CN111298740A - Magnetic field catalytic reactor and application - Google Patents
Magnetic field catalytic reactor and application Download PDFInfo
- Publication number
- CN111298740A CN111298740A CN201911171019.1A CN201911171019A CN111298740A CN 111298740 A CN111298740 A CN 111298740A CN 201911171019 A CN201911171019 A CN 201911171019A CN 111298740 A CN111298740 A CN 111298740A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- catalytic reactor
- power supply
- kettle body
- current power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 40
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 34
- 239000011521 glass Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 20
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 150000001413 amino acids Chemical class 0.000 abstract description 2
- 238000006911 enzymatic reaction Methods 0.000 abstract description 2
- 108090000623 proteins and genes Proteins 0.000 abstract description 2
- 102000004169 proteins and genes Human genes 0.000 abstract description 2
- 238000006664 bond formation reaction Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 12
- 239000012429 reaction media Substances 0.000 description 9
- 239000004745 nonwoven fabric Substances 0.000 description 8
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 238000005842 biochemical reaction Methods 0.000 description 6
- 229940116333 ethyl lactate Drugs 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004310 lactic acid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 2
- 108010029541 Laccase Proteins 0.000 description 2
- 102000016943 Muramidase Human genes 0.000 description 2
- 108010014251 Muramidase Proteins 0.000 description 2
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000004325 lysozyme Substances 0.000 description 2
- 229960000274 lysozyme Drugs 0.000 description 2
- 235000010335 lysozyme Nutrition 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000002122 magnetic nanoparticle Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003541 multi-stage reaction Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005303 weighing 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
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
-
- 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
- B01J19/0006—Controlling or regulating processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
Abstract
The invention discloses a magnetic field catalytic reactor and application thereof, and belongs to the technical field of light equipment. The magnetic field catalytic reactor comprises a shell, a kettle body, a magnetic field generator and a PLC (programmable logic controller); the magnetic field catalytic reactor can enable the reaction environment to be in a uniform magnetic field, the relative deviation of the reaction process is lower than 3%, and the magnetic field catalytic reactor is beneficial to realizing a repeatable test. Can be used for enzyme reaction, ionic solution catalytic reaction, protein or amino acid inter-bond formation and other reactions, and has great application prospect in the fields of food, biology, chemical industry, medicine and the like.
Description
Technical Field
The invention relates to a magnetic field catalytic reactor and application thereof, belonging to the technical field of light equipment.
Background
Biochemical reactions require stimulation by external physical fields such as light, heat, sound, pressure, electricity, magnetism, etc. to proceed. Wherein the electromagnetic (light), electric, magnetic, acoustic fields belong to the vector field, while the pressure and temperature belong to the scalar physical field. The combination and collocation of different physical fields and the intensity and the frequency of the fields have specific effects on different biochemical reactions. At present, glass reactors exist which use a combination of stirring and temperature control to assist biochemical reactions. However, magnetic field, as a physical field, has beneficial effects on biochemical reactions and is reported in numerous documents, which is based on the non-thermal effects of the magnetic field of the reaction medium. Researchers speculate that this is due to the presence of minute magnetically induced molecular or ionic currents within the reaction medium or material. In order to make the magnetic field in the sample region controllable and thus make the reaction experiment repeatable and descriptive, it is highly desirable to develop a commercial reactor with magnetic field function.
Disclosure of Invention
The invention provides a magnetic field catalytic reactor, which comprises a shell, a kettle body, a magnetic field generator and a PLC (programmable logic controller); the magnetic field generator comprises Helmholtz coils, a direct current power supply and/or an alternating current power supply, and the Helmholtz coils are arranged at the periphery or two sides of the kettle body, so that the inner space of the kettle body is completely positioned in the range of a magnetic field generated by the Helmholtz coils; the Helmholtz coil is connected with a direct current power supply and an alternating current power supply; can generate a static magnetic field with the magnetic field intensity of 0-50mT and the frequency of 0Hz by matching with a direct current power supply; the Helmholtz coil is matched with an alternating current power supply to generate an alternating magnetic field with the magnetic field intensity of 0-50mT and the magnetic field frequency of 1-1000 Hz; the PLC controller controls the operation of the direct current power supply and the alternating current power supply.
In one embodiment, the Helmholtz coil, in cooperation with a DC or AC power source, may generate a static or alternating magnetic field having a magnetic field strength of 0-20 mT.
In one embodiment, the Helmholtz coil, in cooperation with a DC or AC power source, may generate a static or alternating magnetic field having a magnetic field strength of 0-5 mT.
In one embodiment, the helmholtz coils are symmetrically arranged on two sides of the kettle body along the central axis of the kettle body, and the central axis of the helmholtz coils is perpendicular to the central axis of the kettle body.
In one embodiment, the magnetic field catalytic reactor is provided with voltage regulators which are respectively connected with a direct current power supply and an alternating current power supply and used for maintaining the voltage stability.
In one embodiment, the top of the kettle body is provided with a kettle cover, and the bottom of the kettle body is provided with a discharge valve.
In one embodiment, the kettle body and the kettle cover are connected and fixed through a detachable clamping hoop.
In one embodiment, a stirring device is arranged in the kettle body and is driven by a motor to rotate; the motor is connected with the PLC.
In one embodiment, the stirring device comprises a stirring shaft and a stirring paddle; the stirring paddle is connected with the motor through the stirring shaft, and the motor drives the stirring shaft to rotate, so that the stirring paddle is driven to stir the inner part of the kettle body.
In one embodiment, the stirring speed of the stirring device can be up to 0-400 rpm.
In one embodiment, the shell is made of iron plates, so that external magnetic field shielding is realized, and the control limit of the national standard GB 8702-2014 electromagnetic environment is met.
In one embodiment, the PLC controller is connected to the dc power supply, the ac power supply, and the motor, respectively, and controls the dc power supply, the ac power supply, and the motor to operate.
In one embodiment, the kettle cover is also provided with a connecting port which can be connected with a constant pressure funnel and a condensing pipe.
In one embodiment, the kettle body, the constant-pressure funnel and the condenser pipe are made of glass, plastic or crystal; the glass is preferably G17 high borosilicate glass.
In one embodiment, the housing is provided with an openable sampling window or a box door, which is convenient for sampling or observing the reaction process.
In one embodiment, the housing is provided with a touch screen input device, and is connected with the PLC controller for setting parameters required by the PLC controller.
The invention also claims the application of the magnetic field catalytic reactor in the fields of chemical industry, food, pharmacy and environment.
In one embodiment, the applications include, but are not limited to: magnetic nanoparticle assisted reaction, microstructure and nanostructure synthesis, free radical reaction, catalytic active site change, biochemical reaction regulation, magnetic field assisted adsorption, protein and amino acid inter-bonding, enzyme reaction, ionic solution catalysis and other reactions.
The invention has the beneficial effects that:
1. the invention makes the sample cavity completely in the range of uniform magnetic field by symmetrically arranging the coils on the outer side of the reaction kettle body; by arranging a direct current power supply or an alternating current power supply connected with the Helmholtz coil, a static magnetic field with the magnetic field intensity of 0-5mT and the frequency of 0Hz or an alternating magnetic field with the frequency of 1-1000Hz can be produced;
2. the invention controls the reactor through the PLC controller, and can realize the automatic control of the magnetic field intensity, the magnetic field frequency and the stirring speed.
3. The magnetic field catalytic reactor can enable the reaction environment to be in a uniform magnetic field, fully utilizes the space magnetic field area, improves the test efficiency, has the relative deviation of the biochemical reaction yield lower than 3 percent and is beneficial to the repeatability of the test.
Drawings
FIG. 1 is a schematic structural diagram (A) of a magnetic field catalytic reactor; a cross-sectional structural view along the B-B part (B);
FIG. 2 is a schematic perspective view of a magnetic field catalytic reactor;
wherein, 1, a voltage stabilizer; 2, an alternating current power supply; 3, a direct current power supply; 4, Helmholtz coils; 5, a PLC controller; 6, a motor; 7, a condenser pipe; 8, a constant pressure funnel; 9, a kettle body; 10, a kettle cover; 11, a stirring paddle; 12, a discharge valve; 13, a shell.
FIG. 3 is an electrical diagram of a PLC controller of a magnetic field catalytic reactor in one embodiment, taking Macco PLC model MX1H-1208MR02 as an example.
Fig. 4 is a schematic diagram of a relay connection for a magnetic field catalytic reactor.
FIG. 5 is a flow control diagram of a magnetic field catalytic reactor.
Fig. 6 is a perspective view of a magnetic field catalytic reactor.
Fig. 7 is a perspective view of the magnetic field catalytic reactor in a state where the door of the chamber is open.
FIG. 8 is a partial view of the junction of the body and the cover of the magnetic field catalytic reactor.
FIG. 9 is a schematic view of a magnetic field catalytic reactor vessel lid and attached glassware.
Detailed Description
Example 1 static isothermal reactor
As shown in fig. 1 to 5, the magnetic field catalytic reactor comprises a shell 13, a kettle body 9, a magnetic field generator and a PLC controller 5; the magnetic field generator comprises Helmholtz coils 4, a direct current power supply 3 and/or an alternating current power supply 2, the Helmholtz coils 4 are symmetrically arranged on two sides of the kettle body 9 along the central axis of the kettle body 9, and the central axis of the Helmholtz coils 4 is perpendicular to the central axis of the kettle body, so that the inner space of the kettle body is completely in the range of a uniform magnetic field generated by the Helmholtz coils 4; the Helmholtz coil 4 is respectively connected with the direct current power supply 3 and the alternating current power supply 2; can generate a static magnetic field with the magnetic field intensity of 0-5mT and the frequency of 0Hz by matching with the direct current power supply 3; the Helmholtz coil 4 is matched with the alternating current power supply 2 to generate an alternating magnetic field with the magnetic field intensity of 0-5mT and the magnetic field frequency of 1-1000 Hz; the PLC 5 is connected with the DC power supply 3, the AC power supply 2 and the motor 6, controls the DC power supply 3, the AC power supply 2 and the motor 6 to work, and controls the on-off of the DC power supply 3, the AC power supply 2 and the motor 6 through a relay.
The volume of the kettle body 9 is 0.1-10L, and a reaction medium is loaded in the kettle body 9. The kettle body 9 is provided with a jacket which can be a glass jacket; the jacket is provided with a water inlet and a water outlet, and liquid cold and heat source media can be introduced for maintaining the reaction temperature in the kettle body 9; the top of the kettle body 9 is provided with a kettle cover 10, and the kettle cover 10 is connected with the kettle body 9 through a sealing element; the sealing element can be a clamp; the bottom of the kettle body is provided with a discharge valve 12, and the inside of the kettle body 9 is provided with a stirring paddle 11; the stirring paddle 11 is connected with the motor 6 through the stirring shaft, the motor 6 drives the stirring shaft to rotate, and then the stirring paddle 11 is driven to stir the inside of the kettle body 9, and the stirring speed can reach 0-400 rpm.
The reactor is also provided with a voltage stabilizer 1, and the voltage stabilizer 1 is respectively connected with an alternating current power supply 2 and a direct current power supply 3 and is used for maintaining the stability of voltage. The shell 13 is made of iron plates, so that the shielding of an external magnetic field is realized, and the control limit value of the national standard GB 8702-2014 electromagnetic environment is met.
Optionally, a connecting port is further arranged on the kettle cover 10, and the aperture of the connecting port meets the general aperture of a chemical instrument, including but not limited to 14mm, 19mm, 24mm, and 29 mm; the connecting port can be connected with a constant pressure funnel 8 and a condensing pipe 7. The kettle body 9, the constant-pressure funnel 8 and the condenser pipe 7 are made of glass, plastic or crystal, and the glass is preferably G17 high borosilicate glass.
Optionally, an openable sampling window or a box door is provided on the housing 13 to facilitate sampling.
Optionally, a touch screen input device is disposed on the housing 13, and is connected to the PLC controller 5, so as to set parameters required by the PLC controller 5.
Optionally, a bracket is arranged on the housing 13, and a clamp is arranged on the bracket and used for clamping or fixing the stirring device and/or the constant pressure funnel 8, the condensation pipe 7 and other glass instruments.
Optionally, the helmholtz coils 4 may be symmetrically disposed on two sides of the kettle body, or may be disposed around the kettle body, so that the interior of the kettle body is completely within a uniform magnetic field range generated by the magnetic coils.
The working principle of the magnetic field catalytic reactor is as follows: starting the magnetic field catalytic reactor, and setting parameter conditions (such as stirring speed, magnetic field intensity, magnetic field frequency, running time and the like) required by the experiment; when the stirring speed reaches the speed required by operation, keeping the set value; when the magnetic field is set to a static magnetic field, the direct-current power supply 3 is operated until the magnetic field reaches a set intensity and the intensity is kept in operation; when the magnetic field is set to an alternating magnetic field, the alternating-current power supply 2 is operated until the magnetic field intensity and frequency reach set values and the horizontal operation is maintained. When the reaction needs to control the temperature, liquid media with corresponding temperature are introduced into the jacket of the kettle body 9 to maintain the environment inside the kettle body 9; when the reaction process needs to be sampled or discharged, the sampling or discharging is carried out through the discharging valve 12. The PLC 5 in the reaction process continuously operates until the reaction is finished. The magnetic field catalytic reactor is suitable for single-stage or multi-stage reaction process, and can record the reaction time.
Example 2 magnetic field catalyzed ethanol-lactic acid esterification Synthesis
The magnetic field catalytic reactor (the volume of the kettle body is 5L) is utilized to carry out the ethanol-lactic acid esterification reaction, and the operation is carried out according to the following steps:
(1) mixing 1000mL of 10mol/L lactic acid aqueous solution, 1600mL of 10mol/L ethanol aqueous solution and 6g of ferroferric oxide catalyst as reaction media, and preheating for 20min in a constant-temperature kettle body at 35 ℃;
(2) starting a motor, stirring a reaction medium at 100rpm, and setting the temperature of a kettle body to be 58 ℃;
(3) starting an alternating magnetic field, wherein the magnetic field intensity is 4.5mT, and the frequency is 300 Hz;
(4) and stopping the reaction after 8 hours, discharging the feed liquid, and analyzing the concentration of the ethyl lactate in the residual reaction medium after the temperature is 25 ℃.
The experiment of 3 batches was repeated, 1000mL of aqueous lactic acid solution and 1600mL of 10mol/L aqueous ethanol solution were adjusted to: 500ml, 800 ml; 250ml,400ml and 800ml, 1280 ml; and (4) measuring the content of the ethyl lactate after the reaction. The ethyl lactate quantitative analysis method is carried out by adopting a gas chromatography, and the specific steps refer to the gas chromatography analysis of Zhang Lanping, Wang Yintang and ethyl lactate, which is reported by university of North Hebei Master: nature science edition, 1991(01), 75-76 ".
Through detection, after the catalytic treatment of an alternating magnetic field with the magnetic field intensity of 4.5mT and the frequency of 300Hz, the concentration of the ethyl lactate in a reaction medium is 0.24mol/L, and the relative deviation of 4 batches of experiments is 1.2 percent; in contrast, when the reaction conditions were otherwise the same but no magnetic field was applied, the ethyl lactate concentration in the finally obtained reaction medium was 0.03mol/L, with a relative deviation of 1.3% in the 4 experiments. Therefore, the catalytic reactor has accurate temperature and magnetic field control and good magnetic field uniformity.
Example 3 preparation of non-woven Fabric containing immobilized Lysozyme by magnetic field catalysis of laccase
By using the magnetic field catalytic reactor, the volume of the kettle body is 0.5L, and the experimental operation is as follows:
(1) weighing 1.2g (size 10mm 1mm) of a small piece of non-woven fabric in a kettle body, and respectively adding 50mL of acetic acid buffer (pH value 4.5) and 0.2g of laccase;
(2) starting a motor, stirring a reaction medium at 120rpm, and setting the temperature of a kettle body to be 50 ℃;
(3) starting an alternating magnetic field, wherein the magnetic field intensity is 2.5mT, and the frequency is 50 Hz;
(4) stirring for 30min under the magnetic field environment, and then adding 0.3g of lysozyme into the reaction system;
(5) and stopping reaction for 10 hours, discharging the feed liquid, taking out the non-woven fabric after the temperature is 25 ℃ at room temperature, airing, and carrying out antibacterial performance test.
The antibacterial performance test method comprises the following steps: a gram-positive bacterium representative Staphylococcus aureus (ATCC6538, Staphylococcus aureus) is taken as an experimental strain, and an oscillating flask method is adopted to test the antibacterial performance of a sample according to GB15979-2002 hygienic standards for disposable sanitary products.
The antibacterial performance of the sample is evaluated by the bacteriostasis rate, and a calculation formula is adopted
The following were used:
in the formula, XSThe bacteriostatic rate (%) is; a is the average colony number before the measured non-woven fabric sample is processed; and B is the average colony number of the non-woven fabric sample to be detected after treatment. If the average colony number after treatment is larger than that before shaking, the inhibition rate is calculated as 0. The washing fastness of the antibacterial effect of the finished fabric is tested according to GB/T8629-2001 family washing and drying program for textile test.
