CN211947252U - Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery - Google Patents
Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery Download PDFInfo
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- CN211947252U CN211947252U CN202020257346.0U CN202020257346U CN211947252U CN 211947252 U CN211947252 U CN 211947252U CN 202020257346 U CN202020257346 U CN 202020257346U CN 211947252 U CN211947252 U CN 211947252U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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Abstract
The utility model relates to a field is retrieved to useless mercury catalyst, discloses a device that useless mercuric chloride catalyst fused salt electrolysis is regenerated and mercury is retrieved, and the device includes the material storehouse, the inner chamber top in material storehouse is equipped with height-adjustable's rabbling mechanism, still be equipped with heating mechanism and telescopic electrolysis mechanism in the material storehouse. The device's rabbling mechanism height-adjustable can rise the rabbling mechanism in order to break away from the material after the stirring, avoids producing the material in the material storehouse and disturbs, and telescopic electrolysis mechanism can satisfy the not co-altitude of material in the material storehouse, and the suitability is strong, and is easy and simple to handle, can realize carrying out mercury recovery and active carbon regeneration simultaneously to non-mercuric chloride catalyst, and is efficient.
Description
Technical Field
The utility model relates to a field is retrieved to useless mercury catalyst, concretely relates to device that useless mercuric chloride catalyst fused salt electrolysis is regenerated and mercury is retrieved.
Background
The mercury catalyst is an indispensable part for producing polyvinyl chloride by a calcium carbide method, and is used as a catalyst for synthesizing vinyl chloride by acetylene and hydrogen chloride gas in the process of not producing the polyvinyl chloride. The mercury catalyst is produced by taking activated carbon as a carrier and mercuric chloride as an active substance, and loading the mercuric chloride on the surface of the activated carbon. After the mercury catalyst is used for a certain period of time, the activity of the mercury catalyst is reduced and the mercury catalyst needs to be replaced, and the replaced waste mercury catalyst still contains 2-5% of mercuric chloride. Since mercuric chloride is extremely toxic, extremely volatile and easily soluble in water, if the replaced mercury catalyst is directly discarded or stacked, serious mercury pollution is caused and great potential safety hazards are caused.
According to the "treatment and disposal method for waste mercury catalyst" (GB/T36382-2008), distillation and oxygen-controlled dry distillation are mainly adopted for the harmless treatment of the waste mercury catalyst at present. The distillation method is to add quicklime, sodium hydroxide and the like to convert mercury in each valence state in the waste mercury catalyst into similar substances (most of which are mercury oxide) which are easy to decompose, volatilize and collect, the mercury oxide is heated and decomposed into elemental mercury and oxygen, and the elemental mercury vapor is quenched to realize the recovery of mercury in the waste mercury catalyst. However, the method does not realize the activation regeneration of the activated carbon, and due to the introduction of quicklime, sodium hydroxide and other substances in the pretreatment, a large amount of calcium carbonate, calcium oxide, sodium carbonate and other powders are attached to the surface of the waste mercury catalyst after the distillation process, so that the activated carbon is seriously inactivated, and the activated carbon is difficult to reuse. The oxygen-controlling dry distillation method is characterized in that mercury chloride is sublimated at high temperature, the coking temperature of the activated carbon is lower than the sublimation temperature of the mercury chloride, and the mercury chloride and the activated carbon can be simultaneously recovered under the inert gas atmosphere and negative pressure sealing conditions. However, the mixture of mercuric chloride vapor and mercury vapor is extremely corrosive, so that the existing metal/metal alloy material cannot be applied, and the industrial application of the metal/metal alloy material is limited.
In addition, the existing chemical method reactivates the activated carbon without separating the activated carbon from the mercuric chloride in the waste mercury catalyst, eliminates carbon deposit and catalyst poisoning, and realizes regeneration. For example, patent CN104138767A discloses a method for regenerating a waste mercuric chloride catalyst after three-stage activation, which comprises putting the waste mercuric chloride catalyst into a regeneration and regeneration activation furnace, carbonizing at low temperature of 100-. The method can effectively recycle the waste mercury catalyst, but has the problems of heating volatilization of mercury chloride, large consumption of chemical reagents and the like in the activation process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problems in the prior art and providing a device for the electrolysis regeneration and the mercury recovery of waste mercuric chloride catalyst fused salt.
In order to realize the above-mentioned purpose, the utility model provides a device that mercury dichloride catalyst fused salt electrolysis is regenerated and mercury is retrieved, the device include the material storehouse, the inner chamber top in material storehouse is equipped with height-adjustable's rabbling mechanism, still be equipped with heating mechanism and telescopic electrolysis mechanism in the material storehouse.
Preferably, the side wall of one side of the material bin is detachably connected with the main body of the material bin through a screw structure.
Preferably, a feeding room and a conveying pipe are sequentially arranged at the top end of the material bin, and the material bin and the feeding room are communicated with the conveying pipe.
Preferably, a sealing structure is arranged at the feeding port of the feeding room.
Preferably, the stirring mechanism comprises a motor located outside the feeding chamber, a shaft rod located inside the feeding pipe, a shaft telescopic rod sleeved outside the shaft rod, and a rotating blade located at the bottom of the shaft telescopic rod.
Preferably, the heating mechanism is located at the bottom of the inner cavity of the material bin, the heating mechanism comprises a heating cavity, a sleeve located in the heating cavity, a metal pipe located in the sleeve and an electromagnetic coil wound on the metal pipe, and a heat dissipation metal rod is arranged outside the heating cavity.
Preferably, the electrolysis mechanism comprises an electrode positioned in the material bin, an electric guide wire connected with the electrode, a telescopic structure used for controlling the length of the electric guide wire and a power supply connected with the electric guide wire;
preferably, a weight measuring instrument is arranged on the electric conduction wire connected with the cathode of the electrode, and the weight measuring instrument is positioned on the outer side of the material bin.
Preferably, extending structure includes the control scheme of regulating chamber and installation in the lateral wall of regulating chamber, the electricity seal wire is worn to locate in the regulating chamber, the electricity seal wire is located the part in the regulating chamber is the heliciform, be equipped with the mechanical bar in the regulating chamber, the outside of regulating chamber is equipped with flexible button, the mechanical bar distributes the both sides of electricity seal wire.
Through the above technical scheme of the utility model, the utility model discloses an among the device that useless mercuric chloride catalyst fused salt electrolysis regeneration and mercury were retrieved, the rabbling mechanism height-adjustable can rise the rabbling mechanism in order to break away from the material after the stirring, avoids producing the material in the material storehouse and disturbs, and telescopic electrolysis mechanism can satisfy the not co-altitude of material in the material storehouse, and the suitability is strong, and is easy and simple to handle, can realize carrying out mercury recovery and active carbon regeneration simultaneously to non-mercuric chloride catalyst, and is efficient.
In a preferred embodiment, the sealing structure of the utility model can improve the sealing performance of the material bin, effectively prevent the material from leaking, and after the material in the material bin is electrolyzed, the screw structure can be opened to take out the material for separation of activated active carbon and molten salt, so that the operation is simple and convenient; the weight measuring instrument can judge whether mercury on the electrode is electrolyzed or not through the change of the weight, and the progress of the electrolytic reaction is observed; the heating mechanism adopts an electromagnetic heating mode, so that the heat efficiency is high, the heat effectively heats the molten salt, and the experimental period is shortened.
Further advantages of the invention, as well as the technical effects of preferred embodiments, will be further explained in the following detailed description.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery in the utility model;
FIG. 2 is a heating mechanism in the apparatus for molten salt electrolysis regeneration and mercury recovery of the waste mercury chloride catalyst shown in FIG. 1;
FIG. 3 is a telescopic structure of the device for the molten salt electrolysis regeneration and mercury recovery of the waste mercury chloride catalyst shown in FIG. 1.
Description of the reference numerals
1 Material storehouse 2 feed chamber
3 sealing structure 4 shaft lever
5 conveying pipe 6-shaft telescopic rod
7 power supply 8 computer
9 telescopic structure 10 weight measuring instrument
11 cylinder 12 conductive wire
13 electrode 14 motor
15 rotating blade 16 screw mechanism
17 heating mechanism 18 telescopic button
19 mechanical bar 20 control circuit
21 heat dissipation metal bar 22 electromagnetic coil
23 casing 24 metal pipe
25 temperature control feedback line 26 heater
Detailed Description
The following describes the embodiments of the present invention in detail. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In the description of the present invention, it is to be noted that unless otherwise explicitly stated or limited, the terms "connected" and "mounted" are to be interpreted broadly, e.g., the connection may be direct or indirect via an intermediate medium, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a device that useless mercuric chloride catalyst fused salt electrolysis is regenerated and mercury is retrieved, as shown in figure 1, the device includes material storehouse 1, and the inner chamber top of material storehouse 1 is equipped with height-adjustable's rabbling mechanism, still is equipped with heating mechanism 17 and telescopic electrolysis mechanism in the material storehouse 1. When the device is used, the fused salt is added into the material bin 1, the heating mechanism 17 is opened to heat the fused salt to form fused salt solution, then the waste mercuric chloride catalyst is added into the material bin 1, the stirring mechanism is lowered to be immersed into the material, and after the material in the material bin 1 is fully and uniformly mixed by the stirring mechanism, the stirring mechanism is lifted to be separated from the material; and electrolyzing the materials by using an electrolysis mechanism, taking the electrolyte out after the electrolysis is finished, and performing solid-liquid separation to respectively obtain activated carbon and recover the metallic mercury. The device has strong applicability, simple and convenient operation, high efficiency and can realize mercury recovery and activated carbon regeneration of the non-mercuric chloride catalyst.
According to the utility model discloses a preferred embodiment, one side lateral wall of material storehouse 1 can be dismantled with the main part of material storehouse 1 through screw structure 16 and be connected. After the electrolysis of the material in the material bin 1 is finished, the screw structure 16 can be opened to take out the material for separation of activated carbon and molten salt, and the operation is simple and convenient.
According to another preferred embodiment of the utility model, the top end of the material bin 1 is provided with a feeding room 2 and a material conveying pipe 5 in sequence, and both the material bin 1 and the feeding room 2 are communicated with the material conveying pipe 5; further, the feed inlet of 2 is equipped with seal structure 3 between the feeding, and seal structure 3 can improve the sealing performance in material storehouse 1, effectively prevents the material leakage.
The utility model discloses do not have special restriction to rabbling mechanism's structure, the rabbling mechanism as long as can carry out intensive mixing with the material in the material storehouse 1 can. Preferably, the stirring mechanism comprises a motor 14 positioned outside the feeding chamber 2, a shaft rod 4 positioned in the feeding pipe 5, a shaft telescopic rod 6 sleeved outside the shaft rod 4 and a rotating blade 15 positioned at the bottom of the shaft telescopic rod 6. When the stirring mechanism is used, the shaft telescopic rod 6 is extended to enable the rotating blades 15 to be immersed in materials, the motor 14 is utilized to drive the rotating blades 15 to rotate, the materials in the material bin 1 are stirred, and the rotating blades 15 are lifted to the top of the material bin 1 through the shortened shaft telescopic rod 6 after the materials are uniformly mixed.
The utility model discloses do not have special restriction to the structure of heating mechanism, heating mechanism as long as can heat the material in the material storehouse 1 can. Preferably, as shown in fig. 2, the heating mechanism 17 is located at the bottom of the inner cavity of the material bin 1, the heating mechanism 17 comprises a heating cavity, a sleeve 23 located in the heating cavity, a metal tube 24 located in the sleeve 23, and an electromagnetic coil 22 wound on the metal tube 24, and a heat dissipation metal rod 21 is arranged outside the heating cavity. The circuit voltage frequency is changed by controlling the heater 26, so that the current changing at a high speed forms a magnetic field changing at a high speed through the electromagnetic coil 22, the magnetic line of force cuts the metal tube 24 to realize electromagnetic heat generation, the heat is transferred to the heat dissipation metal rod 21 through heat radiation and heat convection, and the heating of the material in the material bin 1 by the heating mechanism 17 is realized. In addition, a temperature control feedback circuit 25 can be arranged between the heater 26 and the sleeve 23, so that constant temperature timing of heating is realized, and smooth and safe operation of the heating mechanism 17 is ensured. Compared with common resistance heating, the electromagnetic heating has high thermal efficiency (up to more than 95 percent), so that the heat can effectively heat the molten salt and shorten the experimental period.
The utility model discloses do not have special restriction to the structure of electrolysis mechanism, electrolysis mechanism as long as can carry out the electrolysis to the material in the material storehouse 1 can. Preferably, the electrolysis mechanism comprises an electrode 13 positioned in the material bin 1, an electric conducting wire 12 connected with the electrode 13, a telescopic structure 9 used for controlling the length of the electric conducting wire 12 and a power supply 7 connected with the electric conducting wire 12. Wherein, the voltage and current frequency of the power supply 7 is controlled by the computer 8, the current reaches the electrode 13 through the telescopic structure 9 and the conductive wire 12 to realize electrolysis, and the electrode 13 is arranged into a perforated cylindrical sheet to increase the contact area between the electrode 13 and the material.
Furthermore, a weight measuring instrument 10 is arranged on the electric conduction wire 12 connected with the cathode of the electrode 13, and the weight measuring instrument 10 is positioned at the outer side of the material bin 1. The weight measuring instrument 10 can judge whether mercury is electrolyzed on the electrode 13 through the change of the weight. In addition, a cylinder 11 for taking and placing the electrode 13 can be arranged on the material bin 1, and the diameter of the electrode 13 is slightly smaller than that of the cylinder 11, so that the electrode 13 can be conveniently replaced.
Further preferably, as shown in fig. 3, the telescopic structure 9 includes an adjusting chamber and a control circuit 20 installed in a side wall of the adjusting chamber, the electric conducting wire 12 is inserted into the adjusting chamber, a portion of the electric conducting wire 12 located in the adjusting chamber is spiral, a mechanical rod 19 is disposed in the adjusting chamber, a telescopic button 18 is disposed outside the adjusting chamber, and the mechanical rod 19 is distributed on two sides of the electric conducting wire 12. The tightness of the control circuit 20 is adjusted by moving the telescopic button 18 left and right, so that the mechanical rod 19 swings up and down, the length of the conductive wire 12 in the material bin 1 is further controlled, and finally the relative distance between the electrode 13 and the material is adjusted.
According to a most preferred embodiment of the present invention, as shown in fig. 1, the material container comprises a material bin 1, wherein a feeding chamber 2 and a material conveying pipe 5 are sequentially arranged at the top end of the material bin 1, the material bin 1 and the feeding chamber 2 are both communicated with the material conveying pipe 5, and a sealing structure 3 is arranged at a feeding port of the feeding chamber 2; the side wall of one side of the material bin 1 is detachably connected with the main body of the material bin 1 through a screw structure 16. The stirring mechanism comprises a motor 14 positioned outside the feeding room 2, a shaft lever 4 positioned in the feeding pipe 5, a shaft telescopic rod 6 sleeved outside the shaft lever 4 and a rotating blade 15 positioned at the bottom of the shaft telescopic rod 6; the heating mechanism 17 is positioned at the bottom of the inner cavity of the material bin 1, the heating mechanism 17 comprises a heating cavity, a sleeve 23 positioned in the heating cavity, a metal pipe 24 positioned in the sleeve 23 and an electromagnetic coil 22 wound on the metal pipe 24, a heat dissipation metal rod 21 is arranged outside the heating cavity, and a temperature control feedback circuit 25 is arranged between the heater 26 and the sleeve 23; the electrolysis mechanism comprises an electrode 13 positioned in the material bin 1, an electric conducting wire 12 connected with the electrode 13, a telescopic structure 9 used for controlling the length of the electric conducting wire 12 and a power supply 7 connected with the electric conducting wire 12, wherein a weight measuring instrument 10 is arranged on the electric conducting wire 12 connected with the cathode of the electrode 13, and the weight measuring instrument 10 is positioned on the outer side of the material bin 1; the telescopic structure 9 comprises an adjusting chamber and a control circuit 20 installed in the side wall of the adjusting chamber, the electric conducting wire 12 is arranged in the adjusting chamber in a penetrating mode, the part, located in the adjusting chamber, of the electric conducting wire 12 is in a spiral shape, a mechanical rod 19 is arranged in the adjusting chamber, a telescopic button 18 is arranged on the outer side of the adjusting chamber, and the mechanical rod 19 is distributed on two sides of the electric conducting wire 12. The process for carrying out the waste mercury chloride catalyst molten salt electrolysis regeneration and mercury recovery by using the device can comprise the following steps:
1. adding the molten salt into the material bin 1 from the feeding room 2 through the conveying pipe 5, closing the sealing structure 3, and opening the heater 26 of the heating mechanism 17 to heat the molten salt to form a molten salt solution;
2. opening the sealing structure 3 to add the waste mercuric chloride catalyst into the material bin 1 from the feeding room 2, extending the shaft telescopic rod 6 to immerse the rotating blade 15 into the material, opening the motor 14 to drive the rotating blade 15 to rotate, fully and uniformly mixing the material in the material bin 1, closing the motor 14, and shortening the shaft telescopic rod 6 to lift the rotating blade 15 to the top of the material bin 1;
3. the length of the conductive wire 12 in the material bin 1 is adjusted through the telescopic button 18, so that the electrode 13 enters the material, the power supply 7 is turned on to adjust to proper voltage and current, the material is electrolyzed, and the electrolysis condition in the material bin 1 is observed through the weight measuring instrument 10;
4. and after the electrolysis is finished, the power supply 7 is turned off, the screw structure 16 is opened, the electrode 13 is taken out to collect mercury, the electrolyte is taken out to carry out solid-liquid separation to respectively obtain activated carbon, and the molten salt is recovered.
Can see by the above description, the utility model discloses an among the device that useless mercuric chloride catalyst fused salt electrolysis regeneration and mercury were retrieved, the rabbling mechanism height-adjustable can rise the rabbling mechanism in order to break away from the material after the stirring, avoids producing the material interference in the material storehouse 1, and telescopic electrolysis mechanism can satisfy the not co-altitude of material in the material storehouse 1, and the suitability is strong, and is easy and simple to handle, can realize carrying out mercury recovery and active carbon regeneration simultaneously to non-mercuric chloride catalyst, and is efficient.
In a preferred embodiment, the sealing structure 3 of the present invention can improve the sealing performance of the material bin 1, effectively prevent the leakage of the material, and after the electrolysis of the material in the material bin 1 is finished, the screw structure 16 can be opened to take out the material for the separation of activated carbon and molten salt, so that the operation is simple and convenient; the weight measuring instrument 10 can judge whether mercury is electrolyzed on the electrode 13 through the change of the weight and observe the progress of the electrolytic reaction; the heating mechanism 17 adopts an electromagnetic heating mode, so that the heat efficiency is high, the heat can effectively heat the molten salt, and the experimental period is shortened.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. In the technical idea scope of the present invention, it can be right to the technical solution of the present invention perform multiple simple modifications, including each technical feature combined in any other suitable manner, these simple modifications and combinations should be regarded as the disclosed content of the present invention, and all belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a device of useless mercuric chloride catalyst fused salt electrolysis regeneration and mercury recovery, its characterized in that, the device includes material storehouse (1), the inner chamber top of material storehouse (1) is equipped with height-adjustable's rabbling mechanism, still be equipped with heating mechanism (17) and telescopic electrolysis mechanism in the material storehouse (1).
2. The device according to claim 1, characterized in that the side wall of one side of the material bin (1) is detachably connected with the main body of the material bin (1) through a screw structure (16).
3. The device according to claim 1, characterized in that a feeding chamber (2) and a conveying pipe (5) are sequentially arranged at the top end of the material bin (1), and the material bin (1) and the feeding chamber (2) are communicated with the conveying pipe (5).
4. The device according to claim 3, characterized in that a sealing structure (3) is provided at the inlet of the inlet chamber (2).
5. The device according to claim 3, characterized in that the stirring mechanism comprises a motor (14) located outside the feeding chamber (2), a shaft rod (4) located inside the feeding pipe (5), a shaft extension rod (6) sleeved outside the shaft rod (4), and a rotating blade (15) located at the bottom of the shaft extension rod (6).
6. The device according to any one of claims 1 to 5, characterized in that the heating mechanism (17) is located at the bottom of the inner cavity of the material bin (1), the heating mechanism (17) comprises a heating cavity, a sleeve (23) located in the heating cavity, a metal pipe (24) located in the sleeve (23) and an electromagnetic coil (22) wound on the metal pipe (24), and a heat dissipation metal rod (21) is arranged outside the heating cavity.
7. The device according to any one of claims 1 to 5, characterized in that the electrolysis mechanism comprises an electrode (13) located in the material bin (1), an electrical guide wire (12) connected to the electrode (13), a telescopic structure (9) for controlling the length of the electrical guide wire (12), and a power source (7) connected to the electrical guide wire (12).
8. The device according to claim 7, characterized in that a weight measuring instrument (10) is arranged on an electric guide wire (12) connected with the cathode of the electrode (13), and the weight measuring instrument (10) is positioned outside the material bin (1).
9. The device according to claim 7, characterized in that the telescopic structure (9) comprises an adjusting chamber and a control circuit (20) installed in a side wall of the adjusting chamber, the electric guide wire (12) is arranged in the adjusting chamber in a penetrating manner, a part of the electric guide wire (12) located in the adjusting chamber is in a spiral shape, a mechanical rod (19) is arranged in the adjusting chamber, a telescopic button (18) is arranged outside the adjusting chamber, and the mechanical rod (19) is distributed on two sides of the electric guide wire (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020257346.0U CN211947252U (en) | 2020-03-04 | 2020-03-04 | Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020257346.0U CN211947252U (en) | 2020-03-04 | 2020-03-04 | Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery |
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| CN211947252U true CN211947252U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020257346.0U Expired - Fee Related CN211947252U (en) | 2020-03-04 | 2020-03-04 | Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304698A (en) * | 2020-03-04 | 2020-06-19 | 中南大学 | Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery |
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2020
- 2020-03-04 CN CN202020257346.0U patent/CN211947252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304698A (en) * | 2020-03-04 | 2020-06-19 | 中南大学 | Device for waste mercuric chloride catalyst molten salt electrolysis regeneration and mercury recovery |
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