CN208378752U - A kind of phenylene dimethyl ether prepares reaction unit - Google Patents
A kind of phenylene dimethyl ether prepares reaction unit Download PDFInfo
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- CN208378752U CN208378752U CN201820546416.7U CN201820546416U CN208378752U CN 208378752 U CN208378752 U CN 208378752U CN 201820546416 U CN201820546416 U CN 201820546416U CN 208378752 U CN208378752 U CN 208378752U
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- reaction
- reaction flask
- dimethyl ether
- phenylene dimethyl
- loading hopper
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Abstract
The utility model discloses a kind of phenylene dimethyl ethers to prepare reaction unit, including pedestal, reaction flask, loading hopper, charging valve, gas tank, supported rod erecting, condenser pipe and asbestos stratum reticulare, middle side part is equipped with supported rod erecting on the pedestal, side is equipped with reaction placement rack in the middle part of the supported rod erecting, reaction flask is placed on the reaction placement rack, rubber stopper is installed in the feed inlet of the reaction flask upper end, loading hopper is provided on the upside of the reaction flask, liquid-feeding tube is connected on the downside of the loading hopper, and liquid-feeding tube extends to reaction flask internal upper part through rubber stopper, reaction flask top side is connected with condenser pipe, described condenser pipe one end is equipped with outlet tube, a kind of phenylene dimethyl ether of the utility model prepares reaction unit, it is reacted by putting into phenylene dimethyl ether raw material in reaction flask, by hydroquinone through sulfuric acid two Methyl esters or chloromethanes methylate and obtain, and have the property of azeotrope with water using terephthaldehyde's ether, improve the purity of phenylene dimethyl ether preparation.
Description
Technical field
The utility model relates to phenylene dimethyl ether technical field, specifically a kind of phenylene dimethyl ether prepares reaction unit.
Background technique
Phenylene dimethyl ether includes terephthaldehyde's ether and 1,2-dimethoxy benzene etc., and terephthaldehyde's ether is a kind of chemicals.White tablets
Shape crystallization.It is dissolved in ethyl alcohol, ether and benzene, it is not soluble in water.Has cloves smell.For organic synthesis intermediate, for producing drug first
Oxygen amine hydrochlorate.1,2-dimethoxy benzene also known as veratrole, molecular formula C8H10O2, sterling are colourless transparent liquid, and low temperature is solid
Body, there is extensive industrial use by 22~23 DEG C of fusing point, is a kind of important fine chemical material, is not only dimethomorph conjunction
A key intermediate in, and the reagent that can be used as detecting lactic acid in blood, measure glycerol.According to the difference of raw material, mesh
The production method of preceding 1,2-dimethoxy benzene mainly has catechol method, guaiacol method and adjacent halobenzene methyl ether method.Guaiacol be with
Catechol is the monomethylation product of raw material, and double methylates are 1,2-dimethoxy benzenes.And the methylation reaction of catechol
It is a consecutive reaction, Monomethylation needs specific reaction condition and catalyst.
Existing phenylene dimethyl ether technology of preparing has the following problems: existing phenylene dimethyl ether prepares consersion unit, to benzene two
Methyl ether preparation reaction is using the methylation of dimethyl suflfate normal pressure and halide pressurization two synthesis routes of methylation, sulfuric acid
Dimethyl ester normal pressure route of methylation be using hydroquinone as starting material, but existing equipment preparation phenylene dimethyl ether purity compared with
Low, equipment preparation efficiency is poor.
Utility model content
The purpose of this utility model is to provide a kind of phenylene dimethyl ethers to prepare reaction unit, to solve in the prior art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of phenylene dimethyl ether prepares reaction unit, wraps
Include pedestal, reaction flask, loading hopper, charging valve, gas tank, supported rod erecting, condenser pipe and asbestos stratum reticulare, on the upside of the pedestal in
Portion is equipped with supported rod erecting, and side is equipped with reaction placement rack in the middle part of the supported rod erecting, is placed on the reaction placement rack
Reaction flask is equipped with rubber stopper in the feed inlet of the reaction flask upper end, is provided with loading hopper on the upside of the reaction flask,
Liquid-feeding tube is connected on the downside of the loading hopper, and liquid-feeding tube extends to reaction flask internal upper part through rubber stopper, the reaction is burnt
Bottle top side is connected with condenser pipe, and described condenser pipe one end is equipped with outlet tube, and pedestal upper end side is placed with storing
Beaker, and the underface of outlet tube is arranged in storing beaker, the pedestal upper end other side is placed with gas tank, and the support is vertical
Bar is equipped with kitchen range by being connected with, and gas tank is connected with kitchen range by appendix.
Preferably, charging valve is installed on the liquid-feeding tube, is provided with graduation mark on the outside of the loading hopper.
Preferably, the reaction placement rack side is connected with attachment base, and attachment base is set on supported rod erecting, attachment base
Side is equipped with adjusting knob.
Preferably, top attachment base is installed on the upside of the reaction flask, the reaction placement rack is internally provided with asbestos
Stratum reticulare.
Preferably, the Its lower side is equipped with support leg, and the gas tank upper end is equipped with gas regulator, the stove
First side is equipped with ignition switch.
Compared with prior art, the utility model has the beneficial effects that the utility model is by throwing phenylene dimethyl ether raw material
Enter in reaction flask and reacted, methylated through dimethyl suflfate or chloromethanes by hydroquinone and obtained, utilizes terephthaldehyde's ether
Property with azeotrope with water improves the purity of phenylene dimethyl ether preparation, takes and improves reaction temperature and in the same of reaction
When steam the measures such as reaction product, due to reaction while product constantly remove so that reaction balance movement has occurred, promote
The progress of reaction, not only the mono-sodium salt of dimethyl suflfate can continue to participate in reaction, and the utilization of hydroquinone disodium salt
Rate is also improved, and reaction yield significantly improves；Heating temperature is provided by gas tank and kitchen range burning, firepower size is controllable
It adjusts, and convenient for continuously carrying out heating preparation for a long time.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the reaction placement rack structural schematic diagram of the utility model.
In figure: 1- pedestal, 2- reaction placement rack, 3- reaction flask, 4- rubber stopper, 5- loading hopper, 6- liquid-feeding tube, 7- charging
Valve, the top 8- attachment base, 9- gas tank, 10- appendix, 11- kitchen range, 12- gas regulator, 13- ignition switch, 14- support
Foot, 15- supported rod erecting, 16- storing beaker, 17- condenser pipe, 18- outlet tube, 19- asbestos stratum reticulare, 20- attachment base, 21- are adjusted
Knob.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to FIG. 1-2, in the utility model embodiment, a kind of phenylene dimethyl ether prepares reaction unit, including pedestal 1, anti-
Answer flask 3, loading hopper 5, charging valve 7, gas tank 9, supported rod erecting 15, condenser pipe 17 and asbestos stratum reticulare 19, middle side part on pedestal 1
Supported rod erecting 15 is installed, 15 middle part side of supported rod erecting is equipped with reaction placement rack 2, convenient for carrying out on the downside of reaction flask 3
Support is fixed, and is reacted and is placed with reaction flask 3 on placement rack 2, for being made as reaction vessel, 3 upper end of reaction flask
Feed inlet in rubber stopper 4 is installed, loading hopper 5 is provided on the upside of reaction flask 3, liquid-feeding tube 6 is connected on the downside of loading hopper 5,
Raw material is prepared convenient for addition, and liquid-feeding tube 6 extends to 3 internal upper part of reaction flask, 3 top side of reaction flask through rubber stopper 4
It is connected with condenser pipe 17, carries out being liquefied as droplet convenient for steam, 17 one end of condenser pipe is equipped with outlet tube 18,1 upper end of pedestal
Side is placed with storing beaker 16, and for storing terephthaldehyde's ether of preparation, and outlet tube 18 is being arranged in just in storing beaker 16
Lower section, the 1 upper end other side of pedestal are placed with gas tank 9, and supported rod erecting 15 is equipped with kitchen range 11 by being connected with, and gas tank 9
It is connected with kitchen range 11 by appendix 10, is burnt by gas tank and kitchen range and heating temperature is provided, firepower size controllable adjustable,
And convenient for continuously carrying out heating preparation for a long time.
By being equipped with charging valve 7 on liquid-feeding tube 6, it is provided with graduation mark on the outside of the loading hopper 5, is convenient for addition system
Standby raw material.
It is connected with attachment base 20 by reacting 2 side of placement rack, and attachment base 20 is set on supported rod erecting 15, attachment base
20 sides are equipped with adjusting knob 21, convenient for fixed use is adjusted to reaction placement rack 2.
By being equipped with top attachment base 8 on the upside of reaction flask 3, the reaction placement rack 2 is internally provided with asbestos stratum reticulare
19, it enables to be heated evenly on the downside of reaction flask 3, is conducive to improve reaction efficiency.
By being equipped with support leg 14 on the downside of pedestal 1,9 upper end of gas tank is equipped with gas regulator 12, convenient for adjusting
The size of firepower is saved, 11 side of kitchen range is equipped with ignition switch 13, is convenient for igniting and uses.
Working principle: it will be carried out in phenylene dimethyl ether raw material (benzenediol, dimethyl suflfate or chloromethanes) investment reaction flask 3
Reaction, while by gas tank 9 and kitchen range 11 to being heated on the downside of reaction flask 3, the terephthaldehyde's ether for completing preparation by
Condenser pipe 17 condenses, and flows into storing beaker 16 by outlet tube 18 and is stored, by hydroquinone through dimethyl suflfate or chloromethane
Alkane methylates and obtains, and has the property of azeotrope with water using terephthaldehyde's ether, improves the purity of phenylene dimethyl ether preparation, takes
It improves reaction temperature and steams the measures such as reaction product while reaction, since product constantly removes while reaction,
So that movement has occurred in reaction balance, the progress of reaction is promoted, not only the mono-sodium salt of dimethyl suflfate can continue to participate in instead
It answers, and the utilization rate of hydroquinone disodium salt is also improved, reaction yield significantly improves.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of phenylene dimethyl ether prepares reaction unit, including pedestal (1), reaction flask (3), loading hopper (5), charging valve (7), coal
Gas tank (9), supported rod erecting (15), condenser pipe (17) and asbestos stratum reticulare (19), it is characterised in that: middle side part on the pedestal (1)
It is equipped with supported rod erecting (15), side is equipped with reaction placement rack (2), the reaction placement rack in the middle part of the supported rod erecting (15)
(2) it is placed on reaction flask (3), rubber stopper (4), the reaction is installed in the feed inlet of reaction flask (3) upper end
It is provided with loading hopper (5) on the upside of flask (3), is connected with liquid-feeding tube (6) on the downside of the loading hopper (5), and liquid-feeding tube (6) runs through rubber
Rubber plug (4) extends to reaction flask (3) internal upper part, and reaction flask (3) the top side is connected with condenser pipe (17), described cold
Solidifying pipe (17) one end is equipped with outlet tube (18), and pedestal (1) the upper end side is placed with storing beaker (16), and storing beaker
(16) it is arranged in the underface of outlet tube (18), pedestal (1) the upper end other side is placed with gas tank (9), and the support is vertical
Bar (15) is equipped with kitchen range (11) by being connected with, and gas tank (9) and kitchen range (11) are connected by appendix (10).
2. a kind of phenylene dimethyl ether according to claim 1 prepares reaction unit, it is characterised in that: on the liquid-feeding tube (6)
It is equipped with charging valve (7), is provided with graduation mark on the outside of the loading hopper (5).
3. a kind of phenylene dimethyl ether according to claim 1 prepares reaction unit, it is characterised in that: the reaction placement rack
(2) side is connected with attachment base (20), and attachment base (20) is set on supported rod erecting (15), and attachment base (20) side is equipped with
Adjusting knob (21).
4. a kind of phenylene dimethyl ether according to claim 1 prepares reaction unit, it is characterised in that: the reaction flask (3)
Upside is equipped with top attachment base (8), and the reaction placement rack (2) is internally provided with asbestos stratum reticulare (19).
5. a kind of phenylene dimethyl ether according to claim 1 prepares reaction unit, it is characterised in that: on the downside of the pedestal (1)
It is equipped with support leg (14), gas tank (9) upper end is equipped with gas regulator (12), and kitchen range (11) side is equipped with
Ignition switch (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820546416.7U CN208378752U (en) | 2018-04-17 | 2018-04-17 | A kind of phenylene dimethyl ether prepares reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820546416.7U CN208378752U (en) | 2018-04-17 | 2018-04-17 | A kind of phenylene dimethyl ether prepares reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208378752U true CN208378752U (en) | 2019-01-15 |
Family
ID=64975666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820546416.7U Expired - Fee Related CN208378752U (en) | 2018-04-17 | 2018-04-17 | A kind of phenylene dimethyl ether prepares reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208378752U (en) |
-
2018
- 2018-04-17 CN CN201820546416.7U patent/CN208378752U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20200417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |