CN105272816B - Method for isopropyl naphthalene disproportionated reaction - Google Patents
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Abstract
The present invention relates to a kind of method for isopropyl naphthalene disproportionated reaction, mainly solves prior art and the problem of 2,6 diisopropyl naphthalenes are selectively low, catalyst inactivation is fast be present.Catalyst used in the present invention is organic silicone zeolite, and it includes the composition of following molar relationship：(1/n)Al2O3：SiO2：(m/n) R, n=10~350 in formula, m=0.02~50, R are at least one of alkyl, alkane alkenyl or phenyl；The Si containing organic silicone zeolite29NMR solid state nmr collection of illustrative plates comprises at least between 80~+50ppm a Si29Nuclear magnetic resonance spectral peak；The X x ray diffraction collection of illustrative plates containing organic silicone zeolite is 13.2 ± 0.2,12.3 ± 0.1,10.9 ± 0.3,9.1 ± 0.3,6.8 ± 0.2,6.1 ± 0.2,5.6 ± 0.2,4.4 ± 0.3,4.0 ± 0.3, there are d spacing maximums at 3.6 ± 0.2,3.4 ± 0.1 and 3.3 ± 0.2 angstroms, available in the industrial production for preparing diisopropyl naphthalene.
Description
Technical field
The present invention relates to a kind of method for isopropyl naphthalene disproportionated reaction.
Background technology
Diisopropyl naphthalene is the low condensation point of a kind of colorless and odorless low toxicity, widely used important Organic Chemicals.It is therein
2,6- diisopropyl naphthalenes are the raw materials for manufacturing the poly- 2,6- naphthalenes diethyl adipate (PEN) of high-performance polymer.PEN has heat-resisting well
The superior quality such as property, gas barrier, ultraviolet barrier property and chemical proofing, can manufacture hot canning beverage bottle, can return
Beer bottle, cosmetics of super quality bottle or high performance thin film are received, is current very powerful and exceedingly arrogant new polyester material.Mix diisopropyl naphthalene
Also can be directly as heating medium for high temperature, NCR dye solvent and capacitor impregnant etc..Manufacture diisopropyl naphthalene
Technique can also use the disproportionation reaction method of isopropyl naphthalene except using naphthalene and propylene liquid-phase alkylation method.
The molecular sieve of MWW structures has half basket structure of ten-ring and twelve-ring duct and opening simultaneously, and has high fever
Stability and stronger acidity, it is widely used in the reaction such as alkylation of benzene, but this kind of molecular sieve is seldom had been reported that in document
Applied to the serial reaction for preparing diisopropyl naphthalene, for isopropyl naphthalene disproportionated reaction it is just less.Robot
Brzozowski, Wincenty Skupinski are in Journal of Catalysis, and 220:In the texts of 13-22 mono-, nothing is employed
Sizing (silica alumina ratio 13.4) AM, mordenite with high silicon aluminum ratio (silica alumina ratio 84) HM-1, low silica-alumina ratio modenite (silicon
Al mole ratio 9.9) several evaluating catalysts such as HM-2, Y zeolite (silica alumina ratio 5.8) HY, β zeolite (silica alumina ratio 25)
The disproportionated reaction of 2- isopropyl naphthalenes.Under 250 DEG C of reaction temperature, after reacting 6 hours, the result on each catalyst is followed successively by AM
Conversion ratio 40.1%, 2,6/2,7=0.98；HM-1 conversion ratios 26.4%, 2,6/2,7=1.30；HM-2 conversion ratios 10.9%, 2,
6/2,7=1.71；HY conversion ratios 39.8%, 26/27=0.83；HB conversion ratios 48.1%, 2,6/2,7=0.91.Author draws
Conclusion, it is more easy to generate the 2,6-DIPN of linear molecule in the duct of modenite, is more easy in HY and HB duct
Generate 2,7- diisopropyl naphthalenes.
Document US4950824 refer to can with including isopropyl naphthalene and diisopropyl naphthalene be raw material obtain it is a kind of containing it is single,
The double and mixture of triisopropyl naphthalene, the method that 2,6-DIPN is obtained after component separates.JP02088531, which is disclosed, to be made
With the solid acid catalyst of silicon-aluminum containing, after naphthalene and propylene react to obtain list and diisopropyl naphthalene product, at relatively high temperatures will
Product carries out transalkylation reaction, improves the yield of 2,6-DIPN.Two above patent in fact includes isopropyl
The disproportionated reaction method of naphthalene.
Document JP63230646 has been expressly mentioned disproportionated reaction.In order to obtain corresponding product in high yield, significantly improve and urge
The activity of agent, can be by using IPN disproportionated reaction, (preferably decahydronaphthalene, bis cyclohexane in the presence of saturated alicyclic hydrocarbon
Deng usage amount accounts for the 0.2-10%wt of diisopropyl naphthalene) make catalyst using faujasite molecular sieve.In 160~300 DEG C of temperature
Degree, reaction pressure >=0.5Kg/cm2Under the conditions of, obtain 2,6 or 2,7- diisopropyl naphthalenes.
The problem of 2,6- diisopropyl naphthalenes are selectively low, catalyst inactivation is fast all be present in above method.
The content of the invention
The technical problems to be solved by the invention are that prior art has that 2,6- diisopropyl naphthalenes are selectively low, catalyst loses
A kind of the problem of living fast, there is provided new method for isopropyl naphthalene disproportionated reaction.This method has the choosing of 2,6- diisopropyl naphthalenes
The characteristics of selecting property is good, and catalyst life is longer.
In order to solve the above technical problems, the technical scheme that the present invention takes is as follows：It is a kind of to be used to produce diisopropyl naphthalene
Disproportionated reaction method, using isopropyl naphthalene as raw material, a kind of method for isopropyl naphthalene disproportionated reaction is being reacted, with isopropyl naphthalene
It it is 150~350 DEG C in reaction temperature for raw material, reaction pressure is 0~3.0MPa, and the weight space velocity of isopropyl naphthalene is 0.1~10
Hour-1Under conditions of, reaction raw materials contact generation diisopropyl naphthalene with catalyst；The catalyst includes by weight percentage
Following components：
A) 50~80% organic silicone zeolite；
B) 20~50% binding agent；
Organic silicone zeolite includes the composition of following molar relationship：(1/n)Al2O3：SiO2：(m/n) R, n=10 in formula
~350, m=0.02~50, R are at least one of alkyl, alkane alkenyl or phenyl；The Si containing organic silicone zeolite29NMR consolidates
Body nuclear magnetic spectrum comprises at least between -80~+50ppm a Si29Nuclear magnetic resonance spectral peak；The X- containing organic silicone zeolite
X ray diffraction collection of illustrative plates 13.2 ± 0.2,12.3 ± 0.1,10.9 ± 0.3,9.1 ± 0.3,6.8 ± 0.2,6.1 ± 0.2,5.6 ±
0.2,4.4 there are d- spacing maximums at ± 0.3,4.0 ± 0.3,3.6 ± 0.2,3.4 ± 0.1 and 3.3 ± 0.2 angstroms.
In above-mentioned technical proposal, it is preferable that n=20~150, m=0.1~20.
In above-mentioned technical proposal, it is preferable that the alkyl is the alkyl that carbon number is 1~8, and the alkane alkenyl is that carbon is former
Subnumber is 2~10 alkane alkenyl.It is highly preferred that the alkyl is methyl or ethyl, the alkane alkenyl is vinyl.
In above-mentioned technical proposal, it is preferable that the diisopropyl naphthalene is selected from 2,6-DIPN or 2,7- diisopropyl
At least one of naphthalene.
In above-mentioned technical proposal, it is preferable that the binding agent is in aluminum oxide, titanium oxide, zinc oxide or zirconium oxide
It is at least one.
In above-mentioned technical proposal, it is preferable that reaction temperature is 150~300 DEG C.
In above-mentioned technical proposal, it is preferable that reaction pressure is 0.1~3.0MPa.
In above-mentioned technical proposal, it is preferable that the weight space velocity of isopropyl naphthalene is 0.1~2 hour-1。
The synthetic method of organic silicone zeolite in the inventive method is as follows：
A) organic silicon source, inorganic silicon source, silicon source, alkali, organic amine template and water are mixed, with the SiO in inorganic silicon source2
On the basis of, reactant mixture using molar ratio computing as：SiO2/Al2O3=10~350, organic silicon source/SiO2=0.001~1, OH-/
SiO2=0.01~5.0, H2O/SiO2=5~100, organic amine/SiO2=0.01~2.0；
B) by above-mentioned reactant mixture under the conditions of crystallization temperature is 80~225 DEG C, after reacting 12 hours~10 days
Take out, through washing, dry be made contain organic silicone zeolite.
In above-mentioned technical proposal, inorganic silicon source is selected from Ludox, solid oxidation silicon, silica gel, esters of silicon acis, diatomite or water
At least one of glass.Organic silicon source is selected from least one of halosilanes, silazane or alkoxy silane；Wherein halogen silicon
Alkane is selected from trim,ethylchlorosilane, dimethyldichlorosilane, chlorotriethyl silane, diethyl dichlorosilane, dimethyl chloride bromine silicon
Alkane, dimethyl ethyl chlorosilane, dimethylbutyl chlorosilane, 3,5-dimethylphenyl chlorosilane, dimethylisopropyl chlorosilane, diformazan
Base tertiary butyl chloride silane, dimethyl stearyl chlorosilane, methyl phenyl vinyl chlorosilane, vinyl trichlorosilane or hexichol
At least one of base dichlorosilane；Silazane is selected from HMDS, heptamethyldisilazane, the silicon nitrogen of tetramethyl two
At least one of alkane, divinyl tetramethyl-disilazane or diphenyltetramethyldisilazane；Alkoxy silane be selected from
Trimethylethoxysilane, dimethyldiethoxysilane, trimethylmethoxysilane, dimethyldimethoxysil,ne, front three
At least one of phenyl silane or diphenyl diethoxy silane.Silicon source is selected from sodium aluminate, sodium metaaluminate, sulfuric acid
At least one of aluminium, aluminum nitrate, aluminium chloride, aluminium hydroxide, aluminum oxide, kaolin or montmorillonite.Alkali is inorganic base, for selected from
At least one of lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide or cesium hydroxide.Organic formwork agent is selected from second
Diamines, hexamethylene diamine, cyclohexylamine, hexamethylene imine, heptamethylene imines, pyridine, hexahydropyridine, butylamine, hexylamine, octylame, the last of the ten Heavenly stems
At least one of amine, lauryl amine, cetylamine or octadecylamine.
Reactant mixture is with the SiO in inorganic silicon source2On the basis of, using molar ratio computing preferred scope as：SiO2/Al2O3=20
~150, organic silicon source/SiO2=0.005~0.5, OH-/SiO2=0.05~1.0, H2O/SiO2=10~80, organic formwork
Agent/SiO2=0.05~1.0.Crystallization temperature preferred scope is 120~190 DEG C, and crystallization time preferred scope is 12
~120 hours.Priority scheme is that first ageing 2~100 is small under the conditions of 10~80 DEG C before crystallization for reactant mixture during synthesis
When.
The preparation method of the catalyst used in the inventive method is as follows：
Organic silicone zeolite of above-mentioned synthesis is mixed with binding agent, zeolite content is 50~80 (weight) %.Then 5 are added
(weight) % dilute nitric acid solution is kneaded and formed, drying, is calcined in atmosphere to 480~600 DEG C, roasting time is 1~15 small
When obtain finished catalyst.
As a result of with special diffraction maximum and special Si in the present invention29Organic silicone zeolite of nuclear magnetic resonance spectral peak is urged
Agent active main body, during disproportionated reaction for isopropyl naphthalene, the side reactions such as dealkylation are restrained effectively, so that three
The generation of the heavy constituents such as isopropyl naphthalene greatly reduces, and has certain shape selectivity to 2,6-DIPN.The present inventor
It was found that reaction, under the conditions of less than 270 DEG C, after operation in 100 hours, naphthalene conversion ratio stills remain in more than 50%, three isopropyls
Base naphthalene content accounts for product molar ratio less than 6%, and catalyst is without the sign inactivated, 2,6-DIPN and 2,7- diisopropyl
The mol ratio of naphthalene is more than 1.2, achieves good technique effect.
Below by embodiment, the invention will be further elaborated.
Embodiment
【Embodiment 1】
Sodium aluminate (is contained into 42.0 weight %Al2O3) 6.1 grams and 2.0 grams of sodium hydroxide be dissolved in 270 grams of water, then stirring
34.7 grams of hexamethylene imine is added in the case of mixing, 150 grams of Ludox is added and (contains 40 weight %SiO2), dimethyl dichloro
6.5 grams of silane, the material proportion (mol ratio) of reactant are：
SiO2/Al2O3=100
NaOH/Al2O3=0.05
Dimethyldichlorosilane/SiO2=0.05
Hexamethylene imine/SiO2=0.35
H2O/SiO2=20
After question response mixture stirs, it is fitted into stainless steel cauldron, it is small in 150 DEG C of crystallization 55 under agitation
When.Through filtering, washing, dry after taking-up.SiO is obtained through chemical analysis2/Al2O3Mol ratio is 42.3.
Dried sample after measured, its Si29There is nuclear magnetic resonance spectral peak in -18.4ppm in NMR solid cores magnetic spectrum.Its X-
Ray diffraction data is shown in Table 1.
Table 1
The powder sample of 50 grams of synthesis is taken, 550 DEG C are calcined 5 hours, are then exchanged 3 times, filtering, dried with 1M nitric acid.
Afterwards, it is sufficiently mixed with 20 grams of aluminum oxide, adds the strip that 5 (weight) % nitric acid are mediated, extruded moulding is 1.6 × 2 millimeters of Φ
Thing, 120 DEG C of drying, 550 DEG C are calcined 5 hours, are prepared into the catalyst of needs.
The Catalyst packing of 10 grams of above-mentioned preparations is taken in fixed bed reactors, then passes to 2- isopropyl naphthalene liquid.Instead
The condition is answered to be：Weight space velocity=1.0 hour of 2- isopropyl naphthalenes-1, 250 DEG C of reaction temperature, reaction pressure 2.0MPa.
After reaction 100 hours, reaction result is：2- isopropyl naphthalenes conversion ratio 53.85%, diisopropyl naphthalene selectivity
29.72%, triisopropyl naphthalene above heavy constituent accounts for product molar ratio as 5.98%.2,6- diisopropyl naphthalenes and 2,7- diisopropyls
The mol ratio of naphthalene is 1.23.
【Embodiment 2】
Sodium aluminate (is contained into 42.0 weight %Al2O3) 6.1 grams and 2.0 grams of sodium hydroxide be dissolved in 180 grams of water, then stirring
Add 6.6 grams of trim,ethylchlorosilane in the case of mixing, 43.0 grams of hexahydropyridine, add 150 grams of Ludox and (contain 40 weight %
SiO2), the material proportion (mol ratio) of reactant is：
SiO2/Al2O3=40
NaOH/Al2O3=0.05
Trim,ethylchlorosilane/SiO2=0.06
Hexahydropyridine/SiO2=0.50
H2O/SiO2=15
After question response mixture stirs, it is fitted into stainless steel cauldron, it is small in 152 DEG C of crystallization 50 under agitation
When.Through filtering, washing, dry after taking-up.SiO is obtained through chemical analysis2/Al2O3Mol ratio is 42.1.
Dried sample after measured, its Si29There is nuclear magnetic resonance spectral peak in 15.2ppm in NMR solid cores magnetic spectrum.Its X- is penetrated
Line diffraction data is shown in Table 2.
Table 2
The powder sample of 50 grams of synthesis is taken, the process for preparing catalyst is led to【Embodiment 1】.10 grams of Catalyst packings are taken solid
In fixed bed reactor, 2- isopropyl naphthalene liquid is then passed to.Reaction condition is：Weight space velocity=1.0 of 2- isopropyl naphthalenes are small
When-1, 270 DEG C of reaction temperature, reaction pressure 2.5MPa.
After reaction 100 hours, reaction result is：2- isopropyl naphthalenes conversion ratio 50.52%, diisopropyl naphthalene selectivity
25.96%, triisopropyl naphthalene above heavy constituent accounts for product molar ratio as 6.73%.2,6- diisopropyl naphthalenes and 2,7- diisopropyls
The mol ratio of naphthalene is 1.18.
【Embodiment 3】
2.0 grams of 5.1 grams of aluminum oxide and sodium hydroxide are dissolved in 540 grams of water, six methylenes are then added in the case of stirring
42.5 grams of base imines, adds 60 grams of solid oxidation silicon, 3.2 grams of HMDS, the material proportion of reactant (mole
Than) be：
SiO2/Al2O3=20
NaOH/Al2O3=0.05
HMDS/SiO2=0.04
Hexamethylene imine/SiO2=0.50
H2O/SiO2=30
After question response mixture stirs, it is fitted into stainless steel cauldron, it is small in 163 DEG C of crystallization 50 under agitation
When.Through filtering, washing, dry after taking-up.SiO is obtained through chemical analysis2/Al2O3Mol ratio is 17.7.
Dried sample after measured, its Si29There is nuclear magnetic resonance spectral peak in 15.8ppm in NMR solid cores magnetic spectrum.Its X- is penetrated
Line diffraction data is shown in Table 3.
Table 3
The powder sample of 50 grams of synthesis is taken, the process for preparing catalyst is led to【Embodiment 1】.10 grams of Catalyst packings are taken solid
In fixed bed reactor, 2- isopropyl naphthalene liquid is then passed to.Reaction condition is：Weight space velocity=2.0 of 2- isopropyl naphthalenes are small
When-1, 250 DEG C of reaction temperature, reaction pressure 2.0MPa.
After reaction 100 hours, reaction result is：2- isopropyl naphthalenes conversion ratio 51.48%, diisopropyl naphthalene selectivity
27.05%, triisopropyl naphthalene above heavy constituent accounts for product molar ratio as 5.60%.2,6- diisopropyl naphthalenes and 2,7- diisopropyls
The mol ratio of naphthalene is 1.23.
【Embodiment 4】
Sodium aluminate (is contained into 42.0 weight %Al2O3) 3.0 grams and 4.0 grams of sodium hydroxide be dissolved in 720 grams of water, then stirring
Add 29.8 grams of hexamethylene imine in the case of mixing, add 60 grams of solid oxidation silicon, 6.5 grams of dimethyldichlorosilane, reaction
The material proportion (mol ratio) of thing is：
SiO2/Al2O3=80
NaOH/Al2O3=0.1
Dimethyldichlorosilane/SiO2=0.05
Hexamethylene imine/SiO2=0.35
H2O/SiO2=40
After question response mixture stirs, it is fitted into stainless steel cauldron, it is small in 144 DEG C of crystallization 40 under agitation
When.Through filtering, washing, dry after taking-up.SiO is obtained through chemical analysis2/Al2O3Mol ratio is 79.0.
Dried sample after measured, its Si29There is nuclear magnetic resonance spectral peak in 16.8ppm in NMR solid cores magnetic spectrum.Its X- is penetrated
Line diffraction data is shown in Table 4.
Table 4
The powder sample of 50 grams of synthesis is taken, the process for preparing catalyst is led to【Embodiment 1】.10 grams of Catalyst packings are taken solid
In fixed bed reactor, 2- isopropyl naphthalene liquid is then passed to.Reaction condition is：Weight space velocity=0.5 of 2- isopropyl naphthalenes is small
When-1, 250 DEG C of reaction temperature, reaction pressure 2.0MPa.
After reaction 100 hours, reaction result is：2- isopropyl naphthalenes conversion ratio 53.91%, diisopropyl naphthalene selectivity
29.58%, triisopropyl naphthalene above heavy constituent accounts for product molar ratio as 6.04%.2,6- diisopropyl naphthalenes and 2,7- diisopropyls
The mol ratio of naphthalene is 1.24.
【Embodiment 5】
Sodium aluminate (is contained into 42.0 weight %Al2O3) 2.0 grams and 20.0 grams of sodium hydroxide be dissolved in 810 grams of water, then stirring
In the case of mixing plus 42.5 grams of hexamethylene imine, 60 grams of solid oxidation silicon is added, 19.8 grams of trimethoxy-benzene base silane, instead
The material proportion (mol ratio) for answering thing is：
SiO2/Al2O3=120
NaOH/Al2O3=0.5
Trimethoxy-benzene base silane/SiO2=0.1
Hexamethylene imine/SiO2=0.5
H2O/SiO2=45
After question response mixture stirs, it is fitted into stainless steel cauldron, it is small in 141 DEG C of crystallization 40 under agitation
When.Through filtering, washing, dry after taking-up.SiO is obtained through chemical analysis2/Al2O3Mol ratio is 117.2.
Dried sample after measured, its Si29There is nuclear magnetic resonance spectral peak in -15.7ppm in NMR solid cores magnetic spectrum.Its X-
Ray diffraction data is shown in Table 5.
Table 5
The powder sample of 50 grams of synthesis is taken, the process for preparing catalyst is led to【Embodiment 1】.10 grams of Catalyst packings are taken solid
In fixed bed reactor, 2- isopropyl naphthalene liquid is then passed to.Reaction condition is：Weight space velocity=1.0 of 2- isopropyl naphthalenes are small
When-1, 250 DEG C of reaction temperature, reaction pressure 2.5MPa.
After reaction 100 hours, reaction result is：2- isopropyl naphthalenes conversion ratio 52.67%, diisopropyl naphthalene selectivity
28.61%, triisopropyl naphthalene above heavy constituent accounts for product molar ratio as 5.37%.2,6- diisopropyl naphthalenes and 2,7- diisopropyls
The mol ratio of naphthalene is 1.22.
【Embodiment 6】
Sodium aluminate (is contained into 42.0 weight %Al2O3) 1.0 grams and 12.0 grams of sodium hydroxide be dissolved in 1080 grams of water, Ran Hou
In the case of stirring plus 42.5 grams of hexamethylene imine, 60 grams of solid oxidation silicon is added, 48.5 grams of divinyldichlorosilane,
The material proportion (mol ratio) of reactant is：
SiO2/Al2O3=240
NaOH/Al2O3=0.3
Divinyldichlorosilane/SiO2=0.3
Hexamethylene imine/SiO2=0.5
H2O/SiO2=60
After question response mixture stirs, it is fitted into stainless steel cauldron, it is small in 138 DEG C of crystallization 40 under agitation
When.Through filtering, washing, dry after taking-up.SiO is obtained through chemical analysis2/Al2O3Mol ratio is 221.8.
Dried sample after measured, its Si29There is nuclear magnetic resonance spectral peak in -43.8ppm in NMR solid cores magnetic spectrum.Its X-
Ray diffraction data is shown in Table 6.
Table 6
The powder sample of 50 grams of synthesis is taken, the process for preparing catalyst is led to【Embodiment 1】.10 grams of Catalyst packings are taken solid
In fixed bed reactor, 2- isopropyl naphthalene liquid is then passed to.Reaction condition is：Weight space velocity=1.0 of 2- isopropyl naphthalenes are small
When-1, 200 DEG C of reaction temperature, reaction pressure 2.0MPa.
After reaction 100 hours, reaction result is：2- isopropyl naphthalenes conversion ratio 46.31%, diisopropyl naphthalene selectivity
26.33%, triisopropyl naphthalene above heavy constituent accounts for product molar ratio as 4.82%.2,6- diisopropyl naphthalenes and 2,7- diisopropyls
The mol ratio of naphthalene is 1.21.
Claims (9)
1. a kind of method for isopropyl naphthalene disproportionated reaction, it is 150~350 DEG C in reaction temperature using isopropyl naphthalene as raw material,
Reaction pressure is 0~3.0MPa, and the weight space velocity of isopropyl naphthalene is 0.1~10 hour-1Under conditions of, reaction raw materials and catalyst
Contact generation diisopropyl naphthalene；The catalyst includes following components by weight percentage：
A) 50~80% organic silicone zeolite；
B) 20~50% binding agent；
Organic silicone zeolite includes the composition of following molar relationship：(1/n)Al2O3：SiO2：(m/n) R, n=10 in formula~
350, m=0.02~50, R are at least one of alkyl, alkane alkenyl or phenyl；The Si containing organic silicone zeolite29NMR solids
Nuclear magnetic spectrum comprises at least between -80~+50ppm a Si29Nuclear magnetic resonance spectral peak；The X- containing organic silicone zeolite is penetrated
Ray diffraction diagram spectrum 13.2 ± 0.2,12.3 ± 0.1,10.9 ± 0.3,9.1 ± 0.3,6.8 ± 0.2,6.1 ± 0.2,5.6 ±
0.2,4.4 there are d- spacing maximums at ± 0.3,4.0 ± 0.3,3.6 ± 0.2,3.4 ± 0.1 and 3.3 ± 0.2 angstroms.
2. it is used for the method for isopropyl naphthalene disproportionated reaction according to claim 1, it is characterised in that n=20~150, m=0.1
~20.
3. it is used for the method for isopropyl naphthalene disproportionated reaction according to claim 1, it is characterised in that the alkyl is carbon atom
Number is 1~8 alkyl, and the alkane alkenyl is the alkane alkenyl that carbon number is 2~10.
4. according to claim 3 be used for isopropyl naphthalene disproportionated reaction method, it is characterised in that the alkyl be methyl or
Ethyl, the alkane alkenyl are vinyl.
5. it is used for the method for isopropyl naphthalene disproportionated reaction according to claim 1, it is characterised in that the diisopropyl naphthalene choosing
From at least one of 2,6- diisopropyl naphthalenes or 2,7- diisopropyl naphthalenes.
6. it is used for the method for isopropyl naphthalene disproportionated reaction according to claim 1, it is characterised in that the binding agent is selected from oxygen
Change at least one of aluminium, titanium oxide, zinc oxide or zirconium oxide.
7. according to claim 1 be used for isopropyl naphthalene disproportionated reaction method, it is characterised in that reaction temperature be 150~
300℃。
8. according to claim 1 be used for isopropyl naphthalene disproportionated reaction method, it is characterised in that reaction pressure be 0.1~
3.0MPa。
9. it is used for the method for isopropyl naphthalene disproportionated reaction according to claim 1, it is characterised in that the weight of isopropyl naphthalene is empty
Speed is 0.1~2 hour-1。
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| CN105272816A (en) | 2016-01-27 |
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