Separation tank for mixture

Abstract

To provide a separation tank for a mixture having a structure capable of responding to a demand for an increase in the scale of a reaction in the separation tank for separating the mixture comprising a plurality of fluids not dissolved in each other.SOLUTION: A separation tank for separating a mixture composed of a plurality of fluids that are immiscible with each other, the separation tank comprising a hollow tube, a first lid disposed at one end of the hollow tube, and a second lid disposed at the other end of the hollow tube, the hollow tube constituting a storage tank for storing the mixture, the separation tank comprising: One of the fluids generated by separation of the mixture stored in the storage tank is discharged from a first lid portion, and the other of the fluids generated by separation of the mixture stored in the storage tank is discharged from a second lid portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a separation vessel for separating a mixture of immiscible fluids. [Background technology]

[0002] The following Patent Document 1 describes a mixer settler having a mixing section that mixes multiple liquids and a separation tank that stores and separates the multiple liquids mixed in the mixing section. The mixing section is a flow path consisting of a groove or slit-shaped through-hole provided in a substrate having a predetermined thickness. The separation tank is a recess or through-hole provided in the substrate. The mixing section and separation tank are in communication with each other.

[0003] In the above-mentioned tabletop mixer settler, the base is covered with a lid, and the base and the lid are fixed in a liquid-tight state, thereby integrating the mixing section and the separation tank into a single device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2022-41098 Summary of the Invention [Problem to be solved by the invention]

[0005] In the device of Patent Document 1, a recessed groove or a slit-shaped through-hole is provided in a base material, and a lid is placed over the base material to fix the base material and the lid in a liquid-tight state.

[0006] In the device of Patent Document 1, increasing the scale of the reaction can be achieved by increasing the thickness of the substrate provided with grooves or slit-shaped through-holes. Alternatively, increasing the area of ​​the substrate provided with grooves or slit-shaped through-holes can also be achieved. However, excessively increasing the thickness of the substrate makes it difficult to form grooves or slit-shaped through-holes in the substrate. Furthermore, increasing the area of ​​the substrate provided with grooves or slit-shaped through-holes requires increasing the area of ​​the lid. Increasing the area between the substrate and the lid requires processing a large area flat to ensure liquid-tightness between the substrate and the lid, which requires high processing precision and can result in problems such as increased processing costs and reduced yields.

[0007] Thus, if the design of the device of Patent Document 1 is to be adapted to meet the demand for larger scale, problems arise, such as the need for special manufacturing equipment and a decrease in yield due to the strict processing precision required.

[0008] An object of the present invention is to provide a separation vessel for separating a mixture consisting of multiple fluids that are not soluble in each other, which has a structure that can meet the demand for large-scale reactions. [Means for solving the problem]

[0009] The above-mentioned problems are solved by a separation tank used in tabletop experiments to separate a mixture consisting of multiple fluids that are not soluble in each other, the separation tank having a hollow tube, a first lid portion disposed at one end of the hollow tube, and a second lid portion disposed at the other end of the hollow tube, the hollow tube forming a storage tank for storing the mixture, one of the fluids generated by separation of the mixture stored in the storage tank being discharged from the first lid portion, and the other of the fluids generated by separation of the mixture stored in the storage tank being discharged from the second lid portion.

[0010] The above-mentioned problems are solved by a separation tank used in tabletop experiments to separate a mixture consisting of multiple fluids that are not soluble in each other, the separation tank having a supply section, a first lid section, a second lid section, and a hollow tube, the supply section having a through hole and a shape in which a hollow tube is placed in the through hole, the hollow tube forming a storage tank for storing the mixture, one of the fluids generated by separation of the mixture stored in the storage tank being discharged from the first lid section, and the other of the fluids generated by separation of the mixture stored in the storage tank being discharged from the second lid section.

[0011] The volume of the separation tank can be determined by the volume of the hollow tube. For example, the volume of the separation tank can be increased by increasing the length of the hollow tube or the inner diameter of the hollow tube.

