CN118026968A - High-purity furan diether and preparation method thereof - Google Patents
High-purity furan diether and preparation method thereof Download PDFInfo
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- CN118026968A CN118026968A CN202410132375.7A CN202410132375A CN118026968A CN 118026968 A CN118026968 A CN 118026968A CN 202410132375 A CN202410132375 A CN 202410132375A CN 118026968 A CN118026968 A CN 118026968A
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 11
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 20
- DSLRVRBSNLHVBH-UHFFFAOYSA-N 2,5-furandimethanol Chemical compound OCC1=CC=C(CO)O1 DSLRVRBSNLHVBH-UHFFFAOYSA-N 0.000 claims description 18
- 238000002390 rotary evaporation Methods 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 17
- 239000012074 organic phase Substances 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 15
- 239000002028 Biomass Substances 0.000 claims description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 13
- 230000001588 bifunctional effect Effects 0.000 claims description 13
- 229910052726 zirconium Inorganic materials 0.000 claims description 13
- 239000012295 chemical reaction liquid Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 239000003463 adsorbent Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- NOEGNKMFWQHSLB-UHFFFAOYSA-N 5-hydroxymethylfurfural Chemical compound OCC1=CC=C(C=O)O1 NOEGNKMFWQHSLB-UHFFFAOYSA-N 0.000 claims description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- RJGBSYZFOCAGQY-UHFFFAOYSA-N hydroxymethylfurfural Natural products COC1=CC=C(C=O)O1 RJGBSYZFOCAGQY-UHFFFAOYSA-N 0.000 claims description 7
- 239000002274 desiccant Substances 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical group [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 150000002240 furans Chemical class 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000004090 dissolution Methods 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 22
- 239000000758 substrate Substances 0.000 abstract description 11
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000007142 ring opening reaction Methods 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 239000011949 solid catalyst Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- -1 2, 5-diisopropyl oxymethyl furan compound Chemical class 0.000 description 6
- 239000006227 byproduct Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000001299 aldehydes Chemical group 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229930184093 Furanether Natural products 0.000 description 1
- ILACEZQKVDMRMW-UHFFFAOYSA-N Furanether A Natural products C1C2=COC=C2C2C3CC(C)(C)CC3C1(C)O2 ILACEZQKVDMRMW-UHFFFAOYSA-N 0.000 description 1
- SEILDMUKBMYIEZ-UHFFFAOYSA-N Furfural diethyl acetal Chemical compound CCOC(OCC)C1=CC=CO1 SEILDMUKBMYIEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000000217 alkyl group Chemical class 0.000 description 1
- VQKFNUFAXTZWDK-UHFFFAOYSA-N alpha-methylfuran Natural products CC1=CC=CO1 VQKFNUFAXTZWDK-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- AYVZZPVZDDNTBP-UHFFFAOYSA-N ethoxyethane;furan Chemical compound CCOCC.C=1C=COC=1 AYVZZPVZDDNTBP-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000002663 humin Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/42—Singly bound oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Furan Compounds (AREA)
Abstract
The invention discloses a high-purity furan diether and a preparation method thereof, belonging to the technical field of catalysis and energy chemical industry. The method disclosed by the invention adopts a catalyst with relatively low reaction temperature and excellent selectivity to etherify furan substrates, removes acidic impurities and poor ring-opening reaction products through solvent extraction, and further removes water and adsorbs the poor polymerization products so as to produce the high-purity furan diether. The method can be used for reference of researchers, so that a large amount of purification work of furan diether products is saved, and the method is also expected to be used for producing furan diether standard products in a large scale.
Description
Technical Field
The invention belongs to the technical field of catalysis and energy chemical industry, and particularly relates to high-purity furan diether and a preparation method thereof.
Background
The conversion of biomass or its platform compound molecules into bio-based furanether fuels or additives with excellent properties is one of the hot spots of current research. Compared with the problem of poor stability caused by aldehyde functional groups in furan monoether (alkoxyfurfural) molecules, the furan diether has the advantages of greatly improved stability, higher energy density and more excellent oil properties. Currently, reports on this aspect mostly employ 5-hydroxymethylfurfural to make furan diethers, which typically require Lewis acids andSynergistic catalysis of acids.
However, it containsThe problem of poor stability of heterogeneous acid site catalysts is a well known and yet to be addressed challenge. In addition, it is also difficult to avoid the high temperatures that tend to partially polymerize furans substrates during the reaction. Because of the abundant functional groups (including hydroxyl, aldehyde, and furan structures) of the biomass platform compound molecules, the biomass platform compound can generate various types of intermediates or byproducts (including leaching/> in the catalyst) in the etherification processAcidic materials and non-detectable humins), the structure and polarity of these undesirable products are highly similar, and substitution of alkyl groups results in a substantial reduction in their ultraviolet absorption, and thus are not easily isolated and detected overall. These reasons have led to the current research of furandiethers, although continuously reported, none of the drug platforms has commercially available furandiether products or standards, which would be detrimental to further research by researchers (including quantification and characterization of the products and their downstream product development).
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the high-purity furan diether and the preparation method thereof, which are used for solving the technical problem that the high-purity furan diether cannot be prepared by the existing preparation method.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention discloses a preparation method of high-purity furan diether, which comprises the following steps:
S1: mixing a furan biomass platform compound, a zirconium-based bifunctional catalyst and an alcohol solvent, and stirring for reaction to obtain a reaction solution;
S2: filtering the reaction liquid in sequence, and performing rotary evaporation at low temperature to obtain concentrated liquid; extracting the concentrated solution to obtain an organic phase; the organic phase is subjected to post-treatment to obtain the high-purity furan diether.
Further, in S1, the furan type biomass platform compound is 2, 5-furandimethanol or 5-hydroxymethylfurfural; the alcohol solvent is ethanol or isopropanol.
Further, in S1, the reaction time is 30 min-5 h, and the reaction temperature is 90-130 ℃.
Further, in S1, the dosage ratio of the furan biomass platform compound, the zirconium-based bifunctional catalyst and the alcohol solvent is 1g: (0.15-4.25) g: (6-48) mL.
In the step S2, the extraction is carried out by adopting an organic solvent and water; the organic solvent is diethyl ether or ethyl acetate.
Further, in S2, the post-treatment of the organic phase includes a dehydration operation of the organic phase with a desiccant, then removing the polymerization product with an adsorbent, and finally spin-evaporating the solvent at a low temperature.
Further, the drying agent is molecular sieve or anhydrous sodium sulfate.
Further, the adsorbent is activated carbon, and the amount of the adsorbent is 1-3% of the mass of the added furan biomass platform compound.
The invention also discloses the high-purity furan diether prepared by the preparation method.
Further, the high purity furandiether has a purity of 97.8% or more.
Compared with the prior art, the invention has the following beneficial effects:
The invention discloses a preparation method of high-purity furan diether, which only needs to take biomass platform compound molecules as substrates to react, and can obtain the high-purity furan diether compound through extraction and adsorption, particularly, the product 2, 5-furan dimethanol obtained by hydrogenating 5-hydroxymethylfurfural is taken as the substrate to react under lower conditions, thereby greatly reducing the generation of bad byproducts and polymers which are not easy to detect, and greatly improving the yield of the product furan diether. Compared with the reports of the prior diether literature, the method has the advantages of low reaction temperature, short reaction time and extremely low byproduct content, and is suitable for producing high-purity furan diether products and standard substances. The purification method has simple operation steps and is expected to be applied to batch production of furan diether products.
Drawings
FIG. 1 is a mass spectrum identification result of furan diether product prepared by the invention;
Wherein: a-2, 5-diethoxymethyl furan; b-2, 5-diisopropyloxymethyl furan.
Detailed Description
So that those skilled in the art can appreciate the features and effects of the present invention, a general description and definition of the terms and expressions set forth in the specification and claims follows. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and in the event of a conflict, the present specification shall control.
The theory or mechanism described and disclosed herein, whether right or wrong, is not meant to limit the scope of the invention in any way, i.e., the present disclosure may be practiced without limitation to any particular theory or mechanism.
All features such as values, amounts, and concentrations that are defined herein in the numerical or percent ranges are for brevity and convenience only. Accordingly, the description of a numerical range or percentage range should be considered to cover and specifically disclose all possible sub-ranges and individual values (including integers and fractions) within the range.
Herein, unless otherwise indicated, the terms "comprising," including, "" containing, "" having, "or the like are intended to cover the meanings of" consisting of … … "and" consisting essentially of … …, "e.g.," a includes a "is intended to cover" a includes a and the other "and" a includes a only.
In this context, not all possible combinations of the individual technical features in the individual embodiments or examples are described in order to simplify the description. Accordingly, as long as there is no contradiction between the combinations of these technical features, any combination of the technical features in the respective embodiments or examples is possible, and all possible combinations should be considered as being within the scope of the present specification.
The invention provides a preparation method of high-purity furan diether, which comprises the following steps:
step one: the furan biomass platform compound and the zirconium-based bifunctional catalyst are added into (6-48) mL of corresponding alcohol solvent according to the mass ratio of 1:0.15-1:4.25, and stirred at the reaction temperature until the reaction time is reached;
Step two: filtering the reaction liquid obtained in the first step to remove the solid catalyst, then removing the solvent by rotary evaporation at low temperature, dissolving and extracting the concentrated solution by adopting an organic solvent and water, removing water from the extracted organic phase by adopting a drying agent, removing a polymerization product by using a certain amount of adsorbent, and finally removing the solvent by rotary evaporation at low temperature to obtain the high-purity furan diether compound.
Wherein the furan biomass platform compound molecule is 2, 5-furandimethanol or 5-hydroxymethylfurfural; the zirconium-based bifunctional catalyst is the catalyst described in patent CN113209986B which has been granted by the applicant; the alcohol solvent is ethanol or isopropanol; the organic solvent extractant is diethyl ether or ethyl acetate; the drying agent is molecular sieve or anhydrous sodium sulfate; the adsorbent is activated carbon, and the dosage of the adsorbent is 1-3% of the mass of the added furan compounds; the reaction time is 30 min-5 h, and the reaction temperature is 90-130 ℃.
The preferred steps are: step one: adding 2, 5-furandimethanol and a zirconium-based bifunctional catalyst into isopropanol according to the mass ratio of 1:0.2, and stirring for 1h at 100 ℃;
step two: filtering the reaction liquid obtained in the step one to remove the solid catalyst, then removing the solvent by rotary evaporation at low temperature, dissolving and extracting the concentrated solution by adopting ethyl acetate and water, removing water from the extracted organic phase by adopting anhydrous sodium sulfate, removing the polymerization product by using active carbon with the substrate mass of 1%, and finally removing the solvent by rotary evaporation at low temperature to obtain the 2, 5-diisopropyl oxide methyl furan compound with the purity of 99.5%.
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The following examples use instrumentation conventional in the art. The experimental methods, in which specific conditions are not noted in the following examples, are generally conducted under conventional conditions or under conditions recommended by the manufacturer. The following examples used various starting materials, unless otherwise indicated, were conventional commercial products, the specifications of which are conventional in the art. In the description of the present invention and the following examples, "%" means weight percent, and "parts" means parts by weight, and ratios means weight ratio, unless otherwise specified.
Example 1
A method for preparing high-purity furan diether, comprising the following steps:
step 1: adding 0.5g of 2, 5-furandimethanol and a zirconium-based bifunctional catalyst into 3.0mL of isopropanol according to the mass ratio of 1:0.2, and stirring and reacting for 1h at 100 ℃ to obtain a reaction solution;
Step 2: filtering the obtained reaction liquid to remove a solid catalyst, then removing a solvent by low-temperature rotary evaporation, dissolving and extracting concentrated solution by adopting ethyl acetate and water, removing water from an extracted organic phase by adopting anhydrous sodium sulfate, removing a polymerization product by using active carbon with the substrate mass of 1%, and finally obtaining the 2, 5-diisopropyl oxymethyl furan compound with the purity of 99.5% by low-temperature rotary evaporation.
Example 2
A method for preparing high-purity furan diether, comprising the following steps:
Step 1: adding 0.5g of 2, 5-furandimethanol and a zirconium-based bifunctional catalyst into 5.0mL of isopropanol according to the mass ratio of 1:0.3, and stirring and reacting for 1h at 110 ℃ to obtain a reaction solution;
Step 2: filtering the obtained reaction liquid to remove a solid catalyst, then removing a solvent by low-temperature rotary evaporation, dissolving and extracting concentrated solution by adopting diethyl ether and water, removing water from an extracted organic phase by adopting a molecular sieve, removing a polymerization product by using active carbon with the mass of 1% of a substrate, and finally obtaining the 2, 5-diisopropyl oxymethyl furan compound with the purity of 98.7% by low-temperature rotary evaporation.
Example 3
A method for preparing high-purity furan diether, comprising the following steps:
Step 1: adding 0.5g of 5-hydroxymethylfurfural and a zirconium-based bifunctional catalyst into 12mL of isopropanol according to the mass ratio of 1:4.25, and stirring and reacting for 3 hours at 130 ℃ to obtain a reaction solution;
Step 2: filtering the obtained reaction liquid to remove a solid catalyst, then removing a solvent by low-temperature rotary evaporation, dissolving and extracting concentrated solution by adopting ethyl acetate and water, removing water from an extracted organic phase by adopting a molecular sieve, removing a polymerization product by using active carbon with the substrate mass of 3%, and finally obtaining the 2, 5-diisopropyl oxymethyl furan compound with the purity of 97.9% by low-temperature rotary evaporation.
Example 4
A method for preparing high-purity furan diether, comprising the following steps:
Step 1: adding 0.3g of 2, 5-furandimethanol and a zirconium-based bifunctional catalyst into 14.4mL of ethanol according to the mass ratio of 1:0.15, and stirring and reacting for 5 hours at 90 ℃ to obtain a reaction solution;
Step 2: filtering the obtained reaction liquid to remove a solid catalyst, then removing a solvent by low-temperature rotary evaporation, dissolving and extracting concentrated solution by adopting diethyl ether and water, removing water from an extracted organic phase by adopting a molecular sieve, removing a polymerization product by using active carbon with the mass of 1% of a substrate, and finally obtaining the 2, 5-diethoxymethyl furan compound with the purity of 99.0% by low-temperature rotary evaporation.
Example 5
A method for preparing high-purity furan diether, comprising the following steps:
Step 1: adding 0.5g of 2, 5-furandimethanol and a zirconium-based bifunctional catalyst into 9mL of ethanol according to the mass ratio of 1:0.5, and stirring and reacting for 30min at 100 ℃ to obtain a reaction solution;
Step 2: filtering the obtained reaction liquid to remove a solid catalyst, then removing a solvent by low-temperature rotary evaporation, dissolving and extracting concentrated solution by adopting ethyl acetate and water, removing water from an extracted organic phase by adopting anhydrous sodium sulfate, removing a polymerization product by using active carbon with the substrate mass of 1%, and finally obtaining the 2, 5-diethoxymethyl furan compound with the purity of 98.6% by low-temperature rotary evaporation.
Example 6
A method for preparing high-purity furan diether, comprising the following steps:
Step 1: 0.5g of 5-hydroxymethylfurfural and zirconium-based bifunctional catalyst were added to 9mL of ethanol in a mass ratio of 1:3.75, and reacted at 120℃for 4 hours with stirring.
Step 2: filtering the obtained reaction liquid to remove a solid catalyst, then removing a solvent by low-temperature rotary evaporation, dissolving and extracting concentrated solution by adopting ethyl acetate and water, removing water from an extracted organic phase by adopting anhydrous sodium sulfate, removing a polymerization product by using active carbon with the substrate mass of 3%, and finally obtaining the 2, 5-diethoxymethyl furan compound with the purity of 97.8% by low-temperature rotary evaporation.
The method for preparing the high-purity furan diether compound can be used for carrying out the reaction under a lower condition, so that the generation of undesirable byproducts and polymers which are not easy to detect can be greatly reduced, and the high-purity furan diether product or standard can be produced through a simple purification process.
FIG. 1 shows the result of qualitative analysis of furan diethers obtained by the method according to the invention, which shows that the method can effectively prepare high-purity furan diethers.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The preparation method of the high-purity furan diether is characterized by comprising the following steps of:
S1: mixing a furan biomass platform compound, a zirconium-based bifunctional catalyst and an alcohol solvent, and stirring for reaction to obtain a reaction solution;
S2: filtering the reaction liquid in sequence, and performing rotary evaporation at low temperature to obtain concentrated liquid; extracting the concentrated solution to obtain an organic phase; the organic phase is subjected to post-treatment to obtain the high-purity furan diether.
2. The method for preparing high-purity furandiether according to claim 1, wherein in S1, the furans biomass platform compound is 2, 5-furandimethanol or 5-hydroxymethylfurfural; the alcohol solvent is ethanol or isopropanol.
3. The method for preparing high-purity furandiether according to claim 1, wherein in S1, the reaction time is 30 min-5 h, and the reaction temperature is 90-130 ℃.
4. The method for preparing high-purity furan diether according to claim 1, wherein in S1, the dosage ratio of the furan-based biomass platform compound, the zirconium-based bifunctional catalyst and the alcohol solvent is 1g: (0.15-4.25) g: (6-48) mL.
5. The method for preparing high-purity furandiether according to claim 1, wherein in S2, the extraction is a dissolution extraction using an organic solvent and water; the organic solvent is diethyl ether or ethyl acetate.
6. The process for preparing high purity furandiether of claim 1, wherein in S2, the post-treatment of the organic phase comprises a dehydration of the organic phase with a drying agent, followed by removal of the polymerization product with an adsorbent and final spin-evaporation of the solvent at low temperature.
7. The method for producing a high-purity furandiether according to claim 6, wherein the drying agent is a molecular sieve or anhydrous sodium sulfate.
8. The method for preparing high-purity furandiether according to claim 6, wherein the adsorbent is activated carbon, and the amount of the adsorbent is 1-3% of the mass of the furans biomass platform compound.
9. A high purity furandiether prepared by the method of any one of claims 1 to 8.
10. The high purity furandiether of claim 9, wherein the high purity furandiether has a purity of 97.8% or greater.
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