CN110433750A - A kind of diuron photochemical reaction device - Google Patents
A kind of diuron photochemical reaction device Download PDFInfo
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- CN110433750A CN110433750A CN201910783693.9A CN201910783693A CN110433750A CN 110433750 A CN110433750 A CN 110433750A CN 201910783693 A CN201910783693 A CN 201910783693A CN 110433750 A CN110433750 A CN 110433750A
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- photochemical
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- diuron
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
- A62D3/176—Ultraviolet radiations, i.e. radiation having a wavelength of about 3nm to 400nm
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- 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
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- 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
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- 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
- B01J19/18—Stationary reactors having moving elements inside
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/04—Pesticides, e.g. insecticides, herbicides, fungicides or nematocides
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
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- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Optics & Photonics (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of diuron photochemical reaction devices, including photochemical case, the bottom of the photochemical case is fixedly installed with several equally distributed support columns, chamber door is provided on the front end face of the photochemical case, the left end face upper section of the photochemical case is fixedly installed with blow vent, the left end face lower section of the photochemical case is fixedly installed with exhaust pipe, recovering mechanism is provided on the right side of the photochemical case, it is fixedly connected between the photochemical case and recovering mechanism by the first communicating pipe, the present invention is a kind of diuron photochemical reaction device, by the way that the first high-pressure sodium lamp is arranged, fog-spray nozzle and helical pipe etc., raising diuron photochemical reaction effect is reached, the thoroughly harmful by-products after processing reaction, the substance being discharged after processing is nontoxic and pollution-free, solves current diuron photochemical reaction device, reaction effect is poor, after reaction Not thorough enough the problem of by-product processing.
Description
Technical field
The present invention relates to diuron photochemical degradation technical field, specially a kind of diuron photochemical reaction device.
Background technique
Diuron is as a kind of widely applied phenylurea herbicide, to polluting especially to the dirt of water body for environment
Diuron, is increasingly classified as by the great attention of people, Canadian environmental protection administration and U.S.EPA and needs to monitor by dye
One of herbicide, European Union has also been included in priority pollutants list, and diuron may be implemented hundred using photocatalytic method
/ hundred dechlorination and 90 percent mineralising, but toxic by-product can be generated in photochemical reaction.
Current diuron photochemical reaction device, reaction effect is poor, not thorough enough for the by-product processing after reaction.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of diuron photochemical reaction device
Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of diuron photochemical reaction device, including photochemical case, the bottom of the photochemical case are fixedly installed with several
The support column of even distribution is provided with chamber door, the fixed peace of the left end face upper section of the photochemical case on the front end face of the photochemical case
Equipped with blow vent, the left end face lower section of the photochemical case is fixedly installed with exhaust pipe, is provided with back on the right side of the photochemical case
Mechanism is received, is fixedly connected between the photochemical case and recovering mechanism by the first communicating pipe, is provided on first communicating pipe
Air pump is provided with reaction mechanism on the right side of the recovering mechanism.
Preferably, the inner wall bottom of the photochemical case is fixedly installed with pedestal, and peace is provided on the upper surface of the pedestal
Sabot offers several placing grooves on the upper surface of the mounting disc, and the placing groove is internally provided with transparent beaker.
Preferably, magnetic plate, fixed peace on the lower end surface of the mounting disc are fixedly installed on the upper surface of the pedestal
Equipped with several equally distributed locating rods, is corresponded on the upper surface of the pedestal at locating rod position and offer locating slot.
Preferably, first motor is fixedly installed on the upper surface of the photochemical case, the output end of the first motor is solid
Dingan County is equipped with rotating disc, and the inside of photochemical case is arranged in the rotating disc, if being fixedly installed on the lower end surface of the rotating disc
Equally distributed first high-pressure sodium lamp is done, is fixedly installed with mounting rack on the inner sidewall of the photochemical case, the mounting rack
Position is corresponding with transparent beaker, several equally distributed second high-pressure sodium lamps are fixedly installed on the mounting rack.
