CN206168431U - Acetonitrile production response ware - Google Patents
Acetonitrile production response ware Download PDFInfo
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- CN206168431U CN206168431U CN201621217243.1U CN201621217243U CN206168431U CN 206168431 U CN206168431 U CN 206168431U CN 201621217243 U CN201621217243 U CN 201621217243U CN 206168431 U CN206168431 U CN 206168431U
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- formalin
- pipeline
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Abstract
The utility model provides an acetonitrile production response ware, is equipped with the reation kettle that the area pressed from both sides the cover, is equipped with the baffle of vertical setting in the reation kettle, and reation kettle separates through the baffle has two cavities of the communicating left and right sides in upper portion, and the top of every cavity all is equipped with the feed inlet, and the bottom of every cavity all is equipped with the discharge gate, the last mixed pipeline of material that is equipped with two cavities of intercommunication of reation kettle the material hybrid tube is connected on the road and is equipped with the supply pipeline of supplying with sodium hydroxide solution and formalin the last control mechanism who supplies with the pipeline that is equipped with of reation kettle. The utility model discloses establish two cavities in the reation kettle, two interior mixed pipelines of through -put material of cavity realize handing over cross -flow to move for each material is mixed more fully, more even, other establishes the sodium hydroxide solution conveying pipe, the formalin conveying pipe adds to the mixed pipeline of material, is convenient for handle the pipeline and stops up.
Description
Technical field
This utility model is related to a kind of chemical industry equipment, and more particularly to a kind of acetonitrile produces reactor.
Background technology
Acetonitrile also known as methyl cyanide, colourless liquid, highly volatile has the special odor similar to ether, there is excellent solvent borne
Can, various organic and inorganic and gaseous matter can be dissolved.There is certain toxicity, with water and alcohol infinitely dissolve.Acetonitrile can occur typically
Nitrile reacts, and be used to prepare many typical nitrogen-containing compounds, is an important organic intermediate.Acetonitrile can be used to synthesize
The solvent of vitamin A, cortisone, carbon amine drug and its intermediate, is additionally operable to manufacture activity Jie of vitamin B1 and aminoacid
Matter solvent.Chlorinated solvent can be replaced.For vinyl coating, the extractant of fatty acid, alcotate, butadiene extraction are also served as
The solvent of agent and acrylonitrile synthetic fiber is taken, in textile dyeing, illumination, also there are many use in spice manufacture and sensitive material manufacture
On the way.
Sodium hydroxide solution, formalin are typically applied directly to existing acetonitrile reaction device the feeding line of acetonitrile reaction device
On, due to containing granule in sodium hydroxide solution, formalin, feeding line is so easily blocked, process trouble.In addition, existing
What the agitating device being combined by reactor for having various materials in acetonitrile reaction device was realized, agitating device is directly and material
Contact, material can to agitating device in each parts produce corrosion, easily cause the destruction of agitating device, service life is short,
Maintenance cost is high, and existing acetonitrile reaction device only has temperature elevation system, and but without cooling system, temperature is too high, can affect acetonitrile
Reaction, reduces reaction efficiency.
The content of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, there is provided a kind of reasonable in design, is made
Reactor is produced with convenient acetonitrile.
Technical problem to be solved in the utility model is realized by following technical scheme.This utility model is
A kind of acetonitrile produces reactor, is characterized in, is provided with the reactor of jacketed, vertically arranged dividing plate is provided with reactor, instead
Answer kettle to separate the left and right two chambers for having top to communicate by dividing plate, be equipped with charging aperture at the top of each chamber, each chamber
Bottom be equipped with discharging opening, the material mixed pipe line of two chambers is communicated with reactor, in the material mixed pipe line
On be connected with supply sodium hydroxide solution and formalin feeding pipe, the control of feeding pipe is provided with the reactor
Mechanism processed.
Technical problem to be solved in the utility model can also further be realized by following technical scheme, described
The discharging that includes the feed pipe connected with one of chamber roof and connect with another cavity bottom of material mixed pipe line
Pipe, is provided with mixing pump between discharge nozzle and feed pipe.
