CN213467334U - Synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate - Google Patents
Synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate Download PDFInfo
- Publication number
- CN213467334U CN213467334U CN202022267502.4U CN202022267502U CN213467334U CN 213467334 U CN213467334 U CN 213467334U CN 202022267502 U CN202022267502 U CN 202022267502U CN 213467334 U CN213467334 U CN 213467334U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- absorption tower
- gas absorption
- methyl
- bromomethyl
- 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.)
- Active
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a compound preparation technical field, concretely relates to 3-bromomethyl-2-chlorine-4-methylsulfonyl methyl benzoate's synthesis system. Comprises a sodium methyl mercaptide metering tank, a reaction kettle, a first-stage tail gas absorption tower and a second-stage tail gas absorption tower; the discharge hole of the sodium methyl mercaptide metering tank is connected with the reaction kettle through a pipeline; the filler in the first-stage tail gas absorption tower is a pall ring, the liquid distributor in the second-stage tail gas absorption tower is a downward-spraying rotary atomizing nozzle, and the lower part of the filler of the second-stage tail gas absorption tower is provided with an upward-spraying rotary atomizing nozzle. In order to eliminate the hidden danger that methyl mercaptan sodium self taste brought completely the utility model discloses taken methyl mercaptan sodium metering tank and used reation kettle for the entire system secondary sodium hypochlorite aqueous solution reaction tower absorb, effectively guaranteed the smooth operation of 3-bromomethyl-2-chlorine-4-methyl sulfonyl methyl benzoate product.
Description
Technical Field
The utility model relates to a preparation facilities technical field of compound, concretely relates to 3-bromomethyl-2-chlorine-4-methylsulfonyl methyl benzoate's synthesis system.
Background
The 3-bromomethyl-2-chloro-4-methylsulfonylbenzoic acid methyl ester is an important intermediate for synthesizing products such as tembotrione, triazophone, topramezone and the like, and has very wide market prospect. The sodium methyl mercaptide is an important raw material for synthesizing 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate products, but the raw material has foul smell which can cause pollution to the surrounding environment and is difficult to bear after being controlled improperly, and in order to solve the problems, the utility model provides a synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate, which comprises a sodium methyl mercaptide metering tank, a reaction kettle, a first-stage tail gas absorption tower and a second-stage tail gas absorption tower;
the discharge hole of the sodium methyl mercaptide metering tank is connected with the reaction kettle through a pipeline; a tail gas outlet of the reaction kettle is connected with the primary tail gas absorption tower through a pipeline, and the primary tail gas absorption tower is connected with the secondary tail gas absorption tower through a pipeline;
the primary tail gas absorption tower and the secondary tail gas absorption tower are sodium hypochlorite spray towers; the filler in the first-stage tail gas absorption tower is a pall ring, the liquid distributor in the second-stage tail gas absorption tower is a downward-spraying rotary atomizing nozzle, and the lower part of the filler of the second-stage tail gas absorption tower is provided with an upward-spraying rotary atomizing nozzle.
Synthetic system through setting up methyl sulfur sodium alcoholate metering tank, can guarantee the accuracy of feeding volume, further set up and two-stage tail gas absorption tower, can guarantee that methyl sulfur sodium alcoholate is absorbed completely, solve it and give off the great problem of back stink. Meanwhile, considering that the concentration of the residual sodium methyl mercaptide in the primary absorption tower is higher, the concentration of the sodium hypochlorite for spraying is also higher, the Baore ring packing is added to increase the retention time of the sodium hypochlorite in the absorption tower so as to ensure that the sodium hypochlorite is fully contacted with the gas to be treated, furthermore, the liquid distributor in the secondary absorption tower is selected to be a downward-spraying rotary atomizing nozzle, the lower part of the packing is provided with an upward-spraying rotary atomizing nozzle, and the sodium methyl mercaptide in the material gas can be fully and completely absorbed by the arrangement of the upper direction and the lower direction.
Preferably, the air inlet of the secondary tail gas absorption tower is positioned below the upper-spraying type rotary atomizing spray head. Because gas all is from bottom to top motion, through above-mentioned setting for the gaseous all upward spout formula rotatory atomizer through the lower part of waiting to handle, make gas and sodium hypochlorite carry out abundant contact, handle gas more thoroughly.
Preferably, the lower-spraying rotary atomizer and the upper-spraying rotary atomizer are both connected with a liquid outlet of a secondary sodium hypochlorite suction pump, and a liquid inlet of the secondary sodium hypochlorite suction pump is connected to the bottom of the secondary tail gas absorption tower. With the above arrangement, the arrangement of the suction pump can be simplified.
