Production system of high-purity antimony

Abstract

The embodiment of the utility model discloses a production system of high-purity antimony, which comprises a chlorination device provided with a chlorination gas outlet; the first fractional condenser is provided with a first condensation gas inlet and a first condensation liquid outlet, and the first condensation gas inlet is connected with the chlorination gas outlet; the rectification equipment is provided with a primary rectification liquid inlet and a final rectification gas outlet, and the primary rectification liquid inlet is connected with the first condensation liquid outlet; and the reduction equipment is provided with a first reduction gas inlet, and the first reduction gas inlet is connected with the final-stage rectification gas outlet. According to the embodiment of the utility model, continuous production of high-purity antimony can be realized, and meanwhile, the purity of the high-purity antimony can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-purity antimony production equipment, in particular to a high-purity antimony production system. Background Art

[0002] High-purity antimony occupies an important position in the national economy and is widely used in semiconductors, dopants, flame retardants, alloys, batteries, infrared detectors, medical equipment, military manufacturing and other fields. At present, in the high-purity antimony industry, some of the fire-processed antimony smelting equipment represented by blast furnace volatilization smelting-reverberatory furnace reduction smelting is used to produce high-purity antimony. This equipment has problems such as complex operation and serious environmental pollution. There are also some vacuum distillation devices to produce high-purity antimony. The distillation part of this device uses a large-sized quartz tube, and the condenser tube uses a high-temperature and easily softened glass material. It has problems such as poor cooling effect and easy reflux of impurities, which are not suitable for the production of high-purity antimony, resulting in more impurities in the produced high-purity antimony. There are also some horizontal smelting furnaces, vacuum furnaces and other equipment with complex structures, which are difficult to achieve continuous production. It can be seen that the existing devices for preparing high-purity antimony have problems such as inability to produce continuously, low production efficiency, and low purity of finished products. Utility Model Content

[0003] Therefore, in order to overcome at least some of the defects and shortcomings in the prior art, an embodiment of the utility model provides a high-purity antimony production system, which can achieve continuous production of high-purity antimony while ensuring the purity of high-purity antimony.

[0004] An embodiment of the utility model provides a production system of high-purity antimony, for example, comprising: a chlorination device, wherein the chlorination device is provided with a chlorination gas outlet; a first fractional condenser, wherein the first fractional condenser is provided with a first condensation gas inlet and a first condensation liquid outlet, and the first condensation gas inlet is connected to the chlorination gas outlet; a rectification device, wherein the rectification device is provided with a primary rectification liquid inlet and a final rectification gas outlet, and the primary rectification liquid inlet is connected to the first condensation liquid outlet; a reduction device, wherein the reduction device is provided with a first reduction gas inlet, and the first reduction gas inlet is connected to the final rectification gas outlet; wherein the chlorination device is used to chlorinate the raw materials entering the chlorination device to obtain a chlorination product; the first fractional condenser is used to condense the chlorination product to separate and obtain a condensation product; the rectification device is used to rectify the condensation product entering the rectification device to obtain a distillation product; the reduction device is used to reduce the distillation product entering the reduction device to obtain high-purity antimony.

[0005] In one embodiment of the utility model, the distillation equipment includes: a first distillation tower, the primary distillation liquid inlet is arranged on the first distillation tower, and the first distillation tower is also provided with a primary distillation gas outlet; a second fractional condenser, the second fractional condenser is provided with a second condensation gas inlet and a second condensation liquid outlet, the second condensation gas inlet is connected to the primary distillation gas outlet; a second distillation tower, the second distillation tower is provided with a final distillation liquid inlet, the final distillation liquid inlet is connected to the second condensation liquid outlet, and the final distillation gas outlet is arranged on the second distillation tower.

[0006] In one embodiment of the utility model, a first temperature control component is provided on the first distillation tower, and the first temperature control component is used to heat the first distillation tower and monitor the temperature inside the first distillation tower; a second temperature control component is provided on the second distillation tower, and the second temperature control component is used to heat the second distillation tower and monitor the temperature inside the second distillation tower; a third temperature control component is provided on the chlorination equipment, and the third temperature control component is used to heat the chlorination equipment and monitor the temperature inside the chlorination equipment; a fourth temperature control component is provided on the reduction equipment, and the fourth temperature control component is used to heat the reduction equipment and monitor the temperature inside the reduction equipment.

[0007] In one embodiment of the utility model, the high-purity antimony production system also includes a waste gas collecting bottle; a first condensation outlet is provided on the second grading condenser, and a first reduction outlet is provided on the reduction equipment, and the first condensation outlet and the first reduction outlet are respectively connected to the waste gas collecting bottle.

[0008] In one embodiment of the utility model, the reduction device is provided with a second reduction air inlet connected to a hydrogen cylinder; the waste gas collecting bottle is provided with a waste gas outlet, and the waste gas outlet is connected to the hydrogen cylinder.

[0009] In one embodiment of the present utility model, a first gas booster is provided between the exhaust gas outlet and the hydrogen cylinder.

[0010] In one embodiment of the utility model, a fluidized bed reactor is provided in the chlorination equipment; a chlorine gas inlet connected to a chlorine gas cylinder is provided at the bottom of the chlorination equipment, and a second condensation gas outlet is provided on the first fractional condenser, and the second condensation gas outlet is connected to the chlorine gas cylinder.

[0011] In one embodiment of the present invention, a second gas booster is provided between the second condensation gas outlet and the chlorine gas cylinder.

[0012] In one embodiment of the present invention, the angle between the reduction device and the direction where the center of gravity of the reduction device is located is 63 to 75 degrees.

[0013] In one embodiment of the utility model, a second restoration air inlet is provided on the restoration device, and the height from the first restoration air inlet to the ground is greater than the height from the second restoration air inlet to the ground.

[0014] It can be seen from the above that the above technical solution has at least one or more of the following beneficial effects:

[0015] (1) The embodiment of the utility model provides a chlorination device, a first fractional condenser, a distillation device and a reduction device, so that the production system of high-purity antimony is an integrated system, whereby the chlorination reaction, distillation purification treatment and reduction reaction in the step of preparing high-purity antimony all occur in the same system, thereby realizing the continuous production of high-purity antimony. Secondly, by providing a first fractional condenser and a distillation device, antimony trichloride and impurities can be deeply separated, thereby improving the purity of antimony trichloride, thereby improving the purity of high-purity antimony prepared subsequently.

[0016] (2) By respectively setting temperature control components on the chlorination equipment, the first distillation tower, the second distillation tower and the reduction equipment, the temperature control of the system is flexible, thereby avoiding the influence of excessively high or low temperature on the purity of the product, thereby ensuring the purity of the product.

[0017] (3) The utility model can improve the separation rate of gas substances by setting the first gas booster and the second gas booster, and can control the flow of chlorine and hydrogen to the chlorine cylinder and the hydrogen cylinder, so as to ensure the recycling of chlorine and hydrogen, and improve production efficiency. At the same time, by connecting the waste gas collection bottle with the second graded condenser and the reduction equipment, the waste gas substances generated during the reaction process can be fully absorbed, and the raw materials can be fully utilized, thereby reducing the emission of waste gas substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific implementation of the present utility model will be described in detail below with reference to the accompanying drawings.

[0019] Figure 1 A schematic structural diagram of a high-purity antimony production system provided in an embodiment of the utility model.

[0020] Figure 2 A schematic structural diagram of another high-purity antimony production system provided in an embodiment of the utility model.

[0021] Figure 3 for Figure 2 The schematic structural diagram of the distillation equipment is shown.

