CN203820663U - Production system of 2-chlorine-4-nitrotoluene - Google Patents
Production system of 2-chlorine-4-nitrotoluene Download PDFInfo
- Publication number
- CN203820663U CN203820663U CN201420211725.0U CN201420211725U CN203820663U CN 203820663 U CN203820663 U CN 203820663U CN 201420211725 U CN201420211725 U CN 201420211725U CN 203820663 U CN203820663 U CN 203820663U
- Authority
- CN
- China
- Prior art keywords
- storage tank
- chlorine
- chlorination
- reactor
- nitrotoluene
- 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.)
- Expired - Fee Related
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a production system of 2-chlorine-4-nitrotoluene. A mixer is connected with a first chlorine reactor through a moving pump; a discharge hole of the first chlorine reactor is connected with an inlet of a second chlorine reactor; a discharge hole of the second chlorine reactor is connected with an inlet of a scrubbing tower; the scrubbing tower is provided with two discharge holes which are respectively connected with a waste liquid storage tank and a product storage tank; the mixer is connected with a raw material storage tank, a catalyst storage tank and a promoter storage tank; the second chlorine reactor is connected with a chlorine inlet and a waste gas outlet; the waste gas outlet is connected with an HCl waste gas absorbing device; and the scrubbing tower is connected with a water storage tank. The production system disclosed by the utility model is high in product yield and low in environment pollution, the chlorine which is not completely reacted in the second chlorine reactor can be fed into the first chlorine reactor for continuous reaction, so that the utilization rate of a material is improved, and the tail gas discharge amount is greatly reduced.
Description
Technical field
The utility model relates to the production system of the chloro-4-nitrotoluene of a kind of 2-, belongs to chemical industry equipment field.
Background technology
The chloro-4-nitrotoluene of 2-is a kind of important organic compound intermediate, mainly for the production of agricultural chemicals and medicine.The main method of producing at present the chloro-4-nitrotoluene of 2-is to be obtained through chlorination by para-nitrotoluene, detailed process is as follows: the para-nitrotoluene of melting is dropped in reactor, add catalyzer iron trichloride, pass into and the chlorine of para-nitrotoluene equimolar amount in 50～60 DEG C, then through in hot wash, sodium carbonate and after, put into frozen water, stir crystallization, filter, dry in the shade and obtain the chloro-4-nitrotoluene of 2-finished product.Existing production unit does not do reasonable processing for the tail gas producing in this production process and waste gas, and the recycle of material is poor, large to the pollution of environment.
Summary of the invention
The purpose of this utility model is to provide the production system of the chloro-4-nitrotoluene of a kind of 2-.
Defect that productive rate that the chloro-4-nitrotoluene of existing 2-production system that what the utility model solved is exists is low, environmental pollution is large etc.
The technical scheme that the utility model technical solution problem adopts is: the production system of the chloro-4-nitrotoluene of a kind of 2-, comprise mixing tank, chlorination reactor and water wash column, and described chlorination reactor comprises a chlorination reactor and No. two chlorination reactors; Described mixing tank is connected with a chlorination reactor by moving material pump; The discharge port of a described chlorination reactor is connected with the opening for feed of No. two chlorination reactors; The discharge port of described No. two chlorination reactors is connected with the opening for feed of water wash column; Described water wash column is provided with two discharge ports, is connected respectively with waste tank with product storage tank; On described mixing tank, be connected with raw material storage tank, catalyzer storage tank and promotor storage tank, described raw material storage tank is connected with mixing tank by volume pump; On described No. two chlorination reactors, be connected with chlorine inlet and waste gas outlet, described waste gas outlet is connected with HCl exhaust gas absorption device; On described water wash column, be connected with water storage tank.
Described HCl exhaust gas absorption device is tertiary effluent absorption unit.
The below of described No. two chlorination reactors is provided with reaction end gas outlet; Described reaction end gas outlet is connected with a chlorination reactor by pipeline.
The beneficial effects of the utility model are: compared with prior art, the production system that the utility model provides, it has the advantages such as the product yield of production is high, product purity is high, environmental pollution is low; In No. two chlorination reactors, the chlorine of complete reaction can not enter continuation reaction in a chlorination reactor, has improved utilization of materials, greatly reduces exhaust emissions amount.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the production system of the chloro-4-nitrotoluene of a kind of 2-, comprises mixing tank 1, chlorination reactor and water wash column 13, and described chlorination reactor comprises a chlorination reactor 7 and No. two chlorination reactors 8; Described mixing tank 1 is connected with a chlorination reactor 7 by moving material pump 6; The discharge port of a described chlorination reactor 7 is connected with the opening for feed of No. two chlorination reactors 8; The discharge port of described No. two chlorination reactors 8 is connected with the opening for feed of water wash column 13; Described water wash column 13 is provided with two discharge ports, is connected respectively with waste tank 15 with product storage tank 14; On described mixing tank 1, be connected with raw material storage tank 3, catalyzer storage tank 4 and promotor storage tank 5, described raw material storage tank 3 is connected with mixing tank 1 by volume pump 2; On described No. two chlorination reactors 8, be connected with chlorine inlet 9 and waste gas outlet 10, described waste gas outlet 10 is connected with HCl exhaust gas absorption device 11; Described HCl exhaust gas absorption device 11 is tertiary effluent absorption unit.On described water wash column 13, be connected with water storage tank 12.The below of described No. two chlorination reactors 8 is provided with reaction end gas outlet 16; Described reaction end gas outlet 16 is connected with a chlorination reactor 7 by pipeline; Can by No. two chlorination reactors 8 not the chlorine of complete reaction pass in a chlorination reactor and to continue reaction, improve raw material availability.
