CN211255773U - Reaction device for producing 2,3,5, 6-tetrachloropyridine - Google Patents

Reaction device for producing 2,3,5, 6-tetrachloropyridine Download PDF

Info

Publication number
CN211255773U
CN211255773U CN201922112612.0U CN201922112612U CN211255773U CN 211255773 U CN211255773 U CN 211255773U CN 201922112612 U CN201922112612 U CN 201922112612U CN 211255773 U CN211255773 U CN 211255773U
Authority
CN
China
Prior art keywords
pipe
condenser
reactor
reaction
reation kettle
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
Application number
CN201922112612.0U
Other languages
Chinese (zh)
Inventor
潘银祥
贾如程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qian Cheng Industry & Trade Co ltd Shandong
Original Assignee
Qian Cheng Industry & Trade Co ltd Shandong
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qian Cheng Industry & Trade Co ltd Shandong filed Critical Qian Cheng Industry & Trade Co ltd Shandong
Priority to CN201922112612.0U priority Critical patent/CN211255773U/en
Application granted granted Critical
Publication of CN211255773U publication Critical patent/CN211255773U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a production 2,3,5, 6-tetrachloropyridine's reaction unit, it includes reation kettle, the last pyridine that is equipped with of reation kettle lets in the pipe and the chlorine lets in the pipe, still be equipped with the agitating unit by power unit drive in the reation kettle, reation kettle is connected with the condenser through the gaseous phase discharge pipe, be equipped with the increase reactor that is located between reation kettle and the condenser on the gaseous phase discharge pipe, increase reactor includes the reactor body, the glass sleeve has been inserted in the reactor body, the inner chamber separation of glass sleeve with the reactor body is reaction cavity and heat source cavity, the upper surface of reactor body is connected with binding post, be equipped with in the reactor body and be located the heat source cavity and parallelly connected multiunit light source, the top that the reactor body was worn out to the tip that the multiunit light source passes through the parallelly connected and cable. The utility model has the advantages of reducing the use amount of chlorine, reducing the production cost, greatly shortening the reaction time and improving the yield of 2,3,5, 6-tetrachloropyridine.

Description

Reaction device for producing 2,3,5, 6-tetrachloropyridine
Technical Field
The utility model relates to a reaction unit for producing 2,3,5, 6-tetrachloropyridine.
Background
2,3,5, 6-tetrachloropyridine is an important component for producing novel pesticides, medical products and the like, in the existing production process, 2, 6-dichloropyridine and chlorine are mostly adopted to react to generate 2,3,5, 6-tetrachloropyridine, the method comprises the steps of introducing the 2, 6-dichloropyridine into a reaction kettle, introducing the chlorine into the reaction kettle, reacting the chlorine at a proper temperature, and leading out the chlorine and gasified 2, 6-dichloropyridine in order to ensure proper pressure in the reaction kettle, and the chlorine and gasified 2, 6-dichloropyridine are led out, condensed and returned to the reaction kettle.
According to the reaction process, the existing reaction device for producing 2,3,5, 6-tetrachloropyridine comprises a reaction kettle and a condenser, the height of the condenser is higher than that of the reaction kettle, a stirring device is arranged in the reaction kettle, and chlorine gas, gasified raw materials and part of 2, 6-dichloropyridine are required to be introduced into the condenser at any time, so that part of the chlorine gas is discharged for participating in the reaction, the consumption of the chlorine gas is too large, the chlorine gas discharged from the condenser is more, troubles are brought for subsequent work such as chlorine gas recovery and the like, the production cost is increased, the chlorine gas is insufficiently contacted with the materials, the reaction time is longer, the yield of the 2,3,5, 6-tetrachloropyridine is greatly reduced, and the labor efficiency is greatly low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a reaction unit of production 2,3,5, 6-tetrachloropyridine, the device can the significantly reduced use amount of chlorine to reduction in production cost greatly shortens reaction time, improves labor efficiency and the yield of 2,3,5, 6-tetrachloropyridine.
For solving above-mentioned technical problem, the reaction unit of production 2,3,5, 6-tetrachloropyridine that provides includes reation kettle, the last pyridine that is equipped with of reation kettle lets in pipe and chlorine and lets in the pipe, and reation kettle's bottom is equipped with the discharge gate, still is equipped with the agitating unit by power unit drive in the reation kettle, and reation kettle's top is connected with the condenser through the gaseous phase discharge pipe, and its structural feature is: the reactor comprises a gas phase discharge pipe, a gas phase discharge pipe and a condenser