Preferably, the filler in the primary tail gas absorption tower is a ceramic pall ring. Because the concentration of sodium hypochlorite in the primary absorption tower is generally higher, the ceramic pall ring is selected to prevent corrosion, and the service life of the device is effectively prolonged.
Preferably, be equipped with one-level sodium hypochlorite suction pump on the one-level tail gas absorption tower, the inlet of suction pump is connected to the bottom of one-level tail gas absorption tower, the liquid outlet of one-level sodium hypochlorite suction pump pass through the pipeline with the inlet of the liquid distributor of one-level tail gas absorption tower links to each other. Through the arrangement, the recycling of sodium hypochlorite can be realized.
Preferably, a residue outlet of the sodium methyl mercaptide metering tank is connected with an air inlet of the primary tail gas absorption tower. Through the arrangement, the sodium methyl mercaptide in the metering tank can be treated correspondingly, and the sodium methyl mercaptide is ensured not to overflow to the external environment.
Preferably, a condenser is arranged at the gas outlet of the secondary tail gas absorption tower. Through setting up the condenser, can stay the moisture in the waste gas in the second grade tail gas absorption tower, realize the drying to tail gas.
The utility model discloses following beneficial effect has:
device carry out specific injecing through setting up two-stage sodium hypochlorite absorption tower and to the structure in the absorption tower, can realize absorbing the complete of methyl mercaptan sodium.
Drawings
FIG. 1 is a schematic diagram of a system for the synthesis of methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate as described in example 1;
in the figure: 1 is methyl mercaptan sodium metering tank, 2 is reation kettle, 3 is one-level tail gas absorption tower, 4 is second grade tail gas absorption tower, 5 is the filler, 6 is down spout formula rotation type atomizer, 7 is the rotatory atomizer of upper spout formula, 8 is second grade sodium hypochlorite suction pump, 9 is one-level sodium hypochlorite suction pump.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1
The embodiment relates to a synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate (a schematic diagram of the synthesis system is shown in figure 1), which comprises a sodium methyl mercaptide metering tank 1, a reaction kettle 2, a primary tail gas absorption tower 3 and a secondary tail gas absorption tower 4;
the discharge hole of the sodium methyl mercaptide metering tank 1 is connected with the reaction kettle 2 through a pipeline; a tail gas outlet of the reaction kettle is connected with the primary tail gas absorption tower 3 through a pipeline, and the primary tail gas absorption tower is connected with the secondary tail gas absorption tower 4 through a pipeline;
the primary tail gas absorption tower and the secondary tail gas absorption tower are sodium hypochlorite spray towers; the filler 5 in the first-stage tail gas absorption tower is a pall ring, the liquid distributor in the second-stage tail gas absorption tower is a downward-spraying rotary atomizer 6, and the lower part of the filler of the second-stage tail gas absorption tower is provided with an upward-spraying rotary atomizer 7.
Example 2
This example relates to a synthesis system of methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate, which is different from example 1 in that the air inlet of the secondary tail gas absorption tower is located below the upper-spray rotary atomizer.
The lower spraying type rotary atomizing spray head and the upper spraying type rotary atomizing spray head are both connected with a liquid outlet of a secondary sodium hypochlorite suction pump 8, and a liquid inlet of the secondary sodium hypochlorite suction pump is connected to the bottom of the secondary tail gas absorption tower.
The filler in the first-stage tail gas absorption tower is a ceramic pall ring. Be equipped with one-level sodium hypochlorite suction pump 9 on the one-level tail gas absorption tower, the inlet of suction pump is connected to the bottom of one-level tail gas absorption tower, the liquid outlet of one-level sodium hypochlorite suction pump pass through the pipeline with the inlet of the liquid distributor of one-level tail gas absorption tower links to each other.
And the excess material outlet of the sodium methyl mercaptide metering tank is connected with the air inlet of the primary tail gas absorption tower, and the air outlet of the secondary tail gas absorption tower is provided with a condenser.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A synthetic system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate is characterized by comprising a sodium methyl mercaptide metering tank, a reaction kettle, a primary tail gas absorption tower and a secondary tail gas absorption tower;
the discharge hole of the sodium methyl mercaptide metering tank is connected with the reaction kettle through a pipeline; a tail gas outlet of the reaction kettle is connected with the primary tail gas absorption tower through a pipeline, and the primary tail gas absorption tower is connected with the secondary tail gas absorption tower through a pipeline;
the primary tail gas absorption tower and the secondary tail gas absorption tower are sodium hypochlorite spray towers; the filler in the first-stage tail gas absorption tower is a pall ring, the liquid distributor in the second-stage tail gas absorption tower is a downward-spraying rotary atomizing nozzle, and the lower part of the filler of the second-stage tail gas absorption tower is provided with an upward-spraying rotary atomizing nozzle.
2. The system for synthesizing methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate according to claim 1, wherein the air inlet of the secondary tail gas absorption tower is located below the upper-spraying rotary atomizer.
3. The system for synthesizing methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate according to claim 1, wherein the lower-spray rotary atomizer and the upper-spray rotary atomizer are both connected to a liquid outlet of a secondary sodium hypochlorite suction pump, and a liquid inlet of the secondary sodium hypochlorite suction pump is connected to the bottom of the secondary tail gas absorption tower.
4. The system for synthesizing 3-bromomethyl-2-chloro-4-methylsulfonylbenzoic acid methyl ester according to claim 1, wherein the packing in the primary tail gas absorption tower is ceramic pall ring.
5. The system for synthesizing methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate according to claim 1, wherein a primary sodium hypochlorite suction pump is disposed on the primary tail gas absorption tower, a liquid inlet of the suction pump is connected to the bottom of the primary tail gas absorption tower, and a liquid outlet of the primary sodium hypochlorite suction pump is connected to a liquid inlet of a liquid distributor of the primary tail gas absorption tower through a pipeline.
6. The system for synthesizing methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate according to claim 1, wherein the residue outlet of the sodium methyl mercaptide metering tank is connected to the gas inlet of the primary tail gas absorption tower.
7. The synthesis system of methyl 3-bromomethyl-2-chloro-4-methylsulfonylbenzoate according to claim 1, wherein a condenser is disposed at the gas outlet of the secondary tail gas absorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267502.4U CN213467334U (en) | 2020-10-13 | 2020-10-13 | Synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267502.4U CN213467334U (en) | 2020-10-13 | 2020-10-13 | Synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213467334U true CN213467334U (en) | 2021-06-18 |
Family
ID=76366430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022267502.4U Active CN213467334U (en) | 2020-10-13 | 2020-10-13 | Synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213467334U (en) |
-
2020
- 2020-10-13 CN CN202022267502.4U patent/CN213467334U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208694682U (en) | A kind of energy-saving and emission-reduction exhaust gas desulfurization column | |
| CN104208994B (en) | Sodium metabisulfite exhaust gas desulfurization process | |
| CN213467334U (en) | Synthesis system of 3-bromomethyl-2-chloro-4-methylsulfonyl methyl benzoate | |
| CN202007218U (en) | Wet-oxidation, desulfurization, absorption and reaction tower for natural gas | |
| CN206350992U (en) | A kind of efficient deodorizing spray column for exhaust-gas treatment | |
| CN216404316U (en) | Raw material desulphurization unit for coal chemical industry synthetic ammonia | |
| CN205288071U (en) | Spraying absorb tower for wet desulfurization | |
| CN210138591U (en) | Novel rubber tire processing production is with mixing device | |
| CN204684930U (en) | A kind of alkali lye spray acid-fume absorber | |
| CN104524973A (en) | Liquefied gas desulfurizing agent | |
| CN217287827U (en) | Zero-emission ammonia tail gas absorption tower | |
| CN208287776U (en) | A kind of flue gas desulphurization system | |
| CN216654025U (en) | Deacidification spray tower | |
| CN214345435U (en) | Hydrogen chloride absorbing device | |
| CN207024937U (en) | A kind of convenient maintenance type purifying column | |
| CN207462975U (en) | A kind of desulfurization and denitrification integral equipment | |
| CN201684534U (en) | Nitrated tail gas absorption apparatus | |
| CN204093295U (en) | A kind of desulfurizing tower import sprayer unit | |
| CN208627000U (en) | A kind of spray desulfurizing tower with multistep treatment for smoke gas treatment | |
| CN208878275U (en) | A kind of desulfurizer improving desulfuration efficiency | |
| CN207822752U (en) | A kind of system for purifying sulfur dioxide | |
| CN219064222U (en) | Polyaluminum chloride tail gas waste heat recovery device | |
| CN205627589U (en) | Desulfurizing tower | |
| CN216367366U (en) | Skid-mounted desulfurization device | |
| CN201249093Y (en) | Natural gas desulfurization absorption reaction tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |