CN213141884U - Chlorination hydrolysis equipment for 3-pentanone production - Google Patents
Chlorination hydrolysis equipment for 3-pentanone production Download PDFInfo
- Publication number
- CN213141884U CN213141884U CN202021880909.8U CN202021880909U CN213141884U CN 213141884 U CN213141884 U CN 213141884U CN 202021880909 U CN202021880909 U CN 202021880909U CN 213141884 U CN213141884 U CN 213141884U
- Authority
- CN
- China
- Prior art keywords
- reaction kettle
- kettle
- chlorination
- chlorination reaction
- transition
- 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.)
- Active
Links
Images
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a chlorination hydrolysis device for 3-pentanone production, which comprises a chlorination reaction kettle, a transition kettle and a hydrolysis reaction kettle which are sequentially communicated; a plurality of groups of annular ultraviolet lamps which are uniformly distributed at intervals are arranged on the inner wall of the chlorination reaction kettle; an initiator hopper is hung and mounted at the top end inside the chlorination reaction kettle; the chlorination reaction kettle is provided with an upward air injection jet assembly; a nozzle of the injection assembly is positioned at the upper part of the chlorination reaction kettle, a flow guide baffle plate is arranged above the nozzle of the injection assembly, and the flow guide baffle plate is positioned below a discharge pipe of the initiator hopper; a filter plate is arranged in the chlorination reaction kettle and close to the bottom; the transition kettle is provided with a baffle plate near the top end, a stirrer is arranged in the transition kettle, and the outer wall of the transition kettle is provided with a heating jacket. The utility model discloses well chlorine is efficient with toluene stoste contact, and adds transition purifier in chlorination and hydrolysis reaction, gets rid of the waste gas that the chlorination produced to indirectly improve product conversion rate and quality.
Description
Technical Field
The utility model belongs to the technical field of the pesticide chemical industry, concretely relates to chlorination hydrolysis equipment for 3-pentanone production.
Background
1- (4' -chlorphenyl) -4, 4-dimethyl-3-pentanone (hereinafter referred to as 3-pentanone) is used as an intermediate of a bactericide tebuconazole, and the preparation method comprises the steps of using toluene as a raw material, chloridizing and hydrolyzing to obtain p-chlorobenzaldehyde, condensing with pinacolone to prepare ketene, and hydrogenating the ketene to prepare the pentanone. In the specific chlorination hydrolysis process, chlorine is filled in firstly for chlorination reaction, and the contact efficiency of the gas and the stock solution is low; and certain waste gas generated in the reaction process is dissolved in the intermediate product liquid, so that the product is easy to be impure and the conversion rate is greatly reduced when the subsequent hydrolysis reaction is directly carried out.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects and the difficult problems in the prior art, the utility model aims at providing a chlorination hydrolysis device for producing 3-pentanone.
The utility model discloses a following technical scheme realizes:
a chlorination hydrolysis device for 3-pentanone production comprises a chlorination reaction kettle, a transition kettle and a hydrolysis reaction kettle which are communicated in sequence; a plurality of groups of annular ultraviolet lamps which are uniformly distributed at intervals are arranged on the inner wall of the chlorination reaction kettle; an initiator hopper is hung and mounted at the top end inside the chlorination reaction kettle, a sealing cover is arranged on the initiator hopper, and a discharging pipe is arranged below the initiator hopper; the chlorination reaction kettle is provided with an upward air injection jet assembly; a nozzle of the injection assembly is positioned at the upper part of the chlorination reaction kettle, a flow guide baffle plate is arranged above the nozzle of the injection assembly, and the flow guide baffle plate is positioned below a discharge pipe of the initiator hopper; a filter plate is arranged in the chlorination reaction kettle and close to the bottom; the transition kettle is provided with a baffle plate near the top end, a stirrer is arranged in the transition kettle, and the outer wall of the transition kettle is provided with a heating jacket.
Furthermore, the flow guide baffle plate adopts an upward convex arc-shaped plate, and the inner wall and the outer wall of the flow guide baffle plate are smooth.
Furthermore, the longitudinal section of the flow guide baffle is crescent, and the middle of the flow guide baffle is thick and two sides of the flow guide baffle are thin.
Furthermore, a plurality of groups of fixing rings which are uniformly distributed at intervals are arranged on the inner wall surface of the transition kettle.
Further, the stirrer adopts a saw-tooth disc type stirring paddle.
Further, the outer diameter of the sawtooth disk of the stirrer is smaller than the inner diameter of the fixing ring.
Compared with the prior art, the utility model discloses beneficial effect includes:
(1) the utility model discloses well chlorine is efficient with toluene stoste contact, and adds transition purifier in chlorination and hydrolysis reaction, gets rid of the waste gas that the chlorination produced to indirectly improve product conversion rate and quality.
