CN205990244U - A kind of fluorination stove and twin furnace fluorinated systems - Google Patents
A kind of fluorination stove and twin furnace fluorinated systems Download PDFInfo
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- CN205990244U CN205990244U CN201621016701.5U CN201621016701U CN205990244U CN 205990244 U CN205990244 U CN 205990244U CN 201621016701 U CN201621016701 U CN 201621016701U CN 205990244 U CN205990244 U CN 205990244U
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Abstract
The utility model discloses a kind of fluorination stove and twin furnace fluorinated systems, belong to Fluorine Equipment technical field.This fluorination stove includes body of heater, described body of heater is provided with gas feed and gas outlet, is provided with two gas distribution grids in body of heater between gas feed and gas outlet, body of heater inner chamber is divided into the inlet chamber directly being connected with gas feed, is used for placing the reaction chamber that raw material carries out fluorination reaction and the discharge chamber directly being connected with gas outlet.Fluorination stove of the present utility model, it is provided with two gas distribution grids in body of heater between gas feed and gas outlet in body of heater, reaction chamber between two gas distribution grids for the fluorination reaction is carried out, avoid the situation that the raw material four that air inlet directly purges raw material and aerofluxuss whirlpool causes dissipates or runs off with aerofluxuss, improve the yield of product；Between two gas distribution grids, fluorine gas is evenly distributed simultaneously, promotes fluorination reaction uniformly to carry out, and is conducive to that reacts fully to carry out, improves the utilization rate of fluorine raw material.
Description
Technical field
This utility model belongs to Fluorine Equipment technical field and in particular to a kind of fluorination stove, is related to a kind of employing simultaneously
The twin furnace fluorinated systems of this fluorination stove.
Background technology
Fluorinated graphene is the derivant of Graphene, belongs to one of high-end fluoride, be Graphene by part or
Product after being all fluorinated, is insulator the thinnest in the world, also referred to as two-dimentional politef；It can be by peeling off fluorination stone
Ink or directly Graphene fluorination is obtained.Fluorinated graphene has the excellent properties of fluorographite, also has Graphene simultaneously
Unique performance, is widely used in the high performance device such as civilian and military field and material, such as lubriation material, transistor, storage
Energy material, anticorrosive paint and composite etc..In energy storage material, fluorographite, Graphene or fluorinated graphene and lithium battery
Lithium in electrode material forms lithium-perfluorocarbon (Li-CFx), and lithium-perfluorocarbon chemical energy storage power supply has high specific discharge capacity,
Low using temperature range width, stable operating voltage, self-discharge rate, discharge voltage is gentle, is acknowledged as lifting lithium ion battery energy
One of material of the optimal material of metric density and automotive light weight technology.
Up to now, the product of domestic fluorinated graphene also rests on the laboratory research stage, can only be obtained several grams every time
Product, does not have a mechanism and enterprise to be capable of the volume production of fluorinated graphene.In now reporting both at home and abroad, the system of fluorinated graphene
Standby mainly adopt fluorographite mechanical stripping, fluorographite supersound process and be fluorinated stone using xenon difluoride in polar solvent
Preparing fluorinated graphene, these technology all have that efficiency is low, chemical reagent is expensive, be difficult the technology such as batch production to black alkene technology
Bottleneck.Because C-F key is existed with covalent bond form in traditional perfluorocarbon, lead to that its conductivity is extremely low, ion transport capability is poor, no
Method is applied to exploitation and the more difficult extensive enforcement of industrialization of high magnification energy-storage battery.And legal system is peeled off by hydro-thermal by University Of Tianjin
For the monolayer fluorinated graphene containing C-F half ionic bond, and high-energy-density lithium primary cell is made as positive electrode using it,
Discharge stability, its specific power characteristic improves an order of magnitude, substantially improves the chemical property of lithium battery.Since then, it is fluorinated stone
The research of black alkene and its production equipment becomes the focus and emphasis of Chinese scholars research.
In prior art, CN105271199A discloses a kind of preparation method of fluorinated graphene, and its step includes：By stone
Black alkene is put in reactor, under conditions of temperature is for 100-500 DEG C, fluorine volumetric concentration be 10-100% fluorine, nitrogen mixing
Gas is changed commanders lower reaction 5-50 hour, obtains the fluorinated graphene that fluorine carbon ratio is 0.1-1.3.Although said method can smoothly obtain fluorine
Graphite alkene, but using general reactor, carry out fluorination reaction by being continually fed into mixed atmosphere, air inlet easily occurs and directly blows
Sweep raw material and situation that raw material four that aerofluxuss whirlpool causes dissipates or runs off with aerofluxuss, fluorination reaction is uneven, the profit to Fluoride for Raw Material
Not high with rate, cause the waste of resource；It is the interval preparation process of experiment rank simultaneously, can't realize heavy industrialization
Continuous production.
CN203668488U discloses a kind of rare earth oxide fluorination stove, including shell, flue, gas access tube and charge
Disk, material holding tray is evenly distributed in flue, and described flue is placed in the zone of heating with heat-insulation layer, the open top of described flue
It is provided with exhaust collection cover, that is, exhaust collection cover is placed on flue, in order to collect reaction emission, hydrogen fluoride gas access tube
Access from flue bottom, in the stove of gas access tube, one end is provided with isocon, and described isocon is lateral along inboard wall of furnace two
On extend in the middle part of flue, described isocon is evenly equipped with puff prot.Although this fluorination stove carries out one by isocon to air inlet
Determine the distribution of degree, but the puff prot on isocon still directly can purge raw material, and isocon raw gas concentration nearby
Height, and the raw gas concentration at exhaust collection cover is low, forms the Concentraton gradient of unstrpped gas in conversion zone, causes fluorine
Change and react uneven, fluorinated product yield is low, not high to the availability of raw material, causes the waste of resource.
Content of the invention
The purpose of this utility model is to provide a kind of fluorination stove, solves air inlet in existing fluorination stove and directly purges raw material and stove
The problem that fluorination reaction is uneven, raw material availability is not high that interior unstrpped gas skewness causes.
Second purpose of this utility model volume is to provide a kind of twin furnace fluorinated systems using above-mentioned fluorination stove.
In order to realize object above, this utility model be employed technical scheme comprise that：
A kind of fluorination stove, including body of heater, described body of heater is provided with gas feed and gas outlet, in gas feed in body of heater
Be provided with two gas distribution grids and gas outlet between, by body of heater inner chamber be divided into the inlet chamber directly connecting with gas feed,
For placing the reaction chamber that raw material carries out fluorination reaction and the discharge chamber directly connecting with gas outlet.
Fluorination stove of the present utility model, is provided with two gases in body of heater in body of heater between gas feed and gas outlet
Distribution grid, reaction chamber between two gas distribution grids for the fluorination reaction carries out, it is to avoid air inlet directly purges raw material and aerofluxuss
The situation that the raw material four that whirlpool causes dissipates or runs off with aerofluxuss, improves the yield of product；Fluorine between two gas distribution grids simultaneously
Gas is evenly distributed, and promotes fluorination reaction uniformly to carry out, and is conducive to that reacts fully to carry out, improves the utilization rate of fluorine raw material.
Two gas distribution grids are parallel to each other and are all vertically arranged in body of heater.Gas distribution grid is vertically arranged, can maximum limit
Concentraton gradient in reaction intracavity in the unstrpped gas that avoids of degree, makes full use of the space in body of heater simultaneously.
Described gas distribution grid is porous plate.
It is additionally provided with the air inlet distributor being connected with gas feed in described inlet chamber.
Described air inlet distributor includes the vertical tube directly connecting with gas feed, on described vertical tube uniform intervals be connected with to
Few two horizontal gas distribution tubes, described air inlet distributor is close to the inwall setting of body of heater, in gas distribution tube away from body of heater
On the tube wall of inwall, uniform intervals are provided with air inlet.Air inlet distributor makes the gas entering inlet chamber be uniformly distributed, with gas
Distribution grid cooperates, and further increases the uniformity of reaction intracavity gas distribution.
Described fluorination stove also includes the container that for placement in the reactor chamber hold raw material matching used with body of heater.Described
Container is the Noah's ark of nickel system or Hastelloy.During use, raw material graphene oxide is placed in Noah's ark, divides uniformly, material
THICKNESS CONTROL is in below 3.0mm；After dividing uniformly, add a cover nickel alloy silk screen or Hastelloy silk screen on material；By material
The reaction intracavity being placed in fluorination stove together with Noah's ark, silk screen carries out fluorination reaction.The purpose adding a cover silk screen is to prevent in course of reaction
Equipment material occurs side reaction to drop contaminated samples.
A kind of twin furnace fluorinated systems, including two above-mentioned fluorination stoves, the respectively first fluorination stove and second is fluorinated stove；The
The gas feed of one fluorination stove is connected with air inlet pipeline, and the gas outlet of the first fluorination stove passes through the first pipeline and the second fluorination stove
Gas feed be connected, described second fluorination stove gas outlet be connected with described air inlet pipeline by the second pipeline.
Described first fluorination stove, the gas feed of the second fluorination stove, gas outlet are provided with valve.
It is connected with described air inlet pipeline for being fluorinated stove supply or the fluoro-gas supply air line being evacuated, nitrogen for first
Supply air line and vacuum-pumping pipeline；It is connected with described first pipeline for the fluoro-gas for the second fluorination stove supply or pumping
Supply air line, nitrogen supply air line and vacuum-pumping pipeline.Described fluoro-gas supply air line, nitrogen supply air line and vacuum-pumping tube
Valve is provided with road.
Tail gas exhausting pipe road for the first fluorination fire grate tail gas is additionally provided with described first pipeline；On described second pipeline also
It is provided with the tail gas exhausting pipe road for the second fluorination fire grate tail gas.Described tail gas exhausting pipe road is provided with valve；The first pipeline, second
On pipeline, it is provided with valve between tail gas exhausting pipe road and fluoro-gas supply air line, nitrogen supply air line, vacuum-pumping pipeline, makes
Each pipeline energy each independent communication or cut-out, is mutually independent of each other.
Cooling water circulating device for cooling line is additionally provided with the first fluorination stove on described air inlet pipeline；Described
Cooling water circulating device for cooling line is additionally provided with the second fluorination stove on the first pipeline.
Twin furnace fluorinated systems of the present utility model, the first fluorination stove including series connection and the second fluorination stove, when using, will
In one fluorination stove, completely fluoro-gas is passed through in another fluorination stove and carries out fluorination reaction it is achieved that double fluorination stove unreacted
Alternately it is fluorinated, realize ladder while producing high-end fluorinated graphene and utilize fluorine resource, greatly improve the profit of Fluoride for Raw Material
With rate it is achieved that the continuous production of fluorinated graphene is it is easy to heavy industrialization is applied.
Brief description
Fig. 1 is the structural representation of the twin furnace fluorinated systems of embodiment 1；
Fig. 2 is the top view being fluorinated stove in Fig. 1.
Specific embodiment
With reference to specific embodiment, this utility model is further described.
Embodiment 1
The twin furnace fluorinated systems of the present embodiment, as shown in figure 1, include the first fluorination stove 11 and the second fluorination stove of series connection
12.
The structure identical (specifically as shown in Figure 2) of two fluorination stoves, including body of heater 1, described body of heater 1 is provided with gas feed 2
With gas outlet 3, described gas feed 2 is arranged on the side wall of body of heater 1, and gas outlet 3 is arranged on relative opposite side wall
On；Vertically is provided with two gas distribution grids being parallel to each other in body of heater between gas feed 2 and gas outlet 3, is followed successively by the
One gas distribution grid 4 and second gas distribution grid 5, described first gas distribution grid 4, second gas distribution grid 5 are porous plate,
Vertically it is fixed on the inwall of body of heater 1 by supporting 10, body of heater inner chamber is divided into the inlet chamber directly connecting with gas feed 2
1-1, for placing the reaction chamber 1-2 and the discharge chamber 1-3 directly connecting with gas outlet 3 that raw material carries out fluorination reaction.
It is additionally provided with the air inlet distributor 6 being connected with gas feed 2 in described inlet chamber 1-1；Described air inlet distributor bag
Include the vertical tube 6-1 directly connecting with gas feed 2, on described vertical tube 6-1, uniform intervals are connected with four horizontal gas distributions
Pipe 6-2, described air inlet distributor 6 be close to body of heater 1 inwall setting, gas distribution tube 6-2 away from inboard wall of furnace body tube wall (i.e.
Side tube wall towards first gas distribution grid 4) upper uniform intervals are provided with air inlet；
It is additionally provided with manhole 9 on described body of heater 1；The outside of body of heater 1 is provided with heat-insulation layer 7, is provided between body of heater 1 and heat-insulation layer 7
For the heater strip 8 that body of heater is heated.
In the twin furnace fluorinated systems of the present embodiment (as shown in Figure 1), the gas feed 3-1 of described first fluorination stove 11 connects
There is inlet ductwork 14, described inlet ductwork 14 is sequentially provided with valve b and valve f along near the direction of the first fluorination stove 11,
Inlet ductwork 14 between valve b, valve f is connected with fluoro-gas supply air line 23, nitrogen supply air line 16 and vacuum-pumping tube
Road 18, fluoro-gas supply air line 23 is provided with valve a, and (preferably fluorine nitrogen mixes fluoro-gas supply air line 23 with fluoro-gas
Gas) source of the gas connect；Nitrogen supply air line 16 (being connected with Nitrogen source gases) is provided with valve c；Vacuum-pumping pipeline 18 is provided with valve
E, vacuum-pumping pipeline 18 is connected with vacuum pump；Valve f is positioned close at the gas feed 3-1 of the first fluorination stove 11, near valve
Inlet ductwork 14 at door f is provided with cooling water circulating device 13, described cooling water circulating device 13 is connected with cooling water and supplies
Water pipe 13-1 and CWR 13-2, for cooling down one section of inlet ductwork near the first fluorination stove 11；
The gas outlet 3-1 of the first fluorination stove 11 is connected by the first pipeline 15 with the gas feed of the second fluorination stove 12
Connect, the first pipeline 15 is sequentially provided with valve g, valve m and valve q, the first pipeline 15 between valve g and valve m connects
There is tail gas exhausting pipe road 19；Tail gas exhausting pipe road 19 is provided with valve k, and tail gas exhausting pipe road 20 is used for to be contained with Lithium hydroxide molten
The absorption tower of liquid connects；It is connected with fluoro-gas supply air line 22, nitrogen on the first pipeline 15 between valve m and valve q
Supply air line 20 and vacuum-pumping pipeline 21, fluoro-gas supply air line 22 is provided with valve n, fluoro-gas supply air line 22 with contain
The source of the gas of fluorine gas (preferably fluorine nitrogen mixed gas) connects；Nitrogen supply air line 20 (being connected with Nitrogen source gases) is provided with valve o；Take out
Vacuum line 21 is provided with valve p, and vacuum-pumping pipeline 21 is connected with vacuum pump；Described valve q is positioned close to the second fluorination stove
At 12 gas feed 2-2, the second pipeline at valve q is provided with cooling water circulating device (structure and function and cooling
Water circle device 13 is identical, and in figure is not drawn into).
The gas outlet 3-2 of the second fluorination stove 12 is passed through the second pipeline 24 and is connected with the air inlet pipeline 14 of the first fluorination stove 11
Connect, junction is located at the front end of valve b；It is provided with valve r at the second fluorination stove 12 on second pipeline 24, valve r rear
Tail gas exhausting pipe road 17 is connected with the second pipeline 24, tail gas exhausting pipe road 17 is provided with valve d, tail gas exhausting pipe road 17 is used for and holds
The absorption tower having Lithium hydroxide solution connects.
The method that fluorinated graphene by-product high purity lithium fluoride is prepared using the twin furnace fluorinated systems realization of the present embodiment, specifically
Comprise the steps：
1) take graphene oxide to be placed in nickel system or the Noah's ark of Hastelloy, divide uniformly, material thickness controls in 3mm
Below；After material is divided uniformly, add a cover nickel alloy silk screen or Hastelloy silk screen on material, prevent from setting in course of reaction
Standby material occurs side reaction to drop contaminated samples；
2) Noah's ark with material is respectively placed in the first fluorination stove 11 and the reaction chamber 1-2 of the second fluorination stove 12, by fluorine
Change stove airtight；
3) fluorination stove starts to warm up, and (gas feed for cooling down be fluorinated stove is connected to open cooling water circulating device
One section of pipeline), open vacuum pump, control valve carries out evacuation to fluorination stove, is evacuated to furnace pressure in 0～0.04MPa simultaneously
Between；When temperature rises to 280～320 DEG C, heated at constant temperature 0.5～3.0h, to remove the air of raw material surface adsorption, moisture
Deng impurity；
4) valve and air relief valve (valve a), the control fluorine nitrogen mixed gas gas of fluorine nitrogen mixed gas source of the gas after constant temperature remove impurity, are opened
Source supply gas pressure is 0.01～0.5MPa；It is then turned on fluorine nitrogen mixed gas mass flowmenter controller by required fluorine nitrogen mixed gas
Uniformly be passed through the first fluorination stove 11, control the mass ratio that the fluorine nitrogen mixed gas being passed through meet fluorine gas and graphene oxide be 1.25～
1.5:1, it is to slowly warm up to 400～550 DEG C simultaneously and ensure that reaction temperature terminates to reaction；
In course of reaction, in the first fluorination stove 11 during pressures near atmospheric (furnace pressure reaches 0.085MPa), open
Valve g on first pipeline 15, valve m and valve q (valve k, valve n, valve o and valve p are in closed mode), utilize
Atmospheric flow is fluorinated unreacted in stove 11 by first, and completely fluorine nitrogen mixed gas are passed through in the second fluorination stove 12 and carry out fluorination reaction,
The temperature control of its fluorination reaction is with the first fluorination stove；
5) after fluorination reaction is complete in the first fluorination stove 11, fluorine nitrogen mixed gas gas source feed valve, decompression are closed successively
(the valve m on valve a) and the first pipeline 15, the temperature control instrument of the first fluorination stove 11 stops heating to valve；
6) (valve c), controls nitrogen flow rate, and nitrogen is passed through in the first fluorination stove 11 for unlatching Nitrogen source gases valve and air relief valve
Material replace fluorine nitrogen mixed gas in stove in cooling stove；Open the valve k on the first fluorination stove 11 rear tail gas exhausting pipe road 19, put
The fluorine nitrogen mixed gas swapping out and the excessive nitrogen being passed through are passed through in the absorption tower contained by Lithium hydroxide solution, with high-purity hydrogen-oxygen
Change the reaction in the airflow stirring that fluorine nitrogen mixed gas or nitrogen are formed of lithium solution and generate high purity lithium fluoride, the pH value of system to be absorbed
During for 2～3, filter, wash, be drying to obtain high purity lithium fluoride；The tail gas producing in absorption process filters after lime treatment, filter
Liquid is used for the preparation of Lithium hydroxide solution, and filtering residue takes out cement plant；
7), after in the first fluorination stove 11 material is cooled to room temperature, close Nitrogen source gases valve and air relief valve (valve c), and the
Valve k on one fluorination stove 11 rear tail gas exhausting pipe road 19, the Noah's ark filling material is taken out, products obtained therefrom is high-quality
Fluorinated graphene；New graphene oxide raw material is placed in the reaction intracavity of the first fluorination stove 11 together with Noah's ark, according to step 3)
Constant temperature remove impurity is carried out to raw material；
While the first fluorination stove 11 cooling, (valve n), by fluorine nitrogen for unlatching fluorine nitrogen mixed gas gas source valve and air relief valve
Gaseous mixture is passed through in the second fluorination stove 12 and carries out fluorination reaction, and whole fluorination reaction operation is with the first fluorination stove fluorination reaction；Instead
During answering, in the first fluorination stove 12 during pressures near atmospheric (furnace pressure reaches 0.085MPa), open the second pipeline
(valve d, valve a, valve c and valve e are in closing shape the valve b on valve r and air inlet pipeline on 24 and valve f
State), completely fluorine nitrogen mixed gas are passed through in the second fluorination stove 11 and carry out to be fluorinated unreacted in stove 12 using atmospheric flow by first
Fluorination reaction (raw material is through constant temperature remove impurity)；
8) after fluorination reaction is complete in the second fluorination stove 12, fluorine nitrogen mixed gas gas source feed valve, decompression are closed successively
(the valve b on valve n) and inlet ductwork 14, the temperature control instrument of the second fluorination stove 12 stops heating to valve；
9) (valve o), controls nitrogen flow rate, and nitrogen is passed through in the first fluorination stove 12 for unlatching Nitrogen source gases valve and air relief valve
Material replace fluorine nitrogen mixed gas in stove in cooling stove；Open the valve d on the second fluorination stove 12 rear tail gas exhausting pipe road 17, put
The fluorine nitrogen mixed gas swapping out and the excessive nitrogen being passed through are passed through in the absorption tower contained by Lithium hydroxide solution, with high-purity hydrogen-oxygen
Change the reaction in the airflow stirring that fluorine nitrogen mixed gas or nitrogen are formed of lithium solution and generate high purity lithium fluoride, the pH value of system to be absorbed
During for 2～3, filter, wash, be drying to obtain high purity lithium fluoride；The tail gas producing in absorption process filters after lime treatment, filter
Liquid is used for the preparation of Lithium hydroxide solution, and filtering residue takes out cement plant；
10) after in the second fluorination stove 12, material is cooled to room temperature, close Nitrogen source gases valve and air relief valve (valve o), and
Valve d on second fluorination stove 12 rear tail gas exhausting pipe road 17, the Noah's ark filling material is taken out, products obtained therefrom is high-quality
Fluorinated graphene；New graphene oxide raw material is placed in the reaction chamber 1-2 of the second fluorination stove 12 together with Noah's ark, according to step
Rapid 3) carry out constant temperature remove impurity to raw material；
While the second fluorination stove 12 cooling, (valve a), by fluorine nitrogen for unlatching fluorine nitrogen mixed gas gas source valve and air relief valve
Gaseous mixture is passed through in the first fluorination stove 11 and carries out fluorination reaction.
Replace according to this, circulate operation, the continuous prodution of fluorinated graphene by-product high purity lithium fluoride is prepared in realization.
Using the twin furnace fluorinated systems of the present embodiment, the yield of gained fluorinated graphene reaches more than 95.00%, Fluoride for Raw Material
Utilization rate reach more than 94.50%.
Claims (10)
1. a kind of fluorination stove, including body of heater it is characterised in that：Described body of heater is provided with gas feed and gas outlet, in body of heater
It is provided with two gas distribution grids between gas feed and gas outlet, body of heater inner chamber is divided into and directly connects with gas feed
Inlet chamber, carry out the reaction chamber of fluorination reaction and the discharge chamber directly connecting with gas outlet for placing raw material.
2. according to claim 1 fluorination stove it is characterised in that：Two gas distribution grids are parallel to each other and are all vertically arranged in
In body of heater.
3. according to claim 2 fluorination stove it is characterised in that：Described gas distribution grid is porous plate.
4. according to claim 1 fluorination stove it is characterised in that：It is additionally provided with described inlet chamber and be connected with gas feed
Air inlet distributor.
5. according to claim 3 fluorination stove it is characterised in that：Described air inlet distributor includes directly connecting with gas feed
Logical vertical tube, on described vertical tube, uniform intervals are connected with least two horizontal gas distribution tubes, and described air inlet distributor is close to
The inwall setting of body of heater, is provided with air inlet in gas distribution tube away from uniform intervals on the tube wall of inboard wall of furnace body.
6. according to claim 1 fluorination stove it is characterised in that：Described fluorination stove also includes the matching used use with body of heater
Hold the container of raw material in placement in the reactor chamber.
7. a kind of twin furnace fluorinated systems it is characterised in that：Including two fluorination stoves as any one of claim 1-6,
It is respectively the first fluorination stove and the second fluorination stove；The gas feed of the first fluorination stove is connected with air inlet pipeline, the first fluorination stove
Gas outlet is connected with the gas feed of the second fluorination stove by the first pipeline, and the gas outlet of described second fluorination stove passes through
Second pipeline is connected with described air inlet pipeline.
8. twin furnace fluorinated systems according to claim 7 it is characterised in that：It is connected with described air inlet pipeline for for
The fluoro-gas supply air line of one fluorination stove supply or pumping, nitrogen supply air line and vacuum-pumping pipeline；On described first pipeline
It is connected with fluoro-gas supply air line, nitrogen supply air line and the vacuum-pumping pipeline for supplying or being evacuated for the second fluorination stove.
9. twin furnace fluorinated systems according to claim 8 it is characterised in that：It is additionally provided with for first on described first pipeline
The tail gas exhausting pipe road of fluorination fire grate tail gas；Tail gas exhausting pipe for the second fluorination fire grate tail gas is additionally provided with described second pipeline
Road.
10. twin furnace fluorinated systems according to claim 7 it is characterised in that：Near the first fluorination on described air inlet pipeline
It is additionally provided with the cooling water circulating device for cooling line at stove；It is additionally provided with use at the second fluorination stove on described first pipeline
Cooling water circulating device in cooling line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621016701.5U CN205990244U (en) | 2016-08-30 | 2016-08-30 | A kind of fluorination stove and twin furnace fluorinated systems |
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| CN201621016701.5U CN205990244U (en) | 2016-08-30 | 2016-08-30 | A kind of fluorination stove and twin furnace fluorinated systems |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120284A (en) * | 2017-12-18 | 2018-06-05 | 合肥海川石化设备有限公司 | A kind of new fluorination stove |
| CN110052204A (en) * | 2019-05-28 | 2019-07-26 | 中煤科工集团重庆研究院有限公司 | One kind being used for coal mine multiphase slurries mixed airflow agitating device |
| CN112758904A (en) * | 2019-11-22 | 2021-05-07 | 多氟多化工股份有限公司 | Preparation method of lithium difluorophosphate |
-
2016
- 2016-08-30 CN CN201621016701.5U patent/CN205990244U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120284A (en) * | 2017-12-18 | 2018-06-05 | 合肥海川石化设备有限公司 | A kind of new fluorination stove |
| CN110052204A (en) * | 2019-05-28 | 2019-07-26 | 中煤科工集团重庆研究院有限公司 | One kind being used for coal mine multiphase slurries mixed airflow agitating device |
| CN112758904A (en) * | 2019-11-22 | 2021-05-07 | 多氟多化工股份有限公司 | Preparation method of lithium difluorophosphate |
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Address after: 454191 Henan Province, Jiaozuo City Station area coke Rd Patentee after: Duofudo New Material Co.,Ltd. Address before: 454191, Feng County, Henan Province, Jiaozuo Feng Feng Chemical Industry Zone Patentee before: DO-FLUORIDE CHEMICALS Co.,Ltd. |
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| CP03 | Change of name, title or address |