CN202078889U - Production device for preparing 3-nitrobenzenesulfonic acid through tubular nitrobenzene sulfonation reaction - Google Patents
Production device for preparing 3-nitrobenzenesulfonic acid through tubular nitrobenzene sulfonation reaction Download PDFInfo
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- CN202078889U CN202078889U CN2011200933706U CN201120093370U CN202078889U CN 202078889 U CN202078889 U CN 202078889U CN 2011200933706 U CN2011200933706 U CN 2011200933706U CN 201120093370 U CN201120093370 U CN 201120093370U CN 202078889 U CN202078889 U CN 202078889U
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Abstract
管式硝基苯磺化反应制取间硝基苯磺酸生产装置，涉及一种化工产品的生产装置。生产装置包括硝基苯贮罐（1）、三氧化硫贮罐（2）、管式磺化反应器（3）、釜式磺化反应器（4）、物料输送泵（5）、喷射泵（6）及连接管线和附件（阀门、流量计、温度计、防爆膜、视镜等）。硝基苯与三氧化硫磺化剂按比例进入管式磺化反应器（3），管式磺化反应器（3）与釜式磺化反应器（4）串联使用或管式磺化反应器（3）独立使用。本装置适用于连续或间歇的磺化反应。本装置混合与传热效果好，反应速度快，生产效率高，操作弹性大，本实用新型提出的生产装置和生产方法适用于各种磺化反应生产过程。
The utility model relates to a production device for preparing m-nitrobenzenesulfonic acid by sulfonation reaction of nitrobenzene, which relates to a production device for chemical products. The production equipment includes nitrobenzene storage tank (1), sulfur trioxide storage tank (2), tubular sulfonation reactor (3), kettle sulfonation reactor (4), material delivery pump (5), jet pump (6) and connecting pipelines and accessories (valve, flow meter, thermometer, explosion-proof membrane, sight glass, etc.). Nitrobenzene and sulfur trioxide sulfonating agent enter the tubular sulfonation reactor (3) in proportion, and the tubular sulfonation reactor (3) is used in series with the kettle type sulfonation reactor (4) or the tubular sulfonation reactor (3) Independent use. This device is suitable for continuous or batch sulfonation reaction. The device has good mixing and heat transfer effects, fast reaction speed, high production efficiency and large operating flexibility. The production device and production method proposed by the utility model are suitable for various sulfonation reaction production processes.
Description
Technical field
The utility model relates to a kind of process units of chemical products, and what be specifically related to is that nitrobenzene and sulfur trioxide carry out the process units that sulfonating reaction is produced m-nitrobenzene sulfonic acid.
Technical background
The industrial in the past process units that carries out the nitrobenzene sulfonating reaction is the still formula sulfonation reactor that has chuck, production method is for dropping into nitrobenzene in the still formula sulfonation reactor earlier, start the stirring back and in still formula sulfonation reactor, drip sulfur trioxide, feed cooling agent in the still formula sulfonation reactor chuck and take out reaction heat, to keep suitable reaction temperature.The heat transfer area of this still formula sulfonation reactor is little, and heat transfer coefficient is low, can not effectively shift out reaction heat, has limited the rate of addition of sulfur trioxide, and the production cycle is long, and production efficiency is low; Sulfur trioxide adopts the dropping mode to enter in the still in the still formula sulfonating reaction production method, exists even have to stir, and also can't realize dripping the rapid dispersion of thing, so material concentration skewness in the still, hot-spot can't be avoided; In the still formula sulfonating reaction production method, the time of staying inequality of product in still, the in-depth reaction very easily appears in the early stage product that generates.Hot-spot and reactant time of staying inequality in still are the shortcomings that still formula sulfonating reaction can't overcome in the still.
Therefore, provide a kind of novel, sulfonation reaction device is very significant efficiently.
Summary of the invention
The utility model provides the tubular type nitrobenzene sulfonating reaction that a kind of heat and mass transport is effective, production efficiency is high, the product accessory substance is few process units.Adopt tubular type nitrator and kettle type nitrating reactor to unite and carry out sulfonating reaction, reaction is mainly finished in the tubular type nitrator, also can use the tubular type sulfonation reactor to finish sulfonating reaction separately.
The purpose of this utility model is achieved through the following technical solutions:
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, comprise nitrobenzene basin, sulfur trioxide basin, tubular type sulfonation reactor, still formula sulfonation reactor, material-handling pump, jet pump and connecting line and annex such as valve, flowmeter, thermometer, rupture pressure disc, visor, the tubular type sulfonation reactor is connected with still formula sulfonation reactor.
Described tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, and its tubular type sulfonation reactor is a separate unit or multi-platform combined; The tubular type sulfonation reactor is blank pipe or chemical filler is set in pipe and convection cell has the hybrid element of perturbation action, or be commercially available static mixer, or blank pipe, chemical filler is set in pipe and convection cell has the hybrid element of perturbation action, the combination of static mixer; The tubular type sulfonation reactor installs chuck outward or chuck is not set.
Described tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, it is characterized in that tubular type sulfonation reactor and still formula sulfonation reactor are to connect or tubular type sulfonation reactor independence shape.
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, and SO 3 sulfonated dose of its raw material enters or pressured poor, potential difference enters the tubular type sulfonation reactor through the jet pump suction.
The utlity model has following advantage:
1. this device both can be used for continuous production, also can be used for Batch Process.
2. tubular type sulfonation reactor heat transfer efficiency can in time shift out reaction heat far above still formula sulfonation reactor.
3. tubular type sulfonation reactor good mixing effect, reaction speed is fast, the production efficiency height.
4. when being used for producing continuously, material time of staying in the tubular type sulfonation reactor is even, can realize the laminar flow reaction, can overcome the uneven shortcoming of residence time of material in the batch still formula sulfonation reactor, obviously reduces accessory substance and generates.
5. when being used for intermittent reaction, owing to set up the tubular type sulfonation reactor, can realize rapidly mixing the material that participates in reaction is established member in jet pump and tubular type sulfonation reactor after, can overcome that traditional still formula sulfonation reactor drips charging and the fatal shortcoming of density unevenness and hot-spot in the still that causes.
6. the nitrobenzene sulfonating reaction of this device proposition is produced m-nitrobenzene sulfonic acid process units production efficiency height, operating flexibility is big, accessory substance is few, good product quality.
Description of drawings
Fig. 1 is that the tubular type nitrobenzene sulfonating reaction that the tubular type sulfonation reactor is connected with still formula sulfonation reactor is produced m-nitrobenzene sulfonic acid process units schematic diagram.
Fig. 2 is that the tubular type nitrobenzene sulfonating reaction of no still formula sulfonation reactor is produced m-nitrobenzene sulfonic acid process units schematic diagram.
Fig. 3 is that the tubular type nitrobenzene sulfonating reaction of no still formula sulfonation reactor, the circulation of reactionless product m-nitrobenzene sulfonic acid is produced m-nitrobenzene sulfonic acid process units schematic diagram.
The specific embodiment
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, comprises nitrobenzene basin, sulfur trioxide basin, tubular type sulfonation reactor, still formula sulfonation reactor, material-handling pump, jet pump and connecting line and annex (valve, flowmeter, thermometer, rupture pressure disc, visor etc.).The tubular type sulfonation reactor is connected with still formula sulfonation reactor and is used or the tubular type sulfonation reactor independently uses.
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, but its tubular type sulfonation reactor separate unit uses or multi-platform combined use; The tubular type sulfonation reactor is blank pipe or the hybrid element that convection cells such as chemical filler have perturbation action is set in pipe; The tubular type sulfonation reactor can all or part ofly be commercially available static mixer; Tubular type sulfonation reactor peripheral hardware chuck.
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units can only be provided with the tubular type sulfonation reactor, and still formula sulfonation reactor is not set.
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, and its SO 3 sulfonated dose enters the tubular type sulfonation reactor through jet pump or pressured poor, potential difference.
Tubular type nitrobenzene sulfonating reaction is produced m-nitrobenzene sulfonic acid process units using method, comprises the adjustment flow direction of material, makes nitrobenzene return the nitrobenzene basin through tubular type sulfonation reactor and the heating of still formula sulfonation reactor or after being cooled to set point of temperature; Adjust flow direction of material, make SO 3 sulfonated dose to return the sulfur trioxide basin through tubular type sulfonation reactor and the heating of still formula sulfonation reactor or after being cooled to set point of temperature; Adjust flow direction of material, make nitrobenzene and SO 3 sulfonated dose enter the tubular type sulfonation reactor in proportion and carry out sulfonating reaction through product pump and jet pump, removes reaction heat by cooling medium in the tubular type sulfonation reactor chuck, reactant is formed and is qualifiedly gone subsequent processing or reactant to enter still formula sulfonation reactor to continue to react to reactant and form the qualified subsequent processing that goes.
Also can make the circulation of partial reaction product m-nitrobenzene sulfonic acid enter the tubular type sulfonation reactor once more.Comprise nitrobenzene, SO 3 sulfonated dose, circulation m-nitrobenzene sulfonic acid temperature and the circulation m-nitrobenzene sulfonic acid flow-control initial reaction state adjusted.
The above tubular type nitrobenzene sulfonating reaction produces the m-nitrobenzene sulfonic acid process units and using method is applicable to various sulfonating reaction production processes.
Embodiment one
Tubular type nitrobenzene sulfonating reaction is produced the m-nitrobenzene sulfonic acid process units, comprises that nitrobenzene basin (1), sulfur trioxide basin (2), tubular type sulfonation reactor (3) are that 5 series connection are arranged vertically, still formula sulfonation reactor (4), material-handling pump (5), jet pump (6) and connecting line and annex.Tubular type sulfonation reactor (3) is connected with still formula sulfonation reactor (4), and the circulation of partial reaction product m-nitrobenzene sulfonic acid enters tubular type sulfonation reactor (3) once more, as Fig. 1.
Embodiment two
Embodiment two and embodiment one are basic identical, and difference is that tubular type sulfonation reactor (3) is arranged vertically for separate unit.
Embodiment three
Embodiment three and embodiment one are basic identical, and difference is that tubular type sulfonation reactor (3) is that 5 series connection are horizontally disposed.
Embodiment four
Embodiment four and embodiment one are basic identical, and difference is that tubular type sulfonation reactor (3) is that 5 parallel connections are arranged vertically.
Embodiment five
Embodiment five and embodiment one are basic identical, and difference is that tubular type sulfonation reactor (3) is that 12 series connection are arranged vertically, and no still formula sulfonation reactor (4) is as Fig. 2.
Embodiment six
Embodiment six and embodiment one are basic identical, and difference is that tubular type sulfonation reactor (3) is that 12 series connection are arranged vertically, no still formula sulfonation reactor (4), and reactionless product m-nitrobenzene sulfonic acid circulation is as Fig. 3.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200933706U CN202078889U (en) | 2011-04-01 | 2011-04-01 | Production device for preparing 3-nitrobenzenesulfonic acid through tubular nitrobenzene sulfonation reaction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200933706U CN202078889U (en) | 2011-04-01 | 2011-04-01 | Production device for preparing 3-nitrobenzenesulfonic acid through tubular nitrobenzene sulfonation reaction |
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| CN202078889U true CN202078889U (en) | 2011-12-21 |
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| CN2011200933706U Expired - Fee Related CN202078889U (en) | 2011-04-01 | 2011-04-01 | Production device for preparing 3-nitrobenzenesulfonic acid through tubular nitrobenzene sulfonation reaction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816092A (en) * | 2012-08-31 | 2012-12-12 | 江苏中丹集团股份有限公司 | Device for continuously preparing m-benzenedisulfonic acid |
| CN104226207A (en) * | 2014-08-28 | 2014-12-24 | 沈阳化工大学 | Double-side cooling concentric tube-in-tube type sulfonating reactor |
| CN104474986A (en) * | 2014-11-11 | 2015-04-01 | 王孝通 | Gas sulfur trioxide continuous sulfonation production device |
-
2011
- 2011-04-01 CN CN2011200933706U patent/CN202078889U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816092A (en) * | 2012-08-31 | 2012-12-12 | 江苏中丹集团股份有限公司 | Device for continuously preparing m-benzenedisulfonic acid |
| CN102816092B (en) * | 2012-08-31 | 2015-10-14 | 江苏中丹集团股份有限公司 | The device of benzene disulfonic acid between a kind of serialization preparation |
| CN104226207A (en) * | 2014-08-28 | 2014-12-24 | 沈阳化工大学 | Double-side cooling concentric tube-in-tube type sulfonating reactor |
| CN104226207B (en) * | 2014-08-28 | 2016-02-24 | 沈阳化工大学 | Double-sided cooled concentric locking collar tubular sulfonator |
| CN104474986A (en) * | 2014-11-11 | 2015-04-01 | 王孝通 | Gas sulfur trioxide continuous sulfonation production device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140401 |