[0022] Description of Reference Numerals

[0023] 10: High-purity antimony production system; 100: Chlorination equipment; 110: First thermocouple; 120: First heater; 130: First switch valve; 140: Fluidized bed reactor; 200: First fractional condenser; 300: Distillation equipment; 310: First distillation tower; 311: Second thermocouple; 312: Second heater; 320: Second fractional condenser; 330: Second distillation tower; 331: Third thermocouple; 332: Third heater; 340: Second air flow controller; 400: Reduction equipment; 410: Fourth thermocouple; 420: Fourth heater; 430: Second switch valve; 500: Waste gas collection bottle; 600: Chlorine gas bottle; 610: Second gas booster; 620: The first air flow controller; 700: hydrogen cylinder; 710: the first gas booster; 711: the third switch valve; 720: the third air flow controller; 800: the first collecting box; 900: the second collecting box; 910: the fourth switch valve; a: feed inlet; b: chlorine inlet; c: chlorination outlet; d: first condensation inlet; e: first condensation liquid outlet; f: second condensation outlet; g: primary distillation liquid inlet; h: primary distillation outlet; i: second condensation inlet; j: first condensation outlet; k: second condensation liquid outlet; l: final distillation liquid inlet; m: final distillation outlet; n: first reduction inlet; o: second reduction inlet; p: first reduction outlet; q: exhaust gas outlet. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] It should also be noted that the division of multiple embodiments in the present invention is only for the convenience of description and should not constitute a special limitation. The features in various embodiments can be combined and referenced to each other without contradiction.

[0028] like Figure 1 As shown, the embodiment of the utility model provides a high purity antimony production system 10. The high purity antimony production system 10 includes, for example: a chlorination device 100, a first fractional condenser 200, a distillation device 300 and a reduction device 400.

[0029] Specifically, Figure 1 As shown, the chlorination device 100 is provided with a chlorination gas outlet c. The first fractional condenser 200 is provided with a first condensation gas inlet d and a first condensation liquid outlet e, and the first condensation gas inlet d is connected to the chlorination gas outlet c. The rectification device 300 is provided with a primary rectification liquid inlet g and a final rectification gas outlet m, and the primary rectification liquid inlet g is connected to the first condensation liquid outlet e. The reduction device 400 is provided with a first reduction gas inlet n, and the first reduction gas inlet n is connected to the final rectification gas outlet m. Among them, the chlorination device 100 is used to chlorinate the raw materials entering the chlorination device 100 to obtain a chlorinated product. The first fractional condenser 200 is used to condense the chlorinated product to separate and obtain a condensed product. The rectification device 300 is used to rectify the condensed product entering the rectification device 300 to obtain a rectified product. The reduction device 400 is used to reduce the rectified product entering the reduction device 400 to obtain high-purity antimony.

[0030] The embodiment of the utility model connects the chlorination device 100, the first fractional condenser 200, the distillation device 300 and the reduction device 400 in sequence, so that the production system 10 of high-purity antimony is an integrated system, thereby, the chlorination reaction, distillation purification treatment and reduction reaction in the step of preparing high-purity antimony all occur in the same system, thereby realizing the continuous production of high-purity antimony. Secondly, by setting the first fractional condenser 200 and the distillation device 300, antimony trichloride and impurities can be deeply separated, thereby improving the purity of antimony trichloride, thereby improving the purity of high-purity antimony prepared subsequently.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the preparation of high-purity antimony is taken as an example by taking refined antimony powder as raw material. The chlorination equipment 100 is, for example, a chlorination reaction kettle. The chlorination equipment 100 is provided with, for example, a fluidized bed reactor 140, and the fluidized bed reactor 140 is used to keep the refined antimony powder in a boiling state, that is, the fluidized bed reactor can keep the refined antimony powder in a suspended state, so that the refined antimony powder can react better with chlorine. Secondly, a chlorine gas inlet b connected to a chlorine gas bottle 600 is provided at the bottom of the chlorination equipment 100, and a second condensation gas outlet f is provided on the first fractional condenser 200, and the second condensation gas outlet f is connected to the chlorine gas bottle 600.

[0032] like Figure 1 and Figure 2 As shown, for example, a feed port a is provided at the top of the chlorination device 100, and a chlorine gas inlet b is provided at the bottom. Refined antimony powder, for example, enters the chlorination device 100 from the feed port a. The chlorine gas inlet b is connected to the chlorine gas bottle 600, and chlorine gas enters the chlorination device 100 from the chlorine gas inlet b. Refined antimony powder and chlorine gas undergo a chlorination reaction in the chlorination device 100 to produce chlorination reactants, such as antimony trichloride and impurities, such as gas. The chlorination reactants flow from the chlorination gas outlet c to the first condensation gas inlet d, and then enter the first fractional condenser 200.

[0033] Alternatively, if Figure 1 and Figure 2 As shown, a first switch valve 130 is provided between the chlorination outlet c and the first condensation inlet d, and the first switch valve 130 is used to control whether the chlorination reactant enters the first fractional condenser 200. A first airflow controller 620 is provided on the chlorine inlet b, for example. The first airflow controller 620 is used to achieve precise control of the flow rate of chlorine gas, to avoid waste caused by too fast chlorine flow rate or failure to achieve the expected chlorination effect due to too slow flow rate, thereby ensuring the full progress of the chlorination reaction and achieving full utilization of the material.

[0034] like Figure 1 and Figure 2As shown, for example, when the refined antimony powder and chlorine gas just start to react, the first switch valve 130 is in a closed state, that is, the chlorination reactant will not flow into the first fractional condenser 200, and the first air flow controller 620 controls the chlorine gas to enter the chlorination device 100 at an appropriate rate. After a period of reaction, the first switch valve 130 is opened again. At this time, the first air flow controller 620 is closed, and the residual chlorine gas and the chlorination reactant will flow into the first fractional condenser 200.

[0035] Furthermore, if Figure 1 and Figure 2 As shown, the first fractional condenser 200 can achieve a high degree of separation of two or more gaseous substances. For example, the first fractional condenser 200 can separate residual chlorine and chlorination reactants, and chlorine flows from the second condensation gas outlet f to the chlorine bottle 600, and the chlorination reactants are in liquid form at this time, and flow from the first condensation liquid outlet e to the distillation equipment 300. Optionally, a second gas booster 610 is provided between the second condensation gas outlet f and the chlorine bottle 600. The second gas booster 610 is, for example, a gas booster pump. The second gas booster 610 is connected to the first fractional condenser 200, and the separation rate of the gaseous substances in the first fractional condenser 200 can be increased, that is, the separation rate of the residual chlorine and the chlorination reactants can be increased.

[0036] Secondly, if Figure 1 and Figure 2 As shown, by setting the second gas booster 610, the chlorine gas can be controlled to flow downward, that is, to flow back to the chlorine gas bottle 600 from the second condensation outlet f, so as to realize the recycling of chlorine gas and save costs. This setting enables the system to achieve the advantages of fast production speed, deep separation, good product quality stability, etc.

[0037] like Figure 1 and Figure 2 As shown, the chlorination device 100 is provided with a third temperature control component, for example. The third temperature control component is used to heat the chlorination device 100 and monitor the temperature inside the chlorination device 100. Specifically, the third temperature control component includes, for example, a first heater 120 and a first thermocouple 110. The first heater 120 and the first thermocouple 110 are, for example, controlled by a main controller, such as a CPU. For example, the first heater 120 is used to heat the chlorination device 100, and the first thermocouple 110 is used to monitor the temperature inside the chlorination device 100. When the first thermocouple 110 detects that the temperature inside the chlorination device 100 reaches the temperature required for the chlorination reaction, the corresponding information is fed back to the main controller, and the main controller controls the first heater 120 to stop heating according to the corresponding information.

[0038] In this embodiment, by providing the first heater 120 and the first thermocouple 110, the temperature in the chlorination device 100 can be monitored in real time while the chlorination device 100 is heated, so as to accurately determine whether the temperature in the chlorination device 100 meets the temperature required for the chlorination reaction, thereby better performing the chlorination reaction and improving the reaction efficiency of the chlorination reaction.

[0039] like Figure 1 and Figure 2 As shown, a first collecting box 800 is provided between the first fractional condenser 200 and the distillation equipment 300, that is, the first condensation liquid outlet e and the primary distillation liquid inlet g are respectively connected to the first collecting box 800. A switch is provided at the connection between the first collecting box 800 and the primary distillation liquid inlet g, and the switch is used to control the opening and closing of the first collecting box 800, so as to control whether the chlorination reactant in the first collecting box 800 flows to the first distillation tower 310. For example, the chlorination reactant separated by the first fractional condenser 200 will first flow from the first condensation liquid outlet e to the first collecting box 800, and then flow to the distillation equipment 300. When the chlorination reactant in the first collecting box 800 reaches a certain amount, the switch is turned on, and the chlorination reactant will flow into the distillation equipment 300.

[0040] like Figure 2 and Figure 3 As shown, the distillation equipment 300 includes, for example, a first distillation tower 310, a second fractional condenser 320, and a second distillation tower 330. Specifically, a primary distillation liquid inlet g is provided on the first distillation tower 310, and a primary distillation gas outlet h is also provided on the first distillation tower 310. A second condensation gas inlet i and a second condensation liquid outlet k are provided on the second fractional condenser 320, and the second condensation gas inlet i is connected to the primary distillation gas outlet h. A final distillation liquid inlet l is provided on the second distillation tower 330, and the final distillation liquid inlet l is connected to the second condensation liquid outlet k, and the final distillation gas outlet m is provided on the second distillation tower 330.

[0041] like Figure 2 and Figure 3 As shown, for example, the chlorination reactant flowing out of the first collecting box 800 will flow into the first distillation tower 310, and the first distillation tower 310 is provided with a tray, and the chlorination reactant will flow onto the tray. The chlorination reactant includes, for example, antimony trichloride, high boiling point compounds, low boiling point compounds and other impurities. High boiling point compounds are compounds with a higher boiling point than antimony trichloride; low boiling point compounds are compounds with a lower boiling point than antimony trichloride, such as water and hydrochloric acid; and other impurities are, for example, arsenic, lead, etc.

[0042] Furthermore, if Figure 2 and Figure 3As shown, the first distillation tower 310 is provided with a first temperature control component, for example. The first temperature control component is used to heat the first distillation tower 310 and monitor the temperature inside the first distillation tower 310. Specifically, the first temperature control component includes, for example, a second thermocouple 311 and a second heater 312. The second heater 312 heats the first distillation tower 310. When the second thermocouple 311 monitors that the temperature inside the first distillation tower 310 reaches a certain temperature, the second heater 312 stops heating. At this time, the switch of the first collecting box 800 is turned on to flow the chlorination reactant into the first distillation tower 310.

[0043] Furthermore, if Figure 2 and Figure 3 As shown, the chlorinated reactants are first distilled in the first distillation tower 310. At this time, the temperature in the first distillation tower 310 is, for example, higher than the boiling point of antimony trichloride, low-boiling point compounds and other impurities but lower than the boiling point of high-boiling point compounds. As a result, antimony trichloride, low-boiling point compounds and other impurities vaporize and flow upward, that is, flow from the primary distillation outlet h to the second condensation inlet i, that is, flow to the second fractional condenser 320. The high-boiling point compounds are solid at this time and will be left on the tray in the first distillation tower 310. Optionally, as Figure 1 As shown, a first waste channel is provided at the bottom of the first distillation tower 310 , and the high-boiling-point compounds remaining in the first distillation tower 310 can flow out from the first waste channel and be collected.

[0044] like Figure 2 and Figure 3 As shown, the production system 10 of high-purity antimony also includes, for example, a waste gas collection bottle 500. The waste gas collection bottle 500 is, for example, an absorption tower or other equipment for absorbing waste gas. The second fractional condenser 320 is provided with a first condensation gas outlet j, and the reduction device 400 is provided with a first reduction gas outlet p, and the first condensation gas outlet j and the first reduction gas outlet p are respectively connected to the waste gas collection bottle 500. The second fractional condenser 320 can achieve a high degree of separation of two or more gaseous substances. For example, the second fractional condenser 320 can separate low-boiling point compounds and antimony trichloride with other impurities, and the low-boiling point compounds are vaporized and connected upward, that is, flow from the first condensation gas outlet j to the waste gas collection bottle 500; while the antimony trichloride with other impurities is in a liquid state and flows downward at this time, and flows from the second condensation liquid outlet k to the final distillation liquid inlet l, that is, flows to the second distillation tower 330, and the second distillation tower 330 is provided with a tray, for example, and the antimony trichloride with other impurities flows to the tray.

[0045] like Figure 2 and Figure 3As shown, the reduction device 400 is, for example, a reduction furnace. The second distillation tower 330 is, for example, provided with a second temperature control component. The second temperature control component is used to heat the second distillation tower 330 and monitor the temperature inside the second distillation tower 330. Specifically, the second temperature control component includes, for example, a third thermocouple 331 and a third heater 332. The third heater 332 heats the second distillation tower 330. When the third thermocouple 331 monitors that the temperature inside the second distillation tower 330 reaches the temperature required for the reduction reaction, the third heater 332 stops heating.

[0046] Furthermore, if Figure 2 and Figure 3 As shown, antimony trichloride with other impurities is distilled for the second time in the second distillation tower 330. At this time, the temperature in the second distillation tower 330 is, for example, higher than the boiling point of antimony trichloride but lower than the boiling point of other impurities. Thus, antimony trichloride vaporizes and flows from the final distillation outlet m to the first reduction inlet n, that is, to the reduction device 400, while other impurities are solid at this time and are left on the tray in the second distillation tower 330. Optionally, as Figure 1 As shown, the bottom of the second distillation tower 330 is provided with a second waste channel, for example, and other impurities remaining in the second distillation tower 330 can flow out from the second waste channel and be collected.

[0047] Alternatively, if Figure 1 and Figure 2 As shown, for example, a second airflow controller 340 is provided between the final distillation outlet m and the first reduction air inlet n, and the second airflow controller 340 is used to achieve precise control of the flow rate of antimony trichloride gas, to avoid waste caused by too fast flow rate of antimony trichloride or failure to achieve the expected reduction effect due to too slow flow rate, thereby ensuring the full progress of the reduction reaction and achieving full utilization of the material. Further, the reduction device 400 is provided with a second reduction air inlet o connected to the hydrogen cylinder 700. A third airflow controller 720 is provided between the second reduction air inlet o and the hydrogen cylinder, and the third airflow controller 720 is used to achieve precise control of the flow rate of hydrogen, to avoid waste caused by too fast flow rate of hydrogen or failure to achieve the expected reduction effect due to too slow flow rate, thereby ensuring the full progress of the reduction reaction and achieving full utilization of the material.

[0048] Secondly, if Figure 1 and Figure 2As shown, the reduction device 400 is provided with a fourth temperature control component, for example. The fourth temperature control component is used to heat the reduction device 400 and monitor the temperature inside the reduction device 400. Specifically, the fourth temperature control component includes, for example, a fourth thermocouple 410 and a fourth heater 420. The fourth heater 420 heats the reduction device 400, and the fourth thermocouple 410 monitors the temperature inside the reduction device 400. When the temperature reaches a certain level, the fourth heater 420 stops heating. At this time, antimony trichloride and hydrogen undergo a gas phase reduction reaction in the reduction device 400 to generate high-purity antimony and other gases.

[0049] like Figure 1 and Figure 2 As shown, for example, the bottom of the reduction device 400 is connected to a second collection box 900, and a fourth switch valve 910 is provided between the reduction device 400 and the second collection box 900. In this embodiment, a second switch valve 430 is also provided between the waste gas collection bottle 500 and the first reduction gas outlet p. When antimony trichloride and hydrogen just enter the reduction device 400, the fourth switch valve 910 and the second switch valve 430 are both in a closed state, and at this time, antimony trichloride and hydrogen can react fully. After a period of reaction, the fourth switch valve 910 and the second switch valve 430 are opened, and the second air flow controller 340 and the third air flow controller 720 are closed. At this time, the high-purity antimony generated by the reduction reaction is solid, and flows to the second collection box 900 below the reduction device 400 under the action of gravity, and other gases generated by the reaction flow upward, that is, from the first reduction gas outlet p to the waste gas collection bottle 500.

[0050] In this embodiment, by connecting the waste gas collecting bottle 500 with the second fractional condenser 320 and the reduction device 400, the waste gas substances generated during the reaction process can be fully absorbed, the raw materials can be fully utilized, and the emission of waste gas substances can be reduced.

[0051] Alternatively, if Figure 1 and Figure 2 As shown, in this embodiment, the angle between the reduction device 400 and the direction of the center of gravity of the reduction device 400 is, for example, 63 to 75 degrees. Specifically, the height from the first reduction air inlet n to the ground is greater than the height from the second reduction air inlet o to the ground. In this embodiment, the reduction device 400 is placed at a certain angle so that high-purity antimony can flow downward naturally, and other gases can also flow upward, that is, discharged from the first reduction outlet p.

[0052] Furthermore, if Figure 1 and Figure 2As shown, the waste gas collection bottle 500 is provided with a waste gas outlet q, the waste gas outlet q is connected to the hydrogen bottle 700, and a first gas booster 710 is provided between the waste gas outlet q and the hydrogen bottle 700. The first gas booster 710 is, for example, a gas booster pump. For example, the hydrogen in the waste gas collection bottle 500 can flow from the waste gas outlet q to the first gas booster 710, and the first gas booster 710 controls the hydrogen to flow downward, that is, to flow back to the hydrogen bottle 700, so as to realize the recycling of hydrogen and save costs. At the same time, a third switch valve 711 is provided between the first gas booster 710 and the waste gas outlet q, and the third switch valve 711 controls whether the hydrogen in the waste gas collection bottle 500 flows to the first gas booster 710, so as to control the amount of hydrogen flowing and avoid the influence of excessive hydrogen on the reduction reaction.

[0053] The embodiment of the utility model connects the chlorination device 100, the first fractional condenser 200, the distillation device 300 and the reduction device 400 in sequence, so that the production system 10 of high-purity antimony is an integrated system, thereby, the chlorination reaction, distillation purification treatment and reduction reaction in the step of preparing high-purity antimony all occur in the same system, thereby realizing the continuous production of high-purity antimony. Secondly, by setting the first fractional condenser 200 and the distillation device 300, antimony trichloride and impurities can be deeply separated, thereby improving the purity of antimony trichloride, thereby improving the purity of high-purity antimony prepared subsequently.

[0054] Secondly, by providing the first gas booster 710 and the second gas booster 610, the separation rate of the gaseous substances can be increased, and the chlorine and hydrogen can be controlled to flow to the chlorine bottle 600 and the hydrogen bottle 700 respectively, so as to ensure the recycling of chlorine and hydrogen, and at the same time improve the production efficiency. At the same time, by connecting the waste gas collection bottle 500 with the second graded condenser 320 and the reduction device 400, the waste gas substances generated during the reaction process can be fully absorbed, and the raw materials can be fully utilized, thereby reducing the emission of waste gas substances.

[0055] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high purity antimony production system (10), characterized in that: include: A chlorination device (100), wherein the chlorination device (100) is provided with a chlorination gas outlet (c); A first fractional condenser (200), wherein the first fractional condenser (200) is provided with a first condensation air inlet (d) and a first condensation liquid outlet (e), and the first condensation air inlet (d) is connected to the chlorination air outlet (c); A distillation device (300), wherein the distillation device (300) is provided with a primary distillation liquid inlet (g) and a final distillation gas outlet (m), and the primary distillation liquid inlet (g) is connected to the first condensation liquid outlet (e); A reduction device (400), wherein the reduction device (400) is provided with a first reduction air inlet (n), and the first reduction air inlet (n) is connected to the final distillation air outlet (m); The chlorination device (100) is used to chlorinate the raw material entering the chlorination device (100) to obtain a chlorinated product; the first fractional condenser (200) is used to condense the chlorinated product to separate and obtain a condensed product; the distillation device (300) is used to distill the condensed product entering the distillation device (300) to obtain a distillation product; and the reduction device (400) is used to reduce the distillation product entering the reduction device (400) to obtain high-purity antimony.

2. The high purity antimony production system (10) according to claim 1, characterized in that: The distillation equipment (300) comprises: A first distillation tower (310), wherein the primary distillation liquid inlet (g) is disposed on the first distillation tower (310), and the first distillation tower (310) is also provided with a primary distillation gas outlet (h); A second fractional condenser (320), wherein the second fractional condenser (320) is provided with a second condensation air inlet (i) and a second condensation liquid outlet (k), and the second condensation air inlet (i) is connected to the primary distillation air outlet (h); A second distillation tower (330), wherein a final distillation liquid inlet (l) is provided on the second distillation tower (330), wherein the final distillation liquid inlet (l) is connected to the second condensation liquid outlet (k), and the final distillation gas outlet (m) is provided on the second distillation tower (330).

3. The high purity antimony production system (10) according to claim 2, characterized in that: The first distillation tower (310) is provided with a first temperature control component, and the first temperature control component is used to heat the first distillation tower (310) and monitor the temperature inside the first distillation tower (310); The second distillation tower (330) is provided with a second temperature control component, and the second temperature control component is used to heat the second distillation tower (330) and monitor the temperature inside the second distillation tower (330); The chlorination device (100) is provided with a third temperature control component, and the third temperature control component is used to heat the chlorination device (100) and monitor the temperature inside the chlorination device (100); The reduction device (400) is provided with a fourth temperature control component, and the fourth temperature control component is used to heat the reduction device (400) and monitor the temperature inside the reduction device (400) at the same time.

4. The high purity antimony production system (10) according to claim 2, characterized in that: The high-purity antimony production system (10) also includes a waste gas collection bottle (500); the second fractional condenser (320) is provided with a first condensation outlet (j), and the reduction device (400) is provided with a first reduction outlet (p), and the first condensation outlet (j) and the first reduction outlet (p) are respectively connected to the waste gas collection bottle (500).

5. The high purity antimony production system (10) according to claim 4, characterized in that: The reduction device (400) is provided with a second reduction air inlet (o) connected to a hydrogen bottle (700); the waste gas collection bottle (500) is provided with a waste gas outlet (q), and the waste gas outlet (q) is connected to the hydrogen bottle (700).

6. The high purity antimony production system (10) according to claim 5, characterized in that: A first gas booster (710) is provided between the exhaust gas outlet (q) and the hydrogen cylinder (700).

7. The high purity antimony production system (10) according to claim 1, characterized in that: The chlorination device (100) is provided with a fluidized bed reactor (140); the bottom of the chlorination device (100) is provided with a chlorine gas inlet (b) connected to a chlorine gas bottle (600); the first fractional condenser (200) is provided with a second condensation gas outlet (f), and the second condensation gas outlet (f) is connected to the chlorine gas bottle (600).

8. The high-purity antimony production system (10) according to claim 7, characterized in that: A second gas booster (610) is provided between the second condensation gas outlet (f) and the chlorine gas cylinder (600).

9. The high purity antimony production system (10) according to claim 1, characterized in that: The angle between the reduction device (400) and the direction where the center of gravity of the reduction device (400) is located is 63 to 75 degrees.

10. The high purity antimony production system (10) according to claim 9, characterized in that: The reduction device (400) is provided with a second reduction air inlet (o), and the height from the first reduction air inlet (n) to the ground is greater than the height from the second reduction air inlet (o) to the ground.

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