CN113908790A - Catalysis experiment platform and acousto-optic thermal catalysis experiment system - Google Patents
Catalysis experiment platform and acousto-optic thermal catalysis experiment system Download PDFInfo
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- CN113908790A CN113908790A CN202111151635.8A CN202111151635A CN113908790A CN 113908790 A CN113908790 A CN 113908790A CN 202111151635 A CN202111151635 A CN 202111151635A CN 113908790 A CN113908790 A CN 113908790A
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- catalytic
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- 238000002474 experimental method Methods 0.000 title claims abstract description 47
- 238000006555 catalytic reaction Methods 0.000 title abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 230000003197 catalytic effect Effects 0.000 claims abstract description 33
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052753 mercury Inorganic materials 0.000 claims description 5
- 229910052724 xenon Inorganic materials 0.000 claims description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 17
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000004816 latex Substances 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5082—Test tubes per se
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/02—Water baths; Sand baths; Air baths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/06—Test-tube stands; Test-tube holders
Abstract
The invention provides a catalytic experiment platform and an acousto-optic thermal catalytic experiment system. The experimental platform comprises: the inner wall of the shell is provided with a plurality of first light sources; the transparent water tank is arranged inside the shell, and the bottom of the transparent water tank is provided with a water inlet; the test-tube rack, it locates the inside of transparent basin, and is equipped with first mounting hole in the middle part of test-tube rack. The experimental system comprises: the above catalytic test platform; the constant-temperature water tank is connected with the water inlet and the water outlet through pipelines; an ultrasonic generator; the second light source, the ultrasonic generator or the second light source is arranged in the first mounting hole. The catalytic experiment platform and the acousto-optic thermo-catalytic experiment system provided by the invention can be correspondingly provided with the light source, the heat source and the ultrasonic source to carry out one, two or three principle cooperative catalytic experiments, and the experiment platform has the advantages of simple structure, convenience in assembly and disassembly, convenience in maintenance and the like; the ultrasonic generator or the second light source can also be replaced, thereby changing the catalysis condition.
Description
Technical Field
The invention relates to the technical field of experimental equipment, in particular to a catalytic experiment platform and an acousto-optic thermal catalytic experiment system.
Background
The treatment of environmental pollutants has attracted great attention. Among them, the oxidation and reduction degradation of pollutants by using the piezoelectric property of nanomaterials is an advanced catalytic technology developed in recent years. The basic principle is that under the action of an ultrasonic field, the material is separated from electron-hole due to vibration, and directly or indirectly reacts with pollutants, so that the pollutants are oxidized or reduced. However, current studies by researchers have used commercial ultrasonic cleaning machines, which typically place the material in a glass beaker and then in the cleaning tank of the ultrasonic machine. On one hand, the position in each experiment process is difficult to fix, so that the same condition is difficult to obtain, and meanwhile, the configuration is not provided with a stirring device, so that the uniform mixing of samples is not facilitated, and the effect difference of different batches of experiments is large. And when the acousto-optic synergetic catalysis experiment is carried out, the irradiation position of lamplight can be carried out only from the upper part, and the uncertainty of the light source position at each time brings great error to the experiment result. And the mode is difficult to popularize and apply in large scale in actual production, which is not favorable for the development of science and technology. Finally, the equipment is generally in a closed system, the temperature of the water bath in the tank is greatly increased due to the extension of the reaction time, and the catalytic reaction speeds are greatly different at different temperatures, so that the accuracy of the experimental result is seriously influenced.
Disclosure of Invention
The invention provides a catalytic experiment platform and an acousto-optic thermal catalytic experiment system, which are used for solving the defect of inaccurate catalytic effect of an acousto-optic thermal experiment in the prior art.
The invention provides a catalytic experiment platform, comprising:
the light source device comprises a shell, a light source and a light source, wherein a plurality of first light sources are arranged on the inner wall of the shell;
the transparent water tank is arranged in the shell, a water inlet is formed in the lower part of the transparent water tank, and a water outlet and an overflow port are formed in the upper part of the transparent water tank;
the test tube rack is arranged in the transparent water tank, and a first mounting hole is formed in the middle of the test tube rack.
According to the catalytic experiment platform provided by the invention, the test tube rack is provided with a plurality of second mounting holes distributed around the circumference of the first mounting hole and used for containing test tubes, and the first light sources and the second mounting holes are arranged in a one-to-one correspondence manner.
The invention also provides an acousto-optic thermal catalysis experimental system, which comprises:
according to the catalytic experiment platform provided by the invention;
the constant-temperature water tank is connected to the water inlet and the water outlet through pipelines;
an ultrasonic generator;
the second light source, supersonic generator or the second light source locate in the first mounting hole.
The acousto-optic thermocatalysis experiment system provided by the invention further comprises a first light source controller, wherein the first light sources are sequentially connected in parallel through a lead and are electrically connected with the first light source controller.
The acousto-optic thermal catalysis experiment system provided by the invention further comprises an ultrasonic controller, wherein the ultrasonic controller is electrically connected with the ultrasonic generator.
The acousto-optic thermal catalysis experiment system provided by the invention further comprises a water pump, wherein a water inlet of the water pump is connected to a water outlet of the transparent water tank through a pipeline, and a water outlet of the water pump is connected to a water inlet of the constant-temperature water tank through a pipeline.
The acousto-optic thermal catalysis experiment system provided by the invention further comprises a magnetic stirrer, and the magnetic stirrer is arranged at the bottom of the test tube rack.
According to the acousto-optic thermal catalysis experiment system provided by the invention, the first light source is an LED light source, and the second light source is a xenon lamp or a mercury lamp.
According to the acousto-optic thermal catalysis experiment system provided by the invention, the shell is a stainless steel shell, the transparent water tank is a quartz water tank, and the test tube rack is a stainless steel test tube rack.
The invention provides a catalytic experiment platform.A first light source is arranged on the inner wall of a shell; heating medium can be filled into the transparent water tank for water bath heating; the test tube can be clamped through the test tube rack, and the ultrasonic generator or the second light source can be placed in the first mounting hole in the center of the test tube rack. The catalytic experiment platform can be correspondingly provided with the light source, the heat source and the ultrasonic source to carry out one, two or three principle cooperative catalytic experiments, and has the advantages of simple structure, convenient assembly and disassembly and convenient maintenance.
Furthermore, the invention also provides an acousto-optic thermo-catalytic experiment system, which adopts the acousto-optic, optic and thermal cooperative catalytic experiments and can replace the ultrasonic generator or the second light source according to the catalytic requirements, thereby changing the catalytic conditions.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view of a transparent sink and test tube rack provided by the present invention;
FIG. 2 is a perspective view of a housing provided by the present invention;
FIG. 3 is a top view of the acousto-optic thermocatalytic experimental system provided by the present invention;
reference numerals:
1: a latex tube; 2: a housing; 3: a first light source;
4: a wire; 5: a water outlet; 6: a transparent water tank;
7: a test tube rack; 71: a first mounting hole; 72: a second mounting hole;
8: an ultrasonic generator; 9: an overflow port; 10: an ultrasonic controller;
11: a first light source controller; 12: a constant temperature water tank; 13: a water pump;
14: a water inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One catalytic experimental platform of the present invention is described below in conjunction with fig. 1 and 2. The catalytic experiment platform comprises: shell 2, transparent basin 6 and test-tube rack 7, transparent basin 6 is arranged in to test-tube rack 7, and transparent basin 6 is arranged in to shell 2, and the three can carry out corresponding equipment and dismantlement.
Wherein the inner wall of the housing 2 is provided with a plurality of first light sources 3. The housing 2 is a cylindrical housing 2, which may be a stainless steel housing 2, having waterproof and corrosion-resistant functions. The first light sources 3 are evenly distributed along the side wall of the housing 2, and the positions of the first light sources 3 are located at the bottom of the side wall.
Further, the first light source 3 may employ an LED light source.
The transparent water tank 6 is arranged in the shell 2, the lower part of the transparent water tank 6 is provided with a water inlet 14, and the upper part is provided with a water outlet 5 and an overflow opening 9. The transparent water tank 6 is a cylindrical water tank, the diameter of the transparent water tank is smaller than that of the shell 2, the transparent water tank can be placed in the shell 2, the transparent water tank 6 can be a quartz water tank, light emitted by the first light source 3 can penetrate through the transparent water tank 6 to irradiate, and the requirement of a catalytic experiment on a light source is met. In this embodiment, a water bath heating method is adopted, a constant temperature water tank 12 is adopted to input a heating medium with a certain temperature into the transparent water tank 6, and the requirement of the catalytic experiment on the temperature is met by a water bath heating mode.
The test tube rack 7 is provided inside the transparent water tank 6, and a first mounting hole 71 is provided in the middle of the test tube rack 7. The test tube rack 7 may be a stainless steel test tube rack 7 that includes an upper and lower two disks and is connected between the two disks with four vertical supports. The test-tube rack 7 is equipped with a plurality of second mounting holes 72 that distribute around first mounting hole 71 circumference for hold the test tube, first light source 3 and the setting of second mounting hole 72 one-to-one guarantee that every test tube homoenergetic receives the light source catalysis. The upper and lower disks of the test tube rack 7 are respectively provided with a first mounting hole 71 and a second mounting hole 72 for placing test tubes, wherein the first mounting hole 71 in the middle of the test tube rack 7 is used for placing the ultrasonic generator 8 or the second light source. It can be understood that the test tube rack 7 can hold test tubes on one hand, and on the other hand, the ultrasonic generator 8 or other light sources used for the catalytic experiment can be placed in the middle of the test tube rack 7.
Further, the ultrasonic generator 8 may employ an ultrasonic vibrating bar.
In one embodiment of the present invention, a water outlet 5 and an overflow 9 are provided on the top of the transparent water tank 6. In this embodiment, the heating medium in the transparent water tank 6 is guided out by connecting the pipeline with the water outlet 5, and the overflow port 9 is used for guiding the redundant heating medium out to a sewer so as to avoid overflowing from the top of the transparent water tank 6.
Further, accessible pipeline is connected delivery port 5 in the import department of constant temperature basin 12, is connected the export and the water inlet 14 of constant temperature basin 12, can recycle heating medium, avoids the medium extravagant, after heating medium heats the settlement temperature in constant temperature basin 12, let in to carry out the water bath heating to the test tube in transparent basin 6 by water inlet 14, later heating medium is discharged by the delivery port 5 at top and flows back to in constant temperature basin 12, unnecessary heating medium is arranged to the sewer by the gap 9 at top.
Furthermore, the water outlet 5 in this embodiment has a rotatable elbow for conveniently adjusting the water level, one end of which is located above the transparent water tank 6 and faces downward, and the other end of the water outlet 5 extends to the outside of the transparent water tank 6 along the horizontal direction. The pipeline connecting the water inlet 14 and the water outlet 5 can adopt a flexible latex tube 1.
The invention provides a catalytic experiment platform.A first light source 3 is arranged on the inner wall of a shell 2; heating medium can be filled into the transparent water tank 6 for water bath heating; the test tube can be held by the test tube rack 7, and the ultrasonic generator 8 or the second light source can be placed in the first mounting hole 71 in the center thereof. The catalytic experiment platform can be correspondingly provided with the light source, the heat source and the ultrasonic source to carry out one, two or three principle cooperative catalytic experiments, and has the advantages of simple structure, convenient assembly and disassembly and convenient maintenance.
As shown in FIG. 3, the invention also provides an acousto-optic thermal catalysis experimental system. This reputation thermal catalysis experimental system includes: the catalytic experiment platform, the constant temperature water tank 12, the ultrasonic generator 8 and the second light source in the above embodiments.
The constant-temperature water tank 12 is filled with a heating medium, and water is preferably used. The constant temperature water tank 12 is a circulating water machine which can provide water bath with the temperature of-20 ℃ to 100 ℃ and can automatically drain water, and the drained water enters the transparent water tank 6 through a valve. The constant temperature water tank 12 is connected to the water inlet 14 through a pipe. In order to be able to recycle the heater medium, the water outlet 5 and the water inlet 14 of the transparent water tank 6 can be connected to the thermostatic water tank 12 via pipelines.
The ultrasonic generator 8 can adopt an ultrasonic vibrating bar, can emit 20-200 kHz ultrasonic waves, and has power adjusted between 0-600 watts.
The second light source may employ a xenon lamp or a mercury lamp or the like placed in a cold trap. The ultrasonic generator 8 or the second light source can be adapted to be arranged in the first mounting hole 71, and can be replaced according to the catalytic experiment requirement: namely, if the light source of the xenon lamp or the mercury lamp is needed to catalyze, the xenon lamp or the mercury lamp is put into the first mounting hole 71; if ultrasonic catalysis is required, an ultrasonic vibration rod is placed in the first mounting hole 71 instead of the light source.
According to one embodiment of the invention, the acousto-optic thermocatalysis experiment system further comprises a first light source controller 11, wherein the first light sources 3 are sequentially connected in parallel through the conducting wire 4 and are electrically connected with the first light source controller 11. In this embodiment, since the plurality of first light sources 3 are connected in parallel by the wires 4, and are controlled by the first light source controller 11 in a unified manner, the first light source controller 11 can control the on/off of the first light sources 3 and adjust the irradiation intensity of the first light sources 3. It will be appreciated that if a second light source is used, a corresponding controller may also be provided for controlling the turning on or off of the second light source, and for adjusting the wavelength and intensity of the second light source, etc.
According to one embodiment of the present invention, the acousto-optic thermocatalytic experimental system further comprises an ultrasonic controller 10, and the ultrasonic controller 10 is electrically connected with the ultrasonic generator 8. In the present embodiment, the operating state of the ultrasonic generator 8, such as the frequency and power of the ultrasonic generator 8, etc., can be adjusted by the ultrasonic controller 10.
According to one embodiment of the invention, the acousto-optic thermal catalysis experiment system further comprises a water pump 13, the constant temperature water tank 12 is connected to the water inlet 14 of the transparent water tank 6 through a pipeline, the water inlet of the water pump 13 is connected to the water outlet 5 of the transparent water tank 6, and the water outlet of the water pump 13 is connected to the water inlet of the constant temperature water tank 12. In the embodiment, the heating medium is recycled, the water pump 13 provides circulating power for the heating medium, and a small-sized mute water pump 13 capable of bearing the temperature of-20 ℃ to 100 ℃ can be adopted and is connected between the water outlet 5 of the transparent water tank 6 and the constant-temperature water tank 12 through the latex tube 1.
According to one embodiment of the present invention, the acousto-optic thermocatalytic experimental system further comprises a magnetic stirrer, and the magnetic stirrer is arranged at the bottom of the test tube rack 7. In this embodiment, adopt multistation magnetic stirrers to stir test tube product, the magnetic stirrers of every station is located the bottom of second mounting hole 72 and sets up with each station one-to-one of test-tube rack.
The acousto-optic thermal catalysis experiment system provided by the invention adopts the acoustic, optic and thermal to carry out the cooperative catalysis experiment, and can replace the ultrasonic generator 8 or the second light source according to the catalysis requirement, thereby changing the catalysis condition.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A catalytic assay platform, comprising:
the light source device comprises a shell, a light source and a light source, wherein a plurality of first light sources are arranged on the inner wall of the shell;
the transparent water tank is arranged in the shell, a water inlet is formed in the lower part of the transparent water tank, and a water outlet and an overflow port are formed in the upper part of the transparent water tank;
the test tube rack is arranged in the transparent water tank, and a first mounting hole is formed in the middle of the test tube rack.
2. The catalytic experiment platform of claim 1, wherein the test tube rack is provided with a plurality of second mounting holes distributed around the circumference of the first mounting hole for accommodating test tubes, and the first light sources are arranged in one-to-one correspondence with the second mounting holes.
3. An acousto-optic thermocatalytic experimental system, characterized by comprising:
the catalytic experimental platform according to claim 1 or 2;
the constant-temperature water tank is connected to the water inlet and the water outlet through pipelines;
an ultrasonic generator;
the second light source, supersonic generator or the second light source locate in the first mounting hole.
4. The acousto-optic thermocatalytic experimental system of claim 3, further comprising a first light source controller, wherein said first light sources are connected in parallel in sequence by a wire and electrically connected with said first light source controller.
5. The acousto-optic thermocatalytic experimental system of claim 3, further comprising an ultrasonic controller electrically connected to said ultrasonic generator.
6. The acousto-optic thermocatalytic experimental system according to claim 3, further comprising a water pump, wherein a water inlet of said water pump is connected to a water outlet of said transparent water tank through a pipeline, and a water outlet of said water pump is connected to a water inlet of said constant temperature water tank through a pipeline.
7. The acousto-optic thermocatalytic experimental system of claim 3, further comprising a magnetic stirrer, wherein said magnetic stirrer is disposed at the bottom of said test tube rack.
8. The acousto-optic thermocatalytic experimental system according to claim 3, wherein said first light source is an LED light source and said second light source is a xenon lamp or a mercury lamp.
9. The acousto-optic thermocatalytic experimental system of claim 3, wherein said housing is a stainless steel housing, said transparent water tank is a quartz water tank, and said test tube rack is a stainless steel test tube rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151635.8A CN113908790A (en) | 2021-09-29 | 2021-09-29 | Catalysis experiment platform and acousto-optic thermal catalysis experiment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151635.8A CN113908790A (en) | 2021-09-29 | 2021-09-29 | Catalysis experiment platform and acousto-optic thermal catalysis experiment system |
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| Publication Number | Publication Date |
|---|---|
| CN113908790A true CN113908790A (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111151635.8A Pending CN113908790A (en) | 2021-09-29 | 2021-09-29 | Catalysis experiment platform and acousto-optic thermal catalysis experiment system |
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| DE202012008894U1 (en) * | 2012-09-14 | 2012-11-23 | Mwt Mikrowellen Labor Technik Ag | Reaction tank system with rotor |
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Application publication date: 20220111 |