CN217077814U - Device for preparing tungsten hexafluoride - Google Patents
Device for preparing tungsten hexafluoride Download PDFInfo
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- CN217077814U CN217077814U CN202220756397.7U CN202220756397U CN217077814U CN 217077814 U CN217077814 U CN 217077814U CN 202220756397 U CN202220756397 U CN 202220756397U CN 217077814 U CN217077814 U CN 217077814U
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Abstract
The utility model discloses a device for preparing tungsten hexafluoride relates to electron special gas production technical field, including container, negative pole unit, positive pole unit and DC power supply, the container is used for holding fluoride salt molten electrolyte, and the negative pole unit stretches into fluoride salt molten electrolyte, and the positive pole unit includes the positive pole body, and the positive pole body is made for tungsten metal, and the positive pole body stretches into fluoride salt molten electrolyte; DC power supply's negative pole is connected with the negative pole unit electricity, and DC power supply's positive pole is connected with positive pole unit electricity, the utility model discloses can make tungsten hexafluoride cost of preparation reduce, easy operation, safe and reliable.
Description
Technical Field
The utility model relates to an electron special type gas production technical field especially relates to a device for preparing tungsten hexafluoride.
Background
Tungsten hexafluoride (WF) 6 ) Is a colorless gas or a light yellow liquid,the solid is a deliquescent white crystal that is smoky in humid air. Tungsten hexafluoride is the only stable and industrially produced species among the fluorides of tungsten.
Currently, there are two common industrial methods for producing tungsten hexafluoride:
1. fluorine gas is used as a fluorinating agent to directly react with tungsten metal to prepare tungsten hexafluoride gas:
the method comprises the steps of preparing crude fluorine gas through electrolysis, removing a large amount of impurities such as hydrogen fluoride, nitrogen, carbon dioxide, metal particles and the like carried in the fluorine gas through adsorption, deep cooling or rectification processes, and reacting the purified fluorine gas with tungsten metal in a reactor at high temperature to synthesize the tungsten hexafluoride, wherein the chemical equation of the reaction is as follows: w +3F 2 →WF 6 。
2. Preparation of tungsten hexafluoride gas by using nitrogen trifluoride as fluorinating agent to react with tungsten metal
The method comprises the steps of introducing raw material gas nitrogen trifluoride and high-purity nitrogen into a high-temperature cracker according to the same volume ratio, cracking the nitrogen trifluoride in the cracker to generate fluorine gas, introducing the fluorine gas into a reactor to react with metal tungsten to generate tungsten hexafluoride, and liquefying and collecting the synthesized tungsten hexafluoride gas by using a low-temperature collector. Alternatively, the refined nitrogen trifluoride can be introduced into a reactor made of nickel or monel alloy and reacted directly with metallic tungsten at high temperature to obtain tungsten hexafluoride, the essence of which is still that fluorine gas reacts with tungsten metal, and the chemical equation of the reaction is: w +2NF 3 →WF 6 +N 2 。
Therefore, the tungsten hexafluoride production method commonly used in the industry at present has the following problems:
1. the fluorine-tungsten reaction is required to be carried out at high temperature, the reactor is made of special high-temperature-resistant and corrosion-resistant materials, the cost is high, and the reaction temperature is required to be increased in order to eliminate the influence of the tungsten oxide coating in the early stage of the fluorine-tungsten reaction. After the fluorine-tungsten reaction starts, a large amount of heat is released, the heat needs to be transferred in time, the temperature needs to be reduced, the operation is complex, special high-temperature-resistant materials are needed for heat conduction, and the cost is high;
2. fluorine needed in the fluorine-tungsten reaction is prepared by an electrolytic method, a large amount of impurities such as hydrogen fluoride gas, potassium hydrogen fluoride liquid and the like are often carried in fluorine gas prepared by electrolysis, and the fluorine gas is required to be firstly subjected to certain purification treatment measures to remove the carried impurities and then to be reacted with tungsten metal, so that the process is complex, the fluorine needed in the fluorine-tungsten reaction is the most active non-metal element and can be reacted with most metals and non-metals, and before the fluorine-tungsten reaction, the fluorine gas is required to be conveyed to a reactor through a pipeline or transferred to the reactor through a steel cylinder, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device for preparing tungsten hexafluoride to solve the problem that above-mentioned prior art exists, make tungsten hexafluoride cost of preparation reduce, easy operation, safe and reliable.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a device for preparing tungsten hexafluoride, including container, cathode unit, anode unit and DC power supply, the container is used for holding fluoride salt molten electrolyte, cathode unit is arranged in stretching into fluoride salt molten electrolyte, anode unit includes the anode body, the anode body is made for tungsten metal, and the anode body is arranged in stretching into fluoride salt molten electrolyte; the cathode of the direct current power supply is electrically connected with the cathode unit, and the anode of the direct current power supply is electrically connected with the anode unit.
Preferably, the container further comprises a cover body and a partition body, wherein the first end of the container is opened, and the cover body is used for forming a detachable fixed connection with the first end and closing the first end; one end of the separator is fixedly arranged on the cover body, the other end of the separator is used for extending into the fluoride salt molten electrolyte, and the separator is used for being arranged between the cathode unit and the anode unit.
Preferably, the cathode unit comprises a cathode body and a cathode conductor, one end of the cathode body is used for extending into the fluoride salt molten electrolyte, the other end of the cathode body is fixedly connected with one end of the cathode conductor, the other end of the cathode conductor is used for penetrating through the cover body and electrically connected with the negative electrode, and the cathode conductor is used for forming a detachable fixed connection with the cover body; the anode unit further comprises an anode conductor, one end of the anode body is used for extending into the fluoride salt molten electrolyte, the other end of the anode body is fixedly connected with one end of the anode conductor, the other end of the anode conductor is used for penetrating through the cover body and electrically connected with the anode, and the anode conductor is used for being fixedly connected with the cover body in a detachable mode.
Preferably, the container, the lid, the separator, and the cathode body are made of nickel.
Preferably, the anode body is in a long strip shape; the separator comprises a first annular cylinder body, the first annular cylinder body is sleeved outside the anode body, and a space is reserved between the first annular cylinder body and the anode body; the cathode body comprises a second annular cylinder body, the second annular cylinder body is sleeved outside the separator body, and a space is reserved between the second annular cylinder body and the separator body.
Preferably, the anode unit is provided with one anode unit, the cross section of the first annular cylinder is circular, and the cross section of the second annular cylinder is circular.
Preferably, the anode unit is provided with a plurality of anode units, the cross section of the first annular cylinder is square annular, and the cross section of the second annular cylinder is square annular.
Preferably, the cathode body is provided with electrolyte flow through holes, and the diameter of the electrolyte flow through holes is [10, 30] mm.
Preferably, the cover body is provided with a cathode inert gas inlet, a hydrogen outlet, a hydrogen fluoride gas inlet, an anode inert gas inlet and a tungsten hexafluoride outlet, the cathode inert gas inlet, the hydrogen outlet and the hydrogen fluoride gas inlet are all arranged between the cathode unit and the inner wall of the container, and the anode inert gas inlet and the tungsten hexafluoride outlet are all arranged between the anode unit and the separating body; the cover body is further provided with a cathode pressure monitoring port, an anode pressure monitoring port and a liquid level monitoring port, the cathode pressure monitoring port is formed between the cathode unit and the separating body and used for mounting a cathode pressure monitoring device, the anode pressure monitoring port is formed between the anode unit and the separating body and used for mounting an anode pressure monitoring device, and the liquid level monitoring port is formed between the cathode unit and the inner wall of the container and used for mounting the liquid level monitoring device.
Preferably, a cooling water jacket is fixedly arranged on the outer wall of the container and used for containing cooling water.
The utility model discloses for prior art gain following technological effect:
the utility model provides a device for preparing tungsten hexafluoride, through Hydrogen Fluoride (HF) in the electrolysis fluoride salt melting electrolyte, fluorine gas that near the positive pole body produced directly reacts with the positive pole body that tungsten metal made, generate gaseous tungsten hexafluoride, through electrolysis hydrogen fluoride production fluorine gas in the inside of container, fluorine gas is synchronous to react with the positive pole body that tungsten metal made and generates tungsten hexafluoride gas, disposable preparation tungsten hexafluoride, need not to change through the fluorine tungsten reactor again, tungsten oxide that exists on positive pole body top layer is under the hydrogen fluoride atmosphere of container inside simultaneously, directly react with hydrogen fluoride and generate tetrafluoro oxygen tungsten etc, fluorine gas and the tungsten metal direct contact that the electrolysis produced can normally react below 80 degrees centigrade and generate tungsten hexafluoride, need not to provide high temperature reaction environment, in addition, the heat of reaction can be derived through liquid electrolyte, need not to set up specific heat-conducting medium again additionally, the process is simpler and the operation is safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a device for preparing tungsten hexafluoride according to the present invention;
FIG. 2 is a schematic top view of the apparatus for preparing tungsten hexafluoride of FIG. 1;
fig. 3 is another schematic top view of the apparatus for preparing tungsten hexafluoride in fig. 1.
In the figure: 100-a device for preparing tungsten hexafluoride, 1-a container, 2-an anode body, 3-a cathode unit, 32-a cathode conductor, 4-a separator, 5-a clamping device, 6-a cooling water jacket, 7-a cover body, 8-a liquid level monitoring device, 9-a hydrogen fluoride gas inlet, 10-a cathode pressure monitoring device, 11-an anode pressure monitoring device, 12-an anode conductor, 13-an anode inert gas inlet, 14-a tungsten hexafluoride outlet, 15-a direct current power supply, 16-a cathode inert gas inlet, 17-a hydrogen outlet, 18-a cathode installation position and 19-an anode installation position.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a device for preparing tungsten hexafluoride to solve the problem that above-mentioned prior art exists, make tungsten hexafluoride cost of preparation reduce, easy operation, safe and reliable.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-3, the utility model provides a device 100 for preparing tungsten hexafluoride, including container 1, cathode unit 3, anode unit and dc power supply 15, container 1 is used for holding fluoride salt molten electrolyte, and cathode unit 3 is used for stretching into fluoride salt molten electrolyte, and the anode unit includes anode body 2, and anode body 2 is made for tungsten metal, and anode body 2 is used for stretching into fluoride salt molten electrolyte; the negative electrode of the dc power supply 15 can be electrically connected to the cathode unit 3, and the positive electrode of the dc power supply 15 can be electrically connected to the anode unit.
Therefore, the present invention provides an apparatus 100 for preparing tungsten hexafluoride, by electrolyzing Hydrogen Fluoride (HF) in fluoride salt melting electrolyte, fluorine gas generated near the anode body 2 directly reacts with the anode body 2 made of tungsten metal to generate gaseous tungsten hexafluoride, fluorine gas is generated by electrolyzing hydrogen fluoride inside the container 1, fluorine gas synchronously reacts with the anode body 2 made of tungsten metal to generate tungsten hexafluoride gas, tungsten hexafluoride is prepared at one time without conversion by a tungsten fluoride reactor, and compared with the prior art, the reaction of high purity fluorine gas and tungsten oxide generally needs to be performed at a high temperature of 230 to 400 ℃ (reaction formula: 2W + WO) 3 +6F 2 ＝3WOF 4 ) The utility model provides a tungsten oxide that is arranged in preparing tungsten hexafluoride's device 100 2 top layers of positive pole body exist can the direct reaction eliminate under the hydrogen fluoride atmosphere of container 1 inside, and fluorine gas and the tungsten metal direct contact that the electrolysis generated can normally react below 80 degrees centigrade and generate tungsten hexafluoride, need not provide the high temperature reaction environment again. The utility model provides a reaction equation for preparing in tungsten hexafluoride's device 100 is as follows:
the reaction formula of the area where the anode unit is located: 2F - -2e - ＝F 2 、3F 2 +W＝WF 6 ；
The reaction formula of the region in which the cathode unit 3 is located: 2H + +2e - ＝H 2 。
Wherein: in the hydrogen fluoride atmosphere, the reaction formula of tungsten oxide coating and hydrogen fluoride elimination is as follows:
4HF+WO 3 ＝WOF 4 +2H 2 O
in addition, the reaction heat can be conducted out through the liquid electrolyte, no special heat conducting medium is needed to be additionally arranged, the operation is simpler and safer compared with the conventional reaction process of fluorine gas or nitrogen trifluoride and tungsten metal, in the embodiment, the fluoride salt molten electrolyte is preferably fluoride salt molten electrolyte (KF. nHF) containing a mixture of potassium fluoride and hydrogen fluoride, and the KF. nHF temperature is preferably controlled between 75 ℃ and 120 ℃, the n value is between 1.8 and 3.2, the KF. nHF temperature is most preferably controlled between 80 ℃ and 110 ℃, and the n value is between 2.0 and 2.6.
Further, the apparatus 100 for preparing tungsten hexafluoride provided by the present invention further includes a cover 7 and a partition body 4, the first end of the container 1 is open, the cover 7 is used for forming a detachable fixed connection with the first end and can close the first end; one end of a separator 4 is fixedly provided on the cover body 7, the other end of the separator 4 is adapted to protrude into the fluoride salt molten electrolyte, and the separator 4 is adapted to be interposed between the cathode unit 3 and the anode unit, the separator 4 being capable of dividing the interior of the container 1 into a cathode region and an anode region, thereby separating the reaction product of the cathode from the reaction product of the anode.
Further, the cathode unit 3 includes a cathode body and a cathode conductor 32, one end of the cathode body is used for extending into the fluoride salt molten electrolyte, the other end of the cathode body is fixedly connected with one end of the cathode conductor 32, the other end of the cathode conductor 32 is used for penetrating through the cover 7 and electrically connected with the negative electrode, and the cathode conductor 32 is used for forming a detachable fixed connection with the cover 7; the anode unit further comprises an anode conductor 12, one end of the anode body 2 is used for extending into the fluoride salt molten electrolyte, the other end of the anode body 2 is fixedly connected with one end of the anode conductor 12, the other end of the anode conductor 12 is used for penetrating through the cover body 7 and is electrically connected with the anode, the anode conductor 12 is used for forming a detachable fixed connection with the cover body 7, specifically, a cathode installation position 18 and an anode installation position 19 are arranged on the cover body 7 and are respectively used for installing the cathode conductor 32 and the anode conductor 12, wherein preferably, tetrafluoro materials are arranged between the cathode conductor 32 and the cover body 7 and between the anode conductor 12 and the cover body 7 to realize electrical insulation, and the safety of the device is ensured; because in the electrolytic process, the positive pole body 2 is consumed constantly, when the anode voltage obviously risees or produces the anodic polarization, stop the electrolysis and change into new positive pole body 2, form the fixed connection that can dismantle with positive pole electric conductor 12 through clamping device 5 with positive pole body 2 to make things convenient for the change of positive pole body 2, specifically, clamping device 5 material can be red copper, nickel or mild steel, preferred red copper, clamping device 5 is the components of a whole that can function independently structure, including grip block and fixed plate, can be in the same place positive pole electric conductor 12 and positive pole body 2 are fixed, and simultaneously, clamping device 5 can also conduction current.
Further, the container 1, the cover 7, the separating body 4 and the cathode body are made of nickel, wherein the material of the container 1 can be low carbon steel, stainless steel, nickel, monel, hastelloy and the like, preferably nickel and monel, the material of the cover 7 can be low carbon steel, nickel, monel and the like, preferably nickel and monel, the material of the separating body 4 can be nickel, monel, hastelloy and the like, preferably monel, corrosion-resistant metal, preferably monel, and the material of the cathode body can be low carbon steel, monel or nickel metal, preferably nickel metal.
Further, the anode body 2 is in a strip shape; the separator 4 comprises a first annular cylinder body which is sleeved outside the anode body 2 and has a gap with the anode body 2; the cathode body comprises a second annular cylinder body which is sleeved outside the separator 4 and is spaced from the separator 4, wherein preferably, the anode body 2 is a cylindrical tungsten metal rod, and the purity of tungsten is more than 99.9%.
Further, the number of the anode units may be one or more, and when there is one anode unit, it is preferable that the cross section of the first annular cylinder is circular, the cross section of the second annular cylinder is circular, and the cross section of the container 1 is also circular, and more specifically, the number of the cathode conductors 32 is three and is symmetrically distributed about the anode units; when the anode unit is provided with a plurality of anode units, it is preferable that the cross section of the first annular cylinder is square annular, the cross section of the second annular cylinder is square annular, and the cross section of the container 1 is also square annular, and more specifically, the number of the cathode conductors 32 is set to four, and the cathode conductors are respectively distributed at four corners of the second annular cylinder.
Furthermore, the cathode body is provided with electrolyte flow through holes, the diameter of the electrolyte flow through holes is [10, 30] mm, the electrolyte flow through holes are uniformly distributed on the cathode body, wherein preferably, the total area of the electrolyte flow through holes accounts for 20% to 40% of the surface area of the cathode body, and the electrolyte can conveniently flow through.
Furthermore, a cathode inert gas inlet 16, a hydrogen outlet 17, a hydrogen fluoride gas inlet 9, an anode inert gas inlet 13 and a tungsten hexafluoride outlet 14 are formed in the cover body 7, the cathode inert gas inlet 16, the hydrogen outlet 17 and the hydrogen fluoride gas inlet 9 are all arranged between the cathode unit 3 and the inner wall of the container 1, the anode inert gas inlet 13 and the tungsten hexafluoride outlet 14 are all arranged between the anode unit and the partition body 4, wherein the inert gas can be nitrogen, helium, argon and the like, preferably nitrogen or helium, before the experiment, the inert gas is blown into the container 1 through the cathode inert gas inlet 16 and the anode inert gas inlet 13, the air in the container 1 can be replaced, the inert gas is blown into the container 1 through the cathode inert gas inlet 16 and the anode inert gas inlet 13 in the experiment process, and the negative pressure generated in the container 1 can be avoided, after the experiment, inert gas is blown into the container 1 through the cathode inert gas inlet 16 and the anode inert gas inlet 13, so that the reaction gas in the container 1 can be replaced; tungsten hexafluoride gas generated by reaction near the anode unit can leave the container 1 through the tungsten hexafluoride outlet 14 and enter the tungsten hexafluoride purification device, impurities such as fluorine gas, hydrogen fluoride and nitrogen gas entrained in the tungsten hexafluoride gas are removed, and finally a high-purity tungsten hexafluoride product with the purity of over 99.999 percent is obtained, wherein the tungsten hexafluoride purification device is an existing product; hydrogen generated by reaction near the cathode unit 3 can leave the container 1 through a hydrogen outlet 17 and enter a hydrogen purification device, and the hydrogen purification device is an existing product after entrained hydrogen fluoride is removed and is discharged at a high position; hydrogen fluoride gas is blown into the fluoride salt molten electrolyte in the container 1 through the hydrogen fluoride gas inlet 9, so that hydrogen fluoride consumed by reaction in the fluoride salt molten electrolyte can be supplemented; still seted up the cathode pressure monitoring mouth on the lid 7, anode pressure monitoring mouth and liquid level monitoring mouth, the cathode pressure monitoring mouth is seted up and is used for installing cathode pressure monitoring device 10 between cathode unit 3 and separator 4, the anode pressure monitoring mouth is seted up and is used for installing anode pressure monitoring device 11 between anode unit and separator 4, the liquid level monitoring mouth is seted up and is used for installing liquid level monitoring device 8 between the inner wall of cathode unit 3 and container 1, wherein, cathode pressure monitoring device 10 and anode pressure monitoring device 11 are the current product that can monitor and show pressure, liquid level monitoring device 8 can be the radar level gauge, floater level gauge or electrode type level switch etc. preferably use electrode type level switch.
Further, a cooling water jacket 6 is fixedly arranged on the outer wall of the container 1, the cooling water jacket 6 is used for containing cooling water, wherein the temperature of the cooling water is preferably controlled to be between 40 ℃ and 80 ℃, so that the reaction heat in the container 1 can be rapidly sent away, and the reaction is ensured to be stably carried out.
In the present embodiment, the diameter of the container 1 is 750 mm and the height is 700 mm; the second annular cylinder surrounds the anode unit, the diameter of the second annular cylinder is 300 mm, and the height of the second annular cylinder is 400 mm; the first annular cylinder is arranged between the anode unit and the second annular cylinder, the diameter of the first annular cylinder is 150 mm, and the height of the first annular cylinder is 280 mm; the anode body 2 had a diameter of 50 mm and a height of 550 mm. The inside of the container 1 is molten KF.nHF electrolyte, the temperature is controlled between 70 ℃ and 110 ℃, the value of n is between 2.0 and 2.6, and the liquid level height is 580 millimeters.
The process for producing tungsten hexafluoride gas using the apparatus 100 for producing tungsten hexafluoride in this example is as follows:
firstly, blowing nitrogen into the container 1, keeping the positive pressure in the cathode chamber and the anode chamber, and checking and processing the sealing condition of the cover body 7 and each connecting pipe and component to ensure no leakage.
And in the second step, the nitrogen is used for carrying out full nitrogen blowing replacement on the cathode chamber and the anode chamber in the container 1, and air in the cathode chamber and the anode chamber is blown and replaced.
And thirdly, starting the direct-current power supply 15 to start electrolysis, continuously flowing hydrogen out of the hydrogen outlet 17 to a special hydrogen treatment device, and continuously flowing tungsten hexafluoride gas out of the tungsten hexafluoride outlet 14 to a subsequent tungsten hexafluoride purification and collection device.
Fourthly, analyzing and detecting the components of the product gas in the tungsten hexafluoride gas outlet pipeline, wherein the analysis method comprises the following steps: the method comprises the steps of accurately collecting and measuring the amount of crude gas, removing hydrogen fluoride carried in the crude gas by adopting a fluoride salt adsorption column such as sodium fluoride/potassium fluoride and the like, converting fluorine gas carried in the crude gas into chlorine gas by using a sodium chloride or potassium chloride adsorption column, detecting each component by entering a chromatograph, and measuring an analysis result by volume ratio, wherein the content of tungsten hexafluoride is 70%, the content of fluorine gas is 8%, the content of HF is 15%, the content of nitrogen is 7% and the like.
The device 100 for preparing tungsten hexafluoride in the embodiment is used for producing tungsten hexafluoride gas, tungsten hexafluoride gas can be produced at one time, and the process operation is simple and safe.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. An apparatus for preparing tungsten hexafluoride, comprising: the device comprises a container, a cathode unit, an anode unit and a direct-current power supply, wherein the container is used for containing fluoride salt molten electrolyte, the cathode unit extends into the fluoride salt molten electrolyte, the anode unit comprises an anode body, the anode body is made of tungsten metal, and the anode body extends into the fluoride salt molten electrolyte; the cathode of the direct current power supply is electrically connected with the cathode unit, and the anode of the direct current power supply is electrically connected with the anode unit.
2. The apparatus for preparing tungsten hexafluoride of claim 1, wherein: the container also comprises a cover body and a partition body, wherein the first end of the container is opened, and the cover body is used for forming detachable fixed connection with the first end and closing the first end; one end of the separator is fixedly disposed on the cover body, the other end of the separator extends into the fluoride salt molten electrolyte, and the separator is disposed between the cathode unit and the anode unit.
3. The apparatus for preparing tungsten hexafluoride of claim 2, wherein: the cathode unit comprises a cathode body and a cathode conductor, one end of the cathode body extends into the fluoride salt molten electrolyte, the other end of the cathode body is fixedly connected with one end of the cathode conductor, the other end of the cathode conductor is used for penetrating through the cover body and electrically connected with the negative electrode, and the cathode conductor is used for forming a detachable fixed connection with the cover body; the anode unit further comprises an anode conductor, one end of the anode body extends into the fluoride salt molten electrolyte, the other end of the anode body is fixedly connected with one end of the anode conductor, the other end of the anode conductor is used for penetrating through the cover body and electrically connected with the anode, and the anode conductor is used for forming detachable fixed connection with the cover body.
4. The apparatus for preparing tungsten hexafluoride of claim 3, wherein: the container, the cover, the separator, and the cathode body are made of nickel.
5. The apparatus for preparing tungsten hexafluoride of claim 3, wherein: the anode body is in a strip shape; the separator comprises a first annular cylinder body, the first annular cylinder body is sleeved outside the anode body, and a space is reserved between the first annular cylinder body and the anode body; the cathode body comprises a second annular cylinder body, the second annular cylinder body is sleeved outside the separator body, and a space is reserved between the second annular cylinder body and the separator body.
6. The apparatus for preparing tungsten hexafluoride of claim 5, wherein: the anode unit is provided with one anode unit, the cross section of the first annular cylinder body is circular, and the cross section of the second annular cylinder body is circular.
7. The apparatus for preparing tungsten hexafluoride of claim 5, wherein: the anode unit is provided with a plurality of, the cross section of first annular barrel is square ring shape, the cross section of second annular barrel is square ring shape.
8. The apparatus for preparing tungsten hexafluoride of claim 5, wherein: the cathode body is provided with electrolyte flow through holes, and the diameter of each electrolyte flow through hole is [10, 30] mm.
9. The apparatus for preparing tungsten hexafluoride of claim 2, wherein: the cover body is provided with a cathode inert gas inlet, a hydrogen outlet, a hydrogen fluoride gas inlet, an anode inert gas inlet and a tungsten hexafluoride outlet, the cathode inert gas inlet, the hydrogen outlet and the hydrogen fluoride gas inlet are all arranged between the cathode unit and the inner wall of the container, and the anode inert gas inlet and the tungsten hexafluoride outlet are all arranged between the anode unit and the separating body; the cover body is further provided with a cathode pressure monitoring port, an anode pressure monitoring port and a liquid level monitoring port, the cathode pressure monitoring port is formed between the cathode unit and the separating body and used for mounting a cathode pressure monitoring device, the anode pressure monitoring port is formed between the anode unit and the separating body and used for mounting an anode pressure monitoring device, and the liquid level monitoring port is formed between the cathode unit and the inner wall of the container and used for mounting the liquid level monitoring device.
10. The apparatus for preparing tungsten hexafluoride of claim 1, wherein: and a cooling water jacket is fixedly arranged on the outer wall of the container and used for containing cooling water.
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