CN202590801U - Nitration reaction kettle for CLT acid production - Google Patents
Nitration reaction kettle for CLT acid production Download PDFInfo
- Publication number
- CN202590801U CN202590801U CN 201220281153 CN201220281153U CN202590801U CN 202590801 U CN202590801 U CN 202590801U CN 201220281153 CN201220281153 CN 201220281153 CN 201220281153 U CN201220281153 U CN 201220281153U CN 202590801 U CN202590801 U CN 202590801U
- Authority
- CN
- China
- Prior art keywords
- axial flow
- flow type
- aerofoil profile
- type stirrer
- double
- 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 nitration reaction kettle for CLT acid production. The nitration reaction kettle comprises a kettle body, wherein a raw material inlet and a material outlet are respectively formed in the top and the bottom of the kettle body; a stirring shaft which is driven by a power device is perpendicularly arranged in the kettle body and is provided with a double-layer wing type axial-flow stirrer; and the double-layer wing type axial-flow stirrer comprises an upper wing type axial-flow stirrer and a lower wing type axial-flow stirrer which are respectively arranged in the middle and at the bottom of the stirring shaft. The nitration reaction kettle relates to the technical field of CLT acid production, material mixing degree is high, nitric acid dripping time is short, and reaction efficiency is high.
Description
Technical field
The utility model relates to CLT acid production technical field, relates in particular to a kind of nitration reaction still of CLT acid production usefulness.
Background technology
CLT acid, chemical name 2-amino-4-methyl-5-chloro benzene sulfonic acid.CLT acid is a kind of white or blush powder, and is water insoluble.CLT acid is a kind of important organic red pigment intermediate, but color lake organic pigments such as the red 36b of bright red, the new treasured of synthetic plastic, bronze red c.This pigment is widely used in paint, coating, colored ink, rubber and coloring plastic etc.CLT acid is that world's consumption last year is crossed one of organic intermediate of ten thousand tons.
The synthetic route of CLT acid has a lot, mainly contains according to the raw material difference: toluene sulfonation route, ortho-chlorotolu'ene bromination route, the nitrated route of ortho-chlorotolu'ene, meta-xylene route, meta-aminotoluene route and paratoluensulfonyl chloride route etc.Mainly adopt the toluene sulfonation route at present on the domestic industry.Toluene sulfonation route production process successively through superchlorination, nitrated, neutralization, obtains through acid out after the reduction for utilizing toluene sulfonation in the concentrated sulfuric acid then.During commercial production, toluene is used sulfuric acid sulfonation, add sulfuric acid after the sulfonation and feed chlorinated with chlorine, carry out nitratedly again with nitric acid, put into a large amount of saturated aqueous common salts then and saltout, filter, washing obtains 2-nitro-4-methyl-5-chlorobenzenesulfonic acid.Will be wherein and, reduction, filtration, acidifying, filtration, drying, obtain finished product CLT acid.Advantages such as this is the industrial method that generally adopts at present both at home and abroad, and it is rich and easy to get that this method has raw material sources, and technical maturity, cost are lower; But this route reaction route is long, operation is many, and the reaction isomers is many, and total recovery has only about 50%, adds that the course of reaction quantity of three wastes is big, is difficult to handle, and causes this method to can not get bigger development.
The nitration reaction still that nitrated operation is used generally adopts enamel inner container, the enamel inner container resistance to compression, anti-open, intensity is big, acid and alkali-resistance, high temperature resistant, water-fast and steam, is desirable inner lining material, but the enamel inner container poor thermal conductivity.In the nitration reaction process, because nitration reaction is violent exothermic reaction, therefore, keeping suitable temperature is the key of technology controlling and process.In operation, under the normal reaction conditions be 58-63 ℃, 720 kilograms of red fuming nitric acid (RFNA) dropping times are 13 hours.Produce summer, because cooling water temperature is high, prolonged in the reaction time.The adding speed of material is certain, is the key factor of restriction product production capacity and quality.Present nitration reaction still generally adopts common vane type to stir, and the mixing of materials degree is general, so the nitric acid dropping time is longer, and reaction efficiency is lower, has influenced product quality.
The utility model content
The utility model technical problem to be solved is: to the deficiency that prior art exists, the nitration reaction still of the CLT acid production usefulness that a kind of mixing of materials degree is good, the nitric acid dropping time is short, reaction efficiency is high is provided.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
Be used for the nitration reaction still that CLT acid is produced; Comprise kettle; Said kettle top and bottom are respectively equipped with material inlet and material outlet; Vertically be provided with the shaft that is driven by power set in the said kettle, said shaft is provided with double-deck aerofoil profile axial flow type stirrer, and said double-deck aerofoil profile axial flow type stirrer comprises upper strata aerofoil profile axial flow type stirrer and the lower floor's aerofoil profile axial flow type stirrer of being located at said shaft middle part and bottom respectively.
As a kind of scheme, said shaft and double-deck aerofoil profile axial flow type stirrer removably connect.
As a kind of improvement, said shaft and double-deck aerofoil profile axial flow type stirrer removably connect through wheel hub.
As a kind of scheme, said double-deck aerofoil profile axial flow type stirrer is the double-deck aerofoil profile axial flow type stirrer of enamel.
As a kind of scheme, said upper strata aerofoil profile axial flow type stirrer and lower floor's aerofoil profile axial flow type stirrer include three stirring pieces, and said three stirring pieces are 120 degree angles each other and are provided with.
Owing to adopted technique scheme, the beneficial effect of the utility model is:
1. the shaft of the utility model is provided with double-deck aerofoil profile axial flow type stirrer, and said double-deck aerofoil profile axial flow type stirrer comprises upper strata aerofoil profile axial flow type stirrer and the lower floor's aerofoil profile axial flow type stirrer of being located at said shaft middle part and bottom respectively.Aerofoil profile axial flow type stirrer circulation ability is strong, discharge rate is big, and the mobile mixing to material of the whole circular that fluid forms in the nitration reaction still is highly effective; Have also that energy consumption is low, the bigger advantage of stirring piece area occupation ratio of agitator, can reduce liquid passing diametrically, prolonged time of contact in the axial direction, improved stirring and mixing effect.The aerofoil profile axial flow type stirrer makes the as a whole systemic circulation of the flow pattern of reaction mass in the nitration reaction still; The shear action that is stirred the generation of sheet discharge currents behind the nitric acid entering agitator district is separated into the liquid pearl that varies in size; Get into the main body circulation subsequently, form whole the mixing.Nitric acid drips the time by original 13 hours, shortens to 10 hours, and reaction efficiency improves 23%.
2. shaft of the utility model and double-deck aerofoil profile axial flow type stirrer removably connect, and make things convenient for the installation and maintenance of shaft and double-deck aerofoil profile axial flow type stirrer; Removably connect through wheel hub, simplified the installation and removal process.Double-deck aerofoil profile axial flow type stirrer is the double-deck aerofoil profile axial flow type stirrer of enamel, acid-alkali-corrosive-resisting, and long service life, and reduced the side reaction of agitator and material.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment,
Among the figure: 1. kettle, 11. material inlets, 12. material outlets, 13. motors, 14. shafts, 21. upper strata aerofoil profile axial flow type stirrers, 22. lower floor's aerofoil profile axial flow type stirrers, 23. wheel hubs, 24. stirring pieces.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in accompanying drawing; Be used for the nitration reaction still that CLT acid is produced; Comprise kettle 1, kettle 1 top and bottom are respectively equipped with material inlet 11 and material outlet 12, vertically are provided with the shaft 14 that is driven by motor 13 in the kettle 1; Shaft 14 is provided with the double-deck aerofoil profile axial flow type stirrer of enamel, and the double-deck aerofoil profile axial flow type stirrer of enamel comprises the upper strata aerofoil profile axial flow type stirrer 21 and lower floor's aerofoil profile axial flow type stirrer 22 of being located at shaft 14 middle parts and bottom respectively.Shaft 14 removably connects through wheel hub 23 with the double-deck aerofoil profile axial flow type stirrer of enamel.Upper strata aerofoil profile axial flow type stirrer 21 includes 24, three stirring pieces 24 of three stirring pieces with lower floor's aerofoil profile axial flow type stirrer 22 and is the setting of 120 degree angles each other.
Claims (5)
1. be used for the nitration reaction still that CLT acid is produced; Comprise kettle; Said kettle top and bottom are respectively equipped with material inlet and material outlet; Vertically be provided with the shaft that is driven by power set in the said kettle, it is characterized in that: said shaft is provided with double-deck aerofoil profile axial flow type stirrer, and said double-deck aerofoil profile axial flow type stirrer comprises upper strata aerofoil profile axial flow type stirrer and the lower floor's aerofoil profile axial flow type stirrer of being located at said shaft middle part and bottom respectively.
2. the nitration reaction still that is used for CLT acid production as claimed in claim 1, it is characterized in that: said shaft and double-deck aerofoil profile axial flow type stirrer removably connect.
3. the nitration reaction still that is used for CLT acid production as claimed in claim 2, it is characterized in that: said shaft and double-deck aerofoil profile axial flow type stirrer removably connect through wheel hub.
4. the nitration reaction still that is used for CLT acid production as claimed in claim 1 is characterized in that: said double-deck aerofoil profile axial flow type stirrer is the double-deck aerofoil profile axial flow type stirrer of enamel.
5. the nitration reaction still that is used for CLT acid production as claimed in claim 1, it is characterized in that: said upper strata aerofoil profile axial flow type stirrer and lower floor's aerofoil profile axial flow type stirrer include three stirring pieces, and said three stirring pieces are 120 degree angles each other and are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281153 CN202590801U (en) | 2012-06-13 | 2012-06-13 | Nitration reaction kettle for CLT acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281153 CN202590801U (en) | 2012-06-13 | 2012-06-13 | Nitration reaction kettle for CLT acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202590801U true CN202590801U (en) | 2012-12-12 |
Family
ID=47308383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220281153 Expired - Fee Related CN202590801U (en) | 2012-06-13 | 2012-06-13 | Nitration reaction kettle for CLT acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202590801U (en) |
-
2012
- 2012-06-13 CN CN 201220281153 patent/CN202590801U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202725165U (en) | Particle crystallization reaction system for preparation of lithium battery material precursor | |
| CN206688615U (en) | A kind of sponge foaming agitating device | |
| CN202962442U (en) | Liquid phase reaction device for synthesizing polymethoxy dialkyl ether | |
| CN208213023U (en) | A kind of efficiently printing and dyeing raw material mixing machine | |
| CN206980720U (en) | A kind of chemical industry reactor | |
| CN202590801U (en) | Nitration reaction kettle for CLT acid production | |
| CN105251526B (en) | A kind of preparation method and applications of core-shell material catalyst | |
| CN202590800U (en) | Reduction kettle for production of CLT acid | |
| CN202590799U (en) | Sulfonation reaction still for producing chlorotoluene (CLT) acid | |
| CN202595008U (en) | 2-amino-4-methyl-5-chlorobenzene sulfonic (CLT) acid production equipment | |
| CN209848875U (en) | Vertical reation kettle of high-efficient stirring | |
| CN205462049U (en) | Gyration runner pushes away large -scale stirred tank of STREAMING | |
| CN204699690U (en) | Reactor fan leaf type agitator | |
| CN204490770U (en) | A kind of naphthalene continuous catalysis xanthator | |
| CN204107495U (en) | A kind of retaining device about stirred tank | |
| CN203507891U (en) | Stirrer | |
| CN102924260B (en) | Technique and device for continuously producing stearate by low-temperature dry process | |
| CN209646473U (en) | A kind of environmental-friendly aqueous coating hermetically sealed paint reaction kettle stirring tooling | |
| CN202823374U (en) | Reaction device for synthesizing hydroxyethyl bis-stearamide | |
| CN206666620U (en) | A kind of sour molten tank for improving rare earth chloride liquid amount to obtain | |
| CN202595007U (en) | Chloration reaction tower used for CLT acid production | |
| CN204234089U (en) | The special carburizing reagent still of a kind of 2-hydroxyl-3-naphthoic acid | |
| CN206199058U (en) | A kind of spiral agitator | |
| CN106268489A (en) | High-efficiency stirrer | |
| CN105315177B (en) | A kind of DSD acid synthesis technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121212 Termination date: 20130613 |