CN108786668A - A kind of multi-functional synthesis reaction vessel and synthetic method of acetylbutyrylcellulose - Google Patents
A kind of multi-functional synthesis reaction vessel and synthetic method of acetylbutyrylcellulose Download PDFInfo
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- CN108786668A CN108786668A CN201810520771.1A CN201810520771A CN108786668A CN 108786668 A CN108786668 A CN 108786668A CN 201810520771 A CN201810520771 A CN 201810520771A CN 108786668 A CN108786668 A CN 108786668A
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- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 27
- 238000010189 synthetic method Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 210000003298 dental enamel Anatomy 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000004913 activation Effects 0.000 abstract description 14
- 230000001376 precipitating effect Effects 0.000 abstract description 6
- 238000009835 boiling Methods 0.000 abstract description 4
- 230000003213 activating effect Effects 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000001994 activation Methods 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 8
- 239000011343 solid material Substances 0.000 description 6
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004445 quantitative analysis Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- UGZICOVULPINFH-UHFFFAOYSA-N acetic acid;butanoic acid Chemical compound CC(O)=O.CCCC(O)=O UGZICOVULPINFH-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- YHASWHZGWUONAO-UHFFFAOYSA-N butanoyl butanoate Chemical class CCCC(=O)OC(=O)CCC YHASWHZGWUONAO-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/087—Heating or cooling the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00176—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles outside the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00858—Moving elements
- B01J2208/00867—Moving elements inside the bed, e.g. rotary mixer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses the multi-functional synthesis reaction vessel and synthetic method of a kind of acetylbutyrylcellulose, this multi-functional synthesis reaction vessel includes reactor main body, the agitating device being located in reactor main body, the filter device being located in reactor main body, the liquid distribution device being located in reactor main body and the circulating pump being connect with reactor main body.A kind of method synthesizing acetylbutyrylcellulose using the reaction kettle is also disclosed that simultaneously.Advantageous effect：Using the reaction kettle synthesis acetylbutyrylcellulose of the present invention, it can be achieved that efficiently activation and reaction；Being carried out continuously for activation and reaction can be realized in the case where not opening reactor main body, avoid the pollution for the volatile organic matter that the separation of activating solution is brought；By being transformed to pipeline, can carry out the precipitating of product, boiling, the sequence of operations such as be filtered, washed, it can be achieved that a tractor serves several purposes purpose.The present invention relates to field of chemical equipment.
Description
Technical field
The present invention relates to field of chemical equipment, more particularly to the multi-functional synthesis reaction vessel of a kind of acetylbutyrylcellulose.
Background technology
Acetylbutyrylcellulose (cellulose acetate butyrate, abbreviation CAB) is that one kind is widely used in applying
To expect the additive of industry, compares traditional cellulose acetate, soluble range is wider, is not only dissolved in intensive polar solvent,
The acetylbutyrylcellulose of high butyl ester content even dissolves in alcohols solvent.Therefore, it is widely used in woodwork coating, plastics apply
Material etc. applies in item, has the function of to improve coating mobility, levelability, outdoor durable, pigment directionality and flexibility etc..
The synthetic route of acetylbutyrylcellulose is as follows：Cellulose is activated under certain condition first, to destroy it
Hydrogen bond；Esterifying agent is added and catalyst carries out esterification；Precipitating agent is added after reaction, precipitating is carried out to product；Product is by washing
It the unit operations such as washs and dries and obtain final products.
In the prior art, Chinese invention patent " a kind of the acetylbutyrylcellulose mixed ester and its system of high bytyry content
Preparation Method (application publication number：CN 104371026A, Shen Qing Publication date：2015.02.25) ", use temperature for 25~30 DEG C
Under the conditions of cellulose is activated, soak time be 12~15h；" the heterogeneous synthetic method of acetylbutyrylcellulose is (yellow for document
The coatings industries 38.6 (2008) such as coloured silk knot:40-42.) ", use temperature under the conditions of 95 DEG C to cellulose activation, soak time
Only 2h.Comparison can effectively shorten soak time it is found that improving activation temperature by analysis, improve combined coefficient.Existing skill
The defect of art is:Reaction raw materials cellulose fibre is longer, is difficult to stir in activation process, high-temperature activation is due to uneven heating
Even, it is uneven to easily lead to priming reaction, and product structure is caused to have differences.
Invention content
Technical problem to be solved by the invention is to provide a kind of multi-functional synthesis reaction vessel of acetylbutyrylcellulose and
Synthetic method, its priming reaction speed is fast during synthesizing acetylbutyrylcellulose, efficient and uniformity coefficient is high, can be improved
The quality of acetylbutyrylcellulose product.