[0012] In the separation tank, the supply unit preferably has a base with the through-hole formed therein, the through-hole being cylindrical, and the inner wall of the supply unit is provided with a through-hole for supplying the mixture, and when a radial line extending radially from the center of the cylindrical through-hole is imagined, the center line of the through-hole for supplying the mixture is positioned at a position that intersects the radial line. With this configuration, the mixture supplied to the supply unit can be rectified so that it swirls along the inner wall. This allows one fluid to be separated from the other fluid more smoothly.

[0013] In the separation tank, the hollow tube preferably has a cylindrical inner wall. With this configuration, the fluid in the hollow tube can be rectified so as to swirl along the cylindrical inner wall.

[0014] In the separation tank, the supply unit preferably has a through-hole for discharging the purified impurities into the storage tank, thereby enabling impurities precipitated near the interface between one fluid and the other fluid in the storage tank to be discharged outside the reaction system.

[0015] In the separation tank, the hollow tubes preferably include a first hollow tube and a second hollow tube, and the first lid portion preferably has a shape having a recess in its base portion for connecting the end of the first hollow tube.

[0016] In the separation tank, the hollow tubes preferably include a first hollow tube and a second hollow tube, and the second lid portion preferably has a shape having a recess in its base portion for connecting the end of the second hollow tube.

[0017] In the separation tank, the hollow tube may be made of, for example, stainless steel, Hastelloy, glass material, or fluorine-based resin.

[0018] In the separation tank, the supply part, the first lid part, or the second lid part can be made of, for example, stainless steel, Hastelloy, or fluorine-based resin. [Effects of the Invention]

[0019] According to the present invention, it is possible to provide a separation vessel for separating a mixture of a plurality of fluids that are not soluble in each other, the separation vessel having a structure that can accommodate large-scale reactions. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 2 is a perspective view showing an embodiment of a separation tank. [Figure 2] FIG. 2 is a front view of the separation tank of FIG. 1. [Figure 3] FIG. 3 is a cross-sectional view taken along the line AA′ in FIG. 2. [Figure 4] FIG. 2 is a plan view of the separation tank of FIG. [Figure 5] FIG. 2 is a bottom view of the separation tank of FIG. 1. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along the line BB′ in FIG. 7. [Figure 9] FIG. [Figure 10]FIG. 2 is a plan view of the first lid portion. [Figure 11] FIG. 11 is a cross-sectional view taken along the line CC′ in FIG. [Figure 12] FIG. [Figure 13] FIG. 2 is a plan view of the second lid portion. [Figure 14] FIG. 14 is a cross-sectional view taken along the line DD′ in FIG. [Figure 15] FIG. 2 is an explanatory diagram illustrating a configuration example of a mixer settler. [Figure 16] FIG. 10 is a perspective view showing another embodiment of the separation tank. [Figure 17] FIG. 17 is a plan view of the separation tank of FIG. 16. [Figure 18] FIG. 17 is a cross-sectional view taken along line EE′ of FIG. [Figure 19] FIG. 10 is a front view showing another embodiment of the separation tank. [Figure 20] FIG. 4 is a cross-sectional view showing another embodiment of the separation tank. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, embodiments of the mixture separation tank of the present invention will be described. The embodiments shown below are merely limited examples, and the technical scope of the present invention is not limited to the embodiments shown below.

[0022] [First embodiment] A separation tank 1a according to the first embodiment is shown in FIGS.

[0023] The separation tank 1a of this embodiment is a separation tank 1a for separating a mixture of multiple mutually immiscible fluids. The separation tank 1a is a so-called benchtop device, with dimensions suitable for use on a laboratory bench. Examples of multiple mutually immiscible fluids include a mixture of one fluid with a higher polarity than the other fluid, such as a water-based liquid and an oil-based liquid, and another fluid with a lower polarity than the other fluid. Other examples include a mixture of gas and liquid, which, after mixing, separate into gas and liquid over time. The one fluid or the other fluid may contain other substances. Examples of other substances include any substance that can be extracted by liquid-liquid extraction using the difference in solubility between the one fluid and the other fluid. The term "one fluid and another fluid" refers not only to the case where the fluids separate into two layers, but also to the case where the fluids separate into multiple layers, such as a gas layer, a hydrophobic liquid phase, and a hydrophilic liquid phase, in order from top to bottom.

[0024] Separation tank 1a can be combined with a mixing section 9, as shown in FIG. 15, to form a tabletop mixer-settler. The same applies to separation tanks 1b and 1c, which will be described later. The mixer-settler shown in FIG. 15 includes a mixing section 9, a flow path 81 for supplying one fluid to mixing section 9 using a pump 91, a path 82 for supplying the other fluid to mixing section 9 using a pump 92, a path 83 for transporting a mixture containing one fluid and the other fluid mixed in mixing section 9 from mixing section 9 to separation tank 1a, separation tank 1a, a path 84 for discharging impurities from separation tank 1a using a pump 93, a path 85 for discharging a low-density fluid, and a path 86 for discharging a high-density fluid. The flow rate of path 85 can be adjusted using a valve 94. The flow rate of path 86 can be adjusted using a valve 95. The position of the interface in separation tank 1 can be adjusted by adjusting the flow rates of pump 91, pump 92, path 85, or path 86. Each path is made up of a hollow tube capable of transporting a fluid, and can be made up of, for example, a metal material such as stainless steel or Hastelloy, or a synthetic resin material such as PFA, PTFE, or PFE.

[0025] A low density refers to a density of one fluid being lower than the density of the other fluid. A high density refers to the opposite. The mixer 9 is not particularly limited, but a tabletop reactor having a Y-shaped mixing channel as shown in Figures 1 and 4 of JP 2017-13706 A can be suitably used. One fluid is supplied to one of the two inlet channels, and the other fluid is supplied to the other of the two inlet channels, and the one fluid and the other fluid are mixed at the confluence. The confluenced fluids are discharged from the discharge channel. The mixer is not limited to the above example, and may be any unit capable of mixing multiple fluids that are not soluble in each other. For example, a mixer having two or more inlet channels or a larger-capacity tabletop mixer may be used.

[0026] As shown in FIG. 3 and other figures, separation tank 1a has supply unit 11a, first lid unit 12a, second lid unit 13a, first hollow tube 14, and second hollow tube 15. Supply unit 11a has a through hole 111. First hollow tube 14 is connected to one side of through hole 111, and second hollow tube 15 is connected to the other side of through hole 111a. In the example of FIG. 3, through hole 111 communicates with the interior of first hollow tube 14 and the interior of second hollow tube 15. An end of first hollow tube 14 is connected to first lid unit 12a, and an end of second hollow tube is connected to second lid unit 13a. First hollow tube 14 and second hollow tube 15 together constitute storage tank 2, which stores the mixture therein. One of the fluids generated by separation of the mixture stored in the storage tank 2 is discharged from the first lid 12a, and the other of the fluids generated by separation of the mixture stored in the storage tank 2 is discharged from the second lid 13a. The supply unit 11a, the first lid 12a, and the second lid 13a are shaped to be spaced apart along the extension direction of the first hollow tube 14 or the second hollow tube 15. The first hollow tube 14 or the second hollow tube 15 is a cylindrical body having circular openings at both ends.

[0027] As shown in FIG. 6, the supply unit 11a has a shape in which the through-hole 111 is provided in a substantially cylindrical base 112, and the through-hole 111 is cylindrical. A through-hole 113 for supplying the mixture is provided in the inner wall of the supply unit 11. As shown in FIG. 7, assuming a radial line R1 extending radially from the center of the cylindrical through-hole 111, the center line C1 of the through-hole 113 for the mixture is located at a position intersecting the radial line R1. In the example shown in FIG. 7, the mixture supplied from the through-hole 113 into the supply unit 11a is rectified clockwise along the inner wall of the supply unit 11a. This configuration reduces turbulence when supplying the mixture to the supply unit 11a, thereby reducing pressure loss and allowing the relatively high-density fluid contained in the mixture to move smoothly to the bottom of the storage tank. Furthermore, the interface between one fluid and the other fluid contained in the mixture is less likely to be disturbed by turbulence. The inner diameter of through-hole 113 is smaller than the inner diameter of through-hole 111. When the mixture is supplied to supply part 11a, the flow may be straightened so as to swirl counterclockwise.

[0028] As shown in Figures 6 to 8, the supply unit 11a has an impurity discharge through-hole 114 for discharging impurities generated in the storage tank 2. The center line C2 of the impurity discharge through-hole 114 is, for example, located at a position intersecting the center of the through-hole 111. When impurities are generated in the mixture, they tend to collect at the interface between one fluid and the other. If impurities remain near the interface, the location of the interface becomes difficult to determine, which can hinder the operation of the device. For example, the interface may exceed the allowable upper or lower limit, preventing the intended reaction from occurring properly. By adjusting the flow rate of a pump or valve so that the interface between one fluid and the other fluid is located in the supply unit 11a, the generated impurities can be discharged outside the mixing tank 2 and prevent blockage of the flow path. Impurities can be generated, for example, by unintended side reactions when low-purity raw materials are used. Impurities have various properties, such as solid, liquid, gas, nonpolar, polar, hydrophobic, or hydrophilic.

[0029] As shown in FIGS. 6 to 8, the supply portion 11a is generally cylindrical with a diameter larger than its height. The through-hole 111 is located in the center of the circle. Circular recesses 115, each with a diameter larger than the through-hole 111, are provided on the top and bottom surfaces of the cylinder. The bottoms of the recesses 115 are flat, and as shown in FIG. 3, these flat surfaces support the lower end of a first hollow tube 14 (described later) and the upper end of a second hollow tube 15 (described later). An annular gasket 21 is fitted around the lower end of the first hollow tube 14. Similarly, an annular gasket 21 is fitted around the upper end of the second hollow tube 15. The recess 115 has a space to accommodate the gasket 21. The gasket 21 is pressed against the sidewall of the recess 115 to ensure liquid-tightness or air-tightness. Ring-shaped retaining members 23 are fastened to the top and bottom surfaces of the supply portion 11a with screws 24. The supply portion 11a and the ring-shaped retaining member 23 are provided with a through hole and a screw hole for inserting a screw 24. The retaining member 23 closes the opening of the recess.

[0030] The first hollow tube 14 or the second hollow tube 15 has a cylindrical inner wall and an outer wall. Therefore, as described above, the mixed flow flows along the cylindrical interior. Since the exterior is also cylindrical, the exterior of the device does not become bulky.

[0031] Because the first hollow tube 14 and the second hollow tube 15 are made of glass, it is possible to observe the state inside the first hollow tube 14 and the second hollow tube 15 from outside the separation tank 1a. This makes it possible to visually confirm the position of the interface between one fluid and the other fluid. It is also possible to cause a photochemical reaction by irradiating light from outside the separation tank. General-purpose glass tubes are available, and the first hollow tube 14 and the second hollow tube 15 can be made from general-purpose glass tubes.

[0032] When the position of the interface in separation tank 1a is visually observed and the pump flow rate is manually controlled, it is preferable that the first hollow tube and the second hollow tube are made of a material that allows the interior to be seen through, such as glass. When the position of the interface in separation tank 1a is detected by a sensor, as described below, the first hollow tube and the second hollow tube may be made of a non-transparent material, such as stainless steel, Hastelloy, or a fluororesin such as PEEK, PTFE, or PFE.

[0033] As shown in Figure 3, the end of the first hollow tube 14 is connected to the first lid portion 12a. As shown in Figure 11, the first lid portion 12a is generally cylindrical with a diameter larger than its height.

[0034] As shown in FIG. 11, the first cover 12a has a circular recess 121 that connects to the upper end of the first hollow tube 14. The bottom of the recess 121 is flat, and as shown in FIG. 11, this flat surface supports the upper end of the first hollow tube 14, which will be described later. An annular gasket 21 is fitted onto the upper end of the first hollow tube 14. The recess 121 has a space for receiving the gasket 21. As shown in FIG. 3, the gasket 21 is pressed against the side wall of the recess 121 to ensure liquid-tightness or air-tightness. A ring-shaped retaining member 23 is fastened to the underside of the first cover 12a with a screw 24. The supply portion 11a and the ring-shaped retaining member 23 are provided with a through hole and a screw hole for inserting a screw. The retaining member 23 closes the opening of the recess.

[0035] The underside of first lid 12a has a recess 122 on the inside of recess 121, the recess 122 having an inclined surface whose width narrows toward the top of first lid 12a. Recess 122 has a truncated cone shape. A through-hole 123 is provided at the upper end of recess 122 for discharging low-density fluids stored in separation tank 1a. Path 85 for discharging low-density fluids is connected to through-hole 123. Through-hole 123 is provided so as to penetrate the bottom portion of first lid 12a.

[0036] First cover 12a liquid-tightly or air-tightly seals the end of the first hollow tube. One of the fluids produced by separation of the mixture stored in separation tank 1a is discharged from first cover 12a via path 85, which discharges the low-density fluid. The flow rate of the fluid can be adjusted by valve 94. Because recess 122 has the above-mentioned inclined surface, it rectifies the flow of the one fluid when it is discharged from through-hole 123, reducing the occurrence of turbulence. This reduces pressure loss.

[0037] As shown in FIG. 3, the first lid 12a has a through-hole 124 for fixing a sensor 125 that detects the position of the interface between one fluid and the other fluid in the separation tank 1a. In FIG. 3, the rod-shaped sensor 125 is inserted through the through-hole 124 and fixed with a screw provided at the upper end of the through-hole. The sensor 125 is used, for example, when detecting the position of the interface and optimizing the position of the interface based on the position information. The sensor 125 may be omitted when the position of the interface is confirmed visually and adjusted manually. For example, a capacitance sensor can be used as the sensor 125.

[0038] As shown in Fig. 3, the end of the second hollow tube 15 is connected to the second lid portion 13a. As shown in Fig. 14, the second lid portion 13a is substantially cylindrical with a diameter larger than its height.

[0039] As shown in Figures 13 and 14, the second cover 13a has a circular recess 131 to which the lower end of the second hollow tube 15 is connected. The bottom of the recess 131 is flat, and as shown in Figure 3, this flat surface supports the lower end of the second hollow tube 15, which will be described later. An annular gasket 21 is fitted onto the lower end of the first hollow tube 14. The recess 131 has a space to receive the gasket 21. The gasket 21 is pressed against the side wall of the recess 131 to ensure liquid-tightness or air-tightness. A ring-shaped retaining member 23 is fastened to the upper surface of the second cover 13a with a screw 24. The supply portion 11a and the ring-shaped retaining member 23 are provided with a through hole and a threaded hole for inserting the screw 24. The retaining member 23 closes the opening of the recess.

[0040] As shown in Figure 14, the upper surface of second lid 13a has a recessed hole 132 that is recessed downward inside recess 131. Recess 132 is cylindrical with a diameter larger than its height. A through-hole 133 is provided at the lower end of the side wall of recessed hole 132 for discharging the other fluid with a higher density of the fluids stored in separation tank 1a. Path 86 for discharging the fluid with a higher density is connected to through-hole 133.

[0041] The second lid 13a seals the end of the second hollow tube in a liquid-tight or air-tight manner. The other fluid produced by separation of the mixture stored in the separation tank 1a is discharged from the second lid 13a via a path 86 for discharging the fluid with a higher density. The flow rate of the fluid can be adjusted by a valve 95.

[0042] The supply part 11a, the first lid part 12a, or the second lid part 13a is preferably made of a material with excellent corrosion resistance, and can be made of, for example, stainless steel, Hastelloy, or a fluororesin such as PEEK, PTFE, or PFE.

[0043] As shown in FIG. 3, the supply unit 11a, the first lid unit 12a, or the second lid unit 13a has a plurality of positioning through-holes 31. By inserting positioning rods 32 into the positioning through-holes 31 and assembling the supply unit 11a, the first lid unit 12a, the second lid unit 13a, the first hollow tube 14, and the second hollow tube 15, the positioning of the supply unit 11a, the first lid unit 12a, and the second lid unit 13a becomes easier to determine when assembling them. The inner circumferential surface of the through-hole 31 in the second lid unit 13a is threaded. The tip of the rod 32 is a male screw. The separation tank 1a is integrated by threading the rod 32 into the second lid unit 13a. The inner circumferential surface of the through-hole in the first lid unit 13a may also be threaded.

[0044] [Second embodiment] A separation tank 1a according to a second embodiment is shown in Figures 16 to 18. Separation tank 1b of this embodiment differs in the structure in which packing 22 is connected to supply part 11b, first lid part 12b, or second lid part 13b.

[0045] A circular recess 141b is provided in the recess 121b on the underside of the first lid portion 12b to accommodate the packing 22. With the packing 22 accommodated in the recess 141b, the first hollow tube 14 is connected to the first lid portion 12b so as to be in contact with the lower end of the packing 22, thereby connecting the first hollow tube 14 and the first lid portion 12b in a liquid-tight or airtight manner.

[0046] A circular recess 131b in the upper surface of the second lid portion 13b is provided in the recess 131b, which accommodates the packing 22. With the packing 22 accommodated in the recess 142b, the second hollow tube 15 is connected to the second lid portion 13b so as to contact the upper end of the packing 22, thereby connecting the second hollow tube 15 and the second lid portion 13a in a liquid-tight or air-tight manner.

[0047] Recess 115b on the upper surface and recess 115b on the lower surface of supply unit 11b are each provided with a circular recessed groove 143b for accommodating packing 22. With packing 22 accommodated in recessed groove 143b, first hollow tube 14 is connected to supply unit 11b so as to contact the upper end of packing 22, thereby liquid-tightly or air-tightly connecting first hollow tube 14 and supply unit 11b. With packing 22 accommodated in recessed groove 143b, second hollow tube 15 is connected to supply unit 11b so as to contact the lower end of packing 22, thereby liquid-tightly or air-tightly connecting second hollow tube 15 and supply unit 11b.

[0048] The first lid body 12b and the second lid body 13b are provided with through holes 33 for inserting rod bodies 34 having male threads at their tips. The supply section 11b is provided with a through hole 35 having a threaded groove cut into its inner circumferential surface. The male thread at the tip of the rod body 34 inserted into the through hole 33 of the first lid body 12b screws into the through hole 35. The male thread at the tip of the rod body 34 inserted into the through hole 33 of the first lid body 13b screws into the through hole 35. This integrates the separation tank 1b.

[0049] [Third embodiment] A separation tank 1c according to a third embodiment is shown in Figure 19. In this embodiment, the first hollow pipe 14 is divided into upper and lower parts, and the upper and lower first hollow pipes 14 are connected by a joint member 41 having a cylindrical through-hole therein. Similarly, the second hollow pipe 15 is divided into upper and lower parts, and the upper and lower second hollow pipes 15 are connected by a joint member 41 having a cylindrical through-hole therein. The through-hole of the joint member communicates with the first hollow pipe and with the second hollow pipe. As in this embodiment, the first hollow pipe or the second hollow pipe may be divided into multiple parts.

[0050] In the separation tank 1a according to the first embodiment, the separation tank 1b according to the second embodiment, or the separation tank 1c according to the third embodiment, the capacity of the separation tank can be freely adjusted by changing the length and capacity of the first hollow tube 14 or the second hollow tube 15.

[0051] The separation tanks according to the first to third embodiments all have a shape in which a hollow tube is disposed in the through-hole of the supply section.

[0052] [Fourth embodiment] A separation tank 1d according to a fourth embodiment is shown in FIG. 20. In this embodiment, the supply unit 11a having the through-hole 111 is omitted, and the first hollow tube 14 and the second hollow tube 15 are configured as a single continuous hollow tube 14d. A mixture supply port corresponding to the through-hole 113 for supplying the mixture can be provided in the first cover 12a or the second cover 13a. In the example of FIG. 20, a through-hole 61 is provided in the first cover 12d, and a hollow tube 62 is connected to the through-hole 61. The mixture can be supplied to the separation tank 1d through the hollow tube 62. The path 83 is connected to the through-hole 61 in a liquid-tight or airtight manner by an appropriate method.

[0053] [Variations] The above-described embodiments are merely limited examples, and the technical scope of the present invention is not limited to the above-described embodiments. For example, in the examples shown in FIG. 3 or FIG. 18, the inner walls of the first hollow tube 14 and the second hollow tube 15 are configured to communicate with each other via the inner walls of the through-holes of the supply units 11a and 11b. Alternatively, the end of the first hollow tube and the end of the second hollow tube may be butted against each other within the through-holes of the supply units. Alternatively, the first hollow tube and the second hollow tube may be configured as a single continuous hollow tube. In this case, a through-hole for passing the mixture through may be provided in the first hollow tube and / or the second hollow tube so as to communicate with the through-hole for supplying the mixture.

[0054] If visibility from outside the device or light transmittance is not required, the hollow tube, first hollow tube, or second hollow tube may be made of a metal material such as stainless steel or Hastelloy, or a resin material such as PEEK, PTFE, or PFE. As with glass tubes, it is preferable to use general-purpose products that are mass-produced according to specifications for the hollow tube, first hollow tube, or second hollow tube.

[0055] The supply part, the first lid part, or the second lid part is preferably formed by cutting or molding. By using cutting or molding, it is easy to optimize the dimensions of the supply part, the first lid part, or the second lid part to match the capacity of the hollow tube, the first hollow tube, or the second hollow tube. The supply part, the first lid part, or the second lid part is particularly preferably formed by cutting. Cutting eliminates the need for a mold, making it easy to manufacture separation tanks with various capacities. When cutting, the supply part, the first lid part, or the second lid part is preferably 10 to 50 mm thick. Furthermore, by forming the first lid part or the second lid part of the first hollow tube, the second hollow tube, or the hollow tube by cutting, it is possible to eliminate the need for a mold and actively utilize hollow tubes that are available as standard products. [Explanation of symbols]

[0056] 1a Separation tank 1b Separation tank 1c separation tank 11a Supply section 11b Supply section 12a 1st lid part 12b 1st lid part 13a 2nd lid part 13b 2nd lid part 111 Through hole 14 1st hollow tube 15 2nd hollow tube 114 Through hole for discharging impurities 121 recess 131 recess 121b Recess 131b recess

Claims

1. A separation tank used in tabletop experiments to separate a mixture of multiple fluids that do not dissolve in each other. the separation tank includes a hollow tube, a first lid portion disposed at one end of the hollow tube, and a second lid portion disposed at the other end of the hollow tube; the hollow tube constitutes a reservoir for storing the mixture; One of the fluids generated by separation of the mixture stored in the storage tank is discharged from the first lid portion; A mixture separation tank in which the other of the fluids generated by separation of the mixture stored in the storage tank is discharged from the second lid portion.

2. A separation tank used in tabletop experiments to separate a mixture of multiple fluids that do not dissolve in each other. The separation tank has a supply section, a first lid section, a second lid section, and a hollow tube, the supply portion has a through hole, A hollow tube is disposed in the through hole, the hollow tube constitutes a reservoir for storing the mixture; One of the fluids generated by separation of the mixture stored in the storage tank is discharged from the first lid portion; A mixture separation tank in which the other of the fluids generated by separation of the mixture stored in the storage tank is discharged from the second lid portion.

3. the supply portion has a shape in which the through hole is provided in a base portion, and the through hole is cylindrical; a through-hole for supplying the mixture is provided in an inner wall of the supply unit; 2. The mixture separation tank according to claim 1, wherein, when a radial line extending radially from the center of the cylindrical through-hole is imagined, the center line of the through-hole for supplying the mixture is located at a position that intersects the radial line.

4. 3. A mixture separation tank according to claim 1, wherein the hollow tube has a cylindrical inner wall.

5. 3. The mixture separation tank according to claim 2, wherein the supply section has an impurity discharge through-hole for discharging impurities generated in the storage tank.

6. 3. The mixture separation tank according to claim 1, wherein the hollow tubes include a first hollow tube and a second hollow tube, and the first lid portion has a shape having a recess for connecting the first hollow tube.

7. 3. The mixture separation tank according to claim 1, wherein the hollow tubes include a first hollow tube and a second hollow tube, and the second lid portion has a shape having a recess for connecting the second hollow tube.

8. 3. The mixture separation tank according to claim 1, wherein the hollow tube, the first hollow tube, or the second hollow tube is made of stainless steel, Hastelloy, glass material, or fluororesin.

9. 3. The mixture separation tank according to claim 1, wherein the supply section, the first lid section, or the second lid section is made of stainless steel, Hastelloy, or a fluororesin.

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