Preferably, the recovering mechanism includes recycling bins, and the right end face lower section of the recycling bins is fixedly installed with first
Outlet is fixedly installed with water storage box on the upper surface of the recycling bins, conveyance conduit is provided on the water storage box, described defeated
The other end of pipeline is sent to be fixedly installed with shower tray, the shower tray is located at the inside of recycling bins, the lower end surface of the shower tray
On be fixedly installed with several equally distributed fog-spray nozzles, be provided with water pump on the conveyance conduit.
Preferably, the reaction mechanism includes reaction chamber, between the reaction chamber and recycling bins by second communicating pipe phase
Connection, one end of second communicating pipe are fixedly mounted in the right end face of recycling bins, the other end of second communicating pipe
It is fixedly plugged in the inside of reaction chamber, inlet tube and the second outlet, institute are fixedly installed in the right end face of the reaction chamber
The lower section that the second outlet is located at inlet tube is stated, is fixedly installed with the second motor on the upper surface of the reaction chamber, described second
The output end of motor is fixedly installed with rotating bar, and the rotating bar is rotatably installed at the top of the inner wall of reaction chamber, the rotating bar
On be fixedly installed with several symmetrical paddles.
Preferably, heat-conducting plate is fixedly installed in the end face outside of the reaction chamber, the heat-conducting plate is internally provided with
Helical pipe, the both ends of the helical pipe are provided with circulation nozzle, and the circulation nozzle is arranged through heat-conducting plate.
Preferably, it is provided on the exhaust pipe, the first communicating pipe, first discharge port, inlet tube and the second outlet
Valve.
Compared with prior art, the beneficial effects of the present invention are: a kind of diuron photochemical reaction device, by blow vent,
It is passed through nitrogen inside to photochemical case, by air after exhaust pipe discharge, exhaust pipe is turned off, by blow vent to inside photochemical case
It is passed through phosgene, internal diuron under the radiation, and carries out photochemical degradation after phosgene reaction, HCL and residual phosgene of generation etc. are logical
Enter recovering mechanism after the first communicating pipe to be recycled, then after react completely by reaction mechanism, disposes harmful substance, enemy is careless
Grand solution is placed on inside transparent beaker, is placed on inside the placing groove in mounting disc, and mounting disc is replaceable, for changing transparent
The placement quantity of beaker, mounting disc are fixed on the base by magnetic plate, are positioned by locating rod and locating slot, high by first
Pressure mercury lamp and the second high-pressure sodium lamp carry out light irradiation catalysis to the diuron solution inside transparent beaker, and the first high-pressure sodium lamp passes through
First motor drives turn disc, so that light irradiation is more uniform, by water storage box and water pump, water is sprayed by fog-spray nozzle
It spills, for water with the HCL gas after photochemical reaction and after remaining phosgene contact, reaction hydrochloric acid solution, hydrochloric acid solution passes through first row
Outlet discharge is recycled, and hydrochloric acid is volatile to be entered inside reaction mechanism, and the hydrochloric acid after volatilization is entered anti-by the second communicating pipe
The inside of case is answered, reaction chamber inside is passed through lye by inlet tube, and hydrochloric acid and lye occur neutralization reaction, produces salt and water, can
With discharge, nonhazardous is pollution-free, is arranged by the second motor, rotating bar and paddle, is stirred to solution, so that neutralizing anti-
By heat-conducting plate and helical pipe, it more sufficiently should be passed through recirculated cooling water, the thermal energy generated to neutralization reaction recycles.
The present invention is a kind of diuron photochemical reaction device, by the first high-pressure sodium lamp of setting, fog-spray nozzle and helical pipe etc., is reached
Diuron photochemical reaction effect being improved, thoroughly the harmful by-products after processing reaction, the substance being discharged after processing is nontoxic and pollution-free,
Solves current diuron photochemical reaction device, reaction effect is poor, not thorough enough for the by-product processing after reaction
Problem.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of diuron photochemical reaction device；
Fig. 2 is a kind of schematic diagram of internal structure of photochemical case in diuron photochemical reaction device；
Fig. 3 is a kind of structural schematic diagram of base position in diuron photochemical reaction device；
Fig. 4 is the overlooking structure diagram in a kind of diuron photochemical reaction device at mounting disc；
Fig. 5 is a kind of schematic diagram of internal structure of recycling bins in diuron photochemical reaction device；
Fig. 6 is a kind of schematic diagram of internal structure for the treatment of box in diuron photochemical reaction device.
In figure: the photochemical case of 1-, 2- support column, 3- chamber door, 4- blow vent, the first communicating pipe of 5-, 6- air pump, 7- recycling machine
Structure, 8- reaction mechanism, 9- pedestal, 10- mounting disc, the transparent beaker of 11-, 12- first motor, 13- rotating disc, the first high pressure of 14-
Mercury lamp, 15- mounting rack, the second high-pressure sodium lamp of 16-, 17- exhaust pipe, 18- magnetic plate, 19- locating rod, 20- locating slot, 21- are put
Set slot, 22- recycling bins, 23- water storage box, 24- conveyance conduit, 25- water pump, 26- shower tray, 27- fog-spray nozzle, the discharge of 28- first
Mouthful, the second communicating pipe of 29-, 30- reaction chamber, the second motor of 31-, 32- rotating bar, 33- paddle, 34- inlet tube, 35- second
Outlet, 36- heat-conducting plate, 37- helical pipe, 38- recycle nozzle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1~6 are please referred to, the present invention provides a kind of technical solution: a kind of diuron photochemical reaction device, including photochemical case
1, the bottom of the photochemical case 1 is fixedly installed with several equally distributed support columns 2, sets on the front end face of the photochemical case 1
It is equipped with chamber door 3, the left end face upper section of the photochemical case 1 is fixedly installed with blow vent 4, under the left end face of the photochemical case 1
Section is fixedly installed with exhaust pipe 17, and the right side of the photochemical case 1 is provided with recovering mechanism 7, the photochemical case 1 and recovering mechanism 7
Between by being fixedly connected the first communicating pipe 5, air pump 6, the right side of the recovering mechanism 7 are provided on first communicating pipe 5
It is provided with reaction mechanism 8.
By blow vent 4, it is passed through nitrogen inside Xiang Guanghua case 1, by air after the discharge of exhaust pipe 17, turns off exhaust pipe
17, by blow vent 4 to being passed through phosgene inside photochemical case 1, internal diuron under the radiation, and carries out photochemical drop after phosgene reaction
Solution, the HCL of generation and residual phosgene etc. are recycled by the first communicating pipe 5 into recovering mechanism 7, then to pass through reaction mechanism complete
After full response, harmful substance is disposed.
The inner wall bottom of the photochemical case 1 is fixedly installed with pedestal 9, is provided with mounting disc on the upper surface of the pedestal 9
10, several placing grooves 21 are offered on the upper surface of the mounting disc 10, and the placing groove 21 is internally provided with transparent burning
Cup 11.
It is fixedly installed with magnetic plate 18 on the upper surface of the pedestal 9, is fixedly mounted on the lower end surface of the mounting disc 10
There are several equally distributed locating rods 19, is corresponded on the upper surface of the pedestal 9 at 19 position of locating rod and offer locating slot
20。
Diuron solution is placed on inside transparent beaker 11, is placed on inside the placing groove 21 in mounting disc 10, mounting disc
10 is replaceable, and for changing the placement quantity of transparent beaker 11, mounting disc 10 is fixed on pedestal 9 by magnetic plate 18, passes through
Locating rod 19 and locating slot 20 position.
First motor 12 is fixedly installed on the upper surface of the photochemical case 1, the output end of the first motor 12 is fixed
Rotating disc 13 is installed, the rotating disc 13 is arranged in the inside of photochemical case 1, is fixedly mounted on the lower end surface of the rotating disc 13
There are several equally distributed first high-pressure sodium lamps 14, is fixedly installed with mounting rack 15 on the inner sidewall of the photochemical case 1, it is described
The position of mounting rack 15 is corresponding with transparent beaker 11, be fixedly installed on the mounting rack 15 several equally distributed second
High-pressure sodium lamp 16.
Light is carried out to the diuron solution inside transparent beaker 11 by the first high-pressure sodium lamp 14 and the second high-pressure sodium lamp 16
Irradiation catalysis, the first high-pressure sodium lamp 14 drive rotating disc 13 to rotate by first motor 12, so that light irradiation is more uniform.
