CN109663467A - A kind of aminating reaction object optimization device and method of ortho-aminobenzoic acid - Google Patents
A kind of aminating reaction object optimization device and method of ortho-aminobenzoic acid Download PDFInfo
- Publication number
- CN109663467A CN109663467A CN201910139178.7A CN201910139178A CN109663467A CN 109663467 A CN109663467 A CN 109663467A CN 201910139178 A CN201910139178 A CN 201910139178A CN 109663467 A CN109663467 A CN 109663467A
- Authority
- CN
- China
- Prior art keywords
- exhaust pipe
- valve
- pipe
- tail gas
- gas absorption
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 44
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005457 optimization Methods 0.000 title claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 31
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000003139 buffering effect Effects 0.000 claims abstract description 17
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007086 side reaction Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 25
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- -1 reaction kettle Chemical compound 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
Abstract
The aminating reaction object optimization device and method that the present invention provides a kind of ortho-aminobenzoic acid is sequentially installed with valve A, air-introduced machine and valve B wherein being equipped with safety valve on the aerated conduit on the exhaust pipe；The aerated conduit and exhaust pipe one end converges to be connected at the top of reaction kettle through pipeline, the aerated conduit and the exhaust pipe other end, which converges, to be connect through pipeline with buffering pipe air inlet, the buffering pipe gas outlet is welded on exhaust pipe one end, the exhaust pipe other end is welded with bottom valve, and the exhaust pipe extends in tail gas absorption tank through tail gas absorption tank top；The tail gas absorption tank bottom side is connected with Drainage pipe, and draining valve is equipped on Drainage pipe；Advantage are as follows: the present invention avoids remaining ammonia from entering next procedure and raw material generation side reaction and improves utilization rate of raw materials to improve product purity, increases production line unit income.
Description
Technical field
The present invention relates to ortho-aminobenzoic acid fields, optimize more particularly, to a kind of aminating reaction object of ortho-aminobenzoic acid
Device and method.
Background technique
A large amount of ammonias can be generated during aminating reaction on ortho-aminobenzoic acid production line under the prior art, while adjoint
Violent aeration phenomenon still carries a part of residual ammonia secretly in material although reacting kettle inner pressure tends to normal pressure after reaction
Gas, during carrying out plus scale is molten, ammonia is dissolved in liquid, and enters next procedure and raw material with solution
Side reaction occurs, so as to cause waste of raw materials and reactant purity it is not high, while large-tonnage product being caused to receive
Rate is low.
Summary of the invention
It is an object of the invention to solve the deficiencies in the prior art, and provide a kind of aminating reaction of ortho-aminobenzoic acid
Object optimizes device and method.
The new technical solution of the present invention is: a kind of aminating reaction object optimization device of ortho-aminobenzoic acid, including reaction kettle,
Aerated conduit, exhaust pipe, suck-back device, tail gas absorption tank, exhaust pipe and Drainage pipe, the suck-back device packet
Buffering pipe and bottom valve are included, safety valve is installed on the aerated conduit, is sequentially installed with valve on the exhaust pipe
A, air-introduced machine and valve B；The aerated conduit and exhaust pipe one end converges to be connected at the top of reaction kettle through pipeline, described
Aerated conduit and the exhaust pipe other end, which converge, to be connect through pipeline with buffering pipe air inlet, the buffering pipe gas outlet weldering
It connects in exhaust pipe one end, the exhaust pipe other end is welded with bottom valve, and the exhaust pipe extends through tail gas absorption tank top
To tail gas absorption tank；The tail gas absorption tank bottom side is connected with Drainage pipe, and drain is equipped on Drainage pipe
Valve.
The safety valve pressure is 0.4Mp.
The air-introduced machine power is 17Kw.
The bottom valve is check-valves.
Softened water is loaded in the tail gas absorption tank.
The optimization technological process are as follows:
1) aeration absorbs: reaction mass carries out in reaction process in reaction kettle, and the gas of discharge is carbon dioxide, water and entrainment
Part ammonia, reaction kettle are connected to the safety valve on aerated conduit, and when safety valve pressure is increased to 0.4Mp, safety valve is opened,
Gas enters tail gas absorption tank through aerated conduit and buffering pipe；Material in reactor after reaction, the peace on aerated conduit
Full valve is closed；
2) Vent absorber: the air-introduced machine on exhaust pipe is opened, the valve A and valve B on exhaust pipe, reaction kettle are opened simultaneously
Interior remaining ammonia enters tail gas absorption tank through exhaust pipe and buffering pipe under the action of air-introduced machine；
3) absorbing liquid is discharged: when ammonia concn is 20% in tail gas absorption tank, opening the draining valve on Drainage pipe, emptying
Liquid in tail gas absorption tank, and re-inject softened water and carry out next stage reaction.
The invention has the benefit that the present invention avoids, remaining ammonia enters next procedure and side reaction occurs for raw material,
To improve product purity, utilization rate of raw materials is improved, increases production line unit income.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein: 1 being reaction kettle, 2 be aerated conduit, 3 be exhaust pipe, 4 be valve A, 5 be air-introduced machine, 6 be valve B, 7
It is tail gas absorption tank for buffering pipe, 8,9 be exhaust pipe, 10 be Drainage pipe, 11 is bottom valve.
Specific embodiment
The present invention will be further described below with reference to the drawings.
A kind of aminating reaction object of ortho-aminobenzoic acid optimizes device, including reaction kettle 1, aerated conduit 2, exhaust pipe 3,
Suck-back device, tail gas absorption tank 8, exhaust pipe 9 and Drainage pipe 10, the suck-back device include buffering pipe 7 and
Bottom valve 11 is equipped with safety valve on the aerated conduit 2, is sequentially installed with valve A4, air-introduced machine on the exhaust pipe 3
5 and valve B6；The aerated conduit 2 and 3 one end of exhaust pipe, which converges, is connected to 1 top of reaction kettle, the exposure through pipeline
Feed channel 2 and 3 other end of exhaust pipe, which converge, to be connect through pipeline with 7 air inlet of buffering pipe, 7 gas outlet of buffering pipe
It is welded on 9 one end of exhaust pipe, 9 other end of exhaust pipe is welded with bottom valve 11, and the exhaust pipe 9 is through tail gas absorption tank 8
Top extends in tail gas absorption tank 8；8 bottom side of tail gas absorption tank is connected with Drainage pipe 10, and Drainage pipe
Draining valve is installed on 10.
The safety valve pressure is 0.4Mp.
5 power of air-introduced machine is 17Kw.
The bottom valve 11 is check-valves.
Softened water is loaded in the tail gas absorption tank 8.
The optimization technological process are as follows:
1) aeration absorbs: reaction mass carries out in reaction process in reaction kettle 1, and the gas of discharge is carbon dioxide, water and folder
Band part ammonia, reaction kettle 1 are connected to the safety valve on aerated conduit 2, when safety valve pressure is increased to 0.4Mp, safety valve
It opens, gas enters tail gas absorption tank 8 through aerated conduit 2 and buffering pipe 7；In reaction kettle 1 after material reaction, aeration tube
Safety valve on road 2 is closed；
2) Vent absorber: opening the air-introduced machine 5 on exhaust pipe 3, open simultaneously the valve A4 and valve B6 on exhaust pipe 3,
Remaining ammonia enters tail gas absorption tank 8 through exhaust pipe 3 and buffering pipe 7 under the action of air-introduced machine 5 in reaction kettle 1；
3) absorbing liquid is discharged: when ammonia concn is 20% in tail gas absorption tank 8, opening the draining valve on Drainage pipe 10, row
Liquid in empty tail gas absorption tank 8, and re-inject softened water and carry out next stage reaction.
Claims (6)
1. a kind of aminating reaction object of ortho-aminobenzoic acid optimizes device, including reaction kettle (1), aerated conduit (2), exhaust pipe
(3), suck-back device, tail gas absorption tank (8), exhaust pipe (9) and Drainage pipe (10), the suck-back device include slow
Washing pipe road (7) and bottom valve (11), it is characterised in that: safety valve, the exhaust pipe are installed on the aerated conduit (2)
(3) valve A(4 is sequentially installed on), air-introduced machine (5) and valve B(6)；The aerated conduit (2) and exhaust pipe (3) one
End is converged to be connected at the top of reaction kettle (1) through pipeline, and the aerated conduit (2) and exhaust pipe (3) other end converge through pipe
Road is connect with buffering pipe (7) air inlet, and the buffering pipe (7) gas outlet is welded on exhaust pipe (9) one end, offgas duct
Road (9) other end is welded with bottom valve (11), and the exhaust pipe (9) is through extending to tail gas absorption at the top of tail gas absorption tank (8)
In tank (8)；Described tail gas absorption tank (8) bottom side is connected with Drainage pipe (10), and is equipped on Drainage pipe (10)
Draining valve.
2. a kind of aminating reaction object of ortho-aminobenzoic acid according to claim 1 optimizes device, it is characterised in that: described
Safety valve pressure be 0.4Mp.
3. a kind of aminating reaction object of ortho-aminobenzoic acid according to claim 1 optimizes device, it is characterised in that: described
Air-introduced machine (5) power be 17Kw.
4. a kind of aminating reaction object of ortho-aminobenzoic acid according to claim 1 optimizes device, it is characterised in that: described
Bottom valve (11) be check-valves.
5. a kind of aminating reaction object of ortho-aminobenzoic acid according to claim 1 optimizes device, it is characterised in that: described
Tail gas absorption tank (8) in be loaded with softened water.
6. a kind of aminating reaction object optimization device of ortho-aminobenzoic acid described in any one of -5 according to claim 1,
Optimization method includes that aeration absorbs, Vent absorber and absorbing liquid discharge, it is characterised in that:
The optimization technological process are as follows:
1) aeration absorbs: reaction mass carries out in reaction process in the reaction kettle (1), the gas of discharge be carbon dioxide, water and
Entrainment portions ammonia, reaction kettle (1) is connected to the safety valve on aerated conduit (2), when safety valve pressure is increased to 0.4Mp,
Safety valve is opened, and gas enters tail gas absorption tank (8) through aerated conduit (2) and buffering pipe (7)；Reaction kettle (1) interior material is anti-
After answering, the safety valve on aerated conduit (2) is closed；
2) Vent absorber: the air-introduced machine (5) on exhaust pipe (3) is opened, the valve A(4 on exhaust pipe (3) is opened simultaneously) and
Valve B(6), in reaction kettle (1) remaining ammonia under the action of air-introduced machine (5) through exhaust pipe (3) and buffering pipe (7) into
Enter tail gas absorption tank (8)；
3) absorbing liquid is discharged: when tail gas absorption tank (8) interior ammonia concn is 20%, opening the tapping valve on Drainage pipe (10)
Door empties the liquid in tail gas absorption tank (8), and re-injects softened water and carry out next stage reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139178.7A CN109663467A (en) | 2019-02-25 | 2019-02-25 | A kind of aminating reaction object optimization device and method of ortho-aminobenzoic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139178.7A CN109663467A (en) | 2019-02-25 | 2019-02-25 | A kind of aminating reaction object optimization device and method of ortho-aminobenzoic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109663467A true CN109663467A (en) | 2019-04-23 |
Family
ID=66152307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910139178.7A Pending CN109663467A (en) | 2019-02-25 | 2019-02-25 | A kind of aminating reaction object optimization device and method of ortho-aminobenzoic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109663467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113842862A (en) * | 2021-12-02 | 2021-12-28 | 东营市金凤凰化工股份有限公司 | Ammoniation reactant optimization device for producing anthranilic acid |
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|---|---|---|---|---|
| US3183269A (en) * | 1959-09-25 | 1965-05-11 | Montedison Spa | Process for making ethylene diamine by treating ethylene dichloride with ammonia, and separation of vinyl chloride from ammonia |
| JP2001348370A (en) * | 2000-04-04 | 2001-12-18 | Mitsubishi Gas Chem Co Inc | Method for producing nitrile compound |
| CN101121129A (en) * | 2006-08-11 | 2008-02-13 | 中国石油化工股份有限公司 | Method for preparing unsaturated nitrile catalyst using with ammoxidation method |
| CN102585211A (en) * | 2012-03-06 | 2012-07-18 | 江苏苏博特新材料股份有限公司 | Continuous production method for amino end-capped polyether |
| CN205761133U (en) * | 2016-05-19 | 2016-12-07 | 安徽东至广信农化有限公司 | A kind of mechanism catching up with gas for adjacent diphenylamines mother solution deamination |
| CN107868100A (en) * | 2016-09-26 | 2018-04-03 | 青岛九洲千和机械有限公司 | A kind of synthesis compound method of urea propyl-triethoxysilicane methanol solution |
| CN108939823A (en) * | 2018-08-28 | 2018-12-07 | 江门市江海区吉安顺化工有限公司 | A kind of Ammonia recovery processing system |
| CN209612573U (en) * | 2019-02-25 | 2019-11-12 | 临沂华毅医药股份有限公司 | A kind of aminating reaction object optimization device of ortho-aminobenzoic acid |
-
2019
- 2019-02-25 CN CN201910139178.7A patent/CN109663467A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183269A (en) * | 1959-09-25 | 1965-05-11 | Montedison Spa | Process for making ethylene diamine by treating ethylene dichloride with ammonia, and separation of vinyl chloride from ammonia |
| JP2001348370A (en) * | 2000-04-04 | 2001-12-18 | Mitsubishi Gas Chem Co Inc | Method for producing nitrile compound |
| CN101121129A (en) * | 2006-08-11 | 2008-02-13 | 中国石油化工股份有限公司 | Method for preparing unsaturated nitrile catalyst using with ammoxidation method |
| CN102585211A (en) * | 2012-03-06 | 2012-07-18 | 江苏苏博特新材料股份有限公司 | Continuous production method for amino end-capped polyether |
| CN205761133U (en) * | 2016-05-19 | 2016-12-07 | 安徽东至广信农化有限公司 | A kind of mechanism catching up with gas for adjacent diphenylamines mother solution deamination |
| CN107868100A (en) * | 2016-09-26 | 2018-04-03 | 青岛九洲千和机械有限公司 | A kind of synthesis compound method of urea propyl-triethoxysilicane methanol solution |
| CN108939823A (en) * | 2018-08-28 | 2018-12-07 | 江门市江海区吉安顺化工有限公司 | A kind of Ammonia recovery processing system |
| CN209612573U (en) * | 2019-02-25 | 2019-11-12 | 临沂华毅医药股份有限公司 | A kind of aminating reaction object optimization device of ortho-aminobenzoic acid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113842862A (en) * | 2021-12-02 | 2021-12-28 | 东营市金凤凰化工股份有限公司 | Ammoniation reactant optimization device for producing anthranilic acid |
| CN113842862B (en) * | 2021-12-02 | 2022-03-08 | 东营市金凤凰化工股份有限公司 | Ammoniation reactant optimization device for producing anthranilic acid |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190423 |
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| WD01 | Invention patent application deemed withdrawn after publication |