CN105669392B - A kind of different topology structure system with molecular sieve for preparing is for ethoxymethyl) epoxide methanol method - Google Patents
A kind of different topology structure system with molecular sieve for preparing is for ethoxymethyl) epoxide methanol method Download PDFInfo
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- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
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- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
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- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
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- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
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- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38, as exemplified by patent documents US4046859, US4016245 and US4046859, respectively
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- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
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Abstract
A kind of different topology structure system with molecular sieve for preparing is for ethoxymethyl) epoxide methanol method, be related to it is a kind of preparing ethoxymethyl) epoxide methanol method, using dimethoxymethane and ethyl alcohol as raw material, at temperature and pressure, with the molecular sieve of different topology structure as catalyst, ethoxymethyl) epoxide methane is prepared；Atomic ratio Si/Al=3 ~ 100 of silicon and aluminium in the molecular sieve catalyst of different topology structure；Different topology structure molecular sieve is respectively one or more in 22 molecular sieves of Hydrogen MCM, 35 molecular sieves of Hydrogen ZSM, 5 molecular sieves of Hydrogen ZSM, h-mordenite, Hydrogen Y zeolites, Hydrogen Beta molecular sieves；The structure type of different topology structure molecular sieve catalyst is selected from least one of MWW, FER, MFI, MOR, FAU, BEA.Product of the present invention is more single, high selectivity, and required raw material is cheap and easy to get, and whole flow process is easy to operate, does not generate the chemical substance of pollution environment, belongs to environmentally friendly processing route.
Description
Technical field
Ethoxymethyl) epoxide methanol method is prepared the present invention relates to a kind of, more particularly to a kind of different topology structure molecule
Sieve prepares ethoxymethyl) epoxide methanol method.
Background technology
Ethoxymethyl) epoxide methane（EMM）, molecular weight 90.12,65.90 DEG C of boiling point is a kind of important methanol derivative
Object had not only contained methoxyl group but also had contained ethyoxyl simultaneously, can have been used as Methanol gasoline cosolvent.
We consult SciFinder, using ethoxymethyl) epoxide methane as product, find in document and patent about ethyoxyl
The report of the synthetic method of methoxyl group methane is seldom.
（1）Methanol, ethyl alcohol and formalin method：
A kind of method that ethoxymethyl) epoxide methane is prepared by aldolisation is reported in patent CN102070416, it should
Using ethyl alcohol, methanol and 30 % dimethoxym ethanes aqueous solutions as raw material, storng-acid cation exchange resin Amberlyst 35 is method
Catalyst synthesizes ethoxymethyl) epoxide methane under intermittent reaction.
But this method needs a large amount of CaCl2The water in mix products is removed, and what is obtained is dimethoxym ethane, (ethoxymethyl)
The yield of the mixture of oxygroup methane and diethoxy methoxyl group methane, ethoxymethyl) epoxide methane calculates very from ethyl alcohol
It is low.
（2）Dimethoxym ethane and diethoxymethane method：
The reports such as Rakhmankulov, I. L.（Nekotor. Vopr. Issled. Razl. Khim. Sistem
Fiz.-Khim. Metodami, Ashkhabad Pages55-7 Journal 1980）With dimethoxym ethane and diethoxymethane
Ethoxymethyl) epoxide methane is synthesized, but this method EMM yields are relatively low using methyl acetate as solvent for reaction raw materials, only 10%.
Invention content
The purpose of the present invention is to provide a kind of different topology structure system with molecular sieve for preparing for ethoxymethyl) epoxide methanol method, originally
Invention uses the molecular sieve of different topology structure for catalyst, using dimethoxymethane and ethyl alcohol as raw material, highly selective generation
Ethoxymethyl) epoxide methane.Entire building-up process product is simple, and side reaction is less, the choosing of required product ethoxymethyl) epoxide methane
Selecting property height；The method of the present invention does not pollute environment simultaneously.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of different topology structure system with molecular sieve for preparing is for ethoxymethyl) epoxide methanol method, and the method is with dimethoxymethane
It is raw material with ethyl alcohol, at temperature and pressure, with the molecular sieve of different topology structure as catalyst, prepares ethoxymethyl) epoxide
Methane；Atomic ratio Si/Al=3 ~ 100 of silicon and aluminium in the molecular sieve catalyst of different topology structure；Different topology structure molecular sieve
Respectively Hydrogen MCM-22 molecular sieves, Hydrogen ZSM-35 molecular sieve, Hydrogen ZSM-5 molecular sieve, h-mordenite, Hydrogen Y boilings
It is one or more in stone, Hydrogen Beta molecular sieves；The structure type of different topology structure molecular sieve catalyst be selected from MWW,
At least one of FER, MFI, MOR, FAU, BEA；Atomic ratio Si/Al=5 ~ 100 of silicon and aluminium in Hydrogen MCM-22 molecular sieves；
It is further preferred that in the Hydrogen ZSM-35 molecular sieve silicon and aluminium atomic ratio Si/Al=5 ~ 100；Still more preferably
Ground, the atomic ratio Si/Al (molar ratio)=5 ~ 100 of silicon and aluminium in the Hydrogen ZSM-5 molecular sieve；It is further preferred that described
The atomic ratio Si/Al (molar ratio)=5 ~ 50 of silicon and aluminium in h-mordenite；It is further preferred that the Hydrogen Y molecular sieve
Atomic ratio Si/Al=3 ~ 50 of middle silicon and aluminium；It is further preferred that in the Hydrogen Beta molecular sieves silicon and aluminium atomic ratio
Si/Al=5~100。
For a kind of different topology structure system with molecular sieve for preparing for ethoxymethyl) epoxide methanol method, the reaction temperature is 0
~160 DEG C, reaction pressure is 0.1~10.0 MPa；Filling gas is inert gas, is argon gas, helium, carbon dioxide or nitrogen
One kind in gas or gaseous mixture；Reactor is fixed bed or tank reactor；Still more preferably tank reactor.
A kind of different topology structure system with molecular sieve for preparing is for ethoxymethyl) epoxide methanol method, the raw material dimethoxy
Methane and ethyl alcohol molar ratio are 1:2~5:1, still more preferably 1:1.
Advantages of the present invention is with effect：
The present invention provides a kind of methods of synthesis ethoxymethyl) epoxide methane.Its most prominent advantage is that product is more single
One, high selectivity has a good application prospect.And raw material needed for this method is cheap and easy to get, and whole flow process is easy to operate,
This method does not generate the chemical substance of any pollution environment simultaneously, belongs to environmentally friendly processing route.
Description of the drawings
Fig. 1 is the H-ZSM-35 of Si/Al=16 when being catalyst reaction temperature and ethoxymethyl) epoxide methane selectively relationship
Figure.
Specific implementation mode
The following describes the present invention in detail with reference to examples.
This application provides a kind of molecular sieves using different topology structure as catalyst, by dimethoxymethane and second
The method that alcohol prepares ethoxymethyl) epoxide methane.In the reaction of the present invention, following reaction occurs for raw material：
Such as above formula（1）Shown, raw material dimethoxymethane and ethyl alcohol are with molar ratio 1:1 reaction, it is 1 to generate molar ratio:1 (ethoxymethyl)
Oxygroup methane and methanol.
It can be seen that from the above reaction process and be by the mixture obtained after raw material dimethoxymethane and ethanol synthesis：
Ethoxymethyl) epoxide methane, diethoxymethane and methanol, also a small amount of remaining reaction raw materials dimethoxymethane and ethyl alcohol.
For the present invention, it is desirable to which dimethoxymethane and ethyl alcohol are with molar ratio 1:1 reaction completely, generating molar ratio is
1:1 ethoxymethyl) epoxide methane and methanol, without generating diethoxymethane.The selectivity of two kinds of products can pass through change
The type of catalyst, reaction raw materials ratio, the temperature of reaction, reaction contact time, the conditions such as reaction pressure change.
In the present invention, product is detected and is determined by gas-chromatography and mass spectrometer analysis.Pass through gas-
Mass spectrometry analysis detection, it is determined that the mixture composition after reaction is simple, only dimethoxymethane, ethyl alcohol, diethoxy
Methane, ethoxymethyl) epoxide methane and methanol.
Embodiment 1
38 g dimethoxymethane are added in 180 mL autoclaves, 23 g ethyl alcohol and 3 g catalyst, catalyst are respectively silicon
The Hydrogen MCM-22 molecular sieves of aluminium ratio Si/Al=16, the Hydrogen ZSM-35 molecular sieve of silica alumina ratio Si/Al=16, silica alumina ratio Si/Al=
16 Hydrogen ZSM-5 molecular sieve, the h-mordenite of silica alumina ratio Si/Al=16, silica alumina ratio Si/Al=16 Hydrogen Y zeolites, silicon
The Hydrogen Beta molecular sieves of aluminium ratio Si/Al=16.Use N2Air under the conditions of 1.0 MPa in displacement kettle three times, makes remaining in kettle
Air content be less than 0.1%, and be passed through 2.0 MPa N again2, 30 min are stood, are leaked hunting for reaction kettle, it is ensured that device is not
Gas reactor is emptied after gas leakage.Under the conditions of ensuring gastight, heat temperature raising reaction, reaction kettle mixing speed 500 are carried out
Rev/min, reaction pressure 0.1MPa, 70 DEG C of reaction temperature, in 4 hours reaction time, reaction result is as shown in table 1.
From the response data of table 1 it is found that normal pressure, 70 DEG C, reaction raw materials dimethoxymethane and ethyl alcohol are with molar ratio
1：1 reaction 4 hours, different catalyst is affected to selectivity of product, and wherein catalyst is the H- of silica alumina ratio Si/Al=16
The selective highest of ethoxymethyl) epoxide methane when ZSM-35 is 87%.
Embodiment 2
Normal pressure, under the conditions of 70 DEG C, it is 1 that molar ratio is added in 180 mL autoclaves:3、1:2、2:1、3:1、4:
1、5:1 raw material dimethoxymethane and ethyl alcohol and the H-ZSM-35 catalyst of 3 g silica alumina ratios Si/Al=16（Wherein ethyl alcohol
Quality is 23 g）, N is used at ambient temperature2Air under the conditions of 1.0 MPa in displacement kettle makes remaining sky in kettle three times
Gas content is less than 0.1%, and is passed through 2.0 MPa N again2, 30 min are stood, are leaked hunting for reaction kettle, it is ensured that device is air tight
After empty gas reactor.Under the conditions of ensuring gastight, heat temperature raising is carried out under normal pressure, 500 turns of reaction kettle mixing speed/
Point, in 4 hours reaction time, influence of the different ratios of raw materials to reactivity and selectivity of product is as shown in table 2.
From Table 2, it can be seen that normal pressure, 70 DEG C, reaction pass through 4 hours, the reaction raw materials dimethoxy of different mol ratio
Result that methylmethane and ethanol synthesis obtain is different, and the selectivity of the more highly ethoxylated methoxyl group methane of ethanol content is more in raw material
Low, the selectivity of the lower ethoxymethyl) epoxide methane of ethanol content is higher in raw material.Improve dimethoxymethane and second in raw material
The molar ratio of alcohol can increase the selectivity of ethoxymethyl) epoxide methane.
Embodiment 3
38 g dimethoxymethane, 23 g ethyl alcohol, 3 g silica alumina ratios Si/Al=16 are added in 180 mL autoclaves
H-ZSM-35 catalyst, use N at ambient temperature2Air under the conditions of 1.0 MPa in displacement kettle three times, makes remaining in kettle
Air content be less than 0.1%, and be passed through 2.0 MPa N again2, 30 min are stood, are leaked hunting for reaction kettle, it is ensured that device is not
Gas reactor is emptied after gas leakage.Under the conditions of ensuring gastight, progress heat temperature raising, 500 revs/min of reaction kettle mixing speed,
4 hours reaction time, 0.1 MPa of reaction pressure, reaction temperature is respectively 25 DEG C, 40 DEG C, 60 DEG C, 80 DEG C, 100 DEG C,
120 DEG C, 130 DEG C, 140 DEG C, 150 DEG C, 160 DEG C, the reaction result under differential responses temperature condition is as shown in table 3.
From table 3 it is observed that when using the H-ZSM-35 of silica alumina ratio Si/Al=16 as catalyst, reacted under normal pressure
4 hours, reactant dimethoxymethane and ethyl alcohol molar ratio were 1：When 1, selected with the raising ethoxymethyl) epoxide methane of temperature
Property reduce, the selective higher of ethoxymethyl) epoxide methane within the scope of relatively low temperature.
Embodiment 4
The H-ZSM-35 catalyst for selecting silica alumina ratio Si/Al=16, is added 38 g dimethoxies in 180 mL autoclaves
Methylmethane, 23 g ethyl alcohol, the H-ZSM-35 catalyst of 3 g silica alumina ratios Si/Al=16 use N at ambient temperature2In 1.0 MPa
Under the conditions of air in displacement kettle three times, so that remaining air content is less than 0.1 %, and be passed through 2.0 MPa N again2,
30 min are stood, are leaked hunting for reaction kettle, it is ensured that empty gas reactor after device is air tight.Under the conditions of ensuring gastight,
Heat temperature raising is carried out, temperature is 70 DEG C, and 500 revs/min of reaction kettle mixing speed, is respectively at 4 hours reaction time in pressure
Under 0.1 MPa, 1.0 MPa, 1.5 MPa, 2.0 MPa, 3.0 MPa, 4.0 MPa, 6.0 MPa, 8.0 MPa, 10.0 MPa into
Row reacts, and the reaction result under differential responses pressure condition is as shown in table 4.
From table 4, it can be seen that when using the H-ZSM-35 of silica alumina ratio Si/Al=16 as catalyst, when 70 DEG C of reactions
Between 4 hours, reactant dimethoxymethane and ethyl alcohol molar ratio are 1：It is 0.1~10.0 MPa, raw material in pressure limit when 1
The conversion ratio of dimethoxymethane and ethyl alcohol is improved with the increase of pressure, and the selectivity of product ethoxymethyl) epoxide methane exists
0.1~1.5 MPa ranges are increased with the raising of pressure, but selectivity under conditions of 1.5~10.0 MPa relatively high pressures
It is reduced with the raising of pressure.Ethoxymethyl) epoxide methane has higher selectivity in the pressure limit of 0.1~1.5 MPa.
Embodiment 5
The H-ZSM-35 catalyst for selecting silica alumina ratio Si/Al=16, is added 38 g dimethoxies in 180 mL autoclaves
Methylmethane, 23 g ethyl alcohol, the H-ZSM-35 catalyst of 3 g silica alumina ratios Si/Al=16 use N at ambient temperature2In 1.0 MPa
Under the conditions of air in displacement kettle three times, so that remaining air content is less than 0.1 %, and be passed through 2.0 MPa N again2,
30 min are stood, are leaked hunting for reaction kettle, it is ensured that empty gas reactor after device is air tight.Under the conditions of ensuring gastight,
Carrying out heat temperature raising under normal pressure, temperature is set as 70 DEG C, 500 revs/min of reaction kettle mixing speed, the reaction time is respectively 2 hours,
4 hours, 6 hours, 8 hours, 10 hours, the reaction result under differential responses pressure condition was as shown in table 5.
As can be seen from Table 5, when using the H-ZSM-35 of silica alumina ratio Si/Al=16 as catalyst, 70 DEG C, atmospheric reverse
It answers, reactant dimethoxymethane and ethyl alcohol molar ratio are 1：When 1, the reaction time short life conducive to ethoxymethyl) epoxide methane
At the reaction time is longer, and reaction is more abundant, and the selectivity of ethoxymethyl) epoxide methane is lower.
Embodiment 6
It is added 38 g dimethoxymethane in 180 mL autoclaves, 23 g ethyl alcohol and the different silica alumina ratio of quality
The H-ZSM-35 catalyst of Si/Al=16, uses N at ambient temperature2Air under the conditions of 1.0 MPa in displacement kettle makes three times
Remaining air content is less than 0.1 % in kettle, and is passed through 2.0 MPa N again2, 30 min are stood, are leaked hunting for reaction kettle, really
Gas reactor is emptied after protection device is air tight.Under the conditions of ensuring gastight, heat temperature raising is carried out under normal pressure, 70 DEG C carry out instead
It answers, the H-ZSM-35 of 500 revs/min of reaction kettle mixing speed, 4 hours reaction time, silica alumina ratio Si/Al=16 of different quality is urged
Influence of the agent to dimethoxymethane and ethanol synthesis activity and selectivity of product is as shown in table 6.
As can be seen from Table 6, it at 70 DEG C, is reacted 4 hours under normal pressure, reactant dimethoxymethane and ethyl alcohol molar ratio
It is 1：When 1, when the quality of catalyst increases the conversion ratio increase of dimethoxymethane, ethyl alcohol, while ethoxymethyl) epoxide methane
Selectivity also increase, when catalyst quality be more than 7 g after, dimethoxymethane, the conversion ratio of ethyl alcohol and ethoxymethyl) epoxide
The selectivity variation of methane is little, the reason is that catalytic amount reaches saturation value.
Embodiment 7
Under condition of normal pressure, 38 g dimethoxymethane are added in 180 mL autoclaves, 23 g ethyl alcohol and 3 g are urged
Agent, catalyst are respectively the Hydrogen mercerising boiling of the Hydrogen ZSM-5 molecular sieve of silica alumina ratio Si/Al=16, silica alumina ratio Si/Al=16
Stone, the Hydrogen MCM-22 molecular sieves of silica alumina ratio Si/Al=16, silica alumina ratio Si/Al=16 Hydrogen Beta molecular sieves, temperature distinguish
N is used under the conditions of being 50 DEG C, 70 DEG C, 90 DEG C, 130 DEG C, 160 DEG C2Under the conditions of 1.0 MPa replace kettle in air three times,
So that remaining air content in kettle is less than 0.1%, and is passed through 2.0 MPa N again2, 30 min are stood, are leaked hunting for reaction kettle,
Ensure to empty gas reactor after device is air tight.Under the conditions of ensuring gastight, heat temperature raising reaction, reaction are carried out under normal pressure
500 revs/min of kettle mixing speed, 4 hours reaction time, various different topology structure catalyst at different temperatures under the conditions of it is former
Expect that the results are shown in Table 7 for dimethoxymethane and ethanol synthesis activity and selectivity of product.
As can be seen from Table 7, it reacts 4 hours in atmospheric conditions, reactant dimethoxymethane and ethyl alcohol molar ratio are
1：When 1, with the raising of temperature, the reaction of various catalysts, the conversion ratio of reactant dimethoxymethane and ethyl alcohol is all
Increase, high temperature is unfavorable for the raising of product ethoxymethyl) epoxide methane selectively.
Embodiment 8
38 g dimethoxymethane, 23 g ethyl alcohol, 3 g catalyst, catalyst point are added in 180 mL autoclaves
Not Wei the Hydrogen ZSM-5 molecular sieve of silica alumina ratio Si/Al=16, the h-mordenite of silica alumina ratio Si/Al=16, silica alumina ratio Si/Al=
16 Hydrogen MCM-22 molecular sieves, the Hydrogen Beta molecular sieves of silica alumina ratio Si/Al=16, use N at ambient temperature2In 1.0 MPa
Under the conditions of air in displacement kettle three times, so that remaining air content is less than 0.1 %, and be passed through 2.0 MPa N again2,
30 min are stood, are leaked hunting for reaction kettle, it is ensured that empty gas reactor after device is air tight.Under the conditions of ensuring gastight,
Heat temperature raising is carried out, temperature is 70 DEG C, and 500 revs/min of reaction kettle mixing speed, is respectively at 4 hours reaction time in pressure
It is reacted under 0.1 MPa, 1.5 MPa, 2.0 MPa, 6.0 MPa, 10.0 MPa, various catalyst condition at various pressures
Lower raw material dimethoxymethane and ethanol synthesis activity and selectivity of product are as shown in table 8.
As can be seen from Table 8, it at 70 DEG C, reacts 4 hours, reactant dimethoxymethane and ethyl alcohol molar ratio are 1：When 1,
The reaction of various catalysts, the conversion ratio for increasing stress reaction object dimethoxymethane and ethyl alcohol all increases, but product second
The selectivity of Oxymethoxy methane still conforms to the rule of embodiment 4.
Embodiment 9
38 g dimethoxymethane, 23 g ethyl alcohol are added in 180 mL autoclaves, catalyst is respectively 3 g silicon
The Hydrogen ZSM-5 molecular sieve of aluminium ratio Si/Al=16, the h-mordenite of silica alumina ratio Si/Al=16, silica alumina ratio Si/Al=16 hydrogen
Type MCM-22 molecular sieves, silica alumina ratio Si/Al=16 Hydrogen Beta molecular sieves, use N in atmospheric conditions2Under the conditions of 1.0 MPa
Air in displacement kettle three times, makes remaining air content in kettle be less than 0.1%, and be passed through 2.0 MPa N again2, stand 30
Min leaks hunting for reaction kettle, it is ensured that gas reactor is emptied after device is air tight.Under the conditions of ensuring gastight, under normal pressure into
Row heat temperature raising, 70 DEG C of reaction temperature, 500 revs/min of reaction kettle mixing speed, the reaction time is respectively 2 hours, 4 hours, it is 6 small
When, 8 hours, 10 hours, reaction result is as shown in table 9.
As can be seen from Table 9, in 70 DEG C, normal pressure, reactant dimethoxymethane and ethyl alcohol molar ratio are 1：When 1, increase
The conversion ratio of reaction time reactant dimethoxymethane and ethyl alcohol all increases, but the selectivity of product ethoxymethyl) epoxide methane
Still conform to the rule of embodiment 5.
The above is only several embodiments of the application, not does any type of limitation to the application, although this Shen
Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off
In the range of technical scheme, makes a little variation using the technology contents of the disclosure above or modification is equal to
Case study on implementation is imitated, is belonged in technical proposal scope.
Claims (1)
1. a kind of different topology structure system with molecular sieve for preparing is for ethoxymethyl) epoxide methanol method, which is characterized in that the method is with two
Methoxyl group methane and ethyl alcohol are raw material, at temperature and pressure, with the molecular sieve of different topology structure as catalyst, prepare second
Oxymethoxy methane；Different topology structure molecular sieve is respectively Hydrogen MCM-22 molecular sieves, Hydrogen ZSM-35 molecular sieve, Hydrogen
It is one or more in ZSM-5 molecular sieve, h-mordenite, Hydrogen Y zeolites, Hydrogen Beta molecular sieves；Different topology structure
The structure type of molecular sieve catalyst is selected from least one of MWW, FER, MFI, MOR, FAU, BEA；Hydrogen MCM-22 molecules
Atomic ratio Si/Al=5 ~ 100 of silicon and aluminium in sieve；Atomic ratio Si/Al=5 of silicon and aluminium in the Hydrogen ZSM-35 molecular sieve ~
100；Atomic ratio Si/Al=5 ~ 100 of silicon and aluminium in the Hydrogen ZSM-5 molecular sieve；Silicon and aluminium in the h-mordenite
Atomic ratio Si/Al=5 ~ 50；Atomic ratio Si/Al=3 ~ 50 of silicon and aluminium in the Hydrogen Y zeolites；In the Hydrogen Beta molecular sieves
Atomic ratio Si/Al=5 ~ 100 of silicon and aluminium；The reaction temperature is 25-80 DEG C, and reaction pressure is 0.1~1.5 MPa, when reaction
Between be 2-4 hour, filling gas in inert gas argon gas, helium, carbon dioxide or one kind in nitrogen or mixing
Gas；Reactor is tank reactor；The raw material dimethoxymethane and ethyl alcohol molar ratio are 1:1 or 5:1.
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| Methoxymethylation of alcohols catalyzed by sulfated metal oxides;Chiu-Hsun Lin等;《Catalysis Letters》;20030430;第87卷;253-256 * |
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