Through detection, the antibacterial rate of the non-woven fabric can reach 70.42% after the non-woven fabric is subjected to the catalytic treatment by the alternating magnetic field with the magnetic field intensity of 2.5mT and the frequency of 50Hz, compared with the antibacterial rate of the non-woven fabric which is only 57.37% if other reaction conditions are the same and the magnetic field is not applied.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The magnetic field catalytic reactor is characterized by comprising a shell, a kettle body, a magnetic field generator and a PLC (programmable logic controller), wherein the kettle body, the magnetic field generator and the PLC are arranged in the shell; the magnetic field generator comprises a Helmholtz coil, a direct current power supply and/or an alternating current power supply, and the Helmholtz coil is arranged outside the kettle body, so that the internal space of the kettle body is completely in the range of a magnetic field generated by the Helmholtz coil; the Helmholtz coil is connected with a direct current power supply and an alternating current power supply; can generate a static magnetic field with the magnetic field intensity of 0-50mT by matching with a direct current power supply; the Helmholtz coil is matched with an alternating current power supply to generate an alternating magnetic field with the magnetic field intensity of 0-50mT and the magnetic field frequency of 1-1000 Hz; the PLC controller controls the operation of the direct current power supply and the alternating current power supply.
2. The magnetic field catalytic reactor of claim 1, wherein the Helmholtz coils are symmetrically disposed on both sides of the vessel along a central axis of the vessel.
3. The magnetic field catalytic reactor according to claim 1 or 2, further comprising a voltage stabilizer, wherein the voltage stabilizer is connected to the dc power supply and the ac power supply respectively.
4. The magnetic field catalytic reactor according to any one of claims 1 to 3, wherein a kettle cover is arranged at the top of the kettle body, and a discharge valve is arranged at the bottom of the kettle body; a stirring device is arranged in the kettle body; the stirring device is driven by a motor to rotate; the motor is connected with the PLC.
5. The magnetic field catalytic reactor of claim 4, wherein the stirring device comprises a stirring shaft, a stirring paddle; the stirring paddle is connected with the motor through the stirring shaft.
6. The magnetic field catalytic reactor of claim 4, characterized in that the kettle cover is provided with a connecting port, and the connecting port is connected with the constant pressure funnel and the condensing pipe.
7. The magnetic field catalytic reactor of claim 6, characterized in that the kettle, the constant pressure funnel and the condenser tube are made of glass, plastic or crystal.
8. The magnetic field catalytic reactor according to any one of claims 1 to 7, wherein the housing is provided with an openable sampling window or a door.
9. The magnetic field catalytic reactor according to any one of claims 1 to 8, wherein a touch screen input device is arranged on the housing and connected with the PLC controller for setting parameters required by the PLC controller.
10. The use of the magnetic field catalytic reactor of any one of claims 1 to 9 in the fields of chemical industry, food, pharmaceutical industry, and the environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911171019.1A CN111298740A (en) | 2019-11-26 | 2019-11-26 | Magnetic field catalytic reactor and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911171019.1A CN111298740A (en) | 2019-11-26 | 2019-11-26 | Magnetic field catalytic reactor and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111298740A true CN111298740A (en) | 2020-06-19 |
Family
ID=71154293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911171019.1A Pending CN111298740A (en) | 2019-11-26 | 2019-11-26 | Magnetic field catalytic reactor and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111298740A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040129555A1 (en) * | 1999-04-09 | 2004-07-08 | Marchitto Kevin S. | Energy enhanced reaction catalysis and uses thereof |
| CN2748147Y (en) * | 2004-12-17 | 2005-12-28 | 邹世春 | Ultrasonic microwave digestion extraction arrangement |
| CN201098614Y (en) * | 2007-07-31 | 2008-08-13 | 北京理工大学 | Magnetic control still type reactor |
| JP2014131786A (en) * | 2013-01-07 | 2014-07-17 | Ichigo Holdings Co Ltd | Scale removal/adhesion prevention device |
| CN204544169U (en) * | 2015-03-20 | 2015-08-12 | 北京祥鹄科技发展有限公司 | Multipurpose microwave chemosynthesis instrument |
| CN205042464U (en) * | 2015-05-13 | 2016-02-24 | 中国科学院城市环境研究所 | High strength electromagnetic environment analogue means suitable for biological effect research |
| CN107096478A (en) * | 2016-02-19 | 2017-08-29 | 天津润沃供水安装工程有限公司 | Magnetic controllable reaction kettle |
| CN107649087A (en) * | 2017-10-31 | 2018-02-02 | 瑞阳制药有限公司 | Small-sized reaction unit |
| CN109718733A (en) * | 2019-02-25 | 2019-05-07 | 中国计量大学 | A kind of reaction unit and its working method with controllable outfield coupling function |
| CN211837843U (en) * | 2019-11-26 | 2020-11-03 | 英都斯特(无锡)感应科技有限公司 | Magnetic field catalytic reactor |
-
2019
- 2019-11-26 CN CN201911171019.1A patent/CN111298740A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040129555A1 (en) * | 1999-04-09 | 2004-07-08 | Marchitto Kevin S. | Energy enhanced reaction catalysis and uses thereof |
| CN2748147Y (en) * | 2004-12-17 | 2005-12-28 | 邹世春 | Ultrasonic microwave digestion extraction arrangement |
| CN201098614Y (en) * | 2007-07-31 | 2008-08-13 | 北京理工大学 | Magnetic control still type reactor |
| JP2014131786A (en) * | 2013-01-07 | 2014-07-17 | Ichigo Holdings Co Ltd | Scale removal/adhesion prevention device |
| CN204544169U (en) * | 2015-03-20 | 2015-08-12 | 北京祥鹄科技发展有限公司 | Multipurpose microwave chemosynthesis instrument |
| CN205042464U (en) * | 2015-05-13 | 2016-02-24 | 中国科学院城市环境研究所 | High strength electromagnetic environment analogue means suitable for biological effect research |
| CN107096478A (en) * | 2016-02-19 | 2017-08-29 | 天津润沃供水安装工程有限公司 | Magnetic controllable reaction kettle |
| CN107649087A (en) * | 2017-10-31 | 2018-02-02 | 瑞阳制药有限公司 | Small-sized reaction unit |
| CN109718733A (en) * | 2019-02-25 | 2019-05-07 | 中国计量大学 | A kind of reaction unit and its working method with controllable outfield coupling function |
| CN211837843U (en) * | 2019-11-26 | 2020-11-03 | 英都斯特(无锡)感应科技有限公司 | Magnetic field catalytic reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6723563B2 (en) | Virus inactivation | |
| US10059914B2 (en) | Disposable bioreactors and methods for construction and use thereof | |
| EP0455513A2 (en) | Improved microwave heating system | |
| CN105268388B (en) | A kind of circulating magnetoelectric induction reaction system and its application | |
| US20180250666A1 (en) | Improvements in and Relating to Biomanufacturing Apparatus | |
| KR20130139051A (en) | Multifunctional incubator | |
| Rakoczy et al. | The study of influence of a rotating magnetic field on mixing efficiency | |
| CN211837843U (en) | Magnetic field catalytic reactor | |
| CN111298740A (en) | Magnetic field catalytic reactor and application | |
| CN206359526U (en) | A kind of ultrasonic installation for fermenting for food production | |
| JP2016500433A (en) | Temperature control surface and support structure | |
| CN106269000A (en) | One can sterilizing thermostat water bath and application | |
| CN211785553U (en) | Novel blood tumor marker analysis device | |
| CN211847978U (en) | Magnetic field catalysis oscillation incubator | |
| Rekena et al. | The role of magnetic field in the biopharmaceutical production: Current perspectives | |
| CN211847972U (en) | Magnetic field catalysis illumination oscillation incubator | |
| CN211847971U (en) | Magnetic field catalysis carbon dioxide oscillation incubator | |
| CN211847979U (en) | Magnetic field catalysis carbon dioxide incubator | |
| CN213570485U (en) | Sensitive stable laboratory detects uses nucleic acid extraction appearance | |
| CN214142339U (en) | A culture apparatus for medical treatment inspection microorganism | |
| CN202570043U (en) | Constant temperature water bath oscillator | |
| CN215843081U (en) | Oxygen-isolation sterilizing water bath kettle | |
| CN209934755U (en) | Biological safety cabinet | |
| CN217297876U (en) | Culture equipment for producing biological antibody | |
| CN204724194U (en) | One can sterilizing thermostat water bath |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |