CN105413751A - Preparation method of smectite/polyaniline composite solid alkali catalyst - Google Patents
Preparation method of smectite/polyaniline composite solid alkali catalyst Download PDFInfo
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- CN105413751A CN105413751A CN201510748492.7A CN201510748492A CN105413751A CN 105413751 A CN105413751 A CN 105413751A CN 201510748492 A CN201510748492 A CN 201510748492A CN 105413751 A CN105413751 A CN 105413751A
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- montmorillonite
- base catalyst
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- complex solid
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- 229920000767 polyaniline Polymers 0.000 title claims abstract description 52
- 239000003054 catalyst Substances 0.000 title claims abstract description 45
- 239000007787 solid Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000003513 alkali Substances 0.000 title abstract description 5
- 229910021647 smectite Inorganic materials 0.000 title abstract 5
- 239000002131 composite material Substances 0.000 title abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 24
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 8
- 238000009830 intercalation Methods 0.000 claims abstract description 8
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 8
- 239000001632 sodium acetate Substances 0.000 claims abstract description 8
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 62
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 230000002687 intercalation Effects 0.000 claims description 7
- 206010013786 Dry skin Diseases 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- -1 montmorillonite compound Chemical class 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 abstract description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 description 26
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000005815 base catalysis Methods 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006000 Knoevenagel condensation reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000006845 Michael addition reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001988 small-angle X-ray diffraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B01J35/19—
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/128—Halogens; Compounds thereof with iron group metals or platinum group metals
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/28—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of the platinum group metals, iron group metals or copper
- B01J31/30—Halides
Abstract
The invention discloses a preparation method of a smectite/polyaniline composite solid alkali catalyst. The preparation method includes the steps: firstly, intercalating FeCl3 into a smectite interlayer; secondly, preparing a precursor product with HCl and aniline; finally, converting polyaniline compounded with smectite into eigenstate polyaniline by the aid of ethylene glycol and sodium acetate. The smectite/polyaniline composite solid alkali catalyst is simple in preparation process and low in preparation cost and has the advantages of excellent catalytic activity and the like.
Description
Technical field
The present invention relates to the preparation method of a kind of montmorillonite/polyaniline complex solid base catalyst.
Background technology
Montmorillonite is a kind of natural stratiform silicon aluminate crystal of nanoscale, have compared with features such as strong surface electrical negativity, specific area is large, adsorptivity is strong, imbibition, suspensions, have the laudatory title of " omnipotent clay mineral ", distributed in nature is extensive, low price, safe and harmless.001 crystal face of montmorillonite is very little, by cation exchange, the metal ion exchanged of needs is entered interlayer, can form intercalation compound.
Polyaniline is considered to one of conducting polymer having actual application prospect most.Its application in anti-corrosion of metal, electromagnetic shielding, gas sensor etc. just moves towards the industrialization.Due to PANI have preparation cost low, be insoluble to most of organic solvent and water, it has shown incomparable excellent catalytic performance as catalyst or catalyst carrier in organic transformation reaction.
Base catalyzed reactions is one of important reaction of chemical industry, base catalyzed reactions comprises double bond isomerization reaction, esterification, ester exchange reaction, Knoevenagel condensation reaction and Michael addition reaction etc., Knoevenagel condensation reaction is wherein the dehydration condensation of carbonyls and activity methene compound, for the formation of carbon-carbon double bond, this reaction is widely used in prepared by baroque fine chemicals.
Compared with liquid alkali catalyst, solid base catalyst tool has the following advantages: catalyst is easily separated from reactant mixture; High selectivity, high catalytic activity, reaction condition is gentle; Post catalyst reaction regenerating easily, can be recycled; Environmental friendliness, avoids using polar solvent or consisting of phase-transferring agent, corrosion-free to equipment; Reaction process process continuous can be made, improve the production capacity of equipment; Can apply in high temperature even gas-phase reaction; Solid base catalyst is without C-C bond fission ability, and under high temperature, reaction can not cause carbon distribution.Therefore the solid base catalyst of development environment close friend is significant.
Summary of the invention
The object of the present invention is to provide the preparation method of a kind of montmorillonite/polyaniline complex solid base catalyst.
For realizing the object of the invention, the technical solution adopted in the present invention is as follows:
A preparation method for montmorillonite/polyaniline complex solid base catalyst, described method is: use FeCl
3carry out intercalation between montmorillonite layer after, then prepare forerunner's product with HCl, aniline, finally utilize ethylene glycol, sodium acetate that the polyaniline with montmorillonite compound is changed into the polyaniline of eigenstate, obtained described montmorillonite/polyaniline complex solid base catalyst.
Further, the method for the invention is carried out as follows:
(1) by 10 ~ 60gFeCl
3, 1 ~ 15g montmorillonite, with the deionized water dissolving of 1 ~ 1.3L, 50 ~ 60 DEG C are stirred 1 ~ 5h, filter, dry, obtain intercalation FeCl
3montmorillonite;
(2) the intercalation FeCl obtained in step (1) is got
3montmorillonite 2 ~ 3g, 1 ~ 2.2mlHCl, 50 ~ 60ml deionized water dissolving are in there-necked flask, and temperature controls 50 ~ 65 DEG C, 1 ~ 6ml aniline is poured in there-necked flask, after reaction 2 ~ 3h, filters, washing, 50 ~ 65 DEG C of dryings obtain montmorillonite polyaniline complex solid base catalyst presoma;
(3) the montmorillonite polyaniline complex solid base catalyst presoma, the 1 ~ 4g sodium acetate that will obtain in 1.2 ~ 1.8g step (2), be incorporated with in teflon-lined water heating kettle after 10 ~ 60ml ethylene glycol stirs, at 373 ~ 483k constant temperature, 1 ~ 9h, take out product, filter, drying, obtains montmorillonite/polyaniline complex solid base catalyst.
In described step (1), described FeCl
3quality is 50 ~ 60g.
In described step (1), described mixing time is 3 ~ 5h.
In described step (1), deionized water 1 ~ 1.2L.
In described step (2), described HCl consumption is 2 ~ 2.2ml.
In described step (2), described aniline consumption is 5 ~ 6ml.
In described step (3), described temperature is 473 ~ 483k.
In described step (3), described constant temperature time is 8 ~ 9h.
Montmorillonite of the present invention/polyaniline complex solid base catalyst and preparation method thereof takes full advantage of montmorillonite as the excellent performance of carrier material, and the catalytic performance of polyaniline, thus improves the base catalysis performance of polyaniline.Montmorillonite provided by the invention/polyaniline complex solid base catalyst has good base catalysis performance.
Accompanying drawing explanation
Fig. 1 is the ultraviolet-visible spectrogram that embodiment 1 prepares in montmorillonite/polyaniline complex solid base catalyst.Wherein A is the ultraviolet-visible light spectrogram of montmorillonite, and B is the ultraviolet-visible light spectrogram of montmorillonite/polyaniline complex solid base catalyst.
Fig. 2 is small angle X-ray diffraction (XRD) collection of illustrative plates that embodiment 1 prepares in montmorillonite/polyaniline complex solid base catalyst.Wherein A is the little angle XRD collection of illustrative plates of montmorillonite, and B is the little angle XRD collection of illustrative plates of montmorillonite/polyaniline complex solid base catalyst.
Fig. 3 is that the apply mechanically activity of montmorillonite/polyaniline complex solid base catalyst in catalysis Knoevenagel reacts prepared by embodiment 1 is schemed.
Specific embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the invention will be further described.
embodiment 1
By 52.20gFeCl
3, 10g montmorillonite, with the deionized water dissolving of 1L, 60 DEG C are stirred 4h, filter, dry, obtain montmorillonite B; By 2.65g montmorillonite B, 2mlHCl, 50ml deionized water dissolving in there-necked flask, temperature controls 60 DEG C, pours in there-necked flask by 5ml aniline, after reaction 2h, filter, washing, 60 DEG C of dryings obtain product C, by the C of 1.4g, 3.6g sodium acetate, be incorporated with in teflon-lined water heating kettle after 50ml ethylene glycol stirs, at 473k constant temperature 8h, take out product, filter, drying, obtains montmorillonite/polyaniline complex solid base catalyst.
embodiment 2
By 50.20gFeCl
3, 8g montmorillonite, with the deionized water dissolving of 1.1L, 60 DEG C are stirred 4.5h, filter, dry, obtain montmorillonite B; By 2.8g montmorillonite B, 2.1mlHCl, 55ml deionized water dissolving in there-necked flask, temperature controls 60 DEG C, pours in there-necked flask by 5.5ml aniline, after reaction 2.5h, filter, washing, 60 DEG C of dryings obtain product C, by the C of 1.5g, 3.8g sodium acetate, be incorporated with in teflon-lined water heating kettle after 55ml ethylene glycol stirs, at 478k constant temperature 8.5h, take out product, filter, drying, obtains montmorillonite/polyaniline complex solid base catalyst.
embodiment 3
By 54.20gFeCl
3, 11g montmorillonite, with the deionized water dissolving of 1.2L, 60 DEG C are stirred 5h, filter, dry, obtain montmorillonite B; By 3g montmorillonite B, 2.2mlHCl, 60ml deionized water dissolving in there-necked flask, temperature controls 60 DEG C, pours in there-necked flask by 6ml aniline, after reaction 3h, filter, washing, 60 DEG C of dryings obtain product C, by the C of 1.6g, 4g sodium acetate, be incorporated with in teflon-lined water heating kettle after 60ml ethylene glycol stirs, at 483k constant temperature 9h, take out product, filter, drying, obtains montmorillonite/polyaniline complex solid base catalyst.
The UV of annex 1 montmorillonite/polyaniline complex solid base catalyst analyzes:
As shown in Figure 1, montmorillonite-loaded polyaniline has the last one absworption peak at 360nm place, is the π-π * transition of phenyl ring in polyaniline chain.The existence of quinone ring is represented at the absworption peak at 610nm place.Illustrate that montmorillonite-loaded polyaniline is polyaniline in eigenstate.
The little angle XRD analysis of annex 2 montmorillonites/polyaniline complex solid base catalyst:
As shown in Figure 2, as can be seen from the figure after montmorillonite-loaded polyaniline, the angle of diffraction 2 of its crystal face (001)
diminish, corresponding interlamellar spacing d (001) increases, and illustrates that montmorillonite is large by polyaniline support.
Annex 3 montmorillonites/polyaniline complex solid base catalyst apply mechanically catalytic activity:
As shown in Figure 3, it is active that montmorillonite/polyaniline complex solid alkali has good base catalysis, and this catalyst activity after repetition utilizes for 3 times does not have obvious reduction simultaneously.
Claims (8)
1. a preparation method for montmorillonite/polyaniline complex solid base catalyst, is characterized in that described method is: use FeCl
3carry out intercalation between montmorillonite layer after, then prepare forerunner's product with HCl, aniline, finally utilize ethylene glycol, sodium acetate that the polyaniline of montmorillonite compound is changed into the polyaniline of eigenstate, obtained described montmorillonite/polyaniline complex solid base catalyst.
2. the preparation method of a kind of montmorillonite as claimed in claim 1/polyaniline complex solid base catalyst, is characterized in that described method is carried out as follows:
By 10 ~ 60gFeCl
3, 1 ~ 15g montmorillonite, with the deionized water dissolving of 1 ~ 1.3L, 50 ~ 60 DEG C are stirred 1 ~ 5h, filter, dry, obtain intercalation FeCl
3montmorillonite;
Get the intercalation FeCl obtained in step (1)
3montmorillonite 2 ~ 3g, 1 ~ 2.2mlHCl, 50 ~ 60ml deionized water dissolving are in there-necked flask, and temperature controls 50 ~ 65 DEG C, 1 ~ 6ml aniline is poured in there-necked flask, after reaction 2 ~ 3h, filters, washing, 50 ~ 65 DEG C of dryings obtain montmorillonite and gather/aniline complex solid base catalyst presoma
By the montmorillonite/polyaniline complex solid base catalyst presoma, 1 ~ 4g sodium acetate obtained in 1.2 ~ 1.8g step (2), be incorporated with in teflon-lined water heating kettle after 10 ~ 60ml ethylene glycol stirs, at 373 ~ 483k constant temperature, 1 ~ 9h, take out product, filter, wash and drying, obtain montmorillonite/polyaniline complex solid base catalyst.
3. the preparation method of a kind of montmorillonite as claimed in claim 2/polyaniline complex solid base catalyst, is characterized in that in described step (1), described FeCl
3quality is 50 ~ 60g.
4. the preparation method of a kind of montmorillonite as claimed in claim 2/polyaniline complex solid base catalyst, is characterized in that, in described step (1), described mixing time is 3 ~ 5h.
5. the preparation method of a kind of montmorillonite as claimed in claim 2/polyaniline complex solid base catalyst, is characterized in that, in described step (2), described HCl consumption is 2 ~ 2.2ml.
6. the preparation method of a kind of montmorillonite as claimed in claim 2/polyaniline complex solid base catalyst, is characterized in that, in described step (2), described aniline consumption is 5 ~ 6ml.
7. the preparation method of a kind of montmorillonite as claimed in claim 2/polyaniline complex solid base catalyst, is characterized in that, in described step (3), described temperature is 473 ~ 483k.
8. the preparation method of a kind of montmorillonite as claimed in claim 2/polyaniline complex solid base catalyst, is characterized in that, in described step (3), described constant temperature time is 8 ~ 9h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748492.7A CN105413751B (en) | 2015-11-07 | 2015-11-07 | A kind of preparation method of montmorillonite/polyaniline complex solid base catalyst |
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| CN201510748492.7A CN105413751B (en) | 2015-11-07 | 2015-11-07 | A kind of preparation method of montmorillonite/polyaniline complex solid base catalyst |
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| CN105413751A true CN105413751A (en) | 2016-03-23 |
| CN105413751B CN105413751B (en) | 2017-10-03 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6136909A (en) * | 1999-05-20 | 2000-10-24 | Industrial Technology Research Institute | Preparation of conductive polymeric nanocomposite |
| CN1381530A (en) * | 2002-03-25 | 2002-11-27 | 浙江大学 | Polyphenylamine composition with clay ore as carrier and its preparing process |
| CN104741096A (en) * | 2015-03-16 | 2015-07-01 | 中国科学院兰州化学物理研究所 | Preparation method of magnetic clay mineral/polyaniline composite adsorption material |
-
2015
- 2015-11-07 CN CN201510748492.7A patent/CN105413751B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6136909A (en) * | 1999-05-20 | 2000-10-24 | Industrial Technology Research Institute | Preparation of conductive polymeric nanocomposite |
| CN1381530A (en) * | 2002-03-25 | 2002-11-27 | 浙江大学 | Polyphenylamine composition with clay ore as carrier and its preparing process |
| CN104741096A (en) * | 2015-03-16 | 2015-07-01 | 中国科学院兰州化学物理研究所 | Preparation method of magnetic clay mineral/polyaniline composite adsorption material |
Non-Patent Citations (1)
| Title |
|---|
| 胡傲厚 等: "原位插层聚合法制备聚苯胺/蒙脱石纳米复合导电材料的研究", 《非金属矿》 * |
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Granted publication date: 20171003 Termination date: 20181107 |