Technical problem to be solved in the utility model can also further be realized by following technical scheme, described
Material mixed pipe line be provided with the reflux line with reflux pump, the inlet of reflux line is by going out liquid shunt conduit with two
The bottom connection of chamber, the liquid outlet of reflux line is connected by feed liquor shunt conduit with the top of two chambers.
Technical problem to be solved in the utility model can also further be realized by following technical scheme, in institute
State reactor and be provided with the temperature control mechanism connected with chuck, reactor is provided with the interlock system of temperature control mechanism.
Technical problem to be solved in the utility model can also further be realized by following technical scheme, described
Temperature control mechanism include realize heat up steam circulation pipeline and realize cooling freezing water circulation pipe.
Technical problem to be solved in the utility model can also further be realized by following technical scheme, described
Interlock system include being located at temperature sensor in reacting kettle jacketing, temperature sensor is by control line and temperature control mechanism phase
Connect.
Technical problem to be solved in the utility model can also further be realized by following technical scheme, described
Feeding pipe include sodium hydroxide solution feed pipe and formalin feed pipe, formaldehyde pump is housed on formalin feed pipe,
Lye pump is housed on sodium hydroxide solution feed pipe, formaldehyde pump, lye pump connect with controlling organization.
Compared with prior art, this utility model sets two chambers in reactor, the material in two chambers by every
Plate top communicates and material mixed pipe line is realized intersecting or circulating so that each material mixes more fully, evenly, with biography
The agitating device of system compares, it is to avoid agitating device and the directly contact of material, improves the service life of device, and the company of reducing
Connection device, simple structure reduces reaction cost, and the mixing of material reduces energy consumption by the cross flow one of liquid；By another
If sodium hydroxide solution feed pipe, formalin feed pipe are added to material mixed pipe line, it is easy to processing pipeline to block；Temperature control is set
Mechanism, can be with the reaction temperature in effective control reactor；And by interlock system, the technical process of process units is supervised
Visual alarm, process control and production management, equipment design strict implement design of pressure vessels regulation, and by regulation valving,
The harm for preventing superpressure from causing.
Description of the drawings
Fig. 1 is the first structural representation of the present utility model；
Fig. 2 is second structural representation of the present utility model；.
Specific embodiment
Referring to the drawings, concrete technical scheme of the present utility model is further described, in order to those skilled in the art
Member is further understood that this utility model, and does not constitute the restriction to its right.
A kind of embodiment 1, acetonitrile produces reactor, is provided with the reactor 1 of jacketed, reactor 1 and is provided with vertically arranged
Dividing plate 6, reactor 1 separates the left and right two chambers for having that top communicates, charging is equipped with the top of each chamber by dividing plate 6
Mouthfuls 5, the bottom of each chamber is equipped with discharging opening 4, and the material mixed pipe line of two chambers is communicated with reactor 1, can be with
The different two chambers of connection, it is also possible to connect same chamber, on the material mixed pipe line supply hydroxide is connected with
The feeding pipe of sodium solution and formalin, is provided with the controlling organization of feeding pipe on the reactor 1.
Embodiment 2, with reference to Fig. 1, the acetonitrile production reactor described in embodiment 1, described material mixed pipe line include with
Feed pipe 7 that one of chamber roof connects and the discharge nozzle 13 connected with another cavity bottom, discharge nozzle 13 and charging
Mixing pump 8 is provided between pipe 7.
Embodiment 3, with reference to Fig. 2, the acetonitrile production reactor described in embodiment 1, described material mixed pipe line is provided with band
There is a reflux line 15 of reflux pump 16, the inlet of reflux line 15 is by going out the bottom phase of liquid shunt conduit 17 and two chambers
Connect, the liquid outlet of reflux line 15 is connected by feed liquor shunt conduit 14 with the top of two chambers.
Embodiment 4, the acetonitrile production reactor described in embodiment 1, is provided with the control connected with chuck on the reactor 1
Warm mechanism, reactor 1 is provided with the interlock system of temperature control mechanism.
Embodiment 5, the acetonitrile production reactor described in embodiment 1, described temperature control mechanism includes the steam for realizing heating up
Circulation line 2 and the freezing water circulation pipe 3 of realization cooling.
Embodiment 6, the acetonitrile production reactor described in embodiment 1, described interlock system includes being located at the chuck of reactor 1
Interior temperature sensor, temperature sensor is connected by control line with temperature control mechanism.
Embodiment 7, the acetonitrile production reactor described in embodiment 1, described feeding pipe includes sodium hydroxide solution feeding
Pipe 9 and formalin feed pipe 11, are equipped with formaldehyde pump 12, in sodium hydroxide solution feed pipe 9 on formalin feed pipe 11
Upper that lye pump 10 is housed, formaldehyde pump 12, lye pump 10 connect with controlling organization.
A kind of embodiment 8, acetonitrile preparation method, the method uses the acetonitrile production reactor described in embodiment 1-7, the party
Method is as follows,
（1）Charging：First the charging aperture by acetonitrile raw material from the top of reactor adds its corresponding within the chamber, one of chamber
The liquid level of room reaches 70-80%, the liquid level of another chamber is reached after 50-60%, starts batch mixing；
（2）Batch mixing：The acetonitrile raw material of one of within the chamber is drawn back to another chamber by material mixed pipe line, or
Person draws back the acetonitrile raw material of one of within the chamber to former chamber, meanwhile, addition mass fraction is from material mixed pipe line
20% sodium hydroxide solution and mass fraction are 37% formalin, are constituted between two chambers or between same chamber
Matter Transfer so that the material in reactor is sufficiently mixed reaction；
（3）Temperature control：During the course of the reaction, by the temperature control in reactor at 54-62 DEG C；When the charging of reactor is cut
When disconnected or temperature reaches 70 DEG C, the charging of formalin and NaOH solution will be stopped；
（4）Discharging：After material is sufficiently mixed reaction, continuously extract out from discharge outlet, deliver to acetonitrile drying tower, complete one
Individual production process.
A kind of embodiment 9, acetonitrile preparation method, the method uses the acetonitrile production reactor described in embodiment 1-7, its side
Method is as follows,
（1）Charging：Acetonitrile raw material is first added the left chamber of reactor 1 from the left side charging aperture at the top of reactor 1, is treated
After liquid level in left chamber reaches 70%, acetonitrile raw material is added to right chamber from right side charging aperture, until the liquid of right chamber
After position reaches 60%, right chamber stops charging, and left chamber continues to feed；
（2）Batch mixing：Acetonitrile raw material in right chamber is extracted out from material mixed pipe line and is back to left chamber, meanwhile,
The formalin that mass fraction is 37% is added to into material mixed pipe line from formalin feed pipe, is 20% by mass fraction
NaOH solution is added to material mixed pipe line from sodium hydroxide solution feed pipe, by the inner-outer circulation of material in two chambers, makes
Material in reactor is sufficiently mixed；
（3）Temperature control：When the temperature in reactor is less than 54 DEG C, by steam circulation pipeline, the external jacket that comes into operation low pressure
Steam, by the temperature control in reactor at 54-62 DEG C；When the temperature in reactor is higher than 62 DEG C, by freezing water circulation
Pipeline, the external jacket that comes into operation chilled water, by the temperature control in reactor at 54-62 DEG C；When reactor charging be cut off or
When temperature reaches 70 DEG C, interlock system will stop entering for the operation of formaldehyde pump and lye pump, interruption formalin and NaOH solution
Material；
（4）Discharging：After material is sufficiently mixed reaction, continuously extract out from discharge outlet, deliver to acetonitrile drying tower.
A kind of embodiment 10, acetonitrile preparation method, the method produces reactor using the acetonitrile described in embodiment 1-7, its
Method is as follows,
（1）Charging：Acetonitrile raw material is first added the left chamber of reactor 1 from the left side charging aperture at the top of reactor 1, is treated
After liquid level in left chamber reaches 80%, acetonitrile raw material is added to right chamber from right side charging aperture, until the liquid of right chamber
After position reaches 50%, right chamber stops charging, and left chamber continues to feed；
（2）Batch mixing：Acetonitrile raw material in right chamber is extracted out from material mixed pipe line and is back to right chamber, meanwhile,
The formalin that mass fraction is 37% is added to into material mixed pipe line from formalin feed pipe, is 20% by mass fraction
NaOH solution is added to material mixed pipe line from sodium hydroxide solution feed pipe, by the inner-outer circulation of material in two chambers, makes
Material in reactor is sufficiently mixed；
（3）Temperature control：When the temperature in reactor is less than 54 DEG C, by steam circulation pipeline, the external jacket that comes into operation low pressure
Steam, by the temperature control in reactor at 54-62 DEG C；When the temperature in reactor is higher than 62 DEG C, by freezing water circulation
Pipeline, the external jacket that comes into operation chilled water, by the temperature control in reactor at 54-62 DEG C；When reactor charging be cut off or
When temperature reaches 70 DEG C, interlock system will stop entering for the operation of formaldehyde pump and lye pump, interruption formalin and NaOH solution
Material；
（4）Discharging：After material is sufficiently mixed reaction, continuously extract out from discharge outlet, deliver to acetonitrile drying tower.
A kind of embodiment 11, acetonitrile preparation method, the method produces reactor using the acetonitrile described in embodiment 1-7, its
Method is as follows,
（1）Charging：Acetonitrile raw material is first added the right chamber of reactor 1 from the right side charging aperture at the top of reactor 1, is treated
After liquid level in right chamber reaches 75%, acetonitrile raw material is added to left chamber from left side charging aperture, until the liquid of left chamber
After position reaches 55%, left chamber stops charging, and right chamber continues to feed；
（2）Batch mixing：Acetonitrile raw material in left chamber is extracted out from material mixed pipe line and is back to right chamber, meanwhile,
The formalin that mass fraction is 37% is added to into material mixed pipe line from formalin feed pipe, is 20% by mass fraction
NaOH solution is added to material mixed pipe line from sodium hydroxide solution feed pipe, by the inner-outer circulation of material in two chambers, makes
Material in reactor is sufficiently mixed；
（3）Temperature control：When the temperature in reactor is less than 54 DEG C, by steam circulation pipeline, the external jacket that comes into operation low pressure
Steam, by the temperature control in reactor at 54-62 DEG C；When the temperature in reactor is higher than 62 DEG C, by freezing water circulation
Pipeline, the external jacket that comes into operation chilled water, by the temperature control in reactor at 54-62 DEG C；When reactor charging be cut off or
When temperature reaches 70 DEG C, interlock system will stop entering for the operation of formaldehyde pump and lye pump, interruption formalin and NaOH solution
Material；
（4）Discharging：After material is sufficiently mixed reaction, continuously extract out from discharge outlet, deliver to acetonitrile drying tower.
Embodiment 12, the acetonitrile preparation method described in embodiment 8-11, the Stress control in the reactor exists
0.012MPa, the inlet amount of the reactor is 1200KG/h.
Embodiment 13, the acetonitrile preparation method described in embodiment 8-11, the Stress control in the reactor exists
0.012MPa, the inlet amount of the reactor is 1200KG/h.
Embodiment 14, the acetonitrile preparation method described in embodiment 8-11, the Stress control in the reactor exists
0.016MPa, the inlet amount of the reactor is 1800KG/h.
Embodiment 15, the acetonitrile preparation method described in embodiment 8-11, the Stress control in the reactor exists
0.014MPa, the inlet amount of the reactor is 1500KG/h.
Embodiment 16, the acetonitrile preparation method described in embodiment 8-11, the incorporation time of the material is 25s.
Embodiment 17, the acetonitrile preparation method described in embodiment 8-11, the incorporation time of the material is 35s.
Embodiment 18, the acetonitrile preparation method described in embodiment 8-11, the incorporation time of the material is 30s.
This utility model acetonitrile reaction device increased material mixed pipe line, it is ensured that material is sufficiently mixed uniformly in reactor,
Reaction is more complete；Sodium hydroxide solution, formalin are added in material mixed pipe line, and addition point valve before filter
Afterwards, it is easy to processing pipeline to block；Acetonitrile reaction device temperature is relevant with sodium hydroxide solution, formalin addition；Work as medicament
When amount adds excessive, temperature of reactor superelevation.Arranging chilled brine line can be with too high this problem of effective control temperature of reactor；
Using DCS（That is automatic control system）Monitoring warning, process control and production management are carried out to the technical process of process units；If
Standby design strict implement design of pressure vessels regulation, and by regulation valving, the harm for preventing superpressure from causing.
Concrete technical scheme of the present utility model described further below, in order to those skilled in the art further
Understand this utility model, and do not constitute the restriction to its right.
Claims (7)
1. a kind of acetonitrile produces reactor, it is characterised in that is provided with the reactor of jacketed, is provided with vertically arranged in reactor
Dividing plate, reactor separates the left and right two chambers for having top to communicate by dividing plate, charging aperture is equipped with the top of each chamber, often
The bottom of individual chamber is equipped with discharging opening, and the material mixed pipe line of two chambers is communicated with reactor, mixed in the material
The feeding pipe that supply sodium hydroxide solution and formalin are connected with pipeline is closed, on the reactor supply pipe is provided with
The controlling organization on road.
2. acetonitrile according to claim 1 produces reactor, it is characterised in that described material mixed pipe line includes and it
In a chamber roof feed pipe for connecting and the discharge nozzle connected with another cavity bottom, set between discharge nozzle and feed pipe
There is mixing pump.
3. acetonitrile according to claim 1 produces reactor, it is characterised in that described material mixed pipe line is provided with and carries
The reflux line of reflux pump, the inlet of reflux line is by going out the bottom connection of liquid shunt conduit and two chambers, return duct
The liquid outlet in road is connected by feed liquor shunt conduit with the top of two chambers.
4. acetonitrile according to claim 1 produces reactor, it is characterised in that is provided with the reactor and connects with chuck
Logical temperature control mechanism, reactor is provided with the interlock system of temperature control mechanism.
5. acetonitrile according to claim 4 produces reactor, it is characterised in that described temperature control mechanism includes realizing heating up
Steam circulation pipeline and realize cooling freezing water circulation pipe.
6. acetonitrile according to claim 4 produces reactor, it is characterised in that described interlock system includes being located at reaction
Temperature sensor in kettle chuck, temperature sensor is connected by control line with temperature control mechanism.
7. acetonitrile according to claim 1 produces reactor, it is characterised in that described feeding pipe includes that sodium oxide is molten
Liquid feed pipe and formalin feed pipe, are equipped with formaldehyde pump, on sodium hydroxide solution feed pipe on formalin feed pipe
Equipped with lye pump, formaldehyde pump, lye pump connect with controlling organization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621217243.1U CN206168431U (en) | 2016-11-11 | 2016-11-11 | Acetonitrile production response ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621217243.1U CN206168431U (en) | 2016-11-11 | 2016-11-11 | Acetonitrile production response ware |
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| Publication Number | Publication Date |
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| CN206168431U true CN206168431U (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621217243.1U Active CN206168431U (en) | 2016-11-11 | 2016-11-11 | Acetonitrile production response ware |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362671A (en) * | 2016-11-11 | 2017-02-01 | 江苏斯尔邦石化有限公司 | Acetonitrile production reactor and preparing method thereof |
-
2016
- 2016-11-11 CN CN201621217243.1U patent/CN206168431U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362671A (en) * | 2016-11-11 | 2017-02-01 | 江苏斯尔邦石化有限公司 | Acetonitrile production reactor and preparing method thereof |
| CN106362671B (en) * | 2016-11-11 | 2019-06-21 | 江苏斯尔邦石化有限公司 | A kind of acetonitrile production reactor and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 222000 Jiangsu, Lianyungang City, Xuwei District, Lianyungang District, two Road North Patentee after: Jiangsu sailboat Petrochemical Co. Ltd. Address before: 222000 room 205, building 7, Hong Kong Petrochemical, Hong Kong Road, Xuwei New District, Lianyungang, Jiangsu Patentee before: Jiangsu sailboat Petrochemical Co. Ltd. |
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| CP02 | Change in the address of a patent holder |