CN218485936U - Chlorination reaction device for producing trichloroacetic acid - Google Patents
Chlorination reaction device for producing trichloroacetic acid Download PDFInfo
- Publication number
- CN218485936U CN218485936U CN202222157273.XU CN202222157273U CN218485936U CN 218485936 U CN218485936 U CN 218485936U CN 202222157273 U CN202222157273 U CN 202222157273U CN 218485936 U CN218485936 U CN 218485936U
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- Prior art keywords
- reaction
- gas
- trichloroacetic acid
- tubulation
- chlorine
- Prior art date
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- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000011344 liquid material Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims 5
- 238000004880 explosion Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract description 18
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000460 chlorine Substances 0.000 abstract description 11
- 229910052801 chlorine Inorganic materials 0.000 abstract description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005273 aeration Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a chlorination reaction unit of production trichloroacetic acid relates to chemical industry chlorination technical field, and the heat medium plays the effect of heating for the reaction unit at shell side inner loop, and acetic acid evenly gets into the tubulation through device top liquid distributor, and chlorine is passed through aeration equipment by the bottom and is got into the tubulation with little bubble form homodisperse. Acetic acid and chlorine gas are fully contacted in the tube nest for reaction, the density of hydrogen chloride gas generated by the reaction is less than that of the chlorine gas, the hydrogen chloride gas is discharged from the top of the device, the gas material and the liquid material are contacted for reaction in a countercurrent mode, and the gas material is discharged from a discharge outlet at the bottom after the material is completely reacted, so that the reaction can be continuously carried out.
Description
Technical Field
The utility model relates to a chemical industry reaction unit technical field, a chlorination reaction unit of production trichloroacetic acid specifically says so.
Background
Trichloroacetic acid is used as an important pharmaceutical and chemical raw material, has important practical value in pharmaceutical agriculture and chemical synthesis industries, and in industrial production of trichloroacetic acid, excess chlorine is introduced into acetic acid by generally adopting an intermittent reaction, so that methyl in the acetic acid is fully chlorinated, the recovery cost of the excess chlorine is high, and the risk of safety and environmental protection exists.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a chlorination reaction device for producing trichloroacetic acid.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the chlorination reaction device for producing trichloroacetic acid comprises a reaction device shell, a tube array, an upper end enclosure and a lower end enclosure, wherein a tube plate is installed at the top of the tube array, a tube plate is installed at the bottom of the tube array, a feeding pipeline and a tail gas discharge pipeline are installed at the top of the reaction device, the feeding pipeline is connected with a liquid distributor, a demister is installed on the tail gas discharge pipeline, a liquid material outlet pipeline and a gas feeding pipeline are installed at the bottom of the reaction device, a drain valve is installed on the liquid discharge pipeline, and the gas feeding pipeline is connected with a gas aeration head. The shell of the reaction device is respectively provided with a shell pass inlet and a shell pass outlet.
Preferably: the reaction device comprises a shell and a tube array which are vertically arranged.
Compared with the prior art, the invention has the following advantages:
the utility model discloses a chlorination reaction unit of production trichloroacetic acid, heat medium play for the heat preservation effect that heaies up of tube side at the shell side mesocycle, and chlorine passes through the aeration equipment of bottom, makes the even distribution of chlorine in liquid material. Acetic acid passes through the top feed liquid distributor, makes the even tubulation of material, and the device is vertical to be installed, because the density of chlorine is greater than the density of hydrogen chloride gas, and when the device was operated, bottom chlorine got into, and top hydrogen chloride gas was got rid of, can make full use of chlorine.
The utility model discloses a chlorination reaction unit of production trichloroacetic acid, equipment cost is low, easy operation, efficient, the safety risk is low, utilizes gas density different, and autosegregation chlorine and hydrogen chloride gas have improved the utilization ratio of chlorine, have reduced tail chlorine content, and can continuous operation.
Drawings
FIG. 1 is a schematic view of the structure of a chlorination reactor for producing trichloroacetic acid according to the present invention;
Detailed Description
The invention is further described with reference to specific examples.
The utility model provides a chlorination reaction unit of production trichloroacetic acid, including reaction unit shell 1, reaction unit shell internally mounted tubulation 2, the tubulation is fixed by tube sheet 4 from top to bottom respectively, device upper portion upper cover 3, low head 11, acetic acid passes through behind liquid feed pipeline 13 and the liquid distributor 5, with the form evenly distributed of droplet on each tubulation and tube sheet, the material on the tube sheet flows down along the tubulation inner wall, the distribution area of fully increased liquid, install demister 7 on the exhaust emission pipeline 8, prevent that liquid from discharging along with tail gas. The bottom of the device is provided with a liquid material outlet pipeline 10 and a drain valve 9 to prevent gas from being discharged from the bottom, chlorine gas enters the device in a micro-bubble mode through an aeration head 15 through a gas feeding pipeline 14, the contact area of the gas and the liquid is fully increased, the reaction speed is improved, and a heating medium enters the shell pass from a shell pass inlet 12 of the reaction device to heat the outer wall of the shell pass to be discharged from a shell pass outlet 13 and flows back to the heating device.
With the utility model relates to a supporting equipment of continuous chlorination reaction unit of production trichloroacetic acid still includes liquid feed system, gas feed system, heat medium flow control system and tail gas treatment system.
The device is vertically installed, so that the separation of the hydrogen chloride gas and the chlorine gas is facilitated, the contact time of the chlorine gas and liquid is prolonged, the utilization rate of the chlorine gas is improved, and the discharge of the hydrogen chloride gas is facilitated.
The utility model relates to a liquid distributor and gas aeration device are installed respectively about production trichloroacetic acid's continuous chlorination reaction unit is in the inside of shell and tube reactor, liquid feedstock gets into the reaction tubulation by the top of device behind the homodisperse, gaseous feedstock disperses into the tubulation in the little bubble machine by bottom aeration device, gas and liquid carry out abundant contact with the mode against the current, the heat medium heats the temperature that keeps warm to maintain the reaction needs at the shell side to the tubulation, the liquid result is discharged by device bottom pipeline, the gas result is discharged by top tail gas pipeline, the reaction can go on in succession.
Claims (2)
1. The chlorination reaction device for producing trichloroacetic acid is characterized in that: including reaction unit shell (1), tubulation (2), upper cover (3), low head (11), tubulation (2) top installation tube sheet (41) bottom installation tube sheet (42), reaction unit top installation liquid feed line (6) and exhaust emission pipeline (8), liquid distributor (5) are connected in feed line (6), exhaust emission pipeline (8) on install demister (7), bottom installation liquid material outlet pipeline (10) and gas feed line (14), liquid material outlet pipeline (10) installation trap (9), gas feed line (14) connect gaseous explosion head (15), the reaction unit shell is respectively by shell side entry (12) and shell side export (13).
2. The chlorination reaction device for producing trichloroacetic acid according to claim 1, wherein: the reaction device shell (1) and the tube nest (2) are vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222157273.XU CN218485936U (en) | 2022-08-17 | 2022-08-17 | Chlorination reaction device for producing trichloroacetic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222157273.XU CN218485936U (en) | 2022-08-17 | 2022-08-17 | Chlorination reaction device for producing trichloroacetic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218485936U true CN218485936U (en) | 2023-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222157273.XU Active CN218485936U (en) | 2022-08-17 | 2022-08-17 | Chlorination reaction device for producing trichloroacetic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218485936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116196851A (en) * | 2023-03-17 | 2023-06-02 | 湖南长科诚享石化科技有限公司 | Continuous countercurrent contact reaction method and device |
-
2022
- 2022-08-17 CN CN202222157273.XU patent/CN218485936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116196851A (en) * | 2023-03-17 | 2023-06-02 | 湖南长科诚享石化科技有限公司 | Continuous countercurrent contact reaction method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A chlorination reaction device for producing trichloroacetic acid Granted publication date: 20230217 Pledgee: Guangrao County sub branch of Postal Savings Bank of China Ltd. Pledgor: Dongying Keyuan New Material Co.,Ltd. Registration number: Y2024980009480 |