Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D11/00—Solvent extraction
  • B01D11/04—Solvent extraction of solutions which are liquid
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P10/00—Technologies related to metal processing
  • Y02P10/20—Recycling

Definitions

• the volume ratio of each liquid phase participating in phase mixing in one reaction vessel is determined by the ratio of the liquid feeding rate of each liquid phase, which has an effective functional relationship with the extraction rate and back extraction rate.
• This invention relates to a phase mixing method and an apparatus for the same, characterized in that it can be set as desired completely independently of the phase mixing method.
• Two liquid phases consisting of two immiscible liquid phases are widely used in chemical techniques such as solvent extraction.
• a separation and purification method for metal elements and organic compounds it supports core industries such as the metal industry and chemical industry, and it is also one of the most important technologies as a separation and purification technology for rare metals, which is indispensable in high-tech industries.
• solvent extraction tends to cause entrainment of oil into wastewater, and is considered a method that has a large environmental impact.
• the region that participates in phase mixing (referred to as the mixed phase) may be unstable, the mixed phase may have difficulty flowing, or phase separation after the extraction reaction may be difficult. In some cases, solvent extraction may not proceed efficiently.
• phase mixing refers to mixing two liquid phases that are not miscible with each other and form an interface by stirring, shaking, etc. As a result, each liquid phase becomes finer and the area of the interface becomes larger, resulting in an emulsified state. In an emulsified state, phase transfer of substances is promoted, making it easier to reach chemical equilibrium for the extraction reaction.
• Stirring and shaking are common methods for phase mixing, but recently, methods have also been known in which phases are mixed until an emulsion is reached by ejecting droplets (for example, Patent Document 1 and Patent Document 2).
• phase separation is to separate two mixed liquid phases into respective liquid phases again. Natural separation using gravity or buoyancy, and mechanical separation using centrifugal force are common.
• the aqueous phase, which contains the components to be extracted, and the oil phase, which mainly consists of a solvent that is immiscible with water, are placed in a container such as a test tube at a fixed volume ratio and shaken thoroughly until the extraction reaction reaches chemical equilibrium.
• the extraction rate of the target component into the oil phase when performing a so-called batch test depends on the volume ratio of both phases at that time (here, the volume ratio of the oil phase to the water phase at this time is the effective (referred to as the typical oil phase/aqueous phase volume ratio).
• the effective oil phase/aqueous phase volume ratio may be increased.
• oil phase/aqueous phase liquid feeding speed ratio the ratio of the feeding speed of the oil phase to the aqueous phase
• the oil phase/aqueous phase liquid feeding speed ratio is usually This corresponds to the oil phase/aqueous phase volume ratio that participates in phase mixing (referred to as the oil phase/aqueous phase volume ratio in the mixed phase), and this corresponds to the effective oil phase/aqueous phase volume ratio mentioned regarding the batch test. do.
• the volume ratio of both phases during phase mixing that is, the volume ratio of both phases in the mixed phase is determined by the liquid feeding speed ratio of the water phase and the oil phase.
• the physical properties of the mixed phase depend on the volume ratio of the aqueous phase and the oil phase forming the mixed phase. That is, in the conventional method and apparatus, the physical properties of the mixed phase depend on the ratio of the liquid delivery speeds of both phases.
• a mixed phase consisting of two liquid phases often differ greatly depending on the mixing ratio.
• a water phase and an oil phase whether the water phase is rich or the oil phase is rich affects the stability of the mixed phase, the ease of flow of the mixed phase, the ease of entrainment, and phase separation.
• the time required may vary greatly.
• the volume ratio of each liquid phase forming the mixed phase within the reaction vessel is determined by the volume ratio of each liquid phase. Consistent with the ratio of liquid velocities. That is, the liquid phase with a slow liquid feeding rate has a small volume in the mixed phase, so entrainment is likely to occur. In addition, depending on the ratio of the feeding speeds of each liquid phase, the mixed phase may become unstable or difficult to flow, which may cause operational problems, and entrainment may easily occur or phase separation may occur. It may take a long time for this to occur, which may cause problems with drainage.
• the stability, fluidity, and separation of the mixed phase should be It becomes possible to arbitrarily set a ratio that has high compatibility and is unlikely to cause entrainment.