Used technical solution to solve above-mentioned technical problem：A kind of multi-functional synthetic reaction of acetylbutyrylcellulose
Kettle, including reactor main body, be located in reactor main body heating device, be located in reactor main body agitating device, be located at
Filter device, the liquid distribution device being located in reactor main body in reactor main body and the cycle being connect with reactor main body
Pump, circulating pump include inlet and liquid outlet, and the inlet of circulating pump and the bottom of reactor main body connect, and circulating pump goes out liquid
Mouth is connect with the top of reactor main body, and the liquid outlet connection of liquid distribution device and circulating pump, filter device is located at stirring dress
It sets between the inlet of circulating pump, agitating device is located between liquid distribution device and filter device.
As an improvement, agitating device is agitating paddle, agitating paddle includes agitating shaft and the blade that is located on agitating shaft, and blade is set
Between liquid distribution device and filter device, the top of reactor main body is equipped with the motor of driving agitating paddle.
As an improvement, filter device is strainer, the distance between the top of strainer and the bottom of blade are set as a, 10cm≤a
≤20cm。
As an improvement, reactor main body is equipped with feeding port, feeding port is located between liquid distribution device and blade.
As an improvement, the center of liquid distribution device is equipped with channel, agitating shaft passes through channel and is connect with blade.
As an improvement, the section of the inner cavity of reactor main body is circle, blade is located at the center of the inner cavity of reactor main body.
As an improvement, reactor main body is enamel material, circulating pump is corrosion resistant type centrifugal pump.
As an improvement, heating device is heating jacket, heating jacket is set in the outside of reactor main body.
As an improvement, heating jacket includes heat conducting oil inlet and conduction oil outlet, heat conducting oil inlet is located at heating jacket
Lower part, conduction oil outlet are located at the top of heating jacket.
A kind of synthetic method of acetylbutyrylcellulose is using above-mentioned multi-functional synthesis reaction vessel synthesis acetate butyrate
Cellulose.
Advantageous effect：
(1) the multi-functional synthesis reaction vessel of acetylbutyrylcellulose proposed by the present invention has two sets of Matter Transfer schemes.
When in activation stage, solid material is difficult to stir, and selecting response uses centrifugal pump to carry out outer loop to reach the mixed of material
Close purpose.When the reaction later stage, material viscosity reduces, and optional agitating paddle is stirred, it can be achieved that efficiently activation and reaction.
(2) the multi-functional synthesis reaction vessel of acetylbutyrylcellulose proposed by the present invention can not open reactor main body
In the case of realize being carried out continuously for activation and reaction, avoid the pollution for the volatile organic matter that the separation of activating solution is brought.
(3) the multi-functional synthesis reaction vessel of acetylbutyrylcellulose proposed by the present invention can by being transformed to pipeline
Carry out the precipitating of product, boiling, the sequence of operations such as be filtered, washed, it can be achieved that a tractor serves several purposes purpose.
Description of the drawings
Following further describes the present invention with reference to the drawings：
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is FT-IR (fourier infrared analysis) collection of illustrative plates of the pilot sample of the embodiment of the present invention；
Fig. 3 is 1H-NMR (hydrogen nuclear magnetic resonance spectrum analysis) collection of illustrative plates of the pilot sample of the embodiment of the present invention；
The noun that embodiment is related to Figure of description includes with label：Motor 1, agitating paddle 2, reactor main body 3, liquid
Distribution apparatus 4, heat conducting oil inlet 5, circulating pump 6, discharge port 7, strainer 8, conduction oil outlet 9, feeding port 10.
Specific implementation mode
Referring to figs. 1 to 3, a kind of multi-functional synthesis reaction vessel of acetylbutyrylcellulose, including reactor main body 3, be located at
Heating device in reactor main body 3, the agitating device being located in reactor main body 3, the filtering being located in reactor main body 3 dress
The liquid distribution device 4 set, being located in reactor main body 3 and the circulating pump 6 being connect with reactor main body 3.
In order to promote the reaction of solid material, circulating pump 6 includes inlet and liquid outlet, the inlet of circulating pump 6 with it is anti-
The bottom of kettle main body 3 is answered to connect, the liquid outlet of circulating pump 6 is connect with the top of reactor main body 3.When acetylbutyrylcellulose closes
When at reaction in activation stage, reaction mass is mainly solid, and solid material is difficult to stir, and is carried out using circulating pump 6 outer
Portion's cycle can promote the mixing of solid material by promoting liquid flowing.
In order to make liquid reactants be uniformly distributed, liquid distribution device 4 is connect with the liquid outlet of circulating pump 6.
Solid reactant blocks the inlet of circulating pump 6 in order to prevent, and filter device is located at agitating device and circulating pump 6
Between inlet.
In order to promote the reaction of solid-liquid mixture, agitating device to be located between liquid distribution device 4 and filter device.When
When acetylbutyrylcellulose synthetic reaction proceeds to the later stage, the viscosity of reaction mass reduces, and can start agitating device, make solid-liquid
Mixed material accelerates reaction, the uniformity coefficient of reaction efficiency and acetylbutyrylcellulose product can be improved, to improve product
Quality.
It is agitating paddle 2 to further promote the reaction of solid-liquid mixture, agitating device, agitating paddle 2 includes agitating shaft
With the blade being located on agitating shaft, blade is located between liquid distribution device 4 and filter device, and the top of reactor main body 3 is set
There is the motor 1 of driving agitating paddle 2.Agitating device can also include multiple agitating shafts, can also be arranged on each agitating shaft multiple same
The blade of axis.Agitating device can also be stirring rod.
Solid material is stacked on blade in order to prevent, and filter device is strainer 8, the top of strainer 8 and the bottom of blade
The distance between be set as a, 10cm≤a≤20cm.
For the ease of adding reaction mass, reactor main body 3 is equipped with feeding port 10, and feeding port 10 is located at liquid distribution dress
It sets between 4 and blade.
Agitating shaft is interfered with liquid distribution device 4 in order to prevent, and the center of liquid distribution device 4 is equipped with channel, stirs
Axis is mixed across channel and is connect with blade.
For the uniformity coefficient of further reaction mass mixing, the section of the inner cavity of reactor main body 3 is circle, and blade is set
Center in the inner cavity of reactor main body 3.
In order to keep reactor main body 3 corrosion-resistant and convenient for cleaning, reactor main body 3 is enamel material.
In order to keep circulating pump 6 corrosion-resistant and improve the cycle efficieny of liquid material, circulating pump 6 is corrosion resistant type centrifugal pump.
In order to make reactor main body 3 be heated evenly, heating device is heating jacket, and heating jacket is set in reactor main body
3 outside.
In order to improve the heat distribution situation of reaction system, heating jacket includes heat conducting oil inlet 5 and conduction oil outlet 9,
Heat conducting oil inlet 5 is located at the lower part of heating jacket, and conduction oil outlet 9 is located at the top of heating jacket.
The multi-functional synthesis reaction vessel of acetylbutyrylcellulose proposed by the present invention has two sets of Matter Transfer schemes.Place
When activation stage, solid material is difficult to stir, and selecting response uses centrifugal pump to carry out outer loop to reach the mixing of material
Purpose.When the reaction later stage, material viscosity reduces, and agitating paddle 2 can be selected and be stirred, it can be achieved that efficiently activation and reaction.
The multi-functional synthesis reaction vessel of acetylbutyrylcellulose proposed by the present invention can not open reactor main body 3
In the case of realize being carried out continuously for activation and reaction, avoid the pollution for the volatile organic matter that the separation of activating solution is brought.
The multi-functional synthesis reaction vessel of acetylbutyrylcellulose proposed by the present invention can be by being transformed to pipeline
The precipitating of row product, boiling, the sequence of operations such as be filtered, washed, it can be achieved that a tractor serves several purposes purpose.
One kind of the multi-functional synthesis reaction vessel production acetylbutyrylcellulose of acetylbutyrylcellulose proposed by the present invention
Embodiment：90g absorbent cotton, the acetic acid that volume is A and the butyric acid that volume is B is added into reactor main body 3 from material inlet, leads
Deep fat is flowed by heat conducting oil inlet 5, is flowed out by conduction oil outlet 9, and conduction oil temperature setting is 95 DEG C, open the circulation pump 6, cycle
2h is reacted, this stage is the activation of cellulose.After activation stage, continue from material inlet be added 408.6mL butyric anhydrides and
The 3mL concentrated sulfuric acids keep 95 DEG C of heat conduction oil temperature constant, and circulating pump 6 continues to run with 5min, then stop circulating pump 6, open stirring
Paddle 2, is stirred to react 5h；Discharge port 7 is connect with the inlet of circulating pump 6, after reaction puts reaction mass by discharge port 7
Go out, product is obtained by sequence of operations such as precipitating, boiling, washing, dryings.The structure of sample is by FT-IR (fourier infrareds point
Analysis) and 1H-NMR (hydrogen nuclear magnetic resonance spectrum analysis) analyzed.
The present embodiment provides three groups of pilot sample experimental datas：
Experimental group 1：The volume A=1800mL of acetic acid is added, the volume B=600mL of butyric acid is added.Reference Fig. 2 to 3, by
FT-IR and 1H-NMR quantitative analysis results show：Acetyl content 38.06%, bytyry content 14.49%.
Experimental group 2：The volume A=1200mL of acetic acid is added, the volume B=1200mL of butyric acid is added.Reference Fig. 2 to 3, by
FT-IR and 1H-NMR quantitative analysis results show：Acetyl content 29.36%, bytyry content 25.10%.
Experimental group 3：The volume A=300mL of acetic acid is added, the volume B=2100mL of butyric acid is added.Reference Fig. 2 to 3, by
FT-IR and 1H-NMR quantitative analysis results show：Acetyl content 9.50%, bytyry content 50.10%.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula, technical field those of ordinary skill within the scope of knowledge, can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (10)
1. a kind of multi-functional synthesis reaction vessel of acetylbutyrylcellulose, it is characterised in that：Including reactor main body (3), it is located at
Heating device in reactor main body (3), is located in reactor main body (3) agitating device being located in reactor main body (3)
Filter device, the liquid distribution device (4) being located in reactor main body (3) and the circulating pump being connect with reactor main body (3)
(6), the circulating pump (6) includes inlet and liquid outlet, and the inlet of circulating pump (6) connects with the bottom of reactor main body (3)
It connects, the liquid outlet of circulating pump (6) is connect with the top of reactor main body (3), and liquid distribution device (4) goes out with circulating pump (6)
Liquid mouth connects, and filter device is located between agitating device and the inlet of circulating pump (6), and agitating device is located at liquid distribution device
(4) between filter device.
2. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 1, it is characterised in that：The stirring
Device is agitating paddle (2), and agitating paddle (2) includes agitating shaft and the blade that is located on agitating shaft, and blade is located at the liquid distribution
For device (4) between filter device, the top of reactor main body (3) is equipped with the motor (1) of driving agitating paddle (2).
3. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 2, it is characterised in that：The filtering
Device is strainer (8), and the top of strainer (8) is set as a, 10cm≤a≤20cm with the distance between the bottom of the blade.
4. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 2, it is characterised in that：The reaction
Kettle main body (3) is equipped with feeding port (10), and feeding port (10) is located between the liquid distribution device (4) and the blade.
5. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 2, it is characterised in that：The liquid
The center of distribution apparatus (4) is equipped with channel, and the agitating shaft passes through channel and connect with the blade.
6. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 2, it is characterised in that：The reaction
The section of the inner cavity of kettle main body (3) is circle, and the blade is located at the center of the inner cavity of reactor main body (3).
7. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 1, it is characterised in that：The reaction
Kettle main body (3) is enamel material, and the circulating pump (6) is corrosion resistant type centrifugal pump.
8. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 1, it is characterised in that：The heating
Device is heating jacket, and heating jacket is set in the outside of the reactor main body (3).
9. the multi-functional synthesis reaction vessel of acetylbutyrylcellulose according to claim 8, it is characterised in that：The heating
Chuck includes heat conducting oil inlet (5) and conduction oil outlet (9), and heat conducting oil inlet (5) is located at the lower part of heating jacket, and conduction oil goes out
Mouth (9) is located at the top of heating jacket.
10. a kind of synthetic method of acetylbutyrylcellulose, it is characterised in that：Using described in any one of claim 1-9 described
The multi-functional synthesis reaction vessel of acetylbutyrylcellulose synthesizes acetylbutyrylcellulose.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140564A (en) * | 2022-05-13 | 2022-10-04 | 南京杰亚挤出装备有限公司 | Continuous production line for separating polyester cotton by alcoholysis method |
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2018
- 2018-05-25 CN CN201810520771.1A patent/CN108786668A/en active Pending
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| CN115140564A (en) * | 2022-05-13 | 2022-10-04 | 南京杰亚挤出装备有限公司 | Continuous production line for separating polyester cotton by alcoholysis method |
| CN115140564B (en) * | 2022-05-13 | 2024-06-18 | 南京杰亚挤出装备有限公司 | Continuous production line for separating polyester cotton by alcoholysis method |
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Application publication date: 20181113 |
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