CN207391315U - A kind of high yield, high-quality butyl acrylate reaction retracting device - Google Patents
A kind of high yield, high-quality butyl acrylate reaction retracting device Download PDFInfo
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- CN207391315U CN207391315U CN201721350169.5U CN201721350169U CN207391315U CN 207391315 U CN207391315 U CN 207391315U CN 201721350169 U CN201721350169 U CN 201721350169U CN 207391315 U CN207391315 U CN 207391315U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/584—Recycling of catalysts
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Abstract
A kind of high yield, high-quality butyl acrylate reaction retracting device, belong to chemical reaction device field.Including reaction unit and retracting device, reaction unit includes first esterification reactor, the second esterifier, dehydrating tower and the first grease liquid separation tank, first esterification reactor and the series connection of the second esterifier；Retracting device includes catalyst extraction tower, caustic wash tower, the second grease liquid separation tank and blowdown drum, and blowdown drum is connected with sewage draining exit in the middle part of caustic wash tower, and the impurity that blowdown drum generates saponification excludes, and Propylene recovery acid butyl ester.The utility model is simple in structure, design is reasonable, serialization degree is high, esterification high conversion rate, effectively removes the impurity generated in system, improves the quality of acrylic products.
Description
Technical field
A kind of high yield, high-quality butyl acrylate reaction retracting device, belong to chemical reaction device field.
Background technology
Butyl acrylate is a kind of important Organic Chemicals, is mainly used as organic synthesis intermediate, adhesive, emulsification
Agent, coating, are industrially widely used.Preparation for butyl acrylate, it is domestic at present generally using acroleic acid esterification method, it should
The shortcomings that method is that reactant transformation efficiency is relatively low, and conversion rate is relatively low, and by-product should not remove totally in reaction process, shadow
Ring the quality of final butyl acrylate product.
The content of the invention
The technical problems to be solved in the utility model is：Overcome the deficiencies of the prior art and provide a kind of high yield, high-quality
Butyl acrylate reacts retracting device.
Technical solution is used by the utility model solves its technical problem：A kind of high yield, high-quality acrylic acid fourth
The reaction retracting device of ester, including reaction unit and retracting device, it is characterised in that：It is anti-that the reaction unit includes the first esterification
Device, the second esterifier, dehydrating tower and the first grease liquid separation tank are answered, the retracting device includes catalyst extraction tower, alkali cleaning
Tower, the second grease liquid separation tank and blowdown drum；The first esterification reactor and the series connection of the second esterifier, the first esterification
The gaseous phase outlet of device and the second esterifier connects dehydrating tower, and dehydrating tower connects the first grease liquid separation tank, the first grease liquid separation
Tower reflux pipeline is set between at the top of tank and dehydrating tower；The liquid-phase outlet of second esterifier be sequentially connected catalyst extraction tower,
Caustic wash tower and the second grease liquid separation tank, the first grease liquid separation tank water is mutually exported to be connected by pipeline with catalyst extraction tower, alkali cleaning
Alkali is set to add in mouth in the middle part of tower in tower wall, caustic wash tower top sets wash mill, and alkali adds in the alkali cleaning between mouth and wash mill
Sewage draining exit is set in tower tower wall, and sewage draining exit is connected by pipeline with blowdown drum.
The dehydrating tower bottom discharge mouth is connected by pipeline with first esterification reactor feed inlet, dehydration column overhead discharging
Mouth is connected by pipeline with the first grease liquid separation tank feed inlet, is set on dehydration column overhead discharge port to the first grease liquid separation tank pipeline
First Heat Exchanger is put, on the one hand the first grease liquid separation tank water mutually exports to be connected with catalyst extraction tower, another aspect and waste pipe
Line is connected, and the outlet of the first grease liquid separation tank oil phase is connected by lifting device with dehydrating tower overhead reflux entrance；Second esterification is anti-
Device bottom discharge mouth is answered to be connected by lifting device with catalyst extraction tower bottom feed inlet, the second esterifier bottom discharge
The second heat exchanger is set in mouth to catalyst extraction tower bottom feeding hole pipeline；Catalyst extraction top of tower discharge port and caustic wash tower
Bottom feed inlet is connected, and caustic wash tower top exit is connected with the second grease liquid separation tank entrance, and the second grease liquid separation tank water mutually exports
It is connected with alcohol purifying column, the outlet of the second grease liquid separation tank oil phase is connected with ester purifying column.
The blowdown drum is cylindrical can-like structure, and being vertically arranged first along blowdown drum short transverse on side wall transparent regards
Window, blowdown drum top set mixture inlet, and blowdown drum middle and upper part sets ester to recycle outlet, and the ester being connected with ester recycling outlet returns
Second transparent window on closed tube line is set, waste gas outlet is set at the top of blowdown drum, blowdown pot bottom sets discharge of wastewater mouth, waste water
Floss hole sets cross anti-swirl baffle.
The first esterification reactor is horizontal reactor, and the longitudinally disposed partition plate in reactor centre position is set on partition plate
Water conservancy diversion through hole, partition plate one side set feed inlet, and partition plate opposite side sets agitating device, and first esterification reactor inner wall sets heat preservation
Device.
Second esterifier is horizontal reactor, and the longitudinally disposed partition plate in reactor centre position is set on partition plate
Water conservancy diversion through hole, partition plate both sides are all provided with agitating device, and the second esterifier inner wall sets attemperator.
The first grease liquid separation tank is horizontal tank, internal setting interface liquid level gauge, intermediate longitudinally disposed overflow baffle,
Feed inlet is located at overflow baffle one side storage tank top, and water is mutually exported positioned at feed inlet side tank bottom, and oil phase outlet is located at overflow
Baffle opposite side tank bottom.
The second grease liquid separation tank is horizontal tank, and tank body lower part sets additional device for storing liquid, adds inside fluid reservoir
Interface liquid level gauge is set, additional fluid reservoir is connected with the second grease liquid separation tank, and additional fluid reservoir lower part sets water mutually to export,
Second grease liquid separation tank lower part sets oil phase to export.
Acrylic acid recycle feed pipeline is further included, the acrylic acid recycle feed pipeline goes out including sequentially connected mixture
Mouth, acrylic acid add in pipeline, the 3rd heat exchanger and mixture inlet, mixture outlet and are arranged on the charging of first esterification reactor
Mouth side, mixture inlet are arranged on the feed inlet side of first esterification reactor.
In the middle part of the dehydrating tower butanol is set to add in mouth.
The second grease liquid separation tank oil phase outlet is connected with the second heat exchanger cold fluid inlet, the second heat exchanger cold fluid
Outlet is connected with ester purifying column.
Utility model works principle：Each reactant is added in by first esterification reactor charge door, successively by the first ester
Change reactor and esterification, the water and a small amount of ester and unreacted butanol etc. of esterification generation occur for the second esterifier
Dehydration column overhead is distilled to, is then cooled down through First Heat Exchanger, into the first grease liquid separation tank, in the first grease liquid separation tank
Layering, then the water of lower floor is pumped from the first grease liquid separation tank tank bottom, and a part is as recovery system catalyst extraction tower
Extractant, remainder enter waste line；The oil phase components overflows such as alcohol, the ester of the first grease liquid separation tank at the middle and upper levels to overflow every
Then the opposite side of plate enters dehydrating tower and makees overhead reflux by oil phase outlet and pipeline.The butanol and third in esterifier
Olefine acid reaction generates 80% or so butyl ester also a small amount of acrylic acid butanol, catalyst p-methyl benzenesulfonic acid and a small amount of by-product simultaneously, greatly
Partial acrylic acid butanol, p-methyl benzenesulfonic acid and a small amount of by-product enters the catalyst of recovery system after the cooling of the second heat exchanger
Extraction tower.Water in first grease liquid separation tank mutually enters into catalyst extraction column overhead as extractant, after extraction, urges
Agent releases into catalytic agent reuse system benzene methanesulfonic acid from catalyst extraction tower bottom of towe, and catalyst extraction column overhead extraction raffinate is certainly
Caustic wash tower bottom of towe entrance is depressed into, rises into the material of caustic wash tower from bottom of towe to tower top, a small amount of catalysis is first neutralized with NaOH
Agent, acrylic acid, then after being washed with demineralized water, liquid of top of the tower is from the second grease liquid separation tank is depressed into, in the second grease liquid separation tank point
Layer, water phase are connected with alcohol purifying column, purify alcohols for depth, oil phase is connected with ester purifying column, by purifying to obtain product propylene
Acid butyl ester, the product for the saponification that caustic wash tower middle part generates enter blowdown drum, add in and be layered in blowdown drum, upper strata
Ester etc. enters ester recovery line, and the water of lower floor is mutually discharged into waste line.
Compared with prior art, advantageous effect possessed by the utility model is：
1st, the utility model is added reaction time of esterification, is improved esterification by the way of the series connection of two esterifiers
Reaction conversion ratio, caustic wash tower set sewage draining exit, are connected with blowdown drum, and the impurity discharging system that saponification is generated effectively is kept away
Exempted from impurity and entered follow-up system, improved the quality of butyl acrylate, at the same can accurate Propylene recovery acid butyl ester, improve product
Yield.
The 2nd, first transparent window on blowdown drum tank skin is set, the second transparent window in ester recovery line is set, is regarded by two
Window can clearly observe the delamination of impurity and product in blowdown drum, so as to more precise control and remove caustic wash tower
The impurity that middle saponification generates, meanwhile, discharge of wastewater mouth set anti-swirl baffle can to avoid during discharge of wastewater due to
Eddy current effect causes part propylene acid butyl ester to be discharged with waste water.
3rd, using horizontal reactor, centre sets partition plate, passes through partition plate for first esterification reactor and the second esterifier
On water conservancy diversion through hole can control the rate that reactant circulates, so as to control the time of esterification, improve esterification
Conversion ratio；In addition, set agitating device and attemperator that can ensure esterification in the first and second esterifiers
Thermally equivalent between temperature and reactant, so as to ensure the conversion ratio of esterification and reaction rate.
4th, the first grease liquid separation tank sets overflow baffle, and the second grease liquid separation tank sets additional fluid reservoir, combination interface liquid
The effect of position meter can be accurately controlled layering interfaces position, so as to ensure that water phase and oil phase liquid separation understand, avoid mixing mutually
It is miscellaneous, influence subsequently recycling or loss of product.
5th, first esterification reactor feed inlet side sets acrylic acid cyclically charging device so that acrylic acid adds in esterification
Temperature obtains before device is promoted to a certain extent, improves reaction conversion ratio and reaction efficiency.
6th, the outlet of the second grease liquid separation tank oil phase is connected by No. four pumps with the second heat exchanger cold fluid inlet, the second heat exchange
Device cold fluid outlet is connected with ester purifying column, makes full use of the second grease liquid separation tank oil phase part, saves condensation water consumption.
7th, butanol is set to add in mouth in the middle part of dehydrating tower, raw material butanol, which adds in dehydrating tower, can play the role of mass-and heat-transfer, and
The temperature of butanol is improved, improves the rate of esterification.
Description of the drawings
Fig. 1 reacts retracting device schematic diagram for embodiment 1.
Fig. 2 is 1 blowdown drum structure diagram of embodiment.
Fig. 3 reacts retracting device schematic diagram for embodiment 2.
Wherein：1st, first esterification reactor 2, the second esterifier 3, dehydrating tower 4, the first grease liquid separation tank
5th, catalyst extraction tower 6, caustic wash tower 7, the second grease liquid separation tank 8, blowdown drum 9, alkali add in mouth 10, wash mill
11st, sewage draining exit 12, First Heat Exchanger 13, the second heat exchanger 14, alcohol purifying column 15, ester purifying column 16, first are saturating
Photopic vision window 17, the second transparent window 18, discharge of wastewater mouth 19, cross anti-swirl baffle 20, partition plate 21, overflow
Baffle 22, additional fluid reservoir 23, mixture outlet 24, the 3rd heat exchanger 25, mixture inlet 26, acrylic acid add
Enter pipeline.
Specific embodiment
Fig. 1 ~ 2 are the most preferred embodiments of the utility model, and 1 ~ 3 pair of the utility model is done furtherly below in conjunction with the accompanying drawings
It is bright.
Embodiment 1
Referring to Figures 1 and 2, high conversion, high-quality butyl acrylate reaction retracting device include reaction unit and recycling
Device, the reaction unit include first esterification reactor 1, the second esterifier 2,3 and first grease liquid separation tank of dehydrating tower
4, the retracting device includes catalyst extraction tower 5, caustic wash tower 6, the second grease liquid separation tank 7 and blowdown drum 8；
1 and second esterifier 2 of first esterification reactor is arranged in series, 1 and second ester of first esterification reactor
Change 2 top discharge mouth of reactor by pipeline with 3 feed inlet of dehydrating tower to be connected, 3 bottom discharge mouth of dehydrating tower passes through pipeline and the
One esterifier, 1 feed inlet is connected, and 3 tower top discharge port of dehydrating tower is connected by pipeline with 4 feed inlet of the first grease liquid separation tank,
3 middle part connection butanol of dehydrating tower adds pipeline, and first is set on 3 tower top discharge port of dehydrating tower to 4 pipeline of the first grease liquid separation tank
Heat exchanger 12,4 water of the first grease liquid separation tank mutually export respectively with the extractant entrance of catalyst extraction tower 5 and waste line phase
Even, 4 mixture export of the first grease liquid separation tank is connected by pumping with 3 overhead reflux entrance of dehydrating tower；Second esterifier, 2 bottom
Portion's discharge port is connected by No. two pumps with 5 bottom feed inlet of catalyst extraction tower, and 2 bottom discharge mouth of the second esterifier is to urging
The second heat exchanger 13 is set in 5 bottom feeding hole pipeline of agent extraction tower；5 top discharge mouth of catalyst extraction tower and caustic wash tower 6
Bottom feed inlet is connected, and 6 middle part of caustic wash tower sets alkali to add in mouth 9, and alkali adds in 9 top of mouth and sets caustic wash tower wash mill 10, institute
Caustic wash tower wash mill 10 is stated as spray equipment, alkali, which adds in, sets sewage draining exit 11 between mouth 9 and wash mill 10, sewage draining exit 11 is set
Interface liquid level gauge is put, sewage draining exit 11 is connected by pipeline with blowdown drum 8, and the outlet of blowdown drum 8 is connected with ester recovery line；Caustic wash tower
6 top exits are connected with 7 entrance of the second grease liquid separation tank, and the second grease liquid separation tank water is mutually exported to be connected with alcohol purifying column 14, the
The outlet of two grease liquid separation tank oil phases is connected by pumping with 13 cold fluid inlet of the second heat exchanger, 13 cold fluid outlet of the second heat exchanger
It is connected with ester purifying column 15.
The first esterification reactor 1 be horizontal reactor, the longitudinally disposed partition plate 20 in reactor centre position, partition plate 20 1
Side sets feed inlet, and agitating device is set inside opposite side, and inner wall sets coil pipe attemperator, on partition plate 20 water conservancy diversion set to lead to
Hole；First esterification reactor 1 connects acrylic acid cyclically charging pipeline, and acrylic acid cyclically charging pipeline includes sequentially connected be located at
Mixture outlet 23, the acrylic acid of 1 feed inlet side of first esterification reactor add in pipeline 26, the 3rd heat exchanger 24 and positioned at first
The mixture inlet 25 of 1 feed inlet side of esterifier.
Second esterifier 2 be horizontal reactor, the longitudinally disposed partition plate 20 in reactor centre position, 20 liang of partition plate
Side is all provided with agitating device, and inner wall sets coil pipe attemperator, water conservancy diversion through hole is set on partition plate 20.
The blowdown drum 8 is cylindrical can-like structure, and being vertically arranged first along 8 short transverse of blowdown drum on side wall transparent regards
Window 16,8 top of blowdown drum set mixture inlet 25, and 8 middle and upper part of blowdown drum sets ester to recycle outlet, set in ester recovery line
Second transparent window 17,8 top of blowdown drum set waste gas outlet, and waste gas outlet is connected by pipeline with exhaust treatment system, is arranged
Dirty 8 bottom of tank sets discharge of wastewater mouth 18, and discharge of wastewater mouth 18 is connected by pipeline with wastewater disposal basin, and discharge of wastewater mouth 18 sets ten
Font anti-swirl baffle 19.
The first grease liquid separation tank 4 is horizontal tank, and inside sets interface liquid level gauge, intermediate longitudinally disposed overflow baffle
21, feed inlet is located at 21 one side storage tank top of overflow baffle, and water outlet is located at feed inlet side tank bottom, and mixture export is located at
21 opposite side tank bottom of overflow baffle.
Second grease liquid separation tank 7 is horizontal tank, and tank body lower part sets additional fluid reservoir 22, set inside additional fluid reservoir 22
Interface liquid level gauge is put, additional fluid reservoir 22 is connected with 7 tank body of the second grease liquid separation tank, and additional 22 lower part of fluid reservoir sets water mutually to go out
Mouthful, 7 tank body lower part of the second grease liquid separation tank sets oil phase to export.
The present embodiment operation principle：Butanol enters first esterification reactor 1 by dehydrating tower 3, and acrylic acid enters acrylic acid
Cyclically charging pipeline simultaneously enters first esterification reactor 1, catalyst by the heating of the 3rd heat exchanger 24 by mixture inlet 25
P-methyl benzenesulfonic acid is added in by 1 its top feed mouth of first esterification reactor, by 1 and second esterification of first esterification reactor
Esterification occurs for device 2, and reactant enters the another of partition plate 20 from the water conservancy diversion through hole on the partition plate 20 of first esterification reactor 1
Side, the time for being sized to control esterification of water conservancy diversion through hole, so as to improve the conversion ratio of esterification, the first esterification
Mixed liquor after the reaction of device 1 enters 20 one side of partition plate of the second esterifier 2 by pipeline, by the second esterifier 2
Partition plate 20 on water conservancy diversion through hole enter opposite side；The water and a small amount of ester and unreacted butanol etc. of esterification generation are distilled
To 3 tower top of dehydrating tower, then cool down through First Heat Exchanger 12, into the first grease liquid separation tank 4, in the first grease liquid separation tank 4
Layering, then the water of lower floor is pumped from 4 tank bottom of the first grease liquid separation tank, except the extraction for making recovery system catalyst extraction tower 5
Outside agent, remainder enters waste line；The oil phase components overflows such as alcohol, the ester of the first grease liquid separation tank 4 at the middle and upper levels to overflow every
Then the opposite side of plate 20 enters dehydrating tower 3 and makees overhead reflux by oil phase outlet and pipeline.In esterifier butanol and
Acrylic acid reaction 80% or so butyl ester of generation while also a small amount of acrylic acid butanol, catalyst p-methyl benzenesulfonic acid and a small amount of by-product,
Most acrylic acid butanol, p-methyl benzenesulfonic acid and a small amount of by-product the urging into recovery system after the cooling of the second heat exchanger 13
Agent extraction tower 5；Water in first grease liquid separation tank 4 mutually enters into 5 tower top of catalyst extraction tower as extractant, extraction knot
Shu Hou, catalyst release into catalytic agent reuse system, catalyst extraction tower 5 benzene methanesulfonic acid from 5 bottom of towe of catalyst extraction tower
Tower top extraction raffinate rises into the material of caustic wash tower 6 from bottom of towe to tower top, is first neutralized with NaOH from 6 bottom of towe entrance of caustic wash tower is depressed into
A small amount of catalyst, acrylic acid, then after being washed with demineralized water, liquid of top of the tower is from the second grease liquid separation tank 7 is depressed into, second
Grease liquid separation tank 7 is layered, and water phase is connected with alcohol purifying column 14, purifies alcohols for depth, oil phase is exchanged heat by pipeline and second
The cold fluid inlet of device 13 is connected, for cooling down to reaction product, then from the cold fluid outlet stream of the second heat exchanger 13
Go out, and pass through pipeline and be connected with ester purifying column 15, by purifying to obtain product propylene acid butyl ester；The saponification that 6 middle part of caustic wash tower generates
The product of reaction enters blowdown drum 8, adds in and is layered in blowdown drum 8, the ester on upper strata etc. enters ester recovery line, lower floor
Water is mutually discharged into waste line.
Embodiment 2
With reference to Fig. 3, acrylic acid and butanol are added in by 1 upper feed inlet of first esterification reactor, 7 oil of the second grease liquid separation tank
Mutually outlet is connected by pipeline with ester purifying column 15, and other parts are the same as embodiment 1.
Utility model works principle：Each reactant is added in by 1 charge door of first esterification reactor, successively by the first ester
Change 1 and second esterifier 2 of reactor and esterification, the water and a small amount of ester of esterification generation and unreacted butanol occurs
Etc. being distilled to 3 tower top of dehydrating tower, then cool down through First Heat Exchanger 12, into the first grease liquid separation tank 4, in the first grease point
Layering in flow container 4, then the water of lower floor is pumped from 4 tank bottom of the first grease liquid separation tank, except making recovery system catalyst extraction tower 5
Extractant outside, remainder enters waste line；The oil phase components overflows such as alcohol, the ester of the first grease liquid separation tank 4 at the middle and upper levels are extremely
Then the opposite side of weir divider 20 enters dehydrating tower 3 and makees overhead reflux by oil phase outlet and pipeline.In esterifier
Butanol and 80% or so butyl ester of acrylic acid reaction generation also a small amount of acrylic acid butanol, catalyst p-methyl benzenesulfonic acid and a small amount of simultaneously
By-product, most acrylic acid butanol, p-methyl benzenesulfonic acid and a small amount of by-product are after the cooling of the second heat exchanger 13 into recycling
The catalyst extraction tower 5 of system.Water in first grease liquid separation tank 4 mutually enters into 5 tower top of catalyst extraction tower as extraction
Agent, after extraction, catalyst releases into catalytic agent reuse system, catalysis benzene methanesulfonic acid from 5 bottom of towe of catalyst extraction tower
5 tower top extraction raffinate of agent extraction tower rises into the material of caustic wash tower 6 from bottom of towe to tower top, first uses from 6 bottom of towe entrance of caustic wash tower is depressed into
NaOH has neutralized a small amount of catalyst, acrylic acid, then after being washed with demineralized water, and liquid of top of the tower is from being depressed into the second grease liquid separation
Tank is layered in the second grease liquid separation tank, and water phase is connected with alcohol purifying column 14, and alcohols, oil phase and ester purifying column are purified for depth
15 are connected, and by purifying to obtain product propylene acid butyl ester, the product for the saponification that 6 middle part of caustic wash tower generates enters blowdown drum 8,
It adds in and is layered in blowdown drum 8, the ester on upper strata etc. enters ester recovery line, and the water of lower floor is mutually discharged into waste line.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and the remodeling that confrontation above example is made still fall within the guarantor of technical solutions of the utility model
Protect scope.
Claims (10)
1. a kind of high yield, high-quality butyl acrylate react retracting device, including reaction unit and retracting device, feature exists
In：The reaction unit includes first esterification reactor（1）, the second esterifier（2）, dehydrating tower（3）With the first grease point
Flow container（4）, the retracting device include catalyst extraction tower（5）, caustic wash tower（6）, the second grease liquid separation tank（7）And blowdown drum
（8）；The first esterification reactor（1）With the second esterifier（2）Series connection, first esterification reactor（1）With the second esterification
Reactor（2）Gaseous phase outlet connection dehydrating tower（3）, dehydrating tower（3）Connect the first grease liquid separation tank（4）, the first grease liquid separation
Tank（4）With dehydrating tower（3）Tower reflux pipeline is set between top；Second esterifier（2）Liquid-phase outlet be sequentially connected catalysis
Agent extraction tower（5）, caustic wash tower（6）With the second grease liquid separation tank（7）, the first grease liquid separation tank（4）Water mutually export by pipeline with
Catalyst extraction tower（5）It is connected, caustic wash tower（6）In the tower wall of middle part alkali is set to add in mouth（9）, caustic wash tower（6）Top sets washing
Device（10）, alkali addition mouth（9）And wash mill（10）Between caustic wash tower（6）Sewage draining exit is set in tower wall（11）, sewage draining exit
（11）Pass through pipeline and blowdown drum（8）It is connected.
2. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
Dehydrating tower（3）Bottom discharge mouth passes through pipeline and first esterification reactor（1）Feed inlet is connected, dehydrating tower（3）Tower top discharge port
Pass through pipeline and the first grease liquid separation tank（4）Feed inlet is connected, dehydrating tower（3）Tower top discharge port is to the first grease liquid separation tank（4）
First Heat Exchanger is set on pipeline（12）, the first grease liquid separation tank（4）Water mutually exports one side and catalyst extraction tower（5）Phase
Even, on the other hand it is connected with waste line, the first grease liquid separation tank（4）Oil phase outlet passes through lifting device and dehydrating tower（3）Top
Portion's reflux inlet is connected；Second esterifier（2）Bottom discharge mouth passes through lifting device and catalyst extraction tower（5）Bottom into
Material mouth is connected, the second esterifier（2）Bottom discharge mouth is to catalyst extraction tower（5）Second is set in the feeding hole pipeline of bottom
Heat exchanger（13）；Catalyst extraction tower（5）Top discharge mouth and caustic wash tower（6）Bottom feed inlet is connected, caustic wash tower（6）Top goes out
Mouth and the second grease liquid separation tank（7）Entrance is connected, the second grease liquid separation tank（7）Water mutually exports and alcohol purifying column（14）It is connected, the
Two grease liquid separation tanks（7）Oil phase exports and ester purifying column（15）It is connected.
3. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
Blowdown drum（8）For cylindrical can-like structure, along blowdown drum on side wall（8）Short transverse is vertically arranged the first transparent window（16）,
Blowdown drum（8）Top sets mixture inlet, blowdown drum（8）Middle and upper part sets ester to recycle outlet, is connected with ester recycling outlet
Second transparent window is set in ester recovery line（17）, blowdown drum（8）Top sets waste gas outlet, blowdown drum（8）Bottom is set
Discharge of wastewater mouth（18）, discharge of wastewater mouth（18）Cross anti-swirl baffle is set（19）.
4. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
First esterification reactor（1）For horizontal reactor, the longitudinally disposed partition plate in reactor centre position（20）, partition plate（20）Upper setting is led
Recirculation hole, partition plate（20）One side sets feed inlet, partition plate（20）Opposite side sets agitating device, first esterification reactor（1）It is interior
Wall sets attemperator.
5. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
Second esterifier（2）For horizontal reactor, the longitudinally disposed partition plate in reactor centre position（20）, partition plate（20）Upper setting is led
Recirculation hole, partition plate（20）Both sides are all provided with agitating device, the second esterifier（2）Inner wall sets attemperator.
6. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
First grease liquid separation tank（4）For horizontal tank, inside sets interface liquid level gauge, intermediate longitudinally disposed overflow baffle（21）, charging
Mouth is located at overflow baffle（21）One side storage tank top, water are mutually exported positioned at feed inlet side tank bottom, and oil phase outlet is located at overflow
Baffle（21）Opposite side tank bottom.
7. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
Second grease liquid separation tank（7）For horizontal tank, tank body lower part sets additional fluid reservoir（22）, add fluid reservoir（22）Inside is set
Interface liquid level gauge adds fluid reservoir（22）With the second grease liquid separation tank（7）Tank body connects, and adds fluid reservoir（22）Lower part sets water
It mutually exports, the second grease liquid separation tank（7）Tank body lower part sets oil phase to export.
8. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：Also wrap
Acrylic acid recycle feed pipeline is included, the acrylic acid recycle feed pipeline includes sequentially connected mixture outlet（23）, propylene
Acid adds in pipeline（26）, the 3rd heat exchanger（24）And mixture inlet（25）, mixture outlet（23）It is anti-to be arranged on the first esterification
Answer device（1）Feed inlet side, mixture inlet（25）It is arranged on first esterification reactor（1）Feed inlet side.
9. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
Dehydrating tower（3）Middle part sets butanol to add in mouth.
10. high yield according to claim 1, high-quality butyl acrylate react retracting device, it is characterised in that：It is described
Second grease liquid separation tank（7）Oil phase exports and the second heat exchanger（13）Cold fluid inlet is connected, the second heat exchanger（13）Cold fluid
Outlet and ester purifying column（15）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721350169.5U CN207391315U (en) | 2017-10-19 | 2017-10-19 | A kind of high yield, high-quality butyl acrylate reaction retracting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721350169.5U CN207391315U (en) | 2017-10-19 | 2017-10-19 | A kind of high yield, high-quality butyl acrylate reaction retracting device |
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| CN207391315U true CN207391315U (en) | 2018-05-22 |
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| CN201721350169.5U Active CN207391315U (en) | 2017-10-19 | 2017-10-19 | A kind of high yield, high-quality butyl acrylate reaction retracting device |
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| CN (1) | CN207391315U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879471A (en) * | 2018-12-22 | 2019-06-14 | 江门谦信化工发展有限公司 | In a kind of n-butyl acrylate and COD treatment process drops in waste water drop COD processing unit and waste water |
| CN110683950A (en) * | 2019-10-21 | 2020-01-14 | 江苏利田科技股份有限公司 | Method and device for recycling UV (ultraviolet) photocuring monomer catalyst, polymerization inhibitor, reducing agent and decoloring agent |
| CN112955427A (en) * | 2019-04-04 | 2021-06-11 | 株式会社Lg化学 | System for continuous purification of esterification reaction products |
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2017
- 2017-10-19 CN CN201721350169.5U patent/CN207391315U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879471A (en) * | 2018-12-22 | 2019-06-14 | 江门谦信化工发展有限公司 | In a kind of n-butyl acrylate and COD treatment process drops in waste water drop COD processing unit and waste water |
| CN109879471B (en) * | 2018-12-22 | 2021-12-14 | 谦信化工集团有限公司 | COD (chemical oxygen demand) reduction treatment device and COD reduction treatment process for n-butyl acrylate neutralization wastewater |
| CN112955427A (en) * | 2019-04-04 | 2021-06-11 | 株式会社Lg化学 | System for continuous purification of esterification reaction products |
| CN112955427B (en) * | 2019-04-04 | 2024-04-19 | 株式会社Lg化学 | System for continuous purification of esterification reaction products |
| CN110683950A (en) * | 2019-10-21 | 2020-01-14 | 江苏利田科技股份有限公司 | Method and device for recycling UV (ultraviolet) photocuring monomer catalyst, polymerization inhibitor, reducing agent and decoloring agent |
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