The recovering mechanism 7 includes recycling bins 22, and the right end face lower section of the recycling bins 22 is fixedly installed with first row
28 are exported, water storage box 23 is fixedly installed on the upper surface of the recycling bins 22, is provided with conveyance conduit on the water storage box 23
24, the other end of the conveyance conduit 24 is fixedly installed with shower tray 26, and the shower tray 26 is located at the inside of recycling bins 22, institute
It states and is fixedly installed with several equally distributed fog-spray nozzles 27 on the lower end surface of shower tray 26, be provided on the conveyance conduit 24
Water pump 25.
By water storage box 23 and water pump 25, water is sprayed by fog-spray nozzle 27, water and HCL gas after photochemical reaction and residual
Deposit phosgene contact after, react hydrochloric acid solution, hydrochloric acid solution by first discharge port 28 discharge recycled, hydrochloric acid it is volatile into
Enter inside reaction mechanism 8.
The reaction mechanism 8 includes reaction chamber 30, passes through for the second communicating pipe 29 between the reaction chamber 30 and recycling bins 22
It is connected, one end of second communicating pipe 29 is fixedly mounted in the right end face of recycling bins 22, second communicating pipe 29
The other end be fixedly plugged in the inside of reaction chamber 30, be fixedly installed with 34 He of inlet tube in the right end face of the reaction chamber 30
Second outlet 35, second outlet 35 are located at the lower section of inlet tube 34, fixed peace on the upper surface of the reaction chamber 30
Equipped with the second motor 31, the output end of second motor 31 is fixedly installed with rotating bar 32, and the rotating bar 32 is rotatablely installed
At the top of the inner wall of reaction chamber 30, several symmetrical paddles 33 are fixedly installed in the rotating bar 32.
Hydrochloric acid after volatilization enters the inside of reaction chamber 30 by the second communicating pipe 29, passes through inlet tube inside reaction chamber 30
34 are passed through lye, and hydrochloric acid and lye occur neutralization reaction, produces salt and water, can be discharged, and nonhazardous is pollution-free, pass through the second electricity
Machine 31, rotating bar 32 and paddle 33 are arranged, and are stirred to solution, so that neutralization reaction is more abundant.
Heat-conducting plate 36 is fixedly installed in the end face outside of the reaction chamber 30, the heat-conducting plate 36 is internally provided with spiral shell
Coil road 37, the both ends of the helical pipe 37 are provided with circulation nozzle 38, and the circulation nozzle 38 is arranged through heat-conducting plate 36.
By heat-conducting plate 36 and helical pipe 37, it is passed through recirculated cooling water, the thermal energy generated to neutralization reaction recycles.
Valve is provided on the exhaust pipe 17, first discharge port 28, inlet tube 34 and the second outlet 35.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of diuron photochemical reaction device, including photochemical case (1), it is characterised in that: the bottom of the photochemical case (1) is fixed
Several equally distributed support columns (2) are installed, are provided with chamber door (3) on the front end face of the photochemical case (1), it is described photochemical
The left end face upper section of case (1) is fixedly installed with blow vent (4), and the left end face lower section of the photochemical case (1) is fixedly installed with
Exhaust pipe (17) is provided with recovering mechanism (7) on the right side of the photochemical case (1), the photochemical case (1) and recovering mechanism (7) it
Between be fixedly connected by the first communicating pipe (5), be provided with air pump (6) on first communicating pipe (5), the recovering mechanism (7)
Right side be provided with reaction mechanism (8).
2. a kind of diuron photochemical reaction device according to claim 1, it is characterised in that: the photochemical case (1) it is interior
Wall bottom is fixedly installed with pedestal (9), is provided with mounting disc (10) on the upper surface of the pedestal (9), the mounting disc (10)
Upper surface on offer several placing grooves (21), the placing groove (21) is internally provided with transparent beaker (11).
3. a kind of diuron photochemical reaction device according to claim 2, it is characterised in that: the upper end of the pedestal (9)
It is fixedly installed on face magnetic plate (18), it is equally distributed fixed to be fixedly installed with several on the lower end surface of the mounting disc (10)
Position bar (19) corresponds on the upper surface of the pedestal (9) and offers locating slot (20) at locating rod (19) position.
4. a kind of diuron photochemical reaction device according to claim 3, it is characterised in that: the photochemical case (1) it is upper
It is fixedly installed on end face first motor (12), the output end of the first motor (12) is fixedly installed with rotating disc (13), institute
It states rotating disc (13) setting and is fixedly installed with several on the inside of photochemical case (1), the lower end surface of the rotating disc (13)
The first high-pressure sodium lamp (14) of even distribution is fixedly installed with mounting rack (15), the installation on the inner sidewall of the photochemical case (1)
The position of frame (15) is corresponding with transparent beaker (11), be fixedly installed on the mounting rack (15) several equally distributed
Two high-pressure sodium lamps (16).
5. a kind of diuron photochemical reaction device according to claim 4, it is characterised in that: recovering mechanism (7) packet
It includes recycling bins (22), the right end face lower section of the recycling bins (22) is fixedly installed with first discharge port (28), the recycling bins
(22) it is fixedly installed on upper surface water storage box (23), is provided with conveyance conduit (24) on the water storage box (23), it is described defeated
The other end of pipeline (24) is sent to be fixedly installed with shower tray (26), the shower tray (26) is located at the inside of recycling bins (22), institute
It states and is fixedly installed with several equally distributed fog-spray nozzles (27) on the lower end surface of shower tray (26), on the conveyance conduit (24)
It is provided with water pump (25).
6. a kind of diuron photochemical reaction device according to claim 5, it is characterised in that: reaction mechanism (8) packet
It includes reaction chamber (30), is connected between the reaction chamber (30) and recycling bins (22) by the second communicating pipe (29), described second
One end of communicating pipe (29) is fixedly mounted in the right end face of recycling bins (22), and the other end of second communicating pipe (29) is solid
Surely it is plugged on the inside of reaction chamber (30), is fixedly installed with inlet tube (34) and second in the right end face of the reaction chamber (30)
Outlet (35), second outlet (35) are located at the lower section of inlet tube (34), consolidate on the upper surface of the reaction chamber (30)
Dingan County is equipped with the second motor (31), and the output end of second motor (31) is fixedly installed with rotating bar (32), the rotating bar
(32) it is rotatably installed at the top of the inner wall of reaction chamber (30), it is symmetrical to be fixedly installed with several on the rotating bar (32)
Paddle (33).
7. a kind of diuron photochemical reaction device according to claim 6, it is characterised in that: outside the reaction chamber (30)
It is fixedly installed on side end face heat-conducting plate (36), the heat-conducting plate (36) is internally provided with helical pipe (37), the spiral
The both ends of pipeline (37) are provided with circulation nozzle (38), and the circulation nozzle (38) is arranged through heat-conducting plate (36).
8. a kind of diuron photochemical reaction device according to claim 7, it is characterised in that: the exhaust pipe (17),
Valve is provided on one outlet (28), inlet tube (34) and the second outlet (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783693.9A CN110433750A (en) | 2019-08-23 | 2019-08-23 | A kind of diuron photochemical reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783693.9A CN110433750A (en) | 2019-08-23 | 2019-08-23 | A kind of diuron photochemical reaction device |
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| CN110433750A true CN110433750A (en) | 2019-11-12 |
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| CN201910783693.9A Withdrawn CN110433750A (en) | 2019-08-23 | 2019-08-23 | A kind of diuron photochemical reaction device |
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2019
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| CN102160956A (en) * | 2011-03-08 | 2011-08-24 | 江苏快达农化股份有限公司 | Method for absorbing and utilizing phosgene tail gas |
| CN103772344A (en) * | 2012-10-18 | 2014-05-07 | 中国科学院理化技术研究所 | Photochemical synthesis method of monochloroethylene carbonate and photochemical reactor |
| KR20170052019A (en) * | 2015-11-03 | 2017-05-12 | 류택형 | Photochemical Chlorine Dioxide Generator with long period usage and continuous usage using a block |
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Application publication date: 20191112 |