• An object of the present invention is to completely determine the volume ratio of each liquid phase participating in phase mixing from the ratio of the liquid feeding speed of each liquid phase, which has an effective functional relationship with the extraction rate and back extraction rate.
• An object of the present invention is to provide a method and apparatus for mixing two liquid phases that can be independently set arbitrarily.
• equipment we are strongly conscious of multi-stage equipment, where entrainment is more likely to occur and the effects of differences in the physical properties of the mixed phase are more pronounced.
• the volume ratio of each liquid phase participating in phase mixing can be arbitrarily set completely independently of the liquid feeding speed ratio of each liquid phase.
• the liquid feeding rate ratio of each liquid phase can be made to have an effective functional relationship with the extraction rate or back extraction rate.
• the basic feature of the present invention is that in the operation of performing phase mixing while feeding two liquid phases into one reaction vessel, a phase mixing area and a phase separation area are set within a certain range within the reaction vessel.
• the oil phase/water phase volume ratio in the mixed phase where the water phase and oil phase participate in phase mixing in the phase mixing region (mixed phase) becomes completely independent from the oil phase/water phase liquid transfer rate ratio.
• the main reason is that it can be set arbitrarily.
• the oil phase/aqueous phase liquid feeding rate ratio can ideally be equated with the effective oil phase/aqueous phase volume ratio, which is a parameter in the chemical equilibrium function for the extraction rate and back extraction rate. This is the gist of the present invention.
• the present invention According to the method and its device, the volume ratio can be arbitrarily set under advantageous conditions that do not cause these problems.
• an aqueous phase and an oil phase are phase mixed throughout the reaction vessel in a reaction vessel, flow as a mixed phase into a stationary vessel located next to the reaction vessel, and in the stationary vessel, gravity It utilizes a mechanism that separates both phases.
• the mixed phase and the phase-separated aqueous phase and oil phase coexist within a certain range in the reaction vessel, so there is no need for a stationary vessel, and the mixed phase There is no need to wait for phase separation.
• the volume ratio of the water phase and the oil phase in the mixed phase also changes.
• the physical properties and entrainment conditions of the mixed phase change accordingly. Therefore, in order to cope with this change, it is essential to adjust the interface position in the stationary container, for example.
• the volume ratio of the water phase and the oil phase in the mixed phase is not affected by the liquid feeding speed of both phases, the physical properties and entrainment state of the mixed phase are always constant. There is no need for numerous adjustment operations (for example, adjustment of the interface position in a static container) associated with changes in the liquid delivery rate, which are essential in conventional methods.
• the aqueous phase and the oil phase are phase-mixed throughout the reaction vessel, so the mixed phase (area disturbed by phase mixing) inevitably comes into contact with air.
• the mixed phase is always located below the phase-separated oil phase (undisturbed region), so the disturbed mixed phase does not come into contact with air. Therefore, for example, when a target component that is easily oxidized (susceptible to the influence of oxygen in the air) is to be subjected to solvent extraction, the extraction operation can be performed while suppressing the influence.
• a mechanically stirred phase mixing unit with a structure in which the light liquid phase is introduced from above and discharged from above, and the heavy liquid phase is introduced from below and discharged from below, and has stirring liquid flow blocking plates on the top and bottom.
• a mechanically stirred phase mixing unit that has a structure in which the light liquid phase is introduced from below and discharged from above, and the heavy liquid phase is introduced from below and discharged from below, and has a stirring liquid flow blocking plate only at the bottom.
• a three-stage mechanical stirring type phase mixing device with a mechanism in which the light liquid phase is introduced from above and discharged from above, and the heavy liquid phase is introduced from below and discharged from below, and has a stirring liquid flow blocking plate on the top and bottom.
• a three-stage mechanical stirring type phase mixing device with a structure in which the light liquid phase is introduced from below and discharged from above, and the heavy liquid phase is introduced from below and discharged from below, and has a stirring liquid flow blocking plate only at the bottom. .
• Distribution of phase mixing region and phase separation region in the three-stage mechanical stirring phase mixing device shown in Figure 7 A unit unit for droplet ejection type phase mixing that has flow path cross-sectional area changing plates on the top and bottom, with a mechanism in which the light liquid phase is introduced from below and discharged from above, and the heavy liquid phase is introduced from below and discharged from below. .
• Device Distribution of phase mixing regions and phase separation regions in the three-stage droplet jetting phase mixing device shown in FIG. 11.
• the volume ratio of the aqueous phase and the oil phase in the phase mixing region in solvent extraction matches the ratio of the liquid feeding speeds of the aqueous phase and the oil phase fed into the phase mixing region.
• the entire area becomes a phase mixing region (mixed phase), and the mixing volume ratio (volume ratio of both phases in the mixed phase) and the The liquid feeding speed ratio (liquid feeding speed ratio of both phases) is the same.
• the oil phase/water phase liquid feeding speed ratio is equal to the oil phase/water phase volume ratio in the phase mixing region (mixed phase), and the effective oil phase ratio has a functional relationship with the extraction rate and back extraction rate. It can be equated with the phase/aqueous phase volume ratio (the oil phase/aqueous phase volume ratio in the batch test described above). In fact, when the liquid in the phase mixing region (mixed phase) is sampled with a pipette or other dispenser and then phase separated, the oil phase/aqueous phase volume ratio at that time is the oil phase/aqueous phase liquid transfer rate ratio. is consistent with
• the phase mixing region in the reaction vessel where the aqueous phase and the oil phase participate in phase mixing is partial and maintained within a certain range, the mixing volume ratio and the liquid feeding speed ratio The relationship that they are equal does not hold.
• the ratio of the liquid feeding speeds of the aqueous phase and oil phase can be freely changed.
• the oil phase/aqueous phase volume ratio at that time will be It did not depend on the speed ratio and was always constant.
• the oil phase/aqueous phase liquid feeding rate ratio has not been discussed in relation to the effective oil phase/aqueous phase volume ratio (the oil phase/aqueous phase volume ratio in the batch test described above).
• the oil phase/aqueous phase volume ratio in the mixed phase can be maintained as set, such as the volume ratio of both phases installed in the equipment container, regardless of the oil phase/aqueous phase feeding speed ratio. The reality is that this is happening.
• the volume ratio of the oil phase/aqueous phase in the mixed phase remains the same, but the only difference in “mixing method” is that the liquid feeding speed is different, and common sense suggests that the volume ratio of the oil phase/aqueous phase in the mixed phase will change. It was difficult to imagine that there would be a difference in the effective oil phase/aqueous phase volume ratio, which should be the same.
• the volume ratio of the oil phase to the water phase in the phase mixing region (the volume ratio of the oil phase to the water phase in the mixed phase) to 1/1, and leaving the water phase feeding speed unchanged, the oil phase is fed.
• Increasing the speed alone actually increases the extraction rate, but this phenomenon was interpreted to be due to the promotion of phase mixing, which brought the process closer to chemical equilibrium. That is, in the above, it was assumed that the effective oil phase/aqueous phase volume ratio was 1/1. Therefore, in a system where phase mixing and phase separation coexist within a certain range within the same reaction vessel, the relationship between the effective oil phase/water phase volume ratio and the oil phase/water phase liquid transfer rate ratio was considered. That had never happened before.
• the oil phase/aqueous phase volume ratio in the mixed phase is always constant, for example, if the liquid feeding speed ratio of the oil phase to the aqueous phase increases, the frequency of the liquid feeding is proportional to the liquid feeding speed ratio, More of the oil phase will get a chance to contact the water phase. Therefore, while the oil phase/aqueous phase volume ratio in the mixed phase is maintained constant, the oil phase/aqueous phase liquid delivery rate ratio can be considered to correspond to the effective oil phase/aqueous phase volume ratio mentioned above. is also possible.
• the first significance of the present invention is that the oil phase/aqueous phase volume ratio in the phase mixing region (oil phase/aqueous phase volume ratio in the mixed phase) is always maintained constant regardless of the liquid feeding speed of both phases.
• oil phase/aqueous phase liquid feeding speed ratio corresponds to the effective oil phase/aqueous phase volume ratio (the oil phase/aqueous phase volume ratio in the batch test described above).
• the aqueous phase was a pH 2 aqueous nitric acid solution containing 100 ppb of each of Tb, Dy, Ho, Er, Tm, Yb, and Lu.
• An organic solution in which 35 mM 2-ethylhexyl (2-ethylhexyl)phosphonate (PC88-A) was dissolved in a mixed solvent was prepared and used in the rare earth extraction test described below.
• the rare earths extracted into the oil phase were back-extracted with a 0.5M nitric acid aqueous solution, and then the concentration was measured using an inductively coupled plasma optical emission spectrometer (ICP-OES).
• the extraction rate (%) of the above rare earths relative to the oil phase/aqueous phase liquid feeding rate ratio was determined, and the effective oil phase/aqueous phase obtained through a batch test was determined.
• the rare earth extraction rate (%) was compared to the volume ratio.
• the change in the oil phase/aqueous phase liquid transfer rate ratio in the continuous flow test corresponds to the change in the effective oil phase/aqueous phase volume ratio in the batch test, and the oil phase/aqueous phase liquid transfer rate ratio changes.
• oil phase delivery rate was fixed at 30 mL/min, and the water phase delivery rate was varied to 7.5, 15, 30, 60, and 90 mL/min.
• the oil phase/aqueous phase volume ratio in the phase mixing region was set to 1/1. That is, the same volume of water phase and oil phase were installed in the droplet ejection type unit.
• the oil phase/aqueous phase volume ratio in the mixed phase can be arbitrarily set depending on the volume ratio of the aqueous phase and the oil phase to be installed.
• the effective oil phase/aqueous phase volume ratio (the volume ratio of the oil phase/aqueous phase actually put into the test tube) was set to 4, 2, 1, 1/ The mixture was shaken thoroughly until the extraction reaction reached chemical equilibrium.
• FIG. 1(A) and 1(B) compare the results of the continuous flow test and batch test.
• FIG. 1(A) shows the results for Tb, Dy, and Ho
• FIG. 1(B) shows the results for Er, Tm, Yb, and Lu.
• the extraction rate (%) of each rare earth in the continuous flow test is slightly smaller than the value in the batch test because the extraction reaction does not reach chemical equilibrium.
• the relationship between the liquid velocity ratio and the effective oil phase/aqueous phase volume ratio in the batch test is in good agreement with the rare earth extraction rate (%). That is, it was shown that ideally, the oil phase/aqueous phase liquid feeding speed ratio can be equated with the effective oil phase/aqueous phase volume ratio.
• the oil phase/water phase transport speed ratio which can be considered as the effective oil phase/water phase volume ratio
• the oil phase/water phase ratio in the mixed phase is the oil phase/water phase ratio in the mixed phase.
• the oil phase/aqueous phase volume ratio in the mixed phase is set arbitrarily (for example, 1/1), the oil phase It has been found that the effective oil phase/aqueous phase volume ratio can be freely changed by changing the liquid feeding speed ratio of the oil phase/aqueous phase.
• the present invention is based on the phenomenon that occurs in a mechanism in which phase mixing and phase separation proceed simultaneously within one reaction vessel. Therefore, although an example of an apparatus in which phase mixing and phase separation proceed simultaneously in one reaction vessel will be shown below using a specific diagram, the present invention is not limited to this.
• the distinction between the heavy liquid phase and the light liquid phase is used instead of the distinction between the aqueous phase and the oil phase.
• the oil phase is lighter than the aqueous phase, but conversely there are also oil phases that are heavier than the aqueous phase. That is, the oil phase is not necessarily a light liquid phase, and the aqueous phase is not necessarily a heavy liquid phase.
• phase separation mechanism There is also a difference in the phase separation mechanism between a mechanism that mixes the phases by mechanical stirring (referred to as the mechanical stirring type) and a mechanism that mixes the phases by ejecting droplets (referred to as the droplet jetting type).
• phase separation can be promoted by changing the flow generated by the rotation of the stirring blade. Examples of such devices are shown in FIGS. 2, 3, and 4, but the invention is not limited thereto.
• the stirring blades of the mechanical stirrer are arranged slightly below the device container, and the light liquid phase is pumped in from above and discharged from above, while at the same time the heavy liquid phase is pumped in from below.
• It is a mechanical stirring type phase mixing device that discharges from below and has two stirring liquid flow blocking plates on the top and bottom. Note that this device is a unit that can be connected in series, and can be assembled as a multistage device with an arbitrary number of stages (see FIG. 6).
• the arrangement of the stirring blades of the mechanical stirrer is the same as in Figure 2, in which the light liquid phase is pumped in from below and discharged from above, and at the same time, the heavy liquid phase is pumped in from below and discharged from below.
• It is a mechanical stirring type phase mixing device that has two stirring liquid flow blocking plates only at the bottom. Note that, like FIG. 2, this device is also a unit that can be connected in series, and can be assembled as a multistage device with an arbitrary number of stages (see FIG. 7).
• the arrangement of the stirring blades of the mechanical stirrer is the same as in Figures 2 and 3; the light liquid phase is pumped in from below and discharged from above, and at the same time, the heavy liquid phase is pumped in from below and discharged from below.
• It is a mechanical stirring type phase mixing device that has two stirring liquid flow blocking plates on the top and bottom. Note that, like FIGS. 2 and 3, this device is also a unit that can be connected in series, and can be assembled as a multistage device with an arbitrary number of stages (not shown).
• Example 2 an example of the distribution of a phase mixing region and a phase separation region coexisting in a mechanical stirring type unit device will be shown.
• FIG 2 shows the results of examining the distribution of the phase mixing region and phase separation region when the device in Figure 2 is selected as a representative, the heavy liquid phase and the light liquid phase are installed in the device in the same volume, and the device is operated as described above. 5.
• Water containing an inorganic salt was used as the heavy liquid phase
• D70 alkane solvent
• the stirring blade of the mechanical stirrer was installed slightly below the liquid-liquid interface. At this time, it is actually true that the light liquid phase/heavy liquid phase volume ratio in the mixed phase generated by mechanical stirring is always 1/1, regardless of the light liquid phase/heavy liquid phase transport speed ratio. This was determined by pipetting the mixed phase.
• the stirring blade of the mechanical stirrer is placed too high or low, the light liquid phase/heavy liquid phase volume ratio in the mixed phase will not be 1/1, so the stirring blade should be installed at an appropriate position. There is a need.
• a cross-shaped region of phase mixing occurred in the center of the device container.
• two stirred liquid flow blocking plates installed at the top and bottom, two places are placed at the bottom of the equipment container (on the right side and the left side), and at the top of the equipment container.
• Phase separation regions appeared at three locations (right side, left side, and upper center).
• the ratio of the phase mixing region and the phase separation region changed slightly, but the ratio of these two regions was not affected by the light liquid phase/heavy liquid phase liquid transfer speed ratio. .
• FIG. 2 shows a multi-stage (three-stage) device using FIG. 2 as a unit unit
• FIG. 7 shows a multi-stage (three-stage) device using FIG. 3 as a unit unit, but the invention is not limited to this.
• FIG. 6 shows a three-stage device using FIG. 2 as a unit, and each stage is partitioned by a stage partition plate. The upper and lower sides of the stage partition plate are connected, and the light liquid phase moves to the next stage through the upper communication port and the heavy liquid phase through the lower communication port.
• FIG. 7 shows a three-stage device using FIG. 3 as a unit, and similarly to FIG. 6, each stage is partitioned by a stage partition plate.
• the upper and lower sides of the stage partition plate are in communication, but in Figure 7, the upper part is not connected, and the light liquid phase is moved to the next stage by pumping rather than through the communication port. .
• the heavy liquid phase moves from the lower communication port to the next stage, as in FIG.
• Example 3 an example of the distribution of a phase mixing region and a phase separation region coexisting in a mechanical stirring multi-stage device will be shown below.
• the three-stage device shown in Figure 7 shows phase mixing when the heavy liquid phase (water containing inorganic salts) and the light liquid phase (D70) are installed in the device in the same volume.
• the distribution of regions and phase separation regions is shown in FIG.
• the stirring blades of the mechanical stirrer were installed slightly below the liquid-liquid interface in all stages.
• the light liquid phase/heavy liquid phase volume ratio in the mixed phase does not depend on the light liquid phase/heavy liquid phase transport speed ratio. It was found that the ratio was always 1/1 in all stages (the mixed phase was actually pipetted).
• phase separation can be promoted by increasing the cross-sectional area of the portion through which the flow generated by the droplet ejection passes.
• An example of such a device is shown in FIG. 9, but the invention is not limited thereto.
• Figure 9 shows a mechanism in which the light liquid phase is pumped from below through a droplet ejector and discharged from above, and at the same time, the heavy liquid phase is pumped from below and discharged from below.
• This is a droplet ejection type phase mixing device in which one changing plate is arranged. Note that this device is a unit that can be connected in series, and can be assembled as a multistage device with an arbitrary number of stages (see FIG. 11).
• Example 4 an example of the distribution of a phase mixing region and a phase separation region coexisting in a droplet ejection type unit device will be shown.
• FIG. 10 shows that a heavy liquid phase (water containing inorganic salts) and a light liquid phase (D70) are installed in the same volume in the droplet ejection type unit device shown in FIG. 9, and are operated as described above.
• the mixed phase generated by droplet ejection can be phase-separated by increasing the cross-sectional area of the portion through which the flow passes. Also, regions of phase separation appear on either the left or right sides of the upper and lower parts of the device container.
• the phase mixing will continue. The ratio of the area to the phase-separated area remained almost unchanged. Similarly, the ratio of the two regions was hardly affected by the light liquid phase/heavy liquid phase liquid feeding rate ratio as long as it was within an appropriate liquid feeding rate range.
• FIG. 9 shows a droplet ejection type phase mixing device, which is designed as a unit with a structure that can be easily multistaged.
• FIG. 11 shows a multi-stage (three-stage) device in which the unit shown in FIG. 9 is used as a unit, but the present invention is not limited to this.
• FIG. 11 shows a three-stage device in which FIG. 9 is used as a unit, and each stage is partitioned by a stage partition plate, but the upper part of the stage partition plate is not in communication, and only the bottom part is in communication. That is, the light liquid phase is moved to the next stage by pumping rather than through the communication port, while the heavy liquid phase is moved to the next stage from the lower communication port.
• Example 5 an example of the distribution of phase mixing regions and phase separation regions coexisting in a droplet jetting multi-stage device will be shown below.
• FIG. 12 shows the distribution of the phase mixing region and the phase separation region at that time.
• the light liquid phase/heavy liquid phase volume ratio in the mixed phase is independent of the light liquid phase/heavy liquid phase transport speed ratio; It was found that the ratio was always 1/1 in the step (in fact, the mixed phase was pipetted).
• phase mixing region can be expressed over a wide range in the same manner as with a unit unit.
• the mixed phase generated by droplet ejection at each stage can be phase-separated by increasing the cross-sectional area of the part through which the flow passes, and the phase separation area is on the left and right at the top and bottom of each stage. A crab appears.
• the phase-separated heavy liquid phase moves to the next stage through a communication port provided at the bottom of the stage partition plate that separates each stage, but the light liquid phase is transferred by a pump rather than through the communication port. to move to the next stage.
• the present invention relates to a new method for phase mixing of two liquid phases and an apparatus (particularly a multi-stage apparatus) using the method, and can be expected to be used in a wide range of industrial fields such as solvent extraction and oil/water separation.
• industrial fields such as solvent extraction and oil/water separation.
• it is expected to be used in core industries such as the metal industry and chemical industry, in the production of high-tech parts that require rare metals such as lithium-ion batteries and neodymium magnets, and as a separation and purification technology in rare metal recycling.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Extraction Or Liquid Replacement (AREA)
• Physical Or Chemical Processes And Apparatus (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=88100976

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Citations (3)

• 2022
  • 2022-03-25 JP JP2022049852A patent/JP7875584B2/ja active Active
• 2023
  • 2023-01-17 CA CA3250744A patent/CA3250744A1/en active Pending
  • 2023-01-17 WO PCT/JP2023/001154 patent/WO2023181604A1/ja not_active Ceased
  • 2023-01-17 AU AU2023238813A patent/AU2023238813A1/en active Pending
  • 2023-01-17 GB GB2412892.8A patent/GB2631184A/en active Pending

Patent Citations (3)

Also Published As

Similar Documents

Legal Events