CN205740828U - A kind of continuous nitrification reaction unit - Google Patents
A kind of continuous nitrification reaction unit Download PDFInfo
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- CN205740828U CN205740828U CN201620612275.5U CN201620612275U CN205740828U CN 205740828 U CN205740828 U CN 205740828U CN 201620612275 U CN201620612275 U CN 201620612275U CN 205740828 U CN205740828 U CN 205740828U
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- solid acid
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Abstract
This utility model relates to a kind of continuous nitrification reaction unit, and described reaction unit includes material storage tank, solid acid storage tank, circulating pump, pipe-line mixer, cooler, quantizer, solid acid recycling can and product storage tank.The utility model has the advantage of: this utility model continuous nitrification reaction unit, compared with tradition continuous nitrification response system, add quantizer, the product after cooling is made to be re-fed into product storage tank after being layered by quantizer, make the impurity in entrance product storage tank will not adulterate acid solution, and then substantially increase the quality of product；Meanwhile, solid acid outlet C connects with solid acid storage tank also by conveyance conduit F, and then the solid acid after layering can be made to be recycled, thus reduces production cost.
Description
Technical field
This utility model belongs to technical field of chemical, particularly to a kind of continuous nitrification reaction unit.
Background technology
Toluene 24 diamine and 2,6-dimethylaniline are the important intermediate of pesticide, veterinary drug, medicine and dyestuff.Benzene and toluene
Deng nitrification be highly developed technique, general use many pots of series connection nitrifications or circulation nitrifications.Now with paracide as raw material, it
On phenyl ring than toluene many methyl, character is the most active, it is easier to cascade reaction occurs and produces the by-product such as dinitride
Thing, and side reaction is difficult to control to, by-product is far longer than the level of other aromatic nitrations.This not only increases consumption, and also increases not
Safety factors, brings the biggest difficulty to the isomer separation of rear operation.
Therefore, for above-mentioned phenomenon, now using tubular type continuous nitrification technique, this technological process is by circulating pump, line-blending
Device and cooler form a blood circulation closed.Paracide, solid acid are sent into pipe-line mixer through metering by circulating pump,
It is sufficiently mixed at this and completes most reaction.Reaction heat is absorbed by the dispersion of substantial amounts of recycle stock, controls temperature rise suitably
Scope, more cooled device removal heat.System major part material is in circulation, and only fraction material extraction, its composition is nitre
Substrates and solid acid.But there is certain defect in this system: the solid acid of extraction can not be fully utilized, and then can be greatly increased
Production cost, and the product quality of extraction is low.
Therefore, a kind of continuous nitre that can reduce production cost and improve product quality is researched and developed
Change reaction unit to be necessary.
Utility model content
The technical problems to be solved in the utility model is to provide one and can reduce and produce into
Basis and the continuous nitrification reaction unit of raising product quality.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of continuous nitrification reaction unit, its innovation
Put and be: described reaction unit includes material storage tank, solid acid storage tank, circulating pump, pipe-line mixer, cooler, quantizer, consolidates
Body acid recovery tank and product storage tank,
Described material storage tank, its upper end is provided with a material inlet, and lower center is provided with a material outlet；
Described solid acid storage tank, its upper end is provided with a solid acid import A, and lower center is provided with a solid acid outlet A；
Described pipe-line mixer, its bottom center is provided with a reaction-ure inlet A, and upper end is provided with a product outlet A；Described
Material outlet is connected with reaction-ure inlet by conveyance conduit A, and described solid acid outlet A is by conveyance conduit B and conveyance conduit A
Connection, and also it is in series with circulating pump on the conveyance conduit A of one end of pipe-line mixer；
Described cooler, its upper end is provided with a product import B, and lower end is provided with a product outlet B；Described product goes out
Mouth A is connected with product import B by conveyance conduit C；
Described quantizer, its upper end is provided with a product import C, and bottom is provided with solid acid outlet B and a products export；Institute
State product outlet B to be connected with product import C by conveyance conduit D；
Described solid acid recycling can, its upper end is provided with a solid acid import B, and lower end is provided with a solid acid outlet C, described solid
Body acid outlet B is connected with solid acid import B by conveyance conduit E, and described solid acid outlet C is by conveyance conduit F and solid acid
Storage tank connects；
Described product storage tank, its upper end is provided with a product import, and described products export is by conveyance conduit G and product import
Connection.
The utility model has the advantage of: this utility model continuous nitrification reaction unit, react system with tradition continuous nitrification
System is compared, and adds quantizer so that the product after cooling is re-fed into product storage tank after being layered by quantizer, makes entrance produce
Impurity in product storage tank will not adulterate acid solution, and then substantially increases the quality of product；Meanwhile, solid acid outlet C is also by defeated
Send pipeline F to connect with solid acid storage tank, and then the solid acid after layering can be made to be recycled, thus reduce production cost.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of this practicality continuous nitrification reaction unit.
Detailed description of the invention
The following examples can make professional and technical personnel that this utility model is more fully understood, but the most therefore will
This utility model is limited among described scope of embodiments.
Embodiment
The present embodiment continuous nitrification reaction unit, as it is shown in figure 1, include material storage tank 1, solid acid storage tank 2, circulating pump 3,
Pipe-line mixer 4, cooler 5, quantizer 6, solid acid recycling can 7 and product storage tank 8,
Material storage tank 1, its upper end is provided with a material inlet, and lower center is provided with a material outlet；
Solid acid storage tank 2, its upper end is provided with a solid acid import A, and lower center is provided with a solid acid outlet A；
Pipe-line mixer 4, its bottom center is provided with a reaction-ure inlet A, and upper end is provided with a product outlet A；Additionally, thing
Material outlet is connected with reaction-ure inlet by conveyance conduit A, and solid acid outlet A is connected with conveyance conduit A by conveyance conduit B,
And also it is in series with circulating pump 3 on the conveyance conduit A of one end of pipe-line mixer；
Cooler 5, its upper end is provided with a product import B, and lower end is provided with a product outlet B；And product outlet A leads to
Cross conveyance conduit C to connect with product import B；
Quantizer 6, its upper end is provided with a product import C, and bottom is provided with solid acid outlet B and a products export；And it is raw
Thing outlet B is become to be connected with product import C by conveyance conduit D；
Solid acid recycling can 7, its upper end is provided with a solid acid import B, and lower end is provided with a solid acid outlet C, and solid acid
Outlet B is connected with solid acid import B by conveyance conduit E, and solid acid outlet C is connected with solid acid storage tank by conveyance conduit F；
Product storage tank 8, its upper end is provided with a product import, and products export is by conveyance conduit G and product inlet communication.
The present embodiment continuous nitrification reaction unit, compared with tradition continuous nitrification response system, adds quantizer so that
Product after cooling is re-fed into product storage tank after being layered by quantizer 6, makes the impurity in entrance product storage tank 8 to adulterate
Acid solution, and then substantially increase the quality of product；Meanwhile, solid acid outlet C is also by conveyance conduit F with solid acid storage tank even
Logical, and then the solid acid after layering can be made to be recycled, thus reduce production cost.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.This
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, and retouches in above-described embodiment and description
That states simply illustrates principle of the present utility model, on the premise of without departing from this utility model spirit and scope, and this utility model
Also have various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This practicality is new
Type claims scope and is defined by appending claims and equivalent thereof.
Claims (1)
1. a continuous nitrification reaction unit, it is characterised in that: described reaction unit includes material storage tank, solid acid storage tank, follows
Ring pump, pipe-line mixer, cooler, quantizer, solid acid recycling can and product storage tank,
Described material storage tank, its upper end is provided with a material inlet, and lower center is provided with a material outlet；
Described solid acid storage tank, its upper end is provided with a solid acid import A, and lower center is provided with a solid acid outlet A；
Described pipe-line mixer, its bottom center is provided with a reaction-ure inlet A, and upper end is provided with a product outlet A；Described material
Outlet is connected with reaction-ure inlet by conveyance conduit A, and described solid acid outlet A is by conveyance conduit B and conveyance conduit A even
Logical, and also it is in series with circulating pump on the conveyance conduit A of one end of pipe-line mixer；
Described cooler, its upper end is provided with a product import B, and lower end is provided with a product outlet B；Described product outlet A
Connected with product import B by conveyance conduit C；
Described quantizer, its upper end is provided with a product import C, and bottom is provided with solid acid outlet B and a products export；Described life
Thing outlet B is become to be connected with product import C by conveyance conduit D；
Described solid acid recycling can, its upper end is provided with a solid acid import B, and lower end is provided with a solid acid outlet C, described solid acid
Outlet B is connected with solid acid import B by conveyance conduit E, and described solid acid outlet C is by conveyance conduit F and solid acid storage tank
Connection；
Described product storage tank, its upper end is provided with a product import, and described products export is by conveyance conduit G with product import even
Logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620612275.5U CN205740828U (en) | 2016-06-21 | 2016-06-21 | A kind of continuous nitrification reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620612275.5U CN205740828U (en) | 2016-06-21 | 2016-06-21 | A kind of continuous nitrification reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205740828U true CN205740828U (en) | 2016-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620612275.5U Active CN205740828U (en) | 2016-06-21 | 2016-06-21 | A kind of continuous nitrification reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205740828U (en) |
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2016
- 2016-06-21 CN CN201620612275.5U patent/CN205740828U/en active Active
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