Claims (3)
1. a production system for the chloro-4-nitrotoluene of 2-, comprises mixing tank, chlorination reactor and water wash column, it is characterized in that described chlorination reactor comprises a chlorination reactor and No. two chlorination reactors; Described mixing tank is connected with a chlorination reactor by moving material pump; The discharge port of a described chlorination reactor is connected with the opening for feed of No. two chlorination reactors; The discharge port of described No. two chlorination reactors is connected with the opening for feed of water wash column; Described water wash column is provided with two discharge ports, is connected respectively with waste tank with product storage tank; On described mixing tank, be connected with raw material storage tank, catalyzer storage tank and promotor storage tank, described raw material storage tank is connected with mixing tank by volume pump; On described No. two chlorination reactors, be connected with chlorine inlet and waste gas outlet, described waste gas outlet is connected with HCl exhaust gas absorption device; On described water wash column, be connected with water storage tank.
2. the production system of the chloro-4-nitrotoluene of a kind of 2-as claimed in claim 1, is characterized in that described HCl exhaust gas absorption device is tertiary effluent absorption unit.
3. the production system of the chloro-4-nitrotoluene of a kind of 2-as claimed in claim 1, is characterized in that the below of described No. two chlorination reactors is provided with reaction end gas outlet; Described reaction end gas outlet is connected with a chlorination reactor by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211725.0U CN203820663U (en) | 2014-04-29 | 2014-04-29 | Production system of 2-chlorine-4-nitrotoluene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211725.0U CN203820663U (en) | 2014-04-29 | 2014-04-29 | Production system of 2-chlorine-4-nitrotoluene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820663U true CN203820663U (en) | 2014-09-10 |
Family
ID=51476183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420211725.0U Expired - Fee Related CN203820663U (en) | 2014-04-29 | 2014-04-29 | Production system of 2-chlorine-4-nitrotoluene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797710A (en) * | 2022-06-06 | 2022-07-29 | 常州新东化工发展有限公司 | Preparation method of chlorotoluene |
-
2014
- 2014-04-29 CN CN201420211725.0U patent/CN203820663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797710A (en) * | 2022-06-06 | 2022-07-29 | 常州新东化工发展有限公司 | Preparation method of chlorotoluene |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105112100A (en) | Continuous production technique of chlorinated paraffin | |
| CN101103725A (en) | Cartap environment-friendly type preparing method | |
| CN104557809A (en) | Method for producing furfural from pentose | |
| CN203820663U (en) | Production system of 2-chlorine-4-nitrotoluene | |
| CN102603514B (en) | Process for preparing sodium gluconate from crop straws | |
| CN101920938B (en) | Method for rectifying thionyl chloride | |
| CN113087104B (en) | System and method for preparing elemental sulfur through liquid-phase catalytic disproportionation | |
| CN103880040A (en) | Exhaust gas recycling method for large ammonia liquid nitrogen washing device | |
| CN101693660B (en) | Tubular continuous method for preparing cyclopropanecarboxylic acid | |
| CN103420784A (en) | Toluene selective chlorination method | |
| CN204891830U (en) | Gas -solid looks legal system is equipped with chlorination polyvinyl chloride's equipment in succession | |
| CN204490770U (en) | A kind of naphthalene continuous catalysis xanthator | |
| CN204324874U (en) | A kind of sulfur oxychloride Matter Transfer reactive system | |
| CN206927636U (en) | A kind of dehydrogenation of isobutane device waste water reclaiming device | |
| CN102617353B (en) | Preparation method of 3, 4-dichloronitrobenzene | |
| CN202555174U (en) | Tail gas cyclic utilization device for chlorination reaction of sulfonyl chloride during synthesis of 4-chloro-2-methoxy carbonyl methoxy imino-3-oxobutyric acid (CMOBA) | |
| CN105819405A (en) | Sulfur putting method in thionyl chloride refining process | |
| CN202054624U (en) | Ammonia gas recycling device for nicotinic acid process | |
| CN202989012U (en) | Device for removing tiny quantity of cyclopentadiene in isoprene through chemical method | |
| CN207047130U (en) | A kind of continuously hydrogen adding catalytic production system of 1 alpha naphthylamine | |
| CN202131245U (en) | Equipment for recycling bromotrifluoromethane | |
| CN203820664U (en) | Production system of 2-chlorine-4-amino-toluene | |
| CN201777890U (en) | Mother liquor circulation equipment system in Hou's process | |
| CN202387355U (en) | Treatment device for tail gas generated in electrolysis method for producing sodium perchlorate | |
| CN203728580U (en) | Sulfamic acid production line with dilute sulfuric acid recycling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20200429 |