(2) The utility model discloses a chlorination reation kettle sets up the water conservancy diversion baffle of crescent, has both played the high-efficient guide effect of chlorine air current, still plays initiating agent dispersion when falling into, avoids initiating agent to concentrate and falls into or block up injection assembly shower nozzle.
(3) The utility model discloses set up sawtooth disc type's agitator and solid fixed ring in the transition cauldron for waste gas flash segregation in the chlorination back result comes out.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Illustration of the drawings: 1-chlorination reaction kettle, 101-initiator hopper, 102-ultraviolet lamp, 103-diversion baffle, 104-injection assembly, 105-filter plate, 2-transition kettle, 201-baffle, 202-stirrer, 203-fixing ring, 204-heating jacket, and 3-hydrolysis reaction kettle.
In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected; can be mechanical connection and electrical connection; may be directly connected, indirectly connected through intervening agents, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood to be specific to those skilled in the art.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the chlorination hydrolysis equipment for 3-pentanone production comprises a chlorination reaction kettle 1, a transition kettle 2 and a hydrolysis reaction kettle 3 which are communicated in sequence.
Wherein, chlorine is introduced into the chlorination reaction kettle 1, and chlorination is carried out under the action of ultraviolet light and an initiator to produce p-chlorotoluene; the transition kettle 2 carries out the transferal treatment on the reaction product of the chlorination reaction kettle 1 to remove residual chlorine, the gas mist of hydrogen chloride and the like; the hydrolysis reaction kettle 3 is a container for producing p-chlorobenzaldehyde by the hydrolysis reaction of p-chlorotoluene.
A plurality of groups of annular ultraviolet lamps 102 which are uniformly distributed at intervals up and down are arranged on the inner wall of the chlorination reaction kettle 1 and are used for providing ultraviolet rays; in the specific implementation, the initiator falls into a reaction area in the chlorination reaction kettle 1 from the initiator hopper 101, and ultraviolet rays and the initiator both play a role in accelerating/initiating the chlorination reaction so as to smoothly carry out the chlorination reaction; the chlorination reaction kettle 1 is provided with an upward gas injection spraying assembly 104, and chlorine gas enters from the bottom of the chlorination reaction kettle 1 and is injected into a reaction zone in the chlorination reaction kettle 1 by the spraying assembly 104; the nozzle of the injection assembly 104 is positioned at the upper part of the chlorination reaction kettle 1, a flow guide baffle plate 103 is arranged above the nozzle of the injection assembly 104, the flow guide baffle plate 103 is positioned below the discharge pipe of the initiator hopper 101, and the flow guide baffle plate 103 not only plays a role in guiding the chlorine gas flow, but also plays a role in dispersing the initiator when the initiator falls in, so that the initiator is prevented from falling into or blocking the nozzle of the injection assembly 104 in a concentrated manner; meanwhile, the impact of the airflow of the injection assembly 104 on the flow guide baffle 103 can prevent the initiator from being retained on the flow guide baffle 103; a filter plate 105 is arranged in the chlorination reaction kettle 1 near the bottom to play a certain role in isolation, interception and filtration. The injection assembly 104 includes a gas pipe, a pump body, a nozzle, etc. (not shown), which are conventionally disposed and will not be described herein. The water conservancy diversion baffle 103 adopts the arc of epirelief, and its interior outer wall is smooth, and the efficiency of water conservancy diversion is higher, and its opening is down promptly, just to spraying subassembly 104 shower nozzle top, and in further preferred structure, the longitudinal section of water conservancy diversion baffle 103 is crescent, and thick both sides are thin in its middle part promptly.
A baffle plate 201 is arranged at the position, close to the top end, of the transition kettle 2 and is used for avoiding a large amount of liquid foam in the transition kettle when gas is discharged; a stirrer 202 is arranged in the transition kettle 2, the stirrer 202 adopts a sawtooth disc type stirring paddle, and the stirrer 202 rotates to accelerate the overflow of gas in liquid during rapid stirring; a plurality of groups of fixing rings 203 which are uniformly distributed at intervals up and down are arranged on the inner wall surface of the transition kettle 2 and are matched with the stirrer 202 to improve the shear stress; the outer wall of the transition kettle 2 is provided with a heating jacket 204 for accelerating the gas in the liquid to overflow and playing a certain role in rectification. The outer diameter of the serrated disk of the agitator 202 is smaller than the inner diameter of the retainer ring 203 to facilitate mounting and dismounting.
In concrete implementation, chlorination reaction kettle 1 still is equipped with other accessories such as heating, measurement, catalysis, stirring, switch with hydrolysis reaction kettle 3, and business turn over pipeline, blast pipe etc. the utility model discloses still include power, the control system etc. of relevant unit and pipeline, the pump body etc. of intercommunication between each cauldron body, foretell structure, constitution, connection etc. adopt conventional structure, the utility model discloses do not explain in detail.
