CN105585465B - A kind of 3,3 dimethyl butyraldehyde preparation technologies and preparation facilities - Google Patents
A kind of 3,3 dimethyl butyraldehyde preparation technologies and preparation facilities Download PDFInfo
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- CN105585465B CN105585465B CN201511012678.2A CN201511012678A CN105585465B CN 105585465 B CN105585465 B CN 105585465B CN 201511012678 A CN201511012678 A CN 201511012678A CN 105585465 B CN105585465 B CN 105585465B
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/42—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
- C07C67/293—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
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Abstract
The present invention proposes a kind of preparation technology and preparation facilities of 3,3 dimethyl butyraldehydes, and the preparation technology comprises the following steps：Make tert-butyl chloride and vinylacetate dichloromethane as solvent, alchlor as catalyst under conditions of react, obtain the first reaction product containing the dimethyl butyrate yl acetate of 1 chlorine 3,3；The zone of heat liberation of plate type heat exchanger is inputted after first reaction product is mixed with water, cooling agent is inputted to the cold fluid pass of plate type heat exchanger, first reaction product and the cooling agent is set to be exchanged heat in plate type heat exchanger in the way of the first heat exchange process is following current, the second heat exchange process is adverse current, so that first reaction product carries out continuous hydrolysis reaction, obtain the second reaction product containing 3,3 dimethyl butyraldehydes；Rectifying separation is carried out to second reaction product to obtain the dimethyl butyraldehyde of target product 3,3.Preparation technology according to embodiments of the present invention, it is possible to achieve continuous production, improve production efficiency.
Description
Technical field
The present invention relates to chemical production technical field, more particularly to one kind 3,3- dimethyl butyraldehydes preparation technology and preparation
Device.
Background technology
3,3- dimethyl butyraldehydes are a kind of important industrial chemicals, are the main synthesis originals of medicine and food additives neotame
One of material.
In existing 3,3- dimethyl butyraldehydes synthesis technique, hydrolyzable moiety is completed in enamel reaction still.Lot material
After putting into enamel reaction still, add a large amount of ice cubes or water and reacted under low temperature, simultaneous reactions kettle interlayer leads to brine ice and entered
Row cooling.Because the reaction is more rapid, can react and finish within the 2-15 seconds, traditional hydrolysis process because can not Quick uniform mix
Two kinds of materials are closed, the too high problem of local reaction temperature can be produced；To ensure that reaction solution hydrolysis is abundant, often added in traditional handicraft
A large amount of ice cubes or water, produce substantial amounts of waste water after the completion of hydrolysis.Tradition utilizes ice block cooling technique, need to be carried out with a large amount of manpowers
Trash ice, ice is thrown, and need to be with icebox come stored ice.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose one kind 3,3- dimethyl butyraldehyde preparation technologies, solves original 3,3-
Dimethyl butyraldehyde hydrolysis process is unable to continuous production using reactor, takes artificial disadvantage more, hydrolysis is uneven and big wastewater flow rate
End, production efficiency is improved while reducing labour cost.
Another object of the present invention is to propose a kind of 3,3- dimethyl butyraldehydes preparation facilities.
The preparation technology of 3,3- dimethyl butyraldehydes according to embodiments of the present invention, comprises the following steps：Step S1：Make chloro
Tertiary butane and vinylacetate using dichloromethane as solvent, using alchlor as catalyst under conditions of react,
Obtain the first reaction product containing the chloro- 3,3- dimethyl butyrates yl acetates of 1-；Step S2：By first reaction product and water
The zone of heat liberation of plate type heat exchanger is inputted after mixing, cooling agent is inputted to the cold fluid pass of plate type heat exchanger, makes described the
One reaction product and the cooling agent are following current according to the first heat exchange process in plate type heat exchanger, the second heat exchange process is adverse current
Mode exchanged heat so that first reaction product carry out continuous hydrolysis reaction, obtain containing 3,3- dimethyl butyraldehydes
Second reaction product；Step S3：Rectifying separation is carried out to second reaction product to obtain 3,3- dimethyl butyraldehydes.
It is according to embodiments of the present invention, after water and the first reactant are mixed, into plate type heat exchanger in be hydrolyzed it is anti-
Should, the cold fluid pass of plate type heat exchanger is passed through cooling agent and cooled, and solves original 3,3- dimethyl butyraldehyde hydrolysis process and adopts
Continuous production is unable to reactor, takes the drawbacks of artificial more, the uneven and wastewater flow rate of hydrolysis is big, while reducing labour cost
Improve production efficiency.
In addition, the preparation technology of 3,3- dimethyl butyraldehydes according to the above embodiment of the present invention can also have following add
Technical characteristic：
According to the example of the present invention, in step S1, reaction temperature is -30 DEG C~10 DEG C.
According to the example of the present invention, in step S2, the flow-rate ratio of first reaction product and the water is 1：（1
~3）；Temperature of the cooling agent when inputting the cold fluid pass of the plate type heat exchanger is -20 DEG C~30 DEG C, described second
Temperature of the reaction product when exporting the zone of heat liberation of the plate type heat exchanger is 5 DEG C~40 DEG C.
According to the example of the present invention, second reaction product is exporting the zone of heat liberation of the plate type heat exchanger
When temperature be 25 DEG C~40 DEG C.
According to the example of the present invention, the cooling agent includes brine ice, recirculated water or ethylene glycol solution.
According to the example of the present invention, the preparation technology is additionally included in before step S2, and the described first reaction is produced
Thing inputs the step of the first storage tank, and before step S3, will second reaction product the second storage tank of input the step of.
The preparation facilities of 3,3- dimethyl butyraldehydes according to embodiments of the present invention, including：Reactor；Water pot；Blender, institute
The input for stating blender is connected with the output end of the reactor and the output end of the water pot respectively；Plate type heat exchanger, institute
The input for stating the zone of heat liberation of plate type heat exchanger is connected with the output end of the blender；Rectifying column, the rectifying column
Input is connected with the output end of the zone of heat liberation of the plate type heat exchanger；Cooling agent storage tank, the cooling agent storage tank it is defeated
Go out end with the input of the cold fluid pass of the plate type heat exchanger to be connected, the output of the cold fluid pass of the plate type heat exchanger
End is connected with the input of the cooling agent storage tank；Wherein, the plate type heat exchanger includes first pass and second procedure, described
In first pass, the flow direction of hot fluid in the zone of heat liberation flows to phase with the cold fluid in the cold fluid pass
Together, in the second procedure, flow direction and the cold fluid in the cold fluid pass of the hot fluid in the zone of heat liberation
Flow direction is opposite.
According to the example of the present invention, the preparation facilities of described 3,3- dimethyl butyraldehydes also includes the first storage tank and the
Two storage tanks, the input of first storage tank are connected with the output end of the reactor, the output end of first storage tank and institute
The input for stating blender is connected；The output end of the input of second storage tank and the zone of heat liberation of the plate type heat exchanger
It is connected, the output end of second storage tank is connected with the input of the rectifying column.
According to the example of the present invention, the preparation facilities of described 3,3- dimethyl butyraldehydes also include the first feed pump,
First flowmeter, the first regulating valve, the second feed pump, second flowmeter, the second regulating valve, the 3rd feed pump, the 3rd flowmeter,
3rd regulating valve and thermometer, first feed pump, the first flowmeter and first regulating valve are sequentially arranged at described
Between the input of the output end of first storage tank and the blender；Second feed pump, the second flowmeter and described
Second regulating valve is sequentially arranged between the output end of the water pot and the input of the blender；3rd feed pump, institute
State the 3rd flowmeter and the 3rd regulating valve is sequentially arranged at the output end of the cooling agent storage tank and the plate type heat exchanger
Between the input of cold fluid pass；The thermometer is located in the output end of the zone of heat liberation of the plate type heat exchanger；Institute
It is titanium alloy blender to state blender.
According to the example of the present invention, the plate type heat exchanger is titanium alloy plate type heat exchanger, the spray of the blender
The input of the zone of heat liberation of mouth and the plate type heat exchanger is at a distance of 2cm~10cm.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the flow chart of the preparation technology of 3,3- dimethyl butyraldehydes according to an embodiment of the invention；
Fig. 2 is the schematic diagram of the preparation facilities of 3,3- dimethyl butyraldehydes according to an embodiment of the invention；
Fig. 3 is the signal of the plate type heat exchanger of the preparation facilities of 3,3- dimethyl butyraldehydes according to an embodiment of the invention
Figure.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the preparation technology and system of 3,3- dimethyl butyraldehydes according to embodiments of the present invention are described in detail
Standby device.
As shown in Figure 1 to Figure 3, the preparation technology of 3,3- dimethyl butyraldehydes according to embodiments of the present invention, including following step
Suddenly：
Step S1：In reactor 100, using dichloromethane as solvent, using alchlor as catalyst, make chloro uncle
Butane and vinylacetate react, and obtain the first reaction product containing chloro- 3, the 3- dimethyl butyrates yl acetates of 1-.
Advantageously, in step S1, reaction temperature can be controlled at -30 DEG C~10 DEG C.
Explanation is needed exist for, step S1 may be referred to Chinese patent CN102295541A and Chinese patent
CN104130115A。
Step S2：After first reaction product is mixed with water input plate type heat exchanger 400 zone of heat liberation 411,421,
The cooling agent of brine ice, recirculated water or ethylene glycol solution etc. is inputted to the cold fluid pass 412 of plate type heat exchanger 400,
422.It is following current, the second heat exchange stream according to the first heat exchange process in plate type heat exchanger 400 to make the first reaction product and cooling agent
Journey is exchanged heat for the mode of adverse current, so that the first reaction product carries out continuous hydrolysis reaction, is obtained containing 3,3- dimethyl butyrates
Second reaction product of aldehyde.
Advantageously, in step S2, the flow-ratio control of the first reaction product and water is 1：（1~3）.
Temperature control of the cooling agent when inputting cold fluid pass 412,422 of plate type heat exchanger 400 is -20 DEG C~30
℃。
Second reaction product（That is hydrolysate）Temperature when exporting zone of heat liberation 411,421 of plate type heat exchanger 400
Degree control is at 5 DEG C~40 DEG C.Further, zone of heat liberation 411,421 of second reaction product in output plate type heat exchanger 400
When temperature control at 25 DEG C~40 DEG C.
Step S3：Rectifying separation is carried out to second reaction product to obtain target product 3,3- dimethyl butyraldehydes.
Step S3 rectifying separation may be referred to Chinese patent CN102295541A and Chinese patent CN104130115A.Root
According to the preparation technology of 3, the 3- dimethyl butyraldehydes of the embodiment of the present invention, after water and the first reactant are mixed, into plate-type heat-exchange
Reaction is hydrolyzed in device, the cold fluid pass of plate type heat exchanger is passed through cooling agent and cooled, and solves original 3,3- dimethyl
Butyraldehyde hydrolysis process is unable to continuous production using reactor, takes the drawbacks of artificial more, the uneven and wastewater flow rate of hydrolysis is big, reduces
Production efficiency is improved while labour cost.
Because it can be good at controlling reaction temperature as the carrier of hydrolysis by the use of plate type heat exchanger.Entering
Before plate type heat exchanger, the first reaction product is sufficiently mixed with water using blender, substantially reduces the addition of water.First reaction
The mixture of product and water shows great turbulence effects in plate type heat exchanger, further enhancing the first reaction product with
The mixed effect of water.Using the design of adverse current after high heat exchange efficiency and cold fluid and hot fluid the elder generation following current of plate type heat exchanger, reaction produces
Heat taken away rapidly.The preparation technology of 3,3- dimethyl butyraldehydes according to embodiments of the present invention, it is easy to accomplish automation, section
Human cost is saved.It is demonstrated experimentally that the preparation technology of 3,3- dimethyl butyraldehydes according to embodiments of the present invention can improve 10% production
Product yield, reduce by 2/3 wastewater flow rate.
According to the example of the present invention, the preparation technology is additionally included in before step S2, and the first reaction product is defeated
The step of entering the first storage tank 700, and before step S3, the step of the second reaction product is inputted into the second storage tank 800.By
This, can preferably carry out continuous production, and production efficiency is higher.
As shown in Figures 2 and 3（Arrow in Fig. 2 and Fig. 3 represents the flow direction of fluid）, according to embodiments of the present invention 3,3-
The preparation facilities of dimethyl butyraldehyde, including：Reactor 100, water pot 200, blender 300, plate type heat exchanger 400, rectifying column
500, cooling agent storage tank 600.
Specifically, the input of blender 300 respectively with the output end of reactor 100 and the output end phase of water pot 200
Even.Blender 300 can be titanium alloy blender.
The input of the zone of heat liberation 411,421 of plate type heat exchanger 400 is connected with the output end of blender 300.Favorably
The input of the zone of heat liberation of ground, the nozzle of the blender and the plate type heat exchanger is at a distance of 2cm~10cm.Thus, may be used
It is hot produced by simultaneous reactions between ensureing that the first reaction product can be evenly distributed on each plate of plate type heat exchanger after being mixed with water
Amount energy plate type heat exchanger 400 is taken away in time.Plate type heat exchanger 400 can be titanium alloy sheet formula heat exchanger.
The output end of the input of rectifying column 500 and the zone of heat liberation 411,421 of plate type heat exchanger 400 is connected, and is used for
Rectifying separation is carried out to the second reaction product, to obtain target product 3,3- dimethyl butyraldehydes.Equipped with brine ice, recirculated water or second
The output end of the cooling agent storage tank 600 of glycol solution and the input phase of the cold fluid pass 412,422 of plate type heat exchanger 400
Even, the output end of the cold fluid pass 412,422 of plate type heat exchanger 400 is connected with the input of cooling agent storage tank 600.
Wherein, as shown in figure 3, plate type heat exchanger 400 includes first pass 410 and second procedure 420.
In first pass 410, flow direction and the cold fluid in cold fluid pass 412 of the hot fluid in zone of heat liberation 411
Flow to it is identical.That is, in first pass 410, hot fluid carries out downstream heat transfer with cold fluid.
In second procedure 420, flow direction and the cold fluid in cold fluid pass 422 of the hot fluid in zone of heat liberation 412
Flow direction it is opposite.That is, in second procedure 420, hot fluid carries out countercurrent flow with cold fluid.
Thus, cold fluid and hot fluid countercurrently, both ensure that the maximum temperature difference of initial reaction stage in first pass following current, second procedure
Reaction heat has been taken away in time, has also improved the utilization rate of cold fluid cold.
Advantageously, first is also included according to the example of the present invention, the preparation facilities of described 3,3- dimethyl butyraldehydes
The storage tank 800 of storage tank 700 and second.
The input of first storage tank 700 is connected with the output end of reactor 100, and the output end of the first storage tank 700 is with mixing
The input of device 400 is connected.
The output end of the input of second storage tank 800 and the zone of heat liberation 411,421 of plate type heat exchanger 400 is connected, the
The output end of two storage tanks 800 is connected with the input of rectifying column 500.
Further, the preparation facilities of described 3,3- dimethyl butyraldehydes also includes the first feed pump 101, first flowmeter
102nd, the first regulating valve 103, the second feed pump 201, second flowmeter 202, the second regulating valve 203, the 3rd feed pump 601,
Three flowmeters 602, the 3rd regulating valve 603 and thermometer 401.
First feed pump 101, the regulating valve 103 of first flowmeter 102 and first are sequentially arranged at the output end of the first storage tank 700
Between the input of blender 400.
Second feed pump 201, the regulating valve 203 of second flowmeter 202 and second are sequentially arranged at the output end of water pot 200 with mixing
Between the input of clutch 400.
3rd feed pump 601, the 3rd flowmeter 602 and the 3rd regulating valve 603 are sequentially arranged at the output of cooling agent storage tank 600
Between end and the input of the cold fluid pass 412,422 of plate type heat exchanger 400.
Thermometer 401 is located in the output end of zone of heat liberation 411,421 of plate type heat exchanger 400.
Thus, it is possible to such as flow, temperature in the preparation technology of 3,3- dimethyl butyraldehydes according to embodiments of the present invention
The technological parameters such as degree carry out Automated condtrol.
According to 3, the 3- dimethyl butyraldehydes preparation technology and preparation facilities of inventive embodiments, water is used as by the use of plate type heat exchanger
Solve reaction carriers, can be good at controlling reaction temperature, before plate type heat exchanger is entered using blender by the first reaction product with
Water is sufficiently mixed, and substantially reduces the addition of water；The mixture of first reaction product and water shows pole in plate type heat exchanger
Big turbulence effects, it further enhancing the mixed effect of the first reaction product and water.Utilize the high heat exchange effect of plate type heat exchanger
The design of adverse current after rate and the following current of cold fluid and hot fluid elder generation, heat is taken away rapidly caused by reaction；It is easy to automate, save
Human cost.It is demonstrated experimentally that 10% product yield can be improved, 2/3 wastewater flow rate is reduced.
In other words, the first reaction product and water are pumped into blender respectively using pump, the feed liquid for mixing completion enters plate
Reaction is hydrolyzed in formula heat exchanger.First reaction product and the ratio of water can be come from by the linkage of flowmeter and regulating valve
Dynamic control.Cooling medium in plate type heat exchanger uses brine ice or recirculated water, the flow and reaction life of brine ice or recirculated water
Into the temperature linkage of thing, cold fluid and hot fluid uses the form of adverse current after first following current, controls the temperature of product at 10 DEG C~40 DEG C.
Due to entering plate after being mixed using pump and the reaction product of governor valve control first and the ratio of water and by blender
Reaction is hydrolyzed in formula heat exchanger, substantially increases the uniformity of mixing, makes reaction more abundant, it is often more important that heat exchange is fast
Speed.Cold fluid and hot fluid countercurrently, both ensure that the timely band of maximum temperature difference of initial reaction stage in first flow following current, second flow
Reaction heat has been walked, has also improved the utilization rate of cold fluid cold.Traditional handicraft is compared, and the yield of 3,3- dimethyl butyraldehydes improves
More than 10%.Because well mixed sex chromosome mosaicism is addressed, wastewater flow rate substantially reduces, and only needs the 1/3 of traditional amount of water, waste water
Problem is greatly improved.Reach more than 99.5% by the purity of isolated 3, the 3- dimethyl butyraldehydes of rectifying, yield
More than 86%.
In the description of the invention, it is to be understood that term " first ", " second " etc. are only used for describing purpose, without
It is understood that to indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second " etc..In description of the invention
In, " multiple " are meant that two or more, unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. one kind 3, the preparation technology of 3- dimethyl butyraldehydes, it is characterised in that comprise the following steps：
Step S1：Make tert-butyl chloride and vinylacetate in dichloromethane as the bar of solvent, alchlor as catalyst
Reacted under part, obtain the first reaction product containing chloro- 3, the 3- dimethyl butyrates yl acetates of 1-；
Step S2：The zone of heat liberation, cooling agent is defeated of plate type heat exchanger is inputted after first reaction product is mixed with water
Enter the cold fluid pass of plate type heat exchanger, make first reaction product and the cooling agent in plate type heat exchanger according to first
The mode that heat exchange process is following current, the second heat exchange process is adverse current is exchanged heat, so that first reaction product is carried out continuously
Hydrolysis, obtain the second reaction product containing 3,3- dimethyl butyraldehydes；
Step S3：Rectifying separation is carried out to second reaction product to obtain target product 3,3- dimethyl butyraldehydes.
2. preparation technology according to claim 1, it is characterised in that in step S1, reaction temperature is -30 DEG C~10 DEG C.
3. preparation technology according to claim 1, it is characterised in that in step S2, first reaction product with it is described
The flow-rate ratio of water is 1：（1~3）；Temperature of the cooling agent when inputting the cold fluid pass of the plate type heat exchanger is -20
DEG C~30 DEG C, temperature of second reaction product when exporting the zone of heat liberation of the plate type heat exchanger is 5 DEG C~40 DEG C.
4. preparation technology according to claim 3, it is characterised in that second reaction product is exporting described board-like change
The temperature during zone of heat liberation of hot device is 25 DEG C~40 DEG C.
5. preparation technology according to claim 1, it is characterised in that the cooling agent includes brine ice, recirculated water or second
Glycol solution.
6. according to the preparation technology any one of claim 1-5, it is characterised in that it is additionally included in before step S2, will
First reaction product inputs the step of the first storage tank, and before step S3, and second reaction product is inputted into the
The step of two storage tanks.
7. one kind 3, the preparation facilities of 3- dimethyl butyraldehydes, it is characterised in that including：
Reactor；
Water pot；
Blender, the input of the blender are connected with the output end of the reactor and the output end of the water pot respectively；
Plate type heat exchanger, the input of the zone of heat liberation of the plate type heat exchanger are connected with the output end of the blender；
Rectifying column, the input of the rectifying column are connected with the output end of the zone of heat liberation of the plate type heat exchanger；
Cooling agent storage tank, the output end of the cooling agent storage tank and the input phase of the cold fluid pass of the plate type heat exchanger
Even, the output end of the cold fluid pass of the plate type heat exchanger is connected with the input of the cooling agent storage tank；
Wherein, the plate type heat exchanger includes first pass and second procedure, in the first pass, in the zone of heat liberation
Hot fluid flow direction it is identical with flowing to for the cold fluid in the cold fluid pass, in the second procedure, the hot fluid
The flow direction of hot fluid in passage is opposite with the flow direction of the cold fluid in the cold fluid pass.
8. preparation facilities according to claim 7, it is characterised in that also including the first storage tank and the second storage tank, described
The input of one storage tank is connected with the output end of the reactor, the output end of first storage tank and the input of the blender
End is connected；The input of second storage tank is connected with the output end of the zone of heat liberation of the plate type heat exchanger, and described second
The output end of storage tank is connected with the input of the rectifying column.
9. preparation facilities according to claim 8, it is characterised in that also including the first feed pump, first flowmeter, first
Regulating valve, the second feed pump, second flowmeter, the second regulating valve, the 3rd feed pump, the 3rd flowmeter, the 3rd regulating valve and temperature
Degree meter, first feed pump, the first flowmeter and first regulating valve are sequentially arranged at the output of first storage tank
Between end and the input of the blender；Second feed pump, the second flowmeter and second regulating valve are successively
It is located between the output end of the water pot and the input of the blender；3rd feed pump, the 3rd flowmeter and
3rd regulating valve is sequentially arranged at the defeated of the output end of the cooling agent storage tank and the cold fluid pass of the plate type heat exchanger
Enter between end；The thermometer is located in the output end of the zone of heat liberation of the plate type heat exchanger.
10. according to the preparation facilities any one of claim 7-9, it is characterised in that the blender mixes for titanium alloy
Clutch；The plate type heat exchanger is the hot-fluid of titanium alloy plate type heat exchanger, the nozzle of the blender and the plate type heat exchanger
The input of body passage is at a distance of 2cm~10cm.
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| CN109438200A (en) * | 2018-10-17 | 2019-03-08 | 山东奔月生物科技有限公司 | Metallic catalyst prepares the synthesis technology of 3,3- dimethyl butyraldehyde |
| CN110283057A (en) * | 2019-06-28 | 2019-09-27 | 山东奔月生物科技股份有限公司 | Microchannel plate answers method to prepare the synthesis technology of 3,3- dimethyl butyraldehyde |
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| US8288138B2 (en) * | 2008-07-30 | 2012-10-16 | Neatech, Llc | Conversion of biomass into ethanol |
| CN102295541B (en) * | 2011-08-16 | 2013-04-17 | 济南诚汇双达化工有限公司 | Preparation method of 3,3-dimethyl butyraldehyde |
| CN102911017B (en) * | 2012-11-16 | 2014-12-03 | 河南大学 | New method and device for preparing cyclohexanol by catalyzing direct hydration of cyclohexene with ionic liquid |
| CN104130115A (en) * | 2014-08-20 | 2014-11-05 | 山东奔月生物科技有限公司 | Method for preparing 3,3-dimethyl butyraldehyde |
| CN104478681B (en) * | 2014-12-31 | 2016-03-16 | 济南诚汇双达化工有限公司 | The method for hydrolysis of chloro-3, the 3-dimethyl butyrate yl acetates of a kind of 1- |
| CN104748591A (en) * | 2015-04-10 | 2015-07-01 | 甘肃蓝科石化高新装备股份有限公司 | Welded plate frame type heat exchanger |
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