CN206089045U - Carbon nanotube purification system of recovered acid - Google Patents
Carbon nanotube purification system of recovered acid Download PDFInfo
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- CN206089045U CN206089045U CN201620987057.XU CN201620987057U CN206089045U CN 206089045 U CN206089045 U CN 206089045U CN 201620987057 U CN201620987057 U CN 201620987057U CN 206089045 U CN206089045 U CN 206089045U
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Abstract
The utility model provides a carbon nanotube purification system of recovered acid, includes fluid reaction bed, heat exchanger, pure sour storage tank, heteroacid storage tank, grinds machine and two pressure filters, fluid reaction bed exhaust in acid vapour lets in the heat exchanger, the acid coolant liquid of heat exchanger exhaust lets in pure sour storage tank, fluid reaction bed exhaust carbon nanotube crude lets in the pressure filter, pressure filter exhaust acid solution lets in the heteroacid storage tank, pressure filter exhaust carbon nanotube crude lets in the machine of grinding, then lets in next pressure filter, obtains finished product carbon nanotube. The utility model discloses, the in acid vapour that obtains from the fluid reaction bed through heat exchanger cooling back, lets in pure sour storage tank, can directly be used behind the adjustment pH value, and contain impurity such as metal catalyst on the fluid reaction bed in the acid in the carbon nanotube crude solution, lets in the heteroacid storage tank, waits to separate metal ion and acidizing fluid, uses respectively.
Description
Technical field
This utility model is related to a kind of CNT purification system of recovery acid, belongs to CNT production technical field.
Background technology
CNT is a kind of tubular nanometer material being made up of carbon atom.Tube wall contains multilamellar carbon atom and is referred to as many walls
CNT（MWNT）, it is referred to as SWCN containing monolayer carbon atom（SWNT）.CNT since be found, one
It is straight of interest as researcher with its unique structure and excellent performance.Novel conductive/high-strength meet material, electronic device,
The aspects such as catalyst carrier material have potential application prospect.
The preparation technology of CNT mainly has：Arc discharge method, laser ablation method, chemical vapour deposition technique, solid-phase thermal
Solution, flame synthesis, electric glow discharge method and polyreaction synthetic method etc..Wherein, the application of chemical vapour deposition technique (CVD)
The most extensively, the method is to allow gaseous alkanes by being attached with the template of catalyst granules, under conditions of 600～1200 DEG C,
Gaseous hydrocarbon decomposes generation CNT.One outstanding advantages of this method are that Residual reactants are gas, may exit off reaction
System, obtains the higher CNT of purity, while temperature also need not be very high, comparatively saves energy.However, CVD
Method need to use transition-metal catalyst, and such as Fe, Co, Ni and its alloy etc. are used as catalyst.This causes prepared carbon nanometer
Often metal impurities containing high level in pipe, the presence of metal impurities can directly affect performance and the application of CNT.
The technique that metal impurities are removed from CNT is referred to as purification.CNT can be produced during purification reaction
Acid mist and spent acid.At present, acid mist and spent acid not only cause problem of environmental pollution, and increase all not through recycling
Production cost.
Utility model people is had found through retrieval：Application No. 201510466039.7, the entitled CNT of utility model
Method of purification, the patent disclose a kind of CNT method of purification, and the CNT method of purification is mainly included the following steps that：
A, during fixed bed or fluid unit prepare CNT or prepare after the completion of, be passed through reducing gas and/or indifferent gas
Body, specially hydrogen and/or carbon dioxide, the temperature of reaction is that, between 100 DEG C -800 DEG C, the response time is 3-60 minutes,
Gas flow rate is between 0.06m3/h-1000m3/h；B, stopping are passed through reducing gas, drop to room in the protection of noble gases
Temperature, noble gases are nitrogen and/or argon, that is, obtain the CNT that purity is more than 99.5%.This utility model CNT
Method of purification can be with process is simple, simple to operate on the premise of carbon pipe is not injured Impurity removal, purification efficiency it is high and
The advantages of cost is relatively low, is adapted to the CNT purification of industrial mass.But in the patent, after being passed through noble gases, and
Fully the oxidizing gas in fixed bed or fluid unit can not all be excluded, in fact, it is difficult to accomplish CNT
Can cool down in reducing gas and/or noble gases and not by autoxidation, cause the purity of CNT do not reach 99.5% with
On.
Utility model people is also had found through retrieval：Application No. 201210476918.4, the entitled one kind of utility model are pure
The method of carbon nano tube, the utility model discloses a kind of method of purifying carbon nano-tube, which comprises the steps of：Using rope
Family name's extraction method extracts the impurity in CNT crude product：First extracted with acid with strong oxidizing property, then deionized water is extracted.The practicality is new
The method of the purifying carbon nano-tube of the type acid with strong oxidizing property purifying carbon nano-tube for being in boiling temperature, handling process is simple, place
The reason time is short, eliminates the processes such as sucking filtration, centrifugation and substantially increases the efficiency of purifying carbon nano-tube；Purification process is to carbon nanometer
The damage that pipe is caused is little, and CNT after purification is heat-resist and with good reactivity and the compatibility；And acid can
Recycled with reclaiming, greatly save resource.Although the patent describes the partial impurities removed in CNT crude product, but
It is to have no mention of how to separate acid with strong oxidizing property and the impurity in deionized water, which can be reused, is unfavorable for industry
Change a large amount of production applications.
Utility model content
In order to solve above-mentioned problem, the utility model discloses a kind of CNT purification system of recovery acid
System, its concrete technical scheme are as follows：
A kind of CNT purification system of recovery acid, including fluid reaction bed, heat exchanger, pure acid storage tank, heteroacid storage tank,
Grinder and two pressure filter, the fluid reaction bed are used for the place reacted by carbon nanometer tube material powder and acid solution, institute
Stating heat exchanger is used for the acid vapors that cooling fluid reaction bed is produced, and the pure acid storage tank is used to store what heat exchanger cooling was obtained
Acid solution, the acid solution that the heteroacid storage tank is discharged in being used to store pressure filter and grinder, the pressure filter are used for extruded carbon nanometer
Liquid in pipe crude product, the grinder is for mixing homogeneously by CNT crude product and with non-oxidizable acid solution, and rinses
Fall the metal impurities in CNT crude product,
The acid vapors that the fluid reaction bed is discharged are passed through heat exchanger, and the acid coolant that the heat exchanger is discharged is passed through
Pure acid storage tank, the CNT crude product that the fluid reaction bed is discharged are passed through pressure filter, the acid solution that the pressure filter is discharged
Heteroacid storage tank is passed through, the CNT crude product that the pressure filter is discharged is passed through grinder, then passes to next pressure filter, obtain
Finished product CNT.
Be provided with air pump in the pure acid storage tank, the air pump from the bottom of pure acid storage tank to pure acid storage tank in conveying it is empty
Gas, for by the acid solution mix homogeneously in pure acid storage tank.
The heat exchanger selects jacketed type exchanger, the jacketed type exchanger to include container and chuck, the chuck bag
Bottom and the surrounding of container are trapped among, space between the chuck and container, is left, the upper end of the chuck are provided with steam inlet,
The lower end of the chuck is provided with cooling liquid outlet, and the top of the container is provided with liquid outlet, and the bottom of the container is arranged
There is inlet,
Sour gas from fluid reaction bed is entered in chuck from steam inlet, is formed by the cooling effect of chuck
Coolant, and from cooling liquid outlet discharge, be passed in acid storage tank, inject in the container in cooling jacket gas it is molten
Liquid, the bottom liquid inlet mouth of the solution from container in the container are entered, and are discharged from the liquid outlet of container top.
Agitating device is provided with the container, the agitating device includes central actuating shaft, and the central actuating shaft is passed through
It extend in container through chuck, and stretches out from the top of container, the central actuating shaft surrounding is provided with auger leaf, institute
Stating auger leaf and the top of container being threaded to from the bottom of container, the auger leaf offers several through holes, described
Through hole is distributed horizontally on auger leaf.
The auger leaf is divided longitudinally into some sections, leaves space between the auger leaf of adjacent segment.
The heat exchanger is filled in underground, and the steam inlet is flushed with ground, and the top of the central actuating shaft passes through
Driving means connect motor.
The inlet and cooling liquid outlet are located at around the bottom of central actuating shaft, and the liquid outlet is located at centre-driven
Beside the top of axle.
Operation principle of the present utility model is：
There is chemical reaction in this utility model, carbon nanometer tube material powder and acid solution on fluid reaction bed, generate carbon and receive
Mitron, can produce acid mist, be directly discharged in air, not only pollute environment in the course of reaction, while industrial chemicals are wasted, will
Acid mist is passed in heat exchanger, acid mist is cooled to acid solution, then the acid solution is passed in pure acid storage tank, in adjustment acid storage tank
The PH of acid solution, you can reuse.
The CNT crude product generated on fluid reaction bed is input to pressure filter, and the acid solution of pressure filter extrusion is transported to heteroacid
Storage tank, treats industrial abstract metal ion therein, reuses, meanwhile, purer acid is also isolated, industrial application is treated.Jing
Cross pressure filter process and obtain filter cake, then the filter cake is put in grinder, non-oxidizing acid is added, by CNT crude product table
The metal impurities in face are rinsed out, and the acid solution is also passed in acid storage tank, treat industrial application again.
The beneficial effects of the utility model are：
1. this utility model, the acid vapors obtained from fluid reaction bed, sour purity therein are high, cold by heat exchanger
But after, it is passed through in pure acid storage tank, uses after being directly adjusted pH value, and on fluid reaction bed in CNT crude product solution
Acid in containing the impurity such as metallic catalyst, be directly the acid solution containing metal impurities by the liquid of pressure filter extrusion, be passed through
Heteroacid storage tank, metal ion to be separated and acid solution；
2. this utility model, is provided with agitating device in heat exchanger, and the liquid agitation in container is flowed by agitating device, with
The liquid of chamber wall contact increases the heat exchanger effectiveness of the liquid in the gas and container in chuck in constantly flow regime,
Heat exchange efficiency is improved, heat energy is also improved and is absorbed and used rate；
3. this utility model, in auger leaf rotary course, liquid is rotated by the agitation of auger leaf, is promoted towards container
Wall flows, and liquid passes through through hole, forms turbulent flow, allows liquid sufficient heat exchange in flow process；
4. this utility model, is provided with air pump in acid storage tank, air pump from the bottom of acid storage tank to acid storage tank in convey air,
Acid solution mix homogeneously in acid storage tank can be conducive to accurately adjusting the PH of acid solution；
5. this utility model, heat exchanger fills the soil heat exchanger around underground, heat exchanger the effect of insulation, acid
Property gas in chuck, heat energy improves the heat utilization rate in sour gas fully by the liquid absorption in container, fully, it is to avoid
Industrial heat energy is wasted.
Description of the drawings
Fig. 1 is annexation schematic diagram of the present utility model,
Fig. 2 is the structural representation of jacketed type exchanger of the present utility model,
Reference numerals list：1-central actuating shaft, 2-liquid outlet, 3-container, 4-steam inlet, 5-chuck, 6-
Auger leaf, 7-inlet, 8-cooling liquid outlet.
Specific embodiment
With reference to the accompanying drawings and detailed description, further elucidate this utility model.It should be understood that following specific embodiment parties
Formula is merely to illustrate this utility model rather than limits scope of the present utility model.
Fig. 1 is annexation schematic diagram of the present utility model, visible with reference to accompanying drawing, and a kind of this CNT of recovery acid is carried
Pure lines system, including fluid reaction bed, heat exchanger, pure acid storage tank, heteroacid storage tank, grinder and two pressure filter, the fluid is anti-
Bed is answered to be used for the place reacted by carbon nanometer tube material powder and acid solution, the heat exchanger is produced for cooling fluid reaction bed
Acid vapors, the pure acid storage tank is used to store the heat exchanger acid solution that obtains of cooling, and the heteroacid storage tank is used to store filter pressing
The acid solution discharged in machine and grinder, the pressure filter are used to extrude the liquid in CNT crude product, and the grinder is used for
Mix homogeneously by CNT crude product and with non-oxidizable acid solution, and rinse out the metal impurities in CNT crude product.
The acid vapors that the fluid reaction bed is discharged are passed through heat exchanger, and the acid coolant that the heat exchanger is discharged is passed through
Pure acid storage tank, the CNT crude product that the fluid reaction bed is discharged are passed through pressure filter, the acid solution that the pressure filter is discharged
Heteroacid storage tank is passed through, the CNT crude product that the pressure filter is discharged is passed through grinder, then passes to next pressure filter, obtain
Finished product CNT.This utility model, collects acid solution respectively according to the purity of acid solution, and pure acid storage is discharged into after acid vapors cooling
In tank, the acid solution containing impurity is discharged in heteroacid storage tank.
Be provided with air pump in the pure acid storage tank, the air pump from the bottom of pure acid storage tank to pure acid storage tank in conveying it is empty
Gas, for by the acid solution mix homogeneously in pure acid storage tank.In the presence of air stream, air stream has to the acid solution in pure acid storage tank
Effect, acid solution is agitated to be in continuous turbulence state, be conveniently adjusted and obtain accurate pH value.
Fig. 2 is the structural representation of jacketed type exchanger of the present utility model, visible with reference to accompanying drawing, and the heat exchanger is selected
Jacketed type exchanger, the jacketed type exchanger include container 3 and chuck 5, and the chuck 5 is enclosed in the bottom of container 3 and four
In week, space between the chuck 5 and container 3, is left, the upper end of the chuck 5 is provided with steam inlet 4, under the chuck 5
End is provided with cooling liquid outlet 8, and the top of the container 3 is provided with liquid outlet 2, and the bottom of the container 3 is provided with inlet
7。
Sour gas from fluid reaction bed is entered in chuck 5 from steam inlet 4, by the cooling effect of chuck 5
Coolant is formed, and is discharged from cooling liquid outlet 8, be passed in acid storage tank, inject in the container 3 in cooling jacket 5
The solution of gas, the bottom liquid inlet mouth 7 of the solution from container 3 in the container 3 are entered, 2 row of liquid outlet from the top of container 3
Go out.Liquid is cooled into from the acid vapors of fluid reaction bed, the heat in steam by liquid absorption in container 3, steam with
Liquid flow direction in container 3 is conversely, improve heat exchanger effectiveness.
Agitating device is provided with the container 3, the agitating device includes central actuating shaft 1, the central actuating shaft 1
Penetrate chuck 5 to extend in container 3, and stretch out from the top of container 3,1 surrounding of the central actuating shaft is provided with spiral and stirs
Leaf 6 is mixed, the auger leaf 6 is threaded to the top of container 3 from the bottom of container 3, and the auger leaf 6 offers some
Individual through hole, the through hole are distributed horizontally on auger leaf 6.Liquid agitation in container 3 can be flowed by auger leaf 6
Come, liquid internal carries out heat exchange, it is to avoid the temperature of liquid near 3 wall of container is high, and the temperature of liquid near 3 center of container is low,
The liquid allowed in container 3 can fully absorb heat energy.
The auger leaf 6 is divided longitudinally into some sections, leaves space between the auger leaf 6 of adjacent segment.Avoid liquid
Body inertia flows, and liquid interrupts inertia flowing in space, strengthens the scrambling that liquid in container 3 flows, allows in container 3
Liquid internal heat energy is fully dispersed uniform.
The heat exchanger is filled in underground, and the steam inlet 4 is flushed with ground, and the top of the central actuating shaft 1 leads to
Over-driving device connects motor.Avoid the heat energy in heat exchanger by diffusion in atmosphere, soil is solid around heat exchanger again
Surely it is ignorant of, and the good heat insulating of soil, after soil is heated to predetermined temperature by chuck 5, the heat energy in steam is just fully
By the liquid absorption in container 3.
The inlet 7 and cooling liquid outlet 8 are located at around the bottom of central actuating shaft 1, and the liquid outlet 2 is located at center
Beside the top of drive shaft 1.Guarantee that central actuating shaft 1 is passed through from the longitudinal center of 5 heat exchanger of chuck.
Technological means disclosed in this utility model scheme are not limited only to the technological means disclosed in above-mentioned technological means, also
Including the technical scheme being made up of above technical characteristic combination in any.
With it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited to new technical scope in description, it is necessary to its technology is determined according to right
Property scope.
Claims (7)
1. the CNT purification system of a kind of recovery acid, is characterized in that including fluid reaction bed, heat exchanger, pure acid storage tank, miscellaneous
Acid storage tank, grinder and two pressure filter, the fluid reaction bed are reacted for carbon nanometer tube material powder and acid solution
Place, the heat exchanger are used for the acid vapors that cooling fluid reaction bed is produced, and the pure acid storage tank is cold for storing heat exchanger
But the acid solution for obtaining, the acid solution that the heteroacid storage tank is discharged in being used to store pressure filter and grinder, the pressure filter are used to squeeze
Liquid in pressure CNT crude product, the grinder is for mixing by CNT crude product and with non-oxidizable acid solution
It is even, and the metal impurities in CNT crude product are rinsed out,
The acid vapors that the fluid reaction bed is discharged are passed through heat exchanger, and the acid coolant that the heat exchanger is discharged is passed through pure acid
Storage tank, the CNT crude product that the fluid reaction bed is discharged are passed through pressure filter, and the acid solution that the pressure filter is discharged is passed through
Heteroacid storage tank, the CNT crude product that the pressure filter is discharged are passed through grinder, then pass to next pressure filter, obtain finished product
CNT.
2. the CNT purification system of a kind of recovery acid according to claim 1, in it is characterized in that the pure acid storage tank
Be provided with air pump, the air pump from the bottom of pure acid storage tank to pure acid storage tank in convey air, for by the acid in pure acid storage tank
Liquid mix homogeneously.
3. a kind of CNT purification system of recovery acid according to claim 1, is characterized in that the heat exchanger is selected
Jacketed type exchanger, the jacketed type exchanger include container and chuck, and the chuck is enclosed in the bottom of container and surrounding, institute
State, the upper end of the chuck is provided with steam inlet, the lower end of the chuck is provided with cold
But liquid outlet, the top of the container are provided with liquid outlet, and the bottom of the container is provided with inlet,
Sour gas from fluid reaction bed is entered in chuck from steam inlet, forms cooling by the cooling effect of chuck
Liquid, and discharge from cooling liquid outlet, it is passed in acid storage tank, in the container, injects the solution for gas in cooling jacket,
The bottom liquid inlet mouth of the solution from container in the container is entered, and is discharged from the liquid outlet of container top.
4. a kind of CNT purification system of recovery acid according to claim 3, is arranged in it is characterized in that the container
There is agitating device, the agitating device includes central actuating shaft, and the central actuating shaft penetrates chuck and extend in container, and
Stretch out from the top of container, the central actuating shaft surrounding is provided with auger leaf, and the auger leaf is from the bottom of container
Portion is threaded to the top of container, and the auger leaf offers several through holes, and the through hole is distributed horizontally to auger
Ye Shang.
5. a kind of CNT purification system of recovery acid according to claim 4, is characterized in that the auger leaf
Some sections are divided longitudinally into, between the auger leaf of adjacent segment, space is left.
6. a kind of CNT purification system of recovery acid according to claim 4, is characterized in that the heat exchanger landfill
In underground, the steam inlet is flushed with ground, and the top of the central actuating shaft is connected via drive motor.
7. the CNT purification system of a kind of recovery acid according to claim 4, is characterized in that the inlet and cold
But around the bottom of central actuating shaft, the liquid outlet is located at beside the top of central actuating shaft for liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620987057.XU CN206089045U (en) | 2016-08-31 | 2016-08-31 | Carbon nanotube purification system of recovered acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620987057.XU CN206089045U (en) | 2016-08-31 | 2016-08-31 | Carbon nanotube purification system of recovered acid |
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| Publication Number | Publication Date |
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| CN206089045U true CN206089045U (en) | 2017-04-12 |
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ID=58473829
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365147A (en) * | 2016-08-31 | 2017-02-01 | 无锡东恒新能源科技有限公司 | Carbon nano tube purification system for acid recovery |
-
2016
- 2016-08-31 CN CN201620987057.XU patent/CN206089045U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365147A (en) * | 2016-08-31 | 2017-02-01 | 无锡东恒新能源科技有限公司 | Carbon nano tube purification system for acid recovery |
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