The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A chlorination hydrolysis equipment for 3-pentanone production, characterized by: comprises a chlorination reaction kettle (1), a transition kettle (2) and a hydrolysis reaction kettle (3) which are communicated in sequence; a plurality of groups of annular ultraviolet lamps (102) which are uniformly distributed at intervals up and down are arranged on the inner wall of the chlorination reaction kettle (1); an initiator hopper (101) is hung and mounted at the top end inside the chlorination reaction kettle (1), a sealing cover is arranged on the initiator hopper (101), and a discharging pipe is arranged below the initiator hopper; the chlorination reaction kettle (1) is provided with a jet assembly (104) for jetting air upwards; a nozzle of the injection assembly (104) is positioned at the upper part of the chlorination reaction kettle (1), a flow guide baffle plate (103) is arranged above the nozzle of the injection assembly (104), and the flow guide baffle plate (103) is positioned below a discharge pipe of the initiator hopper (101); a filter plate (105) is arranged in the chlorination reaction kettle (1) close to the bottom; the transition kettle (2) is provided with a baffle plate (201) close to the top end, a stirrer (202) is arranged in the transition kettle (2), and the outer wall of the transition kettle (2) is provided with a heating jacket (204).
2. The chlorinated hydrolysis plant for 3-pentanone production according to claim 1, characterized in that: the flow guide baffle (103) is an arc-shaped plate protruding upwards, and the inner wall and the outer wall of the flow guide baffle are smooth.
3. The chlorinated hydrolysis plant for 3-pentanone production according to claim 1, characterized in that: the longitudinal section of the flow guide baffle (103) is crescent, and the middle of the flow guide baffle is thick and two sides of the flow guide baffle are thin.
4. The chlorinated hydrolysis plant for 3-pentanone production according to claim 1, characterized in that: and a plurality of groups of fixing rings (203) which are uniformly distributed at intervals are arranged on the inner wall surface of the transition kettle (2).
5. The chlorinated hydrolysis plant for 3-pentanone production according to claim 4, characterized in that: the stirrer (202) adopts a sawtooth disc type stirring paddle.
6. The chlorinated hydrolysis plant for 3-pentanone production according to claim 5, characterized in that: the outer diameter of a sawtooth disc of the stirrer (202) is smaller than the inner diameter of the fixing ring (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021880909.8U CN213141884U (en) | 2020-09-01 | 2020-09-01 | Chlorination hydrolysis equipment for 3-pentanone production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021880909.8U CN213141884U (en) | 2020-09-01 | 2020-09-01 | Chlorination hydrolysis equipment for 3-pentanone production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213141884U true CN213141884U (en) | 2021-05-07 |
Family
ID=75742599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021880909.8U Active CN213141884U (en) | 2020-09-01 | 2020-09-01 | Chlorination hydrolysis equipment for 3-pentanone production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213141884U (en) |
-
2020
- 2020-09-01 CN CN202021880909.8U patent/CN213141884U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211946444U (en) | Continuous flow intermittent aeration fluidized bed coupling activated sludge integrated reactor | |
| CN210419971U (en) | Lactic acid fermentation device | |
| CN106745100B (en) | The preparation system and preparation method of battery-level lithium carbonate | |
| CN212092235U (en) | Phenyl silicone rubber production device for quickly separating hydrogen chloride gas | |
| CN213141884U (en) | Chlorination hydrolysis equipment for 3-pentanone production | |
| CN209752898U (en) | Chemical industry reation kettle with pressure release function | |
| CN218465597U (en) | Catalytic oxidation device for treating high-concentration organic wastewater | |
| CN214243811U (en) | Novel high-purity sodium chlorite liquid preparation device | |
| CN105749850B (en) | A kind of special purpose reactor of controlled syntheses parachlorotoluene | |
| US4309285A (en) | Apparatus for removing contaminants from water | |
| CN110229074A (en) | A kind of preparation method of N- benzyloxycarbonyl group -2- amino -1- propyl alcohol | |
| CN211999075U (en) | Water cutting aerator for large aeration tank | |
| CN213738638U (en) | Deodorizing device for sewage treatment tank | |
| CN213652610U (en) | Aluminum alloy degassing unit | |
| CN206566885U (en) | A kind of antioxidant production equipment of catalyst reusable edible | |
| CN207748998U (en) | Aerobic reactor | |
| CN112221459A (en) | Polyether neutralization reactor | |
| CN213434358U (en) | Catalyst intermittent type circulation reation kettle | |
| CN215480020U (en) | Self-circulation double-AO biochemical integrated sewage treatment device and water treatment system | |
| CN107497374B (en) | Cyclohexane oxidation reactor and using method thereof | |
| CN110090602B (en) | Hydrogenation reaction system | |
| CN219879917U (en) | Chlorosilane pre-esterification reaction kettle | |
| CN214346458U (en) | Chemical reaction kettle | |
| CN213966642U (en) | Ammonization transformation reactor | |
| CN218435233U (en) | Anaerobic reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |