Distillation, condensation and collection device
By designing a split collector and ejection fixture, the problems of difficult collection and low purity of ytterbium metal in existing technologies have been solved, achieving efficient and convenient collection and high-purity preparation of ytterbium metal, and reducing costs.
Patent Information
- Application Number
- CN202423302452.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the existing technology, semiconductor material distillation collectors are difficult to remove metal ytterbium, which leads to damage to the collector and low purity. The existing technology cannot solve the problem of distillation collectors. In the existing technology, the exhaust effect during the distillation process is not good, and it is difficult to prevent the collector from being pushed up by the gas, which affects the purity and efficiency.
A split collector was designed, with rectangular and circular metal sheets installed on the inner wall. It is connected to the exhaust gas collection tank by bolts and flexible pipes. A top-out tooling is set up to facilitate collection and disassembly, ensuring sealing and exhaust functions.
It enables efficient and convenient collection and disassembly of ytterbium metal, prevents the collector from being lifted by gas, ensures a high-purity and efficient distillation process, and reduces costs.
Smart Images
Figure CN223716406U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of semiconductor material distillation collection, and specifically relates to a distillation condensation collection device. BACKGROUND
[0002] Currently, distillation collectors are mainly made of graphite or metal materials (such as molybdenum or tungsten) in a semi-spherical design. However, in actual operation, it is difficult to directly remove the metal ytterbium from the inside of the collector, which usually requires the destruction of the collector or complex disassembly, not only damaging the collector itself, but also possibly introducing new impurities, affecting the purity of the metal ytterbium. Therefore, the collector is often only used once, resulting in high cost. In the production process, the distillation product needs to be removed by vigorous knocking, which not only takes time, but also has poor exhaust effect during the distillation process, lacking a specially designed exhaust passage. This may cause the gas pressure to increase continuously when collecting the gaseous metal ytterbium, easily causing the collector to be lifted up, damaging the entire distillation collection process, causing loss and purity reduction of the metal ytterbium. In view of this, we propose a new type of distillation condensation collection device. SUMMARY
[0003] To solve the above problems, that is, to solve the problems raised in the above background technology, the utility model provides a distillation condensation collection device, which comprises a crucible and a collector, the upper end opening of the crucible is provided with the collector, the collector is a split structure, the inner wall of the collector is provided with a rectangular metal sheet and a circular metal sheet, the rectangular metal sheet is installed in close contact with the inner wall circumference of the collector, a through hole is formed in the top end of the collector, a bolt is installed corresponding to each through hole, a bolt vent hole is formed in the center of the bolt, and a lug is arranged on the left and right sides of the collector.
[0004] The utility model further provides that: it also includes an ejection tool, and the ejection tool comprises an ejection plate and an ejection rod.
[0005] The utility model further provides that: the collector is buckled on the crucible, and a groove matched with the outer edge of the crucible is arranged at the interface between the lower end of the collector and the crucible.
[0006] The utility model further provides that: the bolt is connected to the waste gas collection tank through a flexible pipeline.
[0007] The utility model has the beneficial technical effects that:
[0008] 1. Prevents lifting up: the rectangular metal sheet 4 and the circular metal sheet 5 are designed in a split structure, there is a gap between the two to allow airflow, and the bolt, the bolt vent hole and the flexible pipeline are connected to the waste gas collection tank, effectively preventing the collector from being lifted up by the gas during the distillation process.
[0009] 2、Convenient collection and disassembly: the collector is composed of two halves of 10mm thick cast iron, after the collection is completed, the distillation products and metal sheets can be easily ejected through the ejecting tool, the whole collection process is simple and efficient, and the further processing and cutting of the metal ytterbium are facilitated to obtain the required size and shape.
[0010] 3、Good sealing and installation: the lower end of the collector is provided with a groove and a clamping joint with the outer edge of the crucible, the installation is convenient and the sealing is good, the distillation reaction in the high-temperature vacuum environment is ensured to proceed smoothly, the interference of external factors on the reaction is reduced, and the purity and yield of the metal ytterbium are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 The structure of the utility model is shown.
[0012] Fig. 2 The collector of the utility model is shown.
[0013] Fig. 3 The ejecting tool is shown.
[0014] Reference signs: 1, crucible, 2, collector, 3, ejecting tool, 4, rectangular metal sheet, 5, circular metal sheet, 6, through hole, 7, bolt, 8, bolt vent hole, 9, supporting lug, 10, fastening bolt, 11, ejecting plate, 12, ejecting rod. DETAILED DESCRIPTION
[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0016] Please refer to Figs. 1-3The utility model provides a technical scheme: a distillation condensation collection device, including crucible 1, collector 2 and ejection tool 3, and ejection tool 3 includes ejection plate 11 and ejection rod 12.Collector 2 is installed at the upper end opening of crucible 1, and collector 2 is buckled on crucible 1, and the interface between the lower end of collector 2 and crucible 1 is provided with a groove matched with the outer edge of crucible 1 to realize the clamping installation of crucible 1 and collector 2.Collector 2 is of split type structure, and the split type structure is convenient for taking out distillation products after collection, and the inner wall of collector 2 is provided with rectangular metal sheet 4 and circular metal sheet 5.The rectangular metal sheet 4 is closely attached to the inner wall of collector 2.In actual operation process, the staff first places circular metal sheet 5 into collector 2, then bends rectangular metal sheet 4 to make it attach to the shape of the inner wall of collector 2, and places it on the inner wall.Because rectangular metal sheet 4 has certain ductility, the edge part of rectangular metal sheet 4 can be curled to the inner wall of collector 2.In this way, rectangular metal sheet 4 and circular metal sheet 5 can be closely clamped on the inner wall of collector 2, and they can be firmly fixed on the inner wall even if collector 2 is inverted.
[0017] The top end of collector 2 is provided with 8mm through hole 6, and each through hole 6 is provided with bolt 7, the center of bolt 7 is drilled with 3mm bolt air hole 8 by drilling machine, and bolt 7 is connected to waste gas collection tank through flexible pipeline.Because rectangular metal sheet 4 and circular metal sheet 5 are designed in a split type, there is a gap between the two to allow gas flow, so that the exhaust function is realized, and the collector is effectively prevented from being lifted by gas during gas collection.Two supporting ears 9 are arranged on the left and right sides of collector 2, and the centers of the two supporting ears 9 on the same side are provided with fastening bolt 10.
[0018] The detailed connection means is the technology known in the art, and the working principle and process are mainly introduced as follows:
[0019] Principle: taking ytterbium oxide as raw material and metal lanthanum as reducing agent, metal ytterbium is directly prepared by reduction distillation under high temperature and high vacuum conditions.The reducing agent utilizes the characteristics that the vapor pressure of metal ytterbium is much larger than that of metal lanthanum at the reduction temperature, lanthanum atoms replace ytterbium ions in ytterbium oxide, and metal ytterbium is distilled from the liquid alloy and condensed and solidified in the receiver.The condensed metal ytterbium continues to sublimate and purify with the increase of temperature, and is separated from impurities lanthanum and rare earth oxide, and is condensed again in the receiver.
[0020] The main reaction in the reduction process is: Yb2O3 (s) + 2La (l) = 2Yb (g) ↑ + La2O3: (s)
[0021] Working process: the pressed cake of the mixture of ytterbium and lanthanum is placed in the crucible 1 of the device, and the collector 2 is buckled, and placed in the vacuum distillation furnace, and the metal melt is heated and evaporated in the high-temperature vacuum environment of 1.33*10-3~1.33*10-4Pa at 800 DEG C. The advantage of the method is that the metal will not react with air or other materials, and the impurities with low boiling point and high vapor pressure can be removed. By heating in a vacuum high-pressure environment, the required metal ytterbium and lanthanum mixture is converted into a vapor state. Since lanthanum is more active in chemical properties, and lanthanum and ytterbium belong to the same group of elements, lanthanum will react with other substances in the raw material first to form lanthanum compounds. These lanthanum compounds are in the form of solid impurities and are left in the crucible, and will not vaporize like metal ytterbium and rise to the collector. That is, other impurities or non-target products generated in the system will not enter the gas state and move to the collector, so as to realize the purification of high-purity metal ytterbium.
[0022] After the metal ytterbium is converted into a gaseous state and rises with the gas flow, the metal ytterbium in the furnace basically completes the distillation after the temperature reaches 800 DEG C and remains constant for 1 hour. Then stop heating and let the furnace cool to room temperature. The metal ytterbium in the gas recondenses into a solid state when it encounters the cooled collector, and adheres to the surface of the rectangular metal sheet 4 and the circular metal sheet 5, completing the preparation process of the metal ytterbium.
[0023] The collector 2 is two halves of 10mm thick cast iron. After the collection is completed, the fastening bolts 10 on the Tors 9 are disassembled, the two halves of cast iron are separated, and the rectangular metal sheet 4 and the circular metal sheet 5 with high-purity metal ytterbium adhered are taken out. Or all the bolts 7 on the top of the collector 2 are disassembled, the ejection rod 12 is aligned with the through hole 6 on the collector 2, and the ejection plate 11 is pressed downward, so that the rectangular metal sheet 4 and the circular metal sheet 5 with high-purity metal ytterbium adhered can also be ejected.
[0024] The metal ytterbium on the sheet can be obtained after further processing and cutting. The whole collection process is simple and efficient, and the purity of the collected metal ytterbium is very high, which meets the demand of industrial application for high-purity metal ytterbium.
[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A distillation condensation collection device comprising a crucible (1) and a collector (2), characterized in that: The upper end opening of the crucible (1) is provided with a collector (2), the collector (2) is a split structure, the inner wall of the collector (2) is provided with a rectangular metal sheet (4) and a circular metal sheet (5), the rectangular metal sheet (4) is arranged in close contact with the inner wall circumference of the collector (2), the top end of the collector (2) is provided with a through hole (6), each through hole (6) is provided with a bolt (7), the center of the bolt (7) is provided with a bolt air hole (8), the left and right sides of the collector (2) are respectively provided with a lug (9), the centers of the two lugs (9) on the same side are provided with a fastening bolt (10).
2. A distillation condensing collection device according to claim 1, wherein: Further comprising an ejection tool (3), the ejection tool (3) comprises an ejection plate (11) and an ejection rod (12).
3. A distillation condensing collection device as defined in claim 1, wherein: The collector (2) is buckled on the crucible (1), and the lower end of the collector (2) is provided with a groove matched with the outer edge of the crucible (1) at the interface of the crucible (1).
4. The distillation condensing collection device of claim 1, wherein: The bolt (7) is connected to the waste gas collecting tank through a flexible pipeline.