CN111974455A - Catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11@PC - Google Patents

Catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11@PC Download PDF

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Publication number
CN111974455A
CN111974455A CN202010822716.5A CN202010822716A CN111974455A CN 111974455 A CN111974455 A CN 111974455A CN 202010822716 A CN202010822716 A CN 202010822716A CN 111974455 A CN111974455 A CN 111974455A
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China
Prior art keywords
pcumo
catalyst
cyclooctene
cyclododecene
epoxidation
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CN202010822716.5A
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Chinese (zh)
Inventor
娄大伟
邢树宇
高文秀
吕杰琼
王集思
肖洋
鲁方洲
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Jilin Institute of Chemical Technology
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Jilin Institute of Chemical Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/1616Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts
    • B01J31/1625Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts immobilised by covalent linkages, i.e. pendant complexes with optional linking groups
    • B01J31/1633Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts immobilised by covalent linkages, i.e. pendant complexes with optional linking groups covalent linkages via silicon containing groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/1691Coordination polymers, e.g. metal-organic frameworks [MOF]
    • B01J35/613
    • B01J35/633
    • B01J35/647
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D301/00Preparation of oxiranes
    • C07D301/02Synthesis of the oxirane ring
    • C07D301/03Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/06Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the liquid phase
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D303/00Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02Compounds containing oxirane rings
    • C07D303/04Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms

Abstract

The invention discloses a catalyst PCuMo for catalyzing oxidation reaction of cyclooctene and cyclododecene11The preparation method of (1). The method comprises the following steps: copper ion substituted phosphomolybdic acid PCuMo11Preparation of (2) and mixing of PCuMo11Obtaining PCuMo on loaded covalent organic framework material PC11A method of @ PC novel composite material; in addition, the invention uses PCuMo11@ PC is used to catalyze the oxygen epoxidation of cyclooctene and cyclododecene. The method has the characteristics of simple operation, economy, environmental protection, good catalytic performance and the like, and the prepared novel composite material PCuMo11@ PC is a highly efficient and environmentally friendly heterogeneous catalyst for olefin epoxidation.

Description

Catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11@PC
Technical Field
The invention belongs to the technical field of heterogeneous catalytic materials, and particularly relates to a preparation method of covalent organic framework material loaded copper ions for replacing phosphomolybdic acid, and cyclooctene and cyclododecene epoxidation reaction are catalyzed.
Background
The epoxy compound is an important intermediate product with wide application in chemical industry, and is widely applied to the fields of medicines, materials, chemical industry and the like. Olefin epoxidation reaction is a main source for producing epoxy compounds, wherein methods such as a halohydrin method and a peracid method are used for synthesizing the olefin epoxy compounds, but the used oxidant has the problems of environmental pollution, equipment corrosion, complex production, low yield, high energy consumption and the like. To ameliorate the above problems, many emerging catalysts have been developed for olefin epoxidation. CN110433826A utilizes a coprecipitation method to prepare a single-atom gold catalyst for catalyzing the epoxidation reaction of styrene by taking air as an oxidant. Although the catalytic performance is good and the stability is good, the gold is expensive and the energy consumption is high; CN110694676A discloses a mesoporous catalyst of TUD-1 doped with lanthanide metal, which can catalyze C in alkyl hydrogen peroxide solution3-C10An alkene or cycloalkene of (a). The preparation process of the catalyst is complex and takes a long time, which is not beneficial to industrial production.
Heteropolyacids are oxygen-containing polyacid green catalysts composed of heteroatoms (such as P, Si, Fe, Co, etc.) and polyatomic atoms (such as Mo, W, V, Nb, Ta, etc.). Because of the unique acidity, quasi-liquid phase behavior, and multiple functions of heteropoly acids, they are widely regarded by researchers in the field of catalytic research and olefin epoxidation. CN106975522A develops a phosphomolybdotungstic heteropoly acid catalyst and catalyzes olefin epoxidation reaction by taking tert-butyl hydroperoxide as an oxidant, wherein the tert-butyl hydroperoxide pollutes the environment and has higher energy consumption.
The invention utilizes cheap and easily-obtained transition metal copper substituted Keggin type phosphomolybdic heteropoly acid to prepare the olefin epoxidation catalyst PCuMo with excellent performance11@ PC, this catalyst can utilize oxygen direct catalysis cyclooctene and cyclododecene, and the preparation process of catalyst is simple, low in production cost and catalysis process green have popularization and application and worth.
Disclosure of Invention
The invention aims to provide a catalyst which is economic and green, is easy to operate and can catalyze the epoxidation reaction of cyclooctene and cyclododecene by taking oxygen as an oxygen source with high efficiency. The catalyst is a heterogeneous catalytic material obtained by taking a micro-mesoporous covalent organic framework material PC as a carrier and immobilizing copper-substituted phosphomolybdic acid.
In order to achieve the purpose, the invention adopts the following technical scheme:
catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11The preparation method of @ PC is realized by the following steps:
(1) preparation of covalent organic framework material PC: dissolving potassium carbonate, cyanuric chloride and anhydrous piperazine into a 1, 4-dioxane solvent, heating the mixture at constant temperature, decompressing and filtering after the reaction is finished, washing a filter cake by acetone, tetrahydrofuran and dichloromethane, and drying in vacuum to obtain yellow powder PC;
(2) copper ion substituted phosphomolybdic acid PCuMo11The preparation of (1): PMo adjustment by addition of saturated sodium bicarbonate solution12The pH of the solution is 4-5, and then the solution is mixed with CuSO4·5H2Mixing O solution, stirring at constant temperature, standing to remove precipitated sodium sulfate impurity, and collecting PCuMo11A crystal;
(3) catalyst PCuMo11Preparation of @ PC: adding PCuMo into uniformly dispersed PC aqueous solution11Heating and stirring the aqueous solution at constant temperature, filtering, washing and drying in vacuum to obtain the novel composite material PCuMo11@PC。
Preferably, in the above-mentioned catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11The preparation method of @ PC comprises the steps of (1) mixing potassium carbonate, cyanuric chloride and anhydrous piperazine at a constant temperature of 100-.
Preferably, in the above-mentioned catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11The preparation method of @ PC, phosphomolybdic acid and CuSO in step (2)4· 5H2The mass ratio of O is 1 (0.5-3), the stirring temperature is constant at 45-50 deg.C, the time is 30-60min, and phosphomolybdic acid and CuSO are further preferably selected4· 5H2The mass ratio of O is 1:3, the stirring temperature is 50 ℃ at constant temperature, and the time is 60 min.
The beneficial effects of the above technical scheme are: the proper increase of the synthesis temperature and the temperature is beneficial to the increase of the product yield, and the CuSO4· 5H2An increased proportion of O increases the yield of phenyloxirane.
The invention also provides a method for applying the epoxidation reaction of cyclooctene and cyclododecene to the composite material of copper ion substituted phosphomolybdic acid loaded on covalent organic framework material PC, which comprises the following steps:
(1) adding catalyst, acetonitrile, isobutyraldehyde and olefin into a double-neck bottle, and introducing molecular oxygen of 10 mL/min. The olefin is cyclooctene and cyclododecene;
(2) the reaction temperature is 40-70 ℃, after a period of reaction, a proper amount of reaction mixture is taken out, filtered by a filter membrane and subjected to gas chromatography detection.
According to the scheme, compared with the prior art, the catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene is provided11The preparation method of the @ PC composite material and the application of the @ PC composite material in the epoxy epoxidation reaction of cyclooctene and cyclododecene have the following advantages:
(1) in the aspect of catalyst preparation, the prepared raw material is economical and easy to obtain, and the catalytic active substance PCuMo11The price is low and the product is easy to get, and the micro-mesoporous carrier PC has rich nitrogen content, so that the copper-substituted phosphomolybdic acid active substance is more firmly loaded;
(2) in the aspect of catalyzing epoxidation reaction of cyclooctene and cyclododecene, cheap, green and environment-friendly oxygen is used as an oxygen source, the catalytic effect is good, and the prepared novel catalyst has high reactivity and selectivity in the epoxidation reaction of cyclooctene and cyclododecene.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 accompanying drawing is the PCuMo of the invention11@ PC.
FIG. 2 is a schematic view of the PCuMo of the present invention11PC and PCuMo11The XRD pattern of @ PC.
FIG. 3 is a drawing showing (a) PC and (b) PCuMo of the present invention11The nitrogen adsorption desorption curve and the pore size distribution diagram of @ PC, and the relevant data are listed in attached Table 1.
FIG. 4 is a drawing showing PC and PCuMo of the present invention11Surface area, pore size and pore volume of @ PC.
FIG. 5 is a schematic view of the PCuMo of the present invention11@ PC catalyzes the evaluation of cyclooctene and cyclododecene.
Detailed Description
In order to make the invention more clear and complete, the following examples are only some examples of the invention, and all equivalent changes and modifications made by the following examples are included in the scope of the present invention.
Example 1
Adding 20 mg PCuMo into a double-neck bottle11@ PC catalyst, 10 mL acetonitrile, 2 mmol cyclooctene and 6 mmol isobutyraldehyde, introducing 10 mL/min oxygen, and reacting at 60 ℃ for 1 h; a small amount of solution is taken out of the flask, filtered by a filter membrane and subjected to gas chromatography, the conversion rate is 98 percent, and the selectivity is>99%。
Example 2
Adding 20 mg PCuMo into a double-neck bottle11@ PC catalyst, 10 mL acetonitrile, 2 mmol cyclododecene and 6 mmol isobutyraldehyde, introducing 10 mL/min oxygen, and reacting at 60 ℃ for 1 h; a small amount of solution is taken out of the flask, filtered by a filter membrane and subjected to gas chromatography, the conversion rate is 95 percent, and the selectivity is>99%。
In addition, the invention also relates to PCuMo11Raw Material of @ PC and PCuMo11The @ PC catalyst is subjected to infrared spectrum test, XRD (X-ray diffraction) and nitrogen adsorption and desorption curves and pore size distribution, refer to figures 1-3, and figure 1 shows the PCuMo in the invention11The infrared spectrogram of @ PC,in the catalyst PCuMo11In @ PC, the main framework structure of the carrier PC is maintained; FIG. 2 shows PCuMo of the present invention11XRD spectrogram of @ PC and catalyst PCuMo11@ PC maintains the main framework structure of the carrier PC; FIG. 3 and Table 1 show PCuMo of the present invention11Compared with the surface area, the pore diameter and the pore volume of the carrier PC, the surface area, the pore diameter and the pore volume of the catalyst PCuMo11@ PC are all reduced, and the result proves that the PCuMo11Has been loaded onto the carrier PC, while at the same time PCuMo11Has chemical interaction with the carrier PC.
The above description is only a preferred embodiment of the present invention, and the raw materials, the ratio of each component, the preparation method, etc. of the catalyst of the present invention are all within the protection and disclosure of the present invention. Equivalents and modifications by way of example are intended to be included within the scope of the present invention.

Claims (9)

1. Catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11@ PC ", characterized by comprising the steps of:
(1) preparation of covalent organic framework material PC: dissolving potassium carbonate, cyanuric chloride and anhydrous piperazine into a 1, 4-dioxane solvent, heating the mixture at constant temperature, decompressing and filtering after the reaction is finished, washing a filter cake by acetone, tetrahydrofuran and dichloromethane, and drying in vacuum to obtain yellow powder PC;
(2) copper ion substituted phosphomolybdic acid PCuMo11The preparation of (1): PMo adjustment by addition of saturated sodium bicarbonate solution12The pH of the solution is 4-5, and then the solution is mixed with CuSO4·5H2Mixing O solution, stirring at constant temperature, standing to remove precipitated sodium sulfate impurity, and collecting PCuMo11A crystal;
(3) catalyst PCuMo11Preparation of @ PC: adding PCuMo into uniformly dispersed PC aqueous solution11Heating and stirring the aqueous solution at constant temperature, filtering, washing and drying in vacuum to obtain the novel composite material PCuMo11@PC。
2. According to claim1 the catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11@ PC, characterized by: the mass ratio of potassium carbonate, cyanuric chloride and anhydrous piperazine in step (1) is 6:2: 3.
3. The catalyst PCuMo for catalyzing epoxidation of cyclooctene and cyclododecene according to claim 111@ PC, characterized by: in the step (1), the constant-temperature stirring temperature is 100-.
4. The catalyst PCuMo for catalyzing epoxidation of cyclooctene and cyclododecene according to claim 111@ PC, characterized by: the yield of PC in the step (1) is 70-75%.
5. The catalyst PCuMo for catalyzing epoxidation of cyclooctene and cyclododecene according to claim 111@ PC, characterized by: phosphomolybdic acid and CuSO in step (2)4· 5H2The mass ratio of O is 1 (0.5-3).
6. The catalyst PCuMo for catalyzing epoxidation of cyclooctene and cyclododecene according to claim 111@ PC, characterized by: in the step (2), stirring at constant temperature of 45-50 ℃ for 30-60 min.
7. The catalyst PCuMo for catalyzing epoxidation of cyclooctene and cyclododecene according to claim 111@ PC, characterized by: PCuMo in step (3)11The mass ratio of the PC to the solid is 1 (0.5-5), after the reaction is finished, the mixture is separated by vacuum filtration, the solid product is washed by ethanol and deionized water for 3-5 times, and the solid product is dried in vacuum at 80 ℃ for more than 12 hours.
8. A composite material comprising copper ion-substituted phosphomolybdic acid loaded on covalent organic framework material PC prepared by the method of any one of claims 1 to 7.
9. The composite PCuMo material of claim 8, wherein the covalent organic framework material PC is loaded with copper ion-substituted phosphomolybdic acid11The application of @ PC in the epoxidation reaction of cyclooctene and cyclododecene oxygen is characterized in that: the method comprises the following steps:
(1) adding a composite material, acetonitrile, isobutyraldehyde, cyclooctene or cyclododecene, wherein the composite material is prepared by loading copper ion-substituted phosphomolybdic acid serving as a catalyst onto covalent organic framework material PC, and introducing 10 mL/min molecular oxygen into a double-necked bottle, and reacting for 1h at constant temperature of 40-70 ℃ to obtain a mixture;
(2) the appropriate amount of reaction mixture was removed, filtered through a filter membrane and subjected to gas chromatography.
CN202010822716.5A 2020-08-17 2020-08-17 Catalyst PCuMo for catalyzing epoxidation reaction of cyclooctene and cyclododecene11@PC Pending CN111974455A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113731454A (en) * 2021-09-22 2021-12-03 吉林化工学院 Preparation and catalytic application of nitrogen-doped carbon composite material loaded with heteropoly acid
CN113751068A (en) * 2021-09-22 2021-12-07 吉林化工学院 Supported polyoxometallate material for preparing aniline by nitrobenzene hydrogenation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES316484A1 (en) * 1964-08-13 1965-11-16 Halcon International Inc Procedure for the preparation of olefin oxides. (Machine-translation by Google Translate, not legally binding)
JP2008179644A (en) * 2008-02-05 2008-08-07 Daicel Chem Ind Ltd Method for producing epoxy compound
CN107362829A (en) * 2016-05-13 2017-11-21 中国科学院大连化学物理研究所 Covalent organic frame bimetallic catalyst of support type and its preparation method and application
CN109317207A (en) * 2018-11-02 2019-02-12 吉林化工学院 It is a kind of to be efficiently recycled olefin epoxidation catalysts and its preparation method and application
CN109317206A (en) * 2018-10-15 2019-02-12 吉林化工学院 A kind of epoxidation of styrene catalyst and its preparation method and application

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES316484A1 (en) * 1964-08-13 1965-11-16 Halcon International Inc Procedure for the preparation of olefin oxides. (Machine-translation by Google Translate, not legally binding)
JP2008179644A (en) * 2008-02-05 2008-08-07 Daicel Chem Ind Ltd Method for producing epoxy compound
CN107362829A (en) * 2016-05-13 2017-11-21 中国科学院大连化学物理研究所 Covalent organic frame bimetallic catalyst of support type and its preparation method and application
CN109317206A (en) * 2018-10-15 2019-02-12 吉林化工学院 A kind of epoxidation of styrene catalyst and its preparation method and application
CN109317207A (en) * 2018-11-02 2019-02-12 吉林化工学院 It is a kind of to be efficiently recycled olefin epoxidation catalysts and its preparation method and application

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
SONG XIAOJING 等: "Epoxidation of olefins with oxygen/isobutyraldehyde over transition-metal-substituted phosphomolybdic acid on SBA-15", 《CATALYSIS TODAY》 *
XIWEI HU 等: "Two-dimensional covalent organic frameworks as self-template derived nitrogen-doped carbon nanosheets for eco-friendly metal-free catalysis", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 *
王静: "咪唑功能化有机—无机杂化材料固载磷钼杂多化合物催化剂的制备及烯烃环氧化性能", 《中国博士学位论文全文数据库工程科技Ⅰ辑》 *
高文秀 等: "分子氧环氧化烯烃多相催化剂PCuMo11/富氮类共价有机骨架材料的制备及应用", 《复合材料学》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113731454A (en) * 2021-09-22 2021-12-03 吉林化工学院 Preparation and catalytic application of nitrogen-doped carbon composite material loaded with heteropoly acid
CN113751068A (en) * 2021-09-22 2021-12-07 吉林化工学院 Supported polyoxometallate material for preparing aniline by nitrobenzene hydrogenation
CN113731454B (en) * 2021-09-22 2023-05-05 吉林化工学院 Preparation and catalytic application of heteropolyacid-loaded nitrogen-doped carbon composite material

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Application publication date: 20201124