and template are mixed, or continue to mix to uniform after adding silicon source again;It is subsequently placed in anti- It answers in kettle, in 140~200 DEG C of crystallization 1d~6d, product filters, dries to get to the original powder of ZSM-12 zeolite molecular sieves;
The molecular structural formula of the template is shown below:
Controlling the additive amount of each reaction raw materials makes its molar ratio range be:15~40H2O∶SiO2: 0~0.01Al2O3∶ 0.06~0.14 (Na2O or K2O): 0.1~0.3 template.
In the present invention, source of aluminium is aluminum sulfate or sodium metaaluminate;Silicon source is the Ludox that dioxide-containing silica is 30%; Alkali source is potassium hydroxide or sodium hydroxide.
The present invention also provides a kind of method for the template for preparing and being synthesized for flakes ZSM-12 zeolite molecular sieves, packets Include step:To 100g to 200ml ethyl alcohol is added in benzyl dichloride, 117g crassitudes are added, are stirred back in 80 DEG C of oil baths Stream reaction 2d;After reaction, ether is added into reaction product, the white solid of generation is precipitated through filtering, drying, as mould Plate agent.
In terms of existing technologies, the beneficial effects of the present invention are:
1, ZSM-12 zeolite molecular sieves are synthesized by using novel single small molecule organic formwork structure, not only extends conjunction At the type of the organic formwork agent of ZSM-12 zeolites, and synthesized product has the flakes shape for being different from other products Looks.
2, compared with prior art, this product not only maintains good crystallinity and purity, but also obtained product Novel in shape, from having not been reported.The present invention has inspiration meaning for controlling the pattern of zeolite molecular sieve.
Description of the drawings
Fig. 1:The XRD spectra of the ZSM-12 zeolites of novel single small molecule organic formwork synthesis.
Fig. 2:The ZSM-12 zeolites stereoscan photograph (low power) of novel single small molecule organic formwork synthesis.
Fig. 3:The ZSM-12 zeolites stereoscan photograph (high power) of novel single small molecule organic formwork synthesis.
Specific implementation mode
Single small molecule organic formwork agent (hereafter being referred to symbol T) used in the present invention, preparation method:By 100g Benzyl dichloride is placed in 500ml round-bottomed flasks, 200ml ethyl alcohol is added, 117g crassitudes are then added, in 80 DEG C of oil baths In be stirred at reflux reaction 2d, after reaction, into reaction product be added ether producible white solid precipitate, process Filter, drying can be obtained required template.
The molecular structural formula of template is as follows:
Embodiment 1:Novel single small molecule organic formwork synthesizes flakes ZSM-12 zeolites
By 8.12g H2O, 0.046g Al2(SO4)3·18H2(T, structure is such as O, 0.15g NaOH, 1.0g organic formwork agent Fig. 1) and the Ludox of 3.32g dioxide-containing silicas 30% is placed in beaker and stirs evenly, and is then added to this gel poly- In tetrafluoroethene stainless steel cauldron, 160 DEG C of crystallization 3d, that is, complete crystallizations, product filters, and product is obtained after drying.Reaction raw materials Proportioning it is as follows:
35H2O:SiO2:0.0042Al2O3:0.11Na2O:0.2T
Through X-ray diffraction analysis, its structure is to belong to the ZSM-12 zeolite molecular sieves (Fig. 2) of MTW, and pass through scanning electricity Mirror photo can be seen that the pattern (low power) of flakes is presented in synthesized product, and the flakes pattern of product is by stick It intersects to be formed (high power).Attached drawing 2-3 is that novel single small molecule organic formwork synthesizes flakes ZSM-12 zeolites Stereoscan photograph (SEM).
Embodiment 2:Novel single small molecule organic formwork synthesizes total silicon flakes ZSM-12 zeolites
By 2.2g H2O, 0.18g NaOH, 0.55g organic formwork agent (T, structure such as Fig. 1) and 3.32g silica contain The Ludox of amount 30%, which is placed in beaker, to stir evenly, and then this gel is added in polytetrafluoroethylene (PTFE) stainless steel cauldron, 140 DEG C of crystallization 6d, that is, complete crystallizations, product filter, and product is obtained after drying.The proportioning of reaction raw materials is as follows:
15H2O:SiO2:0.14Na2O:0.1T
Embodiment 3:Novel single small molecule organic formwork high―temperature nuclei flakes ZSM-12 zeolites
By 9.67g H2O, 0.039g NaAlO2, 0.07g NaOH, 1.6g organic formwork agent (T, structure such as Fig. 1) and The Ludox of 3.32g dioxide-containing silicas 30%, which is placed in beaker, to stir evenly, this gel is then added to polytetrafluoroethylene (PTFE) In stainless steel cauldron, 200 DEG C of crystallization 1d, that is, complete crystallizations, product filters, and product is obtained after drying.Reaction raw materials are matched such as Under:
40H2O:SiO2:0.01Al2O3:0.06Na2O:0.3T
Embodiment 4:Novel single small molecule organic formwork high―temperature nuclei total silicon flakes ZSM-5 zeolite
By 8.12g H2O, 0.16g KOH, 1.1g organic formwork agent (T, structure such as Fig. 1) and 3.32g silica contain The Ludox of amount 30%, which is placed in beaker, to stir evenly, and then this gel is added in polytetrafluoroethylene (PTFE) stainless steel cauldron, 200 DEG C of crystallization 1d, that is, complete crystallizations, product filter, and product is obtained after drying.The proportioning of reaction raw materials is as follows:
35H2O:SiO2:0.07K2O:0.2T
The above is only several case study on implementation of the present invention, not does limitation in any form to the present invention, Although the present invention is disclosed as above with preferable case study on implementation, however, it is not intended to limit the invention, any skill for being familiar with this profession Art personnel, without departing from the scope of the present invention, when structure and technology contents using the disclosure above make it is a little Change or be modified to the equivalence enforcement cases of equivalent variations.But every content without departing from technical solution of the present invention, foundation The technical spirit of the present invention still belongs to the present invention to any simple modification, equivalent change and modification made by the above case study on implementation In technical proposal scope.

Claims (2)

1. a kind of method synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent, which is characterized in that Include the following steps:
Water, silicon source, alkali source and template are mixed, or continue to mix to uniform after adding silicon source again;It is subsequently placed in reaction kettle In, in 140~200 DEG C of crystallization 1d~6d, product filters, dries to get to the original powder of ZSM-12 zeolite molecular sieves;
The molecular structural formula of the template is shown below:
Controlling the additive amount of each reaction raw materials makes its molar ratio range be:15~40H2O∶SiO2: 0~0.01Al2O3: 0.06~ 0.14Na2O or K2O: 0.1~0.3 template.
2. according to the method described in claim 1, it is characterized in that, source of aluminium is aluminum sulfate or sodium metaaluminate;Silicon source is two The Ludox that silica content is 30%;Alkali source is potassium hydroxide or sodium hydroxide.
CN201610932017.XA 2016-10-25 2016-10-25 The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent Active CN106517240B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610932017.XA CN106517240B (en) 2016-10-25 2016-10-25 The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610932017.XA CN106517240B (en) 2016-10-25 2016-10-25 The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent

Publications (2)

Publication Number Publication Date
CN106517240A CN106517240A (en) 2017-03-22
CN106517240B true CN106517240B (en) 2018-07-24

Family

ID=58292723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610932017.XA Active CN106517240B (en) 2016-10-25 2016-10-25 The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent

Country Status (1)

Country Link
CN (1) CN106517240B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2737525C1 (en) * 2019-06-27 2020-12-01 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет имени М.В. Ломоносова" (МГУ) Method of producing zeolite with mtw structure (zsm-12 type)
RU2745824C1 (en) * 2020-06-28 2021-04-01 Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) Method for producing zeolites of the zsm-12 type with the mtw structure
RU2773945C1 (en) * 2021-10-05 2022-06-14 Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) Method for obtaining a composite material with a hierarchical structure

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107032368B (en) * 2017-04-13 2019-08-06 上海交通大学 A kind of MTW Zeolitic NanoRods and preparation method thereof with symbiotic structure
CN109437231A (en) * 2018-11-28 2019-03-08 东莞理工学院 A kind of preparation method of flakes ZSM-5 molecular sieve
RU2711757C1 (en) * 2019-07-31 2020-01-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет имени М.В. Ломоносова" (МГУ) Method of producing zsm-12 flake zeolite with mtw structure
RU2731469C1 (en) * 2019-07-31 2020-09-03 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет имени М.В. Ломоносова" (МГУ) Method of producing zsm-12 flake zeolite with mtw structure
CN116022805A (en) * 2021-10-26 2023-04-28 中国石油化工股份有限公司 Small-grain ZSM-12 molecular sieve and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391785A (en) * 1981-12-21 1983-07-05 Mobil Oil Corporation Preparation of ZSM-12 type zeolites
US4482531A (en) * 1983-04-29 1984-11-13 Mobil Oil Corporation Synthesis of ZSM-12 zeolite
US4559213A (en) * 1983-04-29 1985-12-17 Mobil Oil Corporation Synthesis of ZSM-12 zeolite
CN104437606A (en) * 2013-09-24 2015-03-25 中国石油化工股份有限公司 ZSM-12 molecular sieve of multilayer structure and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391785A (en) * 1981-12-21 1983-07-05 Mobil Oil Corporation Preparation of ZSM-12 type zeolites
US4482531A (en) * 1983-04-29 1984-11-13 Mobil Oil Corporation Synthesis of ZSM-12 zeolite
US4559213A (en) * 1983-04-29 1985-12-17 Mobil Oil Corporation Synthesis of ZSM-12 zeolite
CN104437606A (en) * 2013-09-24 2015-03-25 中国石油化工股份有限公司 ZSM-12 molecular sieve of multilayer structure and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2737525C1 (en) * 2019-06-27 2020-12-01 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет имени М.В. Ломоносова" (МГУ) Method of producing zeolite with mtw structure (zsm-12 type)
RU2745824C1 (en) * 2020-06-28 2021-04-01 Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) Method for producing zeolites of the zsm-12 type with the mtw structure
RU2773945C1 (en) * 2021-10-05 2022-06-14 Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) Method for obtaining a composite material with a hierarchical structure

Also Published As

Publication number Publication date
CN106517240A (en) 2017-03-22

Similar Documents

Publication Publication Date Title
CN106517240B (en) The method for synthesizing flakes ZSM-12 zeolite molecular sieves with single small molecule organic formwork agent
CN107758691B (en) The preparation method of high silicon CHA types SSZ-13 molecular sieves
CN106542539B (en) The method for synthesizing macropore EMM-23 zeolite molecular sieves with polyquaternium template
TWI745283B (en) A method for the synthesis of a type of fer/mor composite molecular sieve
CN102745708B (en) Synthetic method of mesoporous-microporous molecular sieve with improved hydrothermal stability
CN101172243B (en) Mesoporous material/micropore molecular sieve composite material and preparation method thereof
CN106698456B (en) The method of the line style polyquaternary amine alkali organic formwork agent one-step synthesis method molecular sieves of ITQ-13 containing aluminium
CN109311687A (en) The method of continuous synthetic zeolite material
CN108217682A (en) The method of method synthesis Silicon-rich ZSM-48 zeolite molecular sieves is oriented to using crystal seed
CN107555446A (en) A kind of preparation method of multi-stage porous Y type molecular sieve
TW201114685A (en) Method of preparing ZSM-5 zeolite using nanocrystalline ZSM-5 seeds
CN102311124B (en) Method for preparing Silicalite-1/ZSM-5 composite molecular sieve
CN103626203B (en) A kind of preparation of nanometer of molecular sieve of ZSM 5
CN109701619A (en) SSZ-13/SSZ-39 composite molecular sieves and its synthetic method
CN103172081A (en) High-molecular organic polymer template synthesized compound pore structure molecular sieve and preparation method thereof
CN108190913A (en) The method of method synthesis Silicon-rich ZSM-5 zeolite molecular sieve is oriented to using crystal seed
CN105858682A (en) Method for utilizing ZSM-11 molecular sieve synthesizing mother liquor
CN104828837B (en) A kind of method of synthesizing submicron NaA molecular sieve
Sumari et al. Effect of temperature synthesis on structural behaviours of NaY zeolite using local sand as a silica source
CN106587102A (en) Synthetic method of ZSM-12 type zeolite molecular sieve
CN108217683A (en) The method of method synthesis Silicon-rich ZSM-23 zeolite molecular sieves is oriented to using crystal seed
CN107010641A (en) A kind of zeolite molecular sieves of three-level hole shell core ZSM 5 and preparation method thereof
CN108014841A (en) Cu-SSZ-13/ZSM-5 composite molecular sieves and its synthetic method
CN106946268B (en) A kind of MOR/ZSM-35 composite molecular screen and its synthetic method
CN109279621A (en) A method of using general ion thermal method synthesis of silica-base zeolite molecular sieve

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant