Air pollution detection equipment for tantalum metal extraction and preparation method of extraction agent

Abstract

The invention provides air pollution detection equipment for tantalum metal extraction and a preparation method of an extraction agent, and relates to the technical field of gas detection, the air pollution detection equipment comprises two mounting racks, an adjusting mechanism and a detection mechanism; the adjusting mechanism comprises a transverse plate, the transverse plate is fixedly arranged on the opposite sides of the two mounting frames, and two sliding rails are fixedly arranged on the front face of the transverse plate. According to the scheme, a bidirectional threaded lead screw is controlled to rotate forwards and backwards through an adjusting motor, a mounting base is driven to move leftwards and rightwards under the action of a threaded block, and the mounting base drives a detection box to move leftwards and rightwards through a connecting support, so that the working position of a detection assembly is adjusted, and the detection assembly can cover a larger space area; the detection assembly is used for continuous sampling, after data of multiple point positions are averaged, single-point errors can be reduced, and when the detection assembly detects that the concentration of HF or SO2 gas is abnormally increased, a leakage source can be accurately positioned by adjusting the mounting base back and forth.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to an air pollution detection device for tantalum metal extraction and a method for preparing an extractant. Background Art

[0002] Tantalum's unique properties make it crucial for use in the steel, electronics, and other high-tech industries, primarily in the production of capacitors and semiconductors for electronic devices. During tantalum extraction, tantalum exists primarily in the ore as oxides or tantalum-niobium complexes. Acid dissolution is required to convert the solid ore into a liquid phase, creating conditions for subsequent extraction and separation. This system is a classic industrial method for extracting tantalum from tantalum ores, balancing the efficiency of tantalum dissolution with the feasibility of subsequent processes.

[0003] In related technologies, the use of specific extractants in sulfuric acid systems for tantalum extraction can decompose and produce highly toxic gases such as HF and SO₂, necessitating rigorous gas detection. However, some existing air pollution detection equipment is difficult to flexibly adjust during use, and most are fixedly installed in a specific location. Due to the diffusive nature of gases, fixed installations create blind spots and delayed responses, hindering the rapid and effective initiation of protective measures.

[0004] Therefore, it is necessary to provide an air pollution detection device for tantalum metal extraction and a method for preparing an extractant to solve the above technical problems. Summary of the Invention

[0005] The present invention provides an air pollution detection device for tantalum metal extraction and a method for preparing an extractant, which solves the technical problem in the related art that some existing air pollution detection devices are not convenient for flexibly adjusting the detection position during use.

[0006] In order to solve the above technical problems, the present invention provides an air pollution detection device for tantalum metal extraction, which includes two mounting frames, an adjustment mechanism and a detection mechanism; Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The swing arm is connected to the swing arm by a threaded connecting strip which is cooperatively connected with the hook portion. The detection mechanism includes a connecting bracket and a detection box. The connecting bracket is fixedly arranged on the front side of the mounting base. The front side of the connecting bracket is fixedly connected to the detection box. A detection component is arranged on the inner side of the detection box. An electrochemical sensor is arranged inside the detection component for real-time monitoring of HF or SO2 gas in the air.

[0007] Preferably, a driving motor is provided on the top of the detection box, a rotating shaft is fixedly provided at the output end of the driving motor, two exhaust fans are fixedly provided on the surface of the rotating shaft, the two exhaust fans are respectively located at the top and bottom of the detection component, and a dustproof plate is provided at the bottom of the detection box.

[0008] Preferably, a sliding groove for use with the threaded block is provided on the inner side of the transverse plate to provide the threaded block with left and right sliding motion, and a threaded groove for use with a bidirectional threaded screw is provided on the inner side of the threaded block.

[0009] Preferably, a processing mechanism is fixedly provided at the bottom of the left mounting bracket, and the processing mechanism includes a mounting bracket fixedly provided on the rear side of the bottom of the left mounting bracket, the inner side of the mounting bracket is vertically rotatably connected to a threaded screw, the surface of the threaded screw is threadedly connected to a screw block, and the top of the mounting bracket is provided with a processing motor for driving the threaded screw to rotate, and a guide rail is fixedly provided at the bottom of the left mounting bracket, and four adjustment plates are slidably connected to the surface of the guide rail, and the left side of the mounting bracket and the adjustment plate is rotatably connected to a shearing bracket, the surface of the bottom of the shearing bracket is slidably connected to the inner side of the mounting bracket and the adjustment plate, and the bottom of the rear side of the shearing bracket is rotatably connected to the screw block; The processing mechanism is provided with two groups in mirror image on the left and right sides. The inner sides of the two opposite adjustment plates are connected with liquid outlet pipes by transverse rotation. The surfaces of the four liquid outlet pipes are all connected with atomizing nozzles.

[0010] Preferably, both ends of the bidirectional threaded screw are key-connected with an adjustment mechanism, and the adjustment mechanism includes a driving gear whose key is connected to both ends of the bidirectional threaded screw, and sliding rails are fixed on the opposite sides of the two mounting frames, and the inner sides of the two sliding rails are slidably connected with adjustment tooth plates, and the two adjustment tooth plates are respectively engaged with the two driving gears, and both ends of the liquid outlet pipe are fixed with adjustment gears.

[0011] Preferably, a cleaning mechanism is fixedly provided at the bottom of the horizontal plate, and the cleaning mechanism includes a rotating seat fixedly provided at the bottom of the horizontal plate, a rotating rod is rotatably connected to the inner side of the rotating seat, a cleaning brush is fixedly provided on the surface of the rotating rod, a passive gear is fixedly provided on the surface of the rotating rod, a cleaning bracket is fixedly provided on the back of the detection box, and an active gear plate is fixedly provided at the bottom of the cleaning bracket.

[0012] Preferably, the inner sides of the bottoms of the four adjustment plates are slidably connected with guide rods, the rear ends of the guide rods are fixedly connected to the mounting brackets, the front ends of the guide rods are fixedly provided with connecting frames, and the tops of the connecting frames are fixedly connected to the bottoms of the mounting frames.

[0013] Preferably, three suspension rods are respectively provided on the top of the two mounting frames, and two sound and light alarms are respectively provided on the top of the two mounting frames.

[0014] A method for preparing an extractant for tantalum metal extraction comprises the following steps: Step S1, preparation of dibutyl (4-bromobutyl)phosphonate: S11, weighing a certain amount of purified dibromobutane and tributyl phosphite; S12, adding an appropriate amount of solvent to the reaction vessel and mixing thoroughly; S13, placing the reaction vessel into a microwave reactor to start the reaction and monitor in real time; S14, after the reaction solution is cooled to room temperature, it is transferred to a separatory funnel for washing, and the organic phase is collected by standing and separating; S15, the organic phase is quickly dried by passing through an anhydrous magnesium sulfate column, and the filtrate is subjected to a rotary evaporator to remove the solvent to obtain an intermediate product; Step S2, preparing quaternary ammonium salt: S21. Under nitrogen protection, add the above-prepared dibutyl (4-bromobutyl)phosphonate and tributylamine to a three-necked flask, and then add a solvent; S22, installing a condensing device, and performing heating reflux reaction on a magnetic stirrer; S23, the reaction solution after the reaction is filtered under reduced pressure, the solid product is collected, and the solid product is washed and dried to obtain a quaternary ammonium salt product; Step S3, preparing an extractant: S31, dissolving the quaternary ammonium salt prepared above and lithium bis(trifluoromethanesulfonyl)imide (LiNTf2) in a solvent in a certain proportion, adding the mixture to a round-bottom flask, and stirring to react; S32. After the reaction is completed, the reaction solution is transferred to a separatory funnel for washing by shaking, and after standing for stratification, the organic phase is separated; S33, repeatedly washing the organic phase with deionized water; S34, drying the organic phase with anhydrous magnesium sulfate, filtering, and transferring the filtrate to a round-bottom flask; S35, using a rotary evaporator to remove the solvent under reduced pressure to obtain a crude product; S36. The crude product is placed in a vacuum drying oven and dried to a constant weight to obtain a pure ionic liquid having phosphonate functionalization.

[0015] Compared with related technologies, the air pollution detection equipment for tantalum metal extraction and the preparation method of the extractant provided by the present invention have the following beneficial effects: By adjusting the motor to control the forward and reverse rotation of the bidirectional threaded screw, the mounting base is driven to move left and right under the action of the threaded block. The mounting base drives the detection box to move left and right through the connecting bracket, thereby adjusting the working position of the detection component so that the detection component can cover a larger spatial area. By moving the mounting base at a constant speed and using the detection component to continuously sample and average the data of multiple points, the single-point error can be reduced. When the detection component detects an abnormal increase in the concentration of HF or SO2 gas, the leak source can be accurately located by adjusting the mounting base back and forth. When the HF or SO2 gas concentration in a certain area suddenly increases, the controller can automatically increase the residence detection time in that area, improve the warning sensitivity, and facilitate the rapid and effective initiation of protective measures. The two exhaust fans are driven by the motor to rotate and air is pumped into the detection component, which can provide a stable exhaust flow rate to avoid unstable gas volume entering the sensor due to natural airflow fluctuations. The electrochemical sensor is then used to detect HF or SO2 gas in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 The best structural diagram provided by the present invention; Figure 2 A schematic structural diagram of a right view provided by the present invention; Figure 3 A schematic structural diagram of the adjustment mechanism and detection mechanism provided by the present invention; Figure 4 for Figure 3 A schematic structural diagram of the mounting base shown; Figure 5 for Figure 3 A schematic structural diagram of a rear view of the horizontal plate shown; Figure 6 A schematic diagram of the state in which the bidirectional threaded screw provided by the present invention rotates to drive the threaded block and the mounting seat to move; Figure 7 for Figure 3 A schematic structural diagram of a cross-sectional view of the detection box shown; Figure 8 A schematic structural diagram of the processing mechanism provided by the present invention; Figure 9A schematic structural diagram of the adjustment mechanism provided by the present invention; Figure 10 for Figure 9 The enlarged structural diagram of point A is shown; Figure 11 A schematic structural diagram of the cleaning mechanism provided by the present invention; Figure 12 for Figure 11 The enlarged structural diagram of point B is shown; Figure 13 This is a schematic diagram of the state in which the mounting base provided by the present invention moves left and right, and the driven gear and the cleaning brush rotate under the action of the active gear plate; Figure 14 This is a flow chart of the method for preparing the extractant provided by the present invention.

[0018] Description of Figure Numbers: 1. Mounting frame; 2. Adjustment mechanism; 21. Horizontal plate; 22. Slide rail; 23. Sliding seat; 24. Mounting seat; 25. Threaded block; 26. Bidirectional threaded screw; 27. Adjustment motor; 3. Detection mechanism; 31. Connecting bracket; 32. Detection box; 33. Detection assembly; 34. Drive motor; 35. Exhaust fan; 36. Dustproof plate; 4. Processing mechanism; 41. Mounting bracket; 42. Screw rod; 43. Screw block; 44. Guide rail; 45. Adjustment plate; 46. Shearing frame; 47. Liquid outlet pipe; 48. Atomizing nozzle; 49. Processing motor; 5. Adjustment mechanism; 51. Driving gear; 52. Sliding rail; 53. Adjusting tooth plate; 54. Adjusting gear; 6. Cleaning mechanism; 61. Rotating seat; 62. Rotating rod; 63. Cleaning brush; 64. Passive gear; 65. Cleaning bracket; 66. Active gear plate; 7. Guide rod; 8. Connecting frame; 9. Hoisting rod; 10. Sound and light alarm.

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention provides an air pollution detection device for tantalum metal extraction and a method for preparing an extractant.

[0022] First embodiment: See also Figures 1 to 7 , an air pollution detection device for tantalum metal extraction, comprising two mounting frames 1, an adjustment mechanism 2 and a detection mechanism 3; The adjusting mechanism 2 includes a transverse plate 21, which is fixed to one side opposite to the two mounting brackets 1. Two slide rails 22 are fixed to the front of the transverse plate 21. The surfaces of the two slide rails 22 are slidably connected to two sliding seats 23. The fronts of the four sliding seats 23 are fixed to mounting seats 24. A threaded block 25 is slidably connected to the inner side of the transverse plate 21. The front side of the threaded block 25 is fixedly connected to the mounting seat 24. The inner side of the threaded block 25 is threadedly connected to a bidirectional threaded screw 26. Both ends of the bidirectional threaded screw 26 are rotatably connected to the two mounting brackets 1. An adjusting motor 27 for driving the bidirectional threaded screw 26 to rotate is provided on the right side of the mounting bracket 1 on the right side. Please combine Figure 3 and Figure 6 : Start the adjustment motor 27, the adjustment motor 27 rotates to drive the bidirectional threaded screw 26 to rotate, the bidirectional threaded screw 26 rotates to drive the threaded block 25 to move leftward, the threaded block 25 moves and then drives the mounting seat 24 to move leftward, so that the four sliding seats 23 slide leftward on the surface of the slide rail 22; Furthermore, the adjusting motor 27 is started, and the bidirectional threaded screw 26 is driven to rotate in the opposite direction by the reverse rotation of the adjusting motor 27. The bidirectional threaded screw 26 then drives the threaded block 25 to move rightward. The rightward movement of the threaded block 25 drives the mounting seat 24 to move rightward, so that the four sliding seats 23 move rightward on the surface of the slide rail 22. Preferably, the regulating motor 27 is electrically connected to a controller, which is used to control the operation mode and trajectory of the device; The detection mechanism 3 includes a connecting bracket 31 and a detection box 32. The connecting bracket 31 is fixedly mounted on the front side of the mounting base 24. The front side of the connecting bracket 31 is fixedly connected to the detection box 32. A detection component 33 is provided inside the detection box 32. An electrochemical sensor is provided inside the detection component 33 for real-time monitoring of HF or SO2 gas in the air. A drive motor 34 is provided on the top of the detection box 32. A rotating shaft is fixedly provided at the output end of the drive motor 34. Two exhaust fans 35 are fixedly provided on the surface of the rotating shaft. The two exhaust fans 35 are respectively located at the top and bottom of the detection assembly 33. A dustproof plate 36 is provided at the bottom of the detection box 32. Please combine Figure 6 and Figure 7: When the bidirectional threaded screw 26 rotates through the threaded block 25 to drive the mounting base 24 to move, the mounting base 24 will simultaneously drive the detection box 32 to move through the connecting bracket 31, thereby adjusting the working position of the detection assembly 33; Furthermore, the drive motor 34 is started, and the rotation of the drive motor 34 drives the two exhaust fans 35 to rotate. The two exhaust fans 35 pump air into the detection assembly 33, and the electrochemical sensor is used to detect HF or SO2 gas in the air. When HF or SO2 gas is detected in the air, the controller activates the sound and light alarm 10 to alert the staff. The inner side of the transverse plate 21 is provided with a sliding groove for use with the threaded block 25 to provide the threaded block 25 with left and right sliding motion. The inner side of the threaded block 25 is provided with a threaded groove for use with the bidirectional threaded screw 26.

[0023] In this embodiment, unlike existing air detection equipment, this equipment controls the forward and reverse rotation of the bidirectional threaded screw 26 by adjusting the motor 27, and drives the mounting base 24 to move left and right under the action of the threaded block 25. The mounting base 24 drives the detection box 32 to move left and right through the connecting bracket 31, thereby adjusting the working position of the detection component 33, so that the detection component 33 can cover a larger spatial area. By moving the mounting base 24 at a constant speed and continuously sampling by the detection component 33, the single-point error can be reduced after averaging the data of multiple points. When the detection component 33 detects an abnormal increase in the concentration of HF or SO2 gas, the leakage source can be accurately located by adjusting the mounting base 24 back and forth. When the HF or SO2 gas concentration in a certain area suddenly increases, the controller can automatically increase the residence detection time in the area, improve the warning sensitivity, and facilitate the rapid and effective activation of protective measures. The two exhaust fans 35 are driven by the driving motor 34 to rotate and pump air into the detection component 33, which can provide a stable exhaust flow rate and avoid the instability of the gas amount entering the sensor due to natural air flow fluctuations. The electrochemical sensor is then used to detect HF or SO2 gas in the air.

[0024] Second embodiment: See also Figures 8 to 10, a processing mechanism 4 is fixedly provided at the bottom of the left-side mounting frame 1, and the processing mechanism 4 includes a mounting bracket 41 fixedly provided on the rear side of the bottom of the left-side mounting frame 1, and a threaded screw 42 is vertically rotatably connected to the inner side of the mounting bracket 41, and a screw block 43 is threadedly connected to the surface of the threaded screw 42. A processing motor 49 for driving the threaded screw 42 to rotate is provided on the top of the mounting bracket 41, and a guide rail 44 is fixedly provided at the bottom of the left-side mounting frame 1, and four adjustment plates 45 are slidably connected to the surface of the guide rail 44. The left side of the mounting bracket 41 and the adjustment plate 45 is rotatably connected to a shearing frame 46, and the surface of the bottom of the shearing frame 46 is slidably connected to the inner side of the mounting bracket 41 and the adjustment plate 45, and the bottom of the rear side of the shearing frame 46 is rotatably connected to the screw block 43; The processing mechanism 4 is provided with two mirror images on the left and right sides. The inner sides of the two opposing adjustment plates 45 are connected to the liquid outlet pipes 47 by transverse rotation. The surfaces of the four liquid outlet pipes 47 are all connected to the atomizing nozzles 48. Please combine Figure 8 : The processing motor 49 is started. The processing motor 49 rotates to drive the threaded screw 42 to rotate. The threaded screw 42 rotates to drive the screw block 43 to move upward. The screw block 43 drives the bottom of the rear side of the shearing frame 46 to slide in the mounting bracket 41. The shearing frame 46 drives the multiple adjustment plates 45 to extend. The multiple adjustment plates 45 in turn drive the multiple liquid outlet pipes 47 to spread out; Furthermore, when the detection component 33 detects that the air contains HF or SO2 gas, the corresponding chemical absorbent is sprayed through the liquid outlet pipe 47 and the atomizing nozzle 48 to treat the HF or SO2 gas; Preferably, the liquid outlet pipe 47 is connected with a hose and a purification protection device, and the purification protection device transports the chemical absorbent into the liquid outlet pipe 47 through the hose; Both ends of the bidirectional threaded screw 26 are key-connected with an adjustment mechanism 5, and the adjustment mechanism 5 includes a driving gear 51 whose key is connected to both ends of the bidirectional threaded screw 26. Sliding rails 52 are fixed on opposite sides of the two mounting frames 1. Adjustment tooth plates 53 are slidably connected to the inner sides of the two sliding rails 52. The two adjustment tooth plates 53 are respectively engaged with the two driving gears 51. Adjustment gears 54 are fixed on both ends of the liquid outlet pipe 47. Please combine Figure 9 and Figure 10 When the bidirectional threaded screw 26 rotates, it simultaneously drives the two drive gears 51 to rotate. The rotation of the two drive gears 51 drives the adjustment tooth plate 53 to slide backward on the inner side of the sliding rail 52. After the adjustment tooth plate 53 contacts the adjustment gear 54, the adjustment gear 54 drives the liquid outlet pipe 47 to rotate, thereby causing the atomizing nozzle 48 to swing and spray the chemical absorbent; Furthermore, when the adjusting tooth plate 53 moves to the rear working position, the bidirectional threaded screw 26 is reversed, driving the two driving gears 51 to rotate in the opposite direction, thereby driving the adjusting tooth plate 53 to move forward, resetting the position of the liquid outlet pipe 47 and the atomizing nozzle 48.

[0025] In this embodiment, the screw block 43 is driven to move upward by rotating the threaded screw 42, and under the action of the shear frame 46, the multiple adjustment plates 45 are stretched out, thereby spreading out the multiple liquid outlet pipes 47 to form an absorbent protection net. By rotating the driving gear 51, with the cooperation of the adjusting tooth plate 53 and the adjusting gear 54, the liquid outlet pipe 47 and the atomizing nozzle 48 are rotated during operation. The working angle of the atomizing nozzle 48 can be adjusted in a targeted manner according to the gas leakage point to achieve precise protection.

[0026] Third embodiment: See also Figure 1 、 Figures 11 to 13 A cleaning mechanism 6 is fixedly provided at the bottom of the horizontal plate 21, and the cleaning mechanism 6 includes a rotating seat 61 fixedly provided at the bottom of the horizontal plate 21, a rotating rod 62 is rotatably connected to the inner side of the rotating seat 61, a cleaning brush 63 is fixedly provided on the surface of the rotating rod 62, a passive gear 64 is fixedly provided on the surface of the rotating rod 62, a cleaning bracket 65 is fixedly provided on the back of the detection box 32, and an active gear plate 66 is fixedly provided at the bottom of the cleaning bracket 65; Please combine Figure 11 and Figure 13 : The mounting base 24 is moved to the rightmost working position through the bidirectional threaded screw 26, and the mounting base 24 is moved left and right by controlling the adjustment motor 27. The left and right movement of the mounting base 24 drives the detection box 32 to move left and right through the connecting bracket 31. The left and right movement of the detection box 32 drives the active gear plate 66 to move left and right through the cleaning bracket 65, and then the passive gear 64 drives the cleaning brush 63 to rotate, cleaning the bottom of the dustproof plate 36 to avoid affecting the normal use of the electrochemical sensor.

[0027] The inner side of the bottom of the four adjustment plates 45 is slidably connected to a guide rod 7, the rear end of the guide rod 7 is fixedly connected to the mounting bracket 41, and the front end of the guide rod 7 is fixedly provided with a connecting frame 8, the top of the connecting frame 8 is fixedly connected to the bottom of the mounting frame 1; Preferably, the setting of the guide rod 7 can improve the stability of the adjustment plate 45 when it moves; Three suspension rods 9 are respectively provided on the top of the two mounting frames 1, and two sound and light alarms 10 are respectively provided on the top of the two mounting frames 1; Preferably, the device is installed on the top of the extraction tank through a suspension rod 9, and the sound and light alarm 10 is electrically connected to the controller.

[0028] In this embodiment, by adjusting the bidirectional threaded screw 26, the mounting seat 24 drives the connecting bracket 31 and the detection box 32 to move left and right, and the detection box 32 drives the active gear plate 66 to move left and right through the cleaning bracket 65, so that the passive gear 64 drives the cleaning brush 63 to rotate, and the bottom of the dustproof plate 36 is cleaned. The rotation of the cleaning brush 63 can remove sulfuric acid droplets and metal dust on the surface of the dustproof plate 36, keep the micropores unobstructed, prevent sensor signal attenuation, ensure detection accuracy, and reduce maintenance frequency.

[0029] Fourth embodiment: See also Figure 14 A method for preparing an extractant for tantalum metal extraction comprises the following steps: Step S1, preparation of dibutyl (4-bromobutyl)phosphonate: S11, weighing a certain amount of purified dibromobutane and tributyl phosphite; Preferably, the purification step of tributyl phosphite is similar to that of dibromobutane, and dilute hydrochloric acid is used in the washing process, with a certain amount of dibromobutane and tributyl phosphite molar ratio of 1:1.2; S12, adding an appropriate amount of solvent to the reaction vessel and mixing thoroughly; Preferably, the solvent is toluene; S13, placing the reaction vessel into a microwave reactor to start the reaction and monitor in real time; Preferably, the microwave reactor power is 300 W, the reaction temperature is 120° C., the stirring rate is 200 rpm, and the reaction time is 45 min; S14, after the reaction solution is cooled to room temperature, it is transferred to a separatory funnel for washing, and the organic phase is collected by standing and separating; Preferably, the detergent is a saturated NaHCO3 solution; S15, the organic phase is quickly dried by passing through an anhydrous magnesium sulfate column, and the filtrate is subjected to a rotary evaporator to remove the solvent to obtain an intermediate product; Preferably, the rotary evaporation temperature is 40°C and the pressure is 10 mbr; Step S2, preparing quaternary ammonium salt: S21. Under nitrogen protection, add the above-prepared dibutyl (4-bromobutyl)phosphonate and tributylamine to a three-necked flask, and then add a solvent; Preferably, the solvent is toluene, and the molar ratio of dibutyl (4-bromobutyl)phosphonate to tributylamine is 1:1.1; S22, installing a condensing device, and performing heating reflux reaction on a magnetic stirrer; Preferably, the heating temperature is 80°C and the reaction time is 24h; S23, the reaction solution after the reaction is filtered under reduced pressure, the solid product is collected, and the solid product is washed and dried to obtain a quaternary ammonium salt product; Preferably, the detergent is cold toluene, and vacuum drying is performed at 40°C; Step S3, preparing an extractant: S31, dissolving the quaternary ammonium salt prepared above and lithium bis(trifluoromethanesulfonyl)imide (LiNTf2) in a solvent in a certain proportion, adding the mixture to a round-bottom flask, and stirring to react; Preferably, the molar ratio of the quaternary ammonium salt to lithium bis(trifluoromethanesulfonyl)imide (LiNTf2) is 1:1.1, the solvent is dichloromethane, and the reaction is carried out at room temperature for 48 hours; S32. After the reaction is completed, the reaction solution is transferred to a separatory funnel for washing by shaking, and after standing for stratification, the organic phase is separated; S33, repeatedly washing the organic phase with deionized water; Preferably, washing is completed when the aqueous phase is tested with a silver nitrate solution and no silver bromide precipitate is produced; S34, drying the organic phase with anhydrous magnesium sulfate, filtering, and transferring the filtrate to a round-bottom flask; Preferably, anhydrous magnesium sulfate is added to the organic phase and allowed to stand for 2-3 hours; S35, using a rotary evaporator to remove the solvent under reduced pressure to obtain a crude product; S36. The crude product is placed in a vacuum drying oven and dried to a constant weight to obtain a pure ionic liquid having phosphonate functionalization.

[0030] In this embodiment, the phosphonate-functionalized ionic liquid extractant achieves efficient and highly selective extraction of tantalum in a sulfuric acid system through targeted coordination, ion pair effect and structural adjustability. It has the advantages of being environmentally friendly, recyclable and highly acid-resistant. It can replace traditional extractants and become a green and efficient technology in the field of tantalum metallurgical separation.

[0031] Please refer to the Figures 1 to 13 The working principle of the air pollution detection equipment for tantalum metal extraction provided by the present invention is as follows: Step S1: The device is installed on the top of the extraction tank via the suspension rod 9, and the drive motor 34 is started. The drive motor 34 rotates to drive the two exhaust fans 35 to rotate. The two exhaust fans 35 pump air into the detection assembly 33, and the electrochemical sensor is used to detect HF or SO2 gas in the air. When HF or SO2 gas is detected in the air, the controller activates the sound and light alarm 10 to alert the staff. Step S2, start the adjustment motor 27, the adjustment motor 27 rotates to drive the bidirectional threaded screw 26 to rotate, the bidirectional threaded screw 26 rotates to drive the thread block 25 to move left, the thread block 25 moves and then drives the mounting seat 24 to move left, so that the four sliding seats 23 slide to the left on the surface of the slide rail 22, and the bidirectional threaded screw 26 is driven to rotate in the opposite direction by the adjustment motor 27. The bidirectional threaded screw 26 then drives the thread block 25 to move right, and the thread block 25 moves right and drives the mounting seat 24 to move right, so that the four sliding seats 23 move right on the surface of the slide rail 22. When the mounting seat 24 moves, it will simultaneously drive the detection box 32 to move through the connecting bracket 31, thereby adjusting the working position of the detection assembly 33; Step S3: Start the processing motor 49. The processing motor 49 rotates to drive the threaded screw 42 to rotate. The threaded screw 42 rotates to drive the screw block 43 to move upward. The screw block 43 drives the bottom of the rear side of the shearing frame 46 to slide within the mounting bracket 41. The shearing frame 46 drives the multiple adjustment plates 45 to extend. The multiple adjustment plates 45 further drive the multiple liquid outlet pipes 47 to spread out. When the detection component 33 detects that the air contains HF or SO2 gas, the corresponding chemical absorbent is sprayed through the liquid outlet pipe 47 and the atomizing nozzle 48 to treat the HF or SO2 gas; In step S4, when the bidirectional threaded screw 26 rotates, the two driving gears 51 are simultaneously driven to rotate. The rotation of the two driving gears 51 drives the adjusting tooth plate 53 to slide backward on the inner side of the sliding rail 52. After the adjusting tooth plate 53 contacts the adjusting gear 54, the adjusting gear 54 drives the liquid outlet pipe 47 to rotate, thereby causing the atomizing nozzle 48 to swing and spray the chemical absorbent. When the adjusting tooth plate 53 moves to the rear working position, the bidirectional threaded screw 26 is reversed, driving the two driving gears 51 to rotate in the opposite direction, thereby driving the adjusting tooth plate 53 to move forward, resetting the positions of the liquid outlet pipe 47 and the atomizing nozzle 48. In step S5, the mounting base 24 is moved to the rightmost working position through the bidirectional threaded screw 26, and the mounting base 24 is moved left and right by controlling the adjustment motor 27. The left and right movement of the mounting base 24 drives the detection box 32 to move left and right through the connecting bracket 31. The left and right movement of the detection box 32 drives the active gear plate 66 to move left and right through the cleaning bracket 65, and then the passive gear 64 drives the cleaning brush 63 to rotate to clean the bottom of the dustproof plate 36.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air pollution detection device for tantalum metal extraction, characterized in that: It includes two mounting frames, an adjustment mechanism and a detection mechanism; Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The swing arm is connected to the swing arm by a threaded connecting strip which is cooperatively connected with the hook portion. The detection mechanism includes a connecting bracket and a detection box. The connecting bracket is fixedly arranged on the front side of the mounting base. The front side of the connecting bracket is fixedly connected to the detection box. A detection component is arranged on the inner side of the detection box. An electrochemical sensor is arranged inside the detection component for real-time monitoring of HF or SO2 gas in the air.

2. The air pollution detection equipment for tantalum metal extraction according to claim 1, characterized in that: A driving motor is provided on the top of the detection box, a rotating shaft is fixedly provided at the output end of the driving motor, two exhaust fans are fixedly provided on the surface of the rotating shaft, the two exhaust fans are respectively located at the top and bottom of the detection component, and a dustproof plate is provided at the bottom of the detection box.

3. The air pollution detection equipment for tantalum metal extraction according to claim 2, characterized in that: The inner side of the transverse plate is provided with a sliding groove used in conjunction with the threaded block, which is used to provide the threaded block with left and right sliding. The inner side of the threaded block is provided with a threaded groove used in conjunction with the bidirectional threaded screw.

4. The air pollution detection equipment for tantalum metal extraction according to claim 1, characterized in that: The bottom of the left mounting bracket is fixedly provided with a processing mechanism, and the processing mechanism includes a mounting bracket fixedly provided on the rear side of the bottom of the left mounting bracket, the inner side of the mounting bracket is vertically rotatably connected to a threaded screw, the surface of the threaded screw is threadedly connected to a screw block, and the top of the mounting bracket is provided with a processing motor for driving the threaded screw to rotate, and the bottom of the left mounting bracket is fixedly provided with a guide rail, and four adjustment plates are slidably connected to the surface of the guide rail, and the left side of the mounting bracket and the adjustment plate is rotatably connected to a shearing bracket, the surface of the bottom of the shearing bracket is slidably connected to the inner side of the mounting bracket and the adjustment plate, and the bottom of the rear side of the shearing bracket is rotatably connected to the screw block; The processing mechanism is provided with two groups in mirror image on the left and right sides. The inner sides of the two opposite adjustment plates are connected with liquid outlet pipes by transverse rotation. The surfaces of the four liquid outlet pipes are all connected with atomizing nozzles.

5. The air pollution detection equipment for tantalum metal extraction according to claim 4, characterized in that: Both ends of the bidirectional threaded screw are key-connected with an adjustment mechanism, and the adjustment mechanism includes a driving gear whose key is connected to both ends of the bidirectional threaded screw. Sliding rails are fixed on the opposite sides of the two mounting frames, and the inner sides of the two sliding rails are slidably connected with adjustment tooth plates, and the two adjustment tooth plates are respectively engaged with the two driving gears, and both ends of the liquid outlet pipe are fixed with adjustment gears.

6. The air pollution detection device method for tantalum metal extraction according to claim 1, characterized in that: A cleaning mechanism is fixedly provided at the bottom of the horizontal plate, and the cleaning mechanism includes a rotating seat fixedly provided at the bottom of the horizontal plate, a rotating rod is rotatably connected to the inner side of the rotating seat, a cleaning brush is fixedly provided on the surface of the rotating rod, a passive gear is fixedly provided on the surface of the rotating rod, a cleaning bracket is fixedly provided on the back of the detection box, and an active gear plate is fixedly provided at the bottom of the cleaning bracket.

7. The air pollution detection equipment for tantalum metal extraction according to claim 4, characterized in that: The inner sides of the bottoms of the four adjustment plates are slidably connected with guide rods, the rear ends of the guide rods are fixedly connected with the mounting brackets, the front ends of the guide rods are fixedly provided with connecting frames, and the tops of the connecting frames are fixedly connected with the bottoms of the mounting frames.

8. The air pollution detection equipment for tantalum metal extraction according to claim 1, characterized in that: Three suspension rods are respectively arranged on the tops of the two mounting frames, and two sound and light alarms are respectively arranged on the tops of the two mounting frames.

9. A method for preparing an extractant for tantalum metal extraction, characterized in that: The air detection device according to any one of claims 1 to 8 is used to detect gas when an extractant is used to extract tantalum metal, comprising the following steps: Step S1, preparation of dibutyl (4-bromobutyl)phosphonate: S11, weighing a certain amount of purified dibromobutane and tributyl phosphite; S12, adding an appropriate amount of solvent to the reaction vessel and mixing thoroughly; S13, placing the reaction vessel into a microwave reactor to start the reaction and monitor in real time; S14, after the reaction solution is cooled to room temperature, it is transferred to a separatory funnel for washing, and the organic phase is collected by standing and separating; S15, the organic phase is quickly dried by passing through an anhydrous magnesium sulfate column, and the filtrate is subjected to a rotary evaporator to remove the solvent to obtain an intermediate product; Step S2, preparing quaternary ammonium salt: S21. Under nitrogen protection, add the above-prepared dibutyl (4-bromobutyl)phosphonate and tributylamine to a three-necked flask, and then add a solvent; S22, installing a condensing device, and performing heating reflux reaction on a magnetic stirrer; S23, the reaction solution after the reaction is filtered under reduced pressure, the solid product is collected, and the solid product is washed and dried to obtain a quaternary ammonium salt product; Step S3, preparing an extractant: S31, dissolving the quaternary ammonium salt prepared above and lithium bis(trifluoromethanesulfonyl)imide (LiNTf2) in a solvent in a certain proportion, adding the mixture to a round-bottom flask, and stirring to react; S32. After the reaction is completed, the reaction solution is transferred to a separatory funnel for washing by shaking, and after standing for stratification, the organic phase is separated; S33, repeatedly washing the organic phase with deionized water; S34, drying the organic phase with anhydrous magnesium sulfate, filtering, and transferring the filtrate to a round-bottom flask; S35, using a rotary evaporator to remove the solvent under reduced pressure to obtain a crude product; S36. The crude product is placed in a vacuum drying oven and dried to a constant weight to obtain a pure ionic liquid having phosphonate functionalization.

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