CN209696657U - A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device - Google Patents
A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device Download PDFInfo
- Publication number
- CN209696657U CN209696657U CN201920236012.2U CN201920236012U CN209696657U CN 209696657 U CN209696657 U CN 209696657U CN 201920236012 U CN201920236012 U CN 201920236012U CN 209696657 U CN209696657 U CN 209696657U
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- CN
- China
- Prior art keywords
- pipeline
- tower
- ortho
- storage tank
- aminobenzoic acid
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- 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.)
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Abstract
The utility model provides a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device, wherein the storage tank bottom side is connected with feed cycle pump through pipeline, feed cycle pump extends in packed tower through pipeline, and the storing pot bottom other side is connect with discharge pipe A；Filter screen is installed in storage tank, packed tower is communicated at the top of storage tank, filler tower bottom is connect through blowing line with air blower, filler plate is installed in packed tower, liquid alkaline pipeline is equipped with above filler plate, is connect through transfer pipeline with buffering pipe air inlet at the top of packed tower, buffering pipe gas outlet is welded with bottom valve through pipeline, buffering pipe and bottom valve are installed in absorption tower, and absorb the bottom of the tower side is connect with the one end discharge pipe B, and the discharge pipe B other end is connected with accessory substance storage tank；Advantage are as follows: the utility model separates intermediate (ammonia, a hydration ammonia and ammonium ion) with amide stripping, improves the efficiency of subsequent processing, reduces by-product, increases product yield.
Description
Technical field
The utility model relates to ortho-aminobenzoic acid aminating reaction fields, more particularly, to a kind of ortho-aminobenzoic acid ammonification
Reaction intermediate stripping device.
Background technique
In existing ortho-aminobenzoic acid production line, aminating reaction is phthalic anhydride and urea generates amide and with by-product ammonia
Gas.After the amide alkali soluble of generation, since the ammonia carried secretly in amide is highly soluble in water, ammonia can be with a hydration ammonia or ammonium root
The form of ion exists.And the sodium hypochlorite that subsequent oxidation reaction is added can by amide ammonium ion or ammonia reaction disappear
Consumption, to cause unstable product quality, influences product product control so that sodium hypochlorite supply is unstable in main reaction.
Summary of the invention
The purpose of this utility model is that solve the deficiencies in the prior art, and it is anti-to provide a kind of ortho-aminobenzoic acid ammonification
Answer intermediate stripping device.
The new technical solution of the utility model is: a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device, including
Feed cycle pump, stripping tower, liquid alkaline device, air blower, transfer pipeline, absorption tower, suck-back device and outlet valve, described blows
De- tower includes storage tank and packed tower, and the liquid alkaline device includes liquid alkaline pump and liquid alkaline pipeline, the suck-back device packet
Buffering pipe and bottom valve are included, the storage tank bottom side is connected with feed cycle through pipeline and pumps, and feed cycle is pumped through pipeline
It extends in packed tower, the storing pot bottom other side is connect with discharge pipe A；Filtering is installed in the storage tank
Net, the storage tank top are communicated with packed tower, and filler tower bottom is connect through blowing line with air blower, the packed tower
Filler plate is inside installed, filler bead is filled in filler plate, liquid alkaline pipeline is equipped with above the filler plate, liquid alkaline pipeline connects
It is connected to liquid alkaline pump, is connect through transfer pipeline with buffering pipe air inlet at the top of the packed tower, buffering pipe gas outlet is through pipe
Road is welded with bottom valve, and the buffering pipe and bottom valve are installed in absorption tower, the absorb the bottom of the tower side and discharge nozzle
The connection of road one end B, the discharge pipe B other end are connected with accessory substance storage tank.
The filler plate is 4 pieces.
The filter screen is filter cloth.
The filter screen is 200 mesh.
Outlet valve A is installed on the discharge pipe A.
Outlet valve B is installed on the discharge pipe B.
Transfer valve is installed on the transfer pipeline.
Sulfuric acid or hydrochloric acid or water are loaded in the absorption tower.
The bottom valve is check-valves.
The utility model has the following beneficial effects: the utility model by intermediate (ammonia, one hydration ammonia and ammonium ion) with
The separation of amide stripping, improves the efficiency of subsequent processing, reduces by-product, increases product yield.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1 being feed cycle pump, 2 be filter screen, 3 be stripping tower, 301 be storage tank, 302 be packed tower, 4 to fill out
Flitch, 5 be liquid alkaline pipeline, 6 be transfer pipeline, 7 be absorption tower, 8 be buffering pipe, 9 be outlet valve B, 10 be discharge pipe B,
11 it is bottom valve, 12 be air blower, 13 be discharge pipe A, 14 is outlet valve A.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device, including feed cycle pump 1, stripping tower 3, liquid alkaline dress
Set, air blower 12, transfer pipeline 6, absorption tower 7, suck-back device and outlet valve, the stripping tower 3 include storage tank 301 and
Packed tower 302, the liquid alkaline device include liquid alkaline pump and liquid alkaline pipeline 5, the suck-back device include buffering pipe 8 and
Bottom valve 11,301 bottom side of storage tank are connected with feed cycle pump 1 through pipeline, and feed cycle pump 1 is extended to through pipeline
In packed tower 302, the 301 bottom other side of storage tank is connect with discharge pipe A13；Installation in the storage tank 301
There is filter screen 2, packed tower 302 is communicated at the top of the storage tank 301,302 bottom of packed tower is through blowing line and air blower
12 connections are equipped with filler plate 4 in the packed tower 302, are filled with filler bead in filler plate 4, on the filler plate 4
Side is equipped with liquid alkaline pipeline 5, and liquid alkaline pipeline 5 is connected with liquid alkaline pump, and 302 top of packed tower is through transfer pipeline 6 and separator tube
The connection of 8 air inlet of road, 8 gas outlet of buffering pipe are welded with bottom valve 11 through pipeline, and the buffering pipe 8 and bottom valve 11 are installed on
In absorption tower 7,7 bottom side of absorption tower is connect with the one end discharge pipe B10, and the discharge pipe B10 other end is connected with
Accessory substance storage tank.
The filler plate 4 is 4 pieces.
The filter screen 2 is filter cloth.
The filter screen 2 is 200 mesh.
Outlet valve A14 is installed on the discharge pipe A13.
Outlet valve B9 is installed on the discharge pipe B10.
Transfer valve is installed on the transfer pipeline 6.
Sulfuric acid or hydrochloric acid or water are loaded in the absorption tower 7.
The bottom valve 11 is check-valves.
The intermediate stripping process process are as follows:
1) intermediate stripping step: the amide after alkali soluble enters on packed tower 302 under the action of feed cycle pump 1
Portion, amide recycle from top to bottom in packed tower 302, mix with the liquid alkaline from liquid alkaline pipeline 5, spray through liquid alkaline and adjust ammonia
Compound PH is roused to alkalinity so that the ammonium ion carried secretly in amide be made to be converted into molecular state from ionic state under alkaline condition
Blower 12 is arranged in 302 bottom of packed tower, and air blower 12 contacts air with amide from bottom to top, by intermediate from amide
Middle stripping separation；Amide after stripping falls into 301 bottom of storage tank through the removal of impurities of filter screen 2, and through under discharge pipe A13 entrance
One process；
2) intermediate absorption step: the intermediate that stripping is isolated from amide enters absorption tower 7 through transfer pipeline 6,
Sulfuric acid or hydrochloric acid are loaded in absorption tower 7, intermediate and sulfuric acid or hydrochloric acid generate ammonium sulfate or ammonium chloride, and through discharge pipe
B10 enters accessory substance storage tank.
Claims (9)
1. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device, including feed cycle pump (1), stripping tower (3), liquid alkaline
Device, air blower (12), transfer pipeline (6), absorption tower (7), suck-back device and outlet valve, the stripping tower (3) include
Storage tank (301) and packed tower (302), the liquid alkaline device include liquid alkaline pump and liquid alkaline pipeline (5), the anti-suck dress
It sets including buffering pipe (8) and bottom valve (11), it is characterised in that: described storage tank (301) bottom side is connected with through pipeline
Feed cycle pumps (1), and feed cycle pumps (1) and extends in packed tower (302) through pipeline, and described storage tank (301) bottom is another
Side is connect with discharge pipe A(13)；It is equipped with filter screen (2) in the storage tank (301), the storage tank (301)
Top is communicated with packed tower (302), and packed tower (302) bottom is connect through blowing line with air blower (12), the packed tower
(302) it is equipped with filler plate (4) in, filler bead is filled in filler plate (4), is equipped with liquid alkaline above the filler plate (4)
Pipeline (5), liquid alkaline pipeline (5) are connected with liquid alkaline pump, and the packed tower (302) top is through transfer pipeline (6) and buffering pipe
(8) air inlet connects, and buffering pipe (8) gas outlet is welded with bottom valve (11) through pipeline, the buffering pipe (8) and bottom valve
(11) it is installed in absorption tower (7), absorption tower (7) bottom side is connect with the one end discharge pipe B(10), discharge pipe
B(10) other end is connected with accessory substance storage tank.
2. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
The filler plate (4) stated is 4 pieces.
3. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
The filter screen (2) stated is filter cloth.
4. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1 or 3, feature exist
In: the filter screen (2) is 200 mesh.
5. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
The discharge pipe A(13 stated) on outlet valve A(14 is installed).
6. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
The discharge pipe B(10 stated) on outlet valve B(9 is installed).
7. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
Transfer valve is installed on the transfer pipeline (6) stated.
8. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
Sulfuric acid or hydrochloric acid or water are loaded in the absorption tower (7) stated.
9. a kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device according to claim 1, it is characterised in that: institute
The bottom valve (11) stated is check-valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920236012.2U CN209696657U (en) | 2019-02-25 | 2019-02-25 | A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920236012.2U CN209696657U (en) | 2019-02-25 | 2019-02-25 | A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209696657U true CN209696657U (en) | 2019-11-29 |
Family
ID=68642376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920236012.2U Expired - Fee Related CN209696657U (en) | 2019-02-25 | 2019-02-25 | A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209696657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701379A (en) * | 2019-02-25 | 2019-05-03 | 临沂华毅医药股份有限公司 | A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device and method |
-
2019
- 2019-02-25 CN CN201920236012.2U patent/CN209696657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701379A (en) * | 2019-02-25 | 2019-05-03 | 临沂华毅医药股份有限公司 | A kind of ortho-aminobenzoic acid aminating reaction intermediate stripping device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20210225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |