CN208104257U - Chromatographic pure dichloromethane production system and production line - Google Patents
Chromatographic pure dichloromethane production system and production line Download PDFInfo
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- CN208104257U CN208104257U CN201721173615.XU CN201721173615U CN208104257U CN 208104257 U CN208104257 U CN 208104257U CN 201721173615 U CN201721173615 U CN 201721173615U CN 208104257 U CN208104257 U CN 208104257U
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Abstract
A kind of chromatographic pure dichloromethane production system and production line, it is related to chemical products purifier apparatus field, chromatographic pure dichloromethane production system includes sequentially connected reaction kettle, rectifying still, rectifying column, finished pot, 4A molecular sieve column, cation exchange column, filter, wherein reaction kettle includes autoclave body, extend vertically into the intracorporal agitating shaft of kettle, and the driving motor of driving agitating shaft rotation, feed inlet and discharge gate are respectively arranged at the top and bottom of autoclave body, it is installed in autoclave body on agitating shaft, and blade setting up and down, more stirrer gears are provided on each blade, the chromatographic pure dichloromethane production system it is easy to operate, it is easy to use, it can purify to obtain chromatographic pure dichloromethane.Large-scale chromatographic pure dichloromethane production is able to carry out by the chromatographic pure dichloromethane production line that above-mentioned chromatographic pure dichloromethane production system forms.
Description
Technical field
The utility model relates to chemical products purifier apparatus fields, raw in particular to a kind of chromatographic pure dichloromethane
Production system and production line.
Background technique
Chromatographically pure refers to the standard reagent or solvent for carrying out using when chromatography, the ultraviolet light absorption at low wavelength
It spends relatively low, under chromatographic condition, the peak of appointed compound can only occur, there can be no impurity peaks, therefore, chromatography pure reagent
Purity requirement is very high, in addition to the requirement to appointed compound content is very high, also has to impurity contents such as micronic dust therein, moisture
Very high requirement belongs to the scope of high purity reagent.Currently, domestic chromatographically pure market is mostly that external Reagent Company is monopolized, such as
Merck, Sigma, Fisher, Tedia etc., external Reagent Company's price is high, for domestic chromatographically pure user, will lead to
Cost is excessively high.Therefore, break monopolization of the foreign technology obstacle to the chromatographically pure technical field in China, establish what China had by oneself
The standardization industry of chromatography pure reagent has great meaning and effect.
Chromatographic pure dichloromethane is one of common liquid chromatogram mobile phase, both at home and abroad it has been reported that a variety of methylene chloride
Purifying process, purification process mainly includes：Including：Decoloration, absorption, rectifying, or decoloration, absorption, rectifying such as combine at the step
Suddenly, the shortcomings that these purification process is that product purity is not high, is unsatisfactory for scientific research requirements or yield is high, cost is excessively high.
Therefore, it is necessary to a kind of easy to operate, equipment for purifying of the good chromatographic pure dichloromethane of easy to use and refining effect.
Utility model content
It is easy to operate the purpose of this utility model is to provide a kind of chromatographic pure dichloromethane production system, it is easy to use,
It can purify to obtain chromatographic pure dichloromethane.
The another object of the utility model is to provide a kind of chromatographic pure dichloromethane production line, be able to carry out extensive
Chromatographic pure dichloromethane production.
What the embodiments of the present invention were realized in：
A kind of chromatographic pure dichloromethane production system comprising sequentially connected：
Reaction kettle, the container for neutralizing, being washed for sodium bicarbonate to be reacted, be added as the addition concentrated sulfuric acid；
Rectifying still, the container for being reacted as addition phosphorus pentoxide；
Rectifying column, for carrying out rectifying；
Finished pot, for collecting finished product；And
4A molecular sieve column, for carrying out 4A molecular sieve absorption；
Wherein, reaction kettle includes autoclave body, extends vertically into the intracorporal agitating shaft of kettle, and the driving electricity of driving agitating shaft rotation
Machine is respectively arranged with feed inlet and discharge gate at the top and bottom of autoclave body, be installed on agitating shaft in autoclave body and on divide into
The blade set is provided with more stirrer gears on each blade.
In the utility model preferred embodiment, above-mentioned chromatographic pure dichloromethane production system further include for carry out from
The cation exchange column of son exchange, and the filter for being filtered, 4A molecular sieve column, cation exchange column and filter
It is sequentially connected.
In the utility model preferred embodiment, above-mentioned chromatographic pure dichloromethane production system further includes feedstock transportation
Pump, feedstock transportation pump is connect with reaction kettle, for conveying raw material into reaction kettle automatically.
In the utility model preferred embodiment, above-mentioned chromatographic pure dichloromethane production system further includes being installed on reaction
The circulating pump of kettle, and the finished product delivery pump being installed between finished pot and 4A molecular sieve column, the bottom of reaction kettle, circulating pump and
The circulation line for carrying out circular response, finished pot, finished product delivery pump and 4A molecular sieve column are formed between the top of reaction kettle
Between form the circulation line for carrying out circulation absorption.
In the utility model preferred embodiment, between the bottom of aforesaid reaction vessel, circulating pump and the top of reaction kettle
Mixer is provided on the circulation line of formation.
In the utility model preferred embodiment, above-mentioned mixer includes the interior shell for being equipped with mixing chamber, and shell is equipped with
The inlet and liquid outlet being connected to mixing chamber, mixing chamber is interior to be equipped with the hollow mixing drum being connected to inlet, mixing drum
Side wall is equipped with multiple injection pipes, and reflux cylinder is arranged on mixing drum, and the cylinder that flows back offers refluxing opening far from one end of liquid outlet.
In the utility model preferred embodiment, above-mentioned chromatographic pure dichloromethane production system further includes being installed on rectifying
Condenser, the return tank of top of tower, rectifying column, condenser and return tank form the circulation line for carrying out infinite reflux.
It is equipped in the utility model preferred embodiment, at the top of aforesaid reaction vessel dense for being added dropwise in reaction kettle
The dropping tank of sulfuric acid；The activated carbon adsorption of gas for reacting generation in adsorption treatment reaction kettle is installed at the top of reaction kettle
Column；The bottom of reaction kettle is provided with the view cup for solution in observing response kettle.
In the utility model preferred embodiment, above-mentioned 4A molecular sieve column includes the interior cylinder for being equipped with cavity, cylinder
Both ends are connected separately with dismountable connector, and connector is equipped with the connecting hole being connected to cavity, cylinder and each connector it
Between be equipped with gasket, the middle part of gasket is equipped with filter screen, and adsorbent material is equipped in cavity, and adsorbent material is 4A molecular sieve；
Two pressing plates arranged up and down are additionally provided in cavity, adsorbent material is set between two pressing plates, and multiple through-holes are offered on pressing plate；
Two pressing plates are connected by connecting rod, and the spacing between two pressing plates is adjustable.
A kind of chromatographic pure dichloromethane production line comprising above-mentioned chromatographic pure dichloromethane production system.
The beneficial effect of the utility model embodiment is：The chromatographic pure dichloromethane production system of the utility model embodiment
Including sequentially connected reaction kettle, rectifying still, rectifying column, finished pot, 4A molecular sieve column, cation exchange column, filter, wherein
Reaction kettle includes autoclave body, extends vertically into the intracorporal agitating shaft of kettle, and the driving motor of driving agitating shaft rotation, the top of autoclave body
It is respectively arranged with feed inlet and discharge gate with bottom, blade in autoclave body and setting up and down is installed on agitating shaft, each
Be provided with more stirrer gears on blade, the chromatographic pure dichloromethane production system it is easy to operate, it is easy to use, can purify to obtain
Chromatographic pure dichloromethane.It is able to carry out by the chromatographic pure dichloromethane production line that above-mentioned chromatographic pure dichloromethane production system forms
Large-scale chromatographic pure dichloromethane production.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of chromatographic pure dichloromethane production system provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of reaction kettle in Fig. 1；
Fig. 3 is the structural schematic diagram of mixer in Fig. 1；
Fig. 4 is the decomposition texture schematic diagram of 4A molecular sieve column in Fig. 1.
Icon：100- chromatographic pure dichloromethane production system；001- feedstock transportation pump；002- reaction kettle；003- regards cup；
004- circulating pump；005- mixer；006- dropping tank；007- rectifying still；008- rectifying column；009- condenser；010- return tank；
011- finished pot；012- finished product delivery pump；013-4A molecular sieve column；014- cation exchange column；015- filter；016- activity
Charcoal adsorption column；101- autoclave body；102- first charging aperture；103- discharge gate；104- driving motor；105- agitating shaft；106- blade；
107- stirrer gear；108- second charging aperture；201- shell；202- inlet；203- liquid outlet；204- mixing chamber；205- stirring
Cylinder；206- injection pipe；207- reflux cylinder；208- refluxing opening；301- cylinder；302- cavity；303- connector；304- connecting hole；
305- gasket；306- filter screen；307- adsorbent material；308- pressing plate；309- through-hole；310- connecting rod.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings or this is practical new
Type product using when the orientation or positional relationship usually put, be merely for convenience of describing the present invention and simplifying the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It should not be understood as limiting the present invention.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of chromatographic pure dichloromethane production systems 100 comprising sequentially connected：
The reaction kettle 002 for the container neutralized for sodium bicarbonate to be reacted, be added as the addition concentrated sulfuric acid, washed；For making
For the rectifying still 007 that the container that phosphorus pentoxide is reacted is added；For carrying out the rectifying column 008 of rectifying；For collect at
The finished pot 011 of product；For carrying out the 4A molecular sieve column 013 of 4A molecular sieve absorption；Cation for carrying out ion exchange is handed over
Change column 014；And the filter 015 for being filtered.
Wherein, shown in Figure 2, reaction kettle 002 includes autoclave body 101, extends vertically into the agitating shaft 105 in autoclave body 101, with
And the driving motor 104 that driving agitating shaft 105 rotates, the top and bottom of autoclave body 101 are respectively arranged with feed inlet and discharge gate
103, feed inlet includes first charging aperture 102 and second charging aperture 108, be installed on agitating shaft 105 in autoclave body 101 and
Blade 106 setting up and down is provided with more stirrer gears 107 on each blade 106.Blade 106 is plate-like, and is vertically arranged,
The length of stirrer gear 107 on each blade 106 is sequentially reduced with the direction far from agitating shaft 105, on two blades 106
Stirrer gear 107 is oppositely arranged.When in use, raw material is entered in autoclave body 101 reaction kettle 002 by first charging aperture 102, and starting is driven
Dynamic motor 104, the rotation of agitating shaft 105 drive two blades 106 to rotate in autoclave body 101, stir the solution in autoclave body 101 or more
While Rolling flow, also bottom horizontal flow sheet in the gap between each stirrer gear 107, to maximumlly be uniformly mixed, instead
It should be abundant.
The height of rectifying column 008 is 2m~30m, and internal diameter is 4cm~220cm, loads glass spring filler, stainless steel in tower
At least one of western tower ring, stainless steel structured packing and ceramic packing；The model of cation exchange column 014
ABD1UPW3EH1+IDO10-PFA-3/4300；Filter 015 is 200nm filter 015, model
FLHF20010M3F300+IDO10-PFA-3/4 300,015 material of filter are virgin pp or pure polytetrafluoroethylene (PTFE).
In the present embodiment, chromatographic pure dichloromethane production system 100 further includes feedstock transportation pump 001, feedstock transportation pump 001
With reaction kettle 002, connected particular by first charging aperture 102, for being conveyed raw material into reaction kettle 002 automatically.
In the present embodiment, chromatographic pure dichloromethane production system 100 further includes the circulating pump 004 for being installed on reaction kettle 002,
And it is installed on the finished product delivery pump 012 between finished pot 011 and 4A molecular sieve column 013, the bottom of reaction kettle 002 (passes through row
Material mouth 103), formed between circulating pump 004 and the top (passing through second charging aperture 108) of reaction kettle 002 it is anti-for recycle
The circulation line answered is formed between finished pot 011, finished product delivery pump 012 and 4A molecular sieve column 013 for carrying out circulation absorption
Circulation line.It is provided on the circulation line formed between the bottom of reaction kettle 002, circulating pump 004 and the top of reaction kettle 002
Mixer 005, specifically, the top of the bottom of reaction kettle 002, view cup 003, circulating pump 004, mixer 005 and reaction kettle 002
Form circulation line.
Shown in Figure 3, mixer 005 includes the interior shell 201 for being equipped with mixing chamber 204, and shell 201 is equipped with and mixing chamber
The inlet 202 and liquid outlet 203 of 204 connections, mixing chamber 204 is interior to be equipped with the hollow mixing drum being connected to inlet 202
205, the side wall of mixing drum 205 is equipped with multiple injection pipes 206, and reflux cylinder 207 is arranged on mixing drum 205, and reflux cylinder 207 is separate
One end of liquid outlet 203 offers refluxing opening 208.Mixer 005 is using rotatable mixing drum 205 and is sheathed on mixing drum
Reflux cylinder 207 on 205 cooperates, and solution enters mixing drum 205 by inlet 202, using the setting of 205 side wall of mixing drum
It in the dispersion of injection pipe 206 injection to reflux cylinder 207, and flows, is flowed out by the refluxing opening 208 of reflux cylinder 207 in opposite direction,
Mixer 005 is flowed out eventually by liquid outlet 203, keep the solution by mixer 005 fully dispersed and is uniformly mixed.Injection pipe
206 extend to 203 direction of liquid outlet, and the angle between injection pipe 206 and the axis of mixing drum 205 is 15~45 degree.Injection
Pipe 206 extends and is obliquely installed to 203 direction of liquid outlet, can make the solution ejected by mixing drum 205 and injection pipe 206
One end distance first is moved along injection direction, subsequently reverse direction is mobile, can be further improved the dispersion and degree of mixedness of mixed liquor.
In the present embodiment, chromatographic pure dichloromethane production system 100 further includes the condenser for being installed on 008 top of rectifying column
009, return tank 010, rectifying column 008, condenser 009 and return tank 010 form the circulation line for carrying out infinite reflux, so as to
Sufficiently carry out rectifying.
In the present embodiment, the top of reaction kettle 002 is equipped with the dropping tank for the concentrated sulfuric acid to be added dropwise in reaction kettle 002
006；The top of reaction kettle 002 is equipped with the active carbon adsorption column of the gas for reacting generation in adsorption treatment reaction kettle 002
016；The bottom of reaction kettle 002 is provided with the view cup 003 for solution colour in observing response kettle 002.
Shown in Figure 4, in the present embodiment, 4A molecular sieve column 013 includes the interior cylinder 301 for being equipped with cavity 302, cylinder
301 both ends are connected separately with dismountable connector 303, and connector 303 is equipped with the connecting hole 304 being connected to cavity 302, column
Gasket 305 is equipped between body 301 and each connector 303, the middle part of gasket 305 is equipped with filter screen 306, cavity 302
Interior to be equipped with adsorbent material 307, the adsorbent material 307 filled in 4A molecular sieve column 013 is activating and regenerating type 4A molecular sieve.Cavity
Two pressing plates 308 arranged up and down are additionally provided in 302, adsorbent material 307 is set between two pressing plates 308, opens up on pressing plate 308
There are multiple through-holes 309；Two pressing plates 308 are connected by connecting rod 310, and its spacing is adjustable.
4A molecular sieve column 013 includes cylinder 301 and the connector 303 being detachably connected respectively with 301 both ends of cylinder, uses
Person can very easily separate connector 303 with cylinder 301, so that adsorbent material 307 is arranged inside cylinder 301
It takes out and is replaced in cavity 302, the gasket 305 being furthermore arranged between cylinder 301 and connector 303 can be avoided wait locate
The reagent of reason flows out or the dust of outside enters in cavity 302 and connecting hole 304 and pollutes, while two gaskets 305
The filter screen 306 of middle part setting can also stop the adsorbent material 307 being located between two gaskets 305, keep inhaling
Enclosure material 307 is stable to be located in cavity 302 and handles the solution for flowing through cavity 302.The setting of 307 two sides of adsorbent material
Pressing plate 308 can further limit the position of adsorbent material 307, while can adjust two pressing plates 308 by connecting rod 310
Between spacing, to adjust the loosening degree of adsorbent material 307, to adjust the flow velocity that control solution flows through adsorbent material 307.
Shown in Figure 1, the application method of chromatographic pure dichloromethane production system 100 is as follows：
(1) using the methylene chloride of technical grade as raw material, reaction kettle 002 is transported to by feedstock transportation pump 001, is closed former
Material conveying pump 001, and circulating pump 004 is opened, establish the bottom for forming reaction kettle 002, view cup 003, circulating pump 004, mixer
005 and reaction kettle 002 top circulation line, open equipped with the concentrated sulfuric acid dropping tank 006 valve, into reaction kettle 002
Methylene chloride in the concentrated sulfuric acid is added dropwise, the solution in reaction kettle 002 carries out circular response in circulation line, pass through view cup 003
The color of reaction solution in observing response kettle 002 closes the valve of dropping tank 006 until the solution in reaction kettle 002 is colourless
Door stops that the concentrated sulfuric acid is added dropwise.
(2) sodium bicarbonate is added in the solution into reaction kettle 002 (i.e. the addition resulting solution of strong sulfuric acid response), according to
The dosage of the concentrated sulfuric acid, determines the dosage of sodium bicarbonate, and the gas that reaction generates in reaction kettle 002 is inhaled through active carbon adsorption column 016
It is attached to be emitted into atmosphere.
(3) 15L water is added in the 1500L solution into reaction kettle 002 (solution i.e. after the neutralization of addition sodium bicarbonate),
Circulation washing 2 hours is sufficiently carried out in circulation line, closes circulating pump 004, is stood 2.5 hours, is restarted circulating pump 004,
Circulation washing 3 minutes, stand 2.5 hours in circulation line.
(4) start circulating pump 004, lower layer's solution in reaction kettle 002 is passed through into circulating pump 004, is transported to rectifying still 007
In, pay attention to observation view cup 003, closes circulating pump 004 in time, the water by upper layer in reaction kettle 002 is avoided to be transported to rectifying still
007, water remaining in reaction kettle 002 is emitted into cesspool；Then to the 1500L solution of rectifying still 007 (under after washing
Layer solution) in be added 500g phosphorus pentoxide, be stirred to react 2 hours.
(5) rectifying is begun to warm up to the solution (phosphorus pentoxide is added and reacts resulting solution) in rectifying still 007, generated
Gas pass through rectifying column 008, and infinite reflux, infinite reflux 2 are established between rectifying column 008, condenser 009 and return tank 010
Hour, then start to produce, remove extraction front and back slop cut, extraction midbarrel qualified product (i.e. finished product) is transported to finished product
Tank 011.
(6) finished product delivery pump 012,4A molecular sieve column 013 are opened, foundation forms finished pot 011,012 and of finished product delivery pump
Circulation line between 4A molecular sieve column 013, finished product (i.e. the resulting solution of the rectifying) circulation in finished pot 011 are passed through 4A molecule
Circulation absorption is carried out in sieve column 013, controls flow velocity 1m/s of the solution in 4A molecular sieve column 013, circulation time 20 hours.
(7) liquid (solution after being adsorbed by 4A molecular sieve) in finished pot 011 is defeated by finished product delivery pump 012
It send, ion exchange is carried out by cation exchange column 014.
(8) the resulting solution of ion exchange is filtered by filter 015, is bottled to get methylene chloride product is arrived.
Second embodiment
Shown in Figure 1, the present embodiment provides a kind of chromatographic pure dichloromethane production lines comprising in first embodiment
Chromatographic pure dichloromethane process units and head tank, products pot, head tank are connect with reaction kettle 002, and feedstock transportation pumps
001 is set to therebetween, and products pot is connect with filter 015.
In conclusion the chromatographic pure dichloromethane production system of the utility model is easy to operate, and it is easy to use, it can purify
Obtain chromatographic pure dichloromethane；It can by the chromatographic pure dichloromethane production line that above-mentioned chromatographic pure dichloromethane production system forms
Carry out large-scale chromatographic pure dichloromethane production.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of chromatographic pure dichloromethane production system, which is characterized in that it includes sequentially connected：
Reaction kettle, the container for neutralizing, being washed for sodium bicarbonate to be reacted, be added as the addition concentrated sulfuric acid；
Rectifying still, the container for being reacted as addition phosphorus pentoxide；
Rectifying column, for carrying out rectifying；
Finished pot, for collecting finished product；And
4A molecular sieve column, for carrying out 4A molecular sieve absorption；
Wherein, the reaction kettle includes autoclave body, extends vertically into the intracorporal agitating shaft of the kettle, and the driving agitating shaft rotation
Driving motor, be respectively arranged with feed inlet and discharge gate at the top and bottom of the autoclave body, be installed with position on the agitating shaft
In in the autoclave body and blade setting up and down, more stirrer gears are provided on each blade,
The chromatographic pure dichloromethane production system further includes the circulating pump for being installed on the reaction kettle, and is installed on finished pot
Finished product delivery pump between 4A molecular sieve column, the top of the bottom of the reaction kettle, the circulating pump and the reaction kettle it
Between form the circulation line for carrying out circular response, the finished pot, the finished product delivery pump and the 4A molecular sieve column it
Between form the circulation line for carrying out circulation absorption.
2. chromatographic pure dichloromethane production system according to claim 1, which is characterized in that the chromatographic pure dichloromethane
Production system further includes the cation exchange column for carrying out ion exchange, and the filter for being filtered, the 4A
Molecular sieve column, the cation exchange column and the filter are sequentially connected.
3. chromatographic pure dichloromethane production system according to claim 1, which is characterized in that the chromatographic pure dichloromethane
Production system further includes feedstock transportation pump, and feedstock transportation pump is connect with the reaction kettle, for raw material is conveyed automatically into
In the reaction kettle.
4. chromatographic pure dichloromethane production system according to claim 1, which is characterized in that the bottom of the reaction kettle,
Mixer is provided on the circulation line formed between the circulating pump and the top of the reaction kettle.
5. chromatographic pure dichloromethane production system according to claim 4, which is characterized in that the mixer includes interior sets
There is the shell of mixing chamber, the shell is equipped with the inlet and liquid outlet being connected to mixing chamber, is equipped with and institute in the mixing chamber
The hollow mixing drum of inlet connection is stated, the side wall of the mixing drum is equipped with multiple injection pipes, is arranged on the mixing drum
Flow back cylinder, and the reflux cylinder offers refluxing opening far from one end of the liquid outlet.
6. chromatographic pure dichloromethane production system according to claim 1, which is characterized in that the chromatographic pure dichloromethane
Production system further includes condenser, the return tank being installed at the top of the rectifying column, the rectifying column, the condenser and described
Return tank forms the circulation line for carrying out infinite reflux.
7. chromatographic pure dichloromethane production system according to claim 1, which is characterized in that pacify at the top of the reaction kettle
Equipped with the dropping tank for the concentrated sulfuric acid to be added dropwise in the reaction kettle；It is equipped at the top of the reaction kettle for adsorption treatment institute
State the active carbon adsorption column for the gas that reaction generates in reaction kettle；The bottom of the reaction kettle is provided with for observing the reaction
The view cup of solution in kettle.
8. chromatographic pure dichloromethane production system according to claim 1, which is characterized in that the 4A molecular sieve column includes
The interior cylinder equipped with cavity, the both ends of the cylinder are connected separately with dismountable connector, the connector be equipped with it is described
The connecting hole of cavity connection, is equipped with gasket, sets in the middle part of the gasket between the cylinder and each connector
There is filter screen, adsorbent material is equipped in the cavity, the adsorbent material is 4A molecular sieve；Cloth up and down is additionally provided in the cavity
Two pressing plates set, the adsorbent material are set between two pressing plates, and multiple through-holes are offered on the pressing plate；Two institutes
It states pressing plate to connect by connecting rod, the spacing between two pressing plates is adjustable.
9. a kind of chromatographic pure dichloromethane production line, which is characterized in that it includes as described in any item of the claim 1 to 8
Chromatographic pure dichloromethane production system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173615.XU CN208104257U (en) | 2017-09-11 | 2017-09-11 | Chromatographic pure dichloromethane production system and production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173615.XU CN208104257U (en) | 2017-09-11 | 2017-09-11 | Chromatographic pure dichloromethane production system and production line |
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| Publication Number | Publication Date |
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| CN208104257U true CN208104257U (en) | 2018-11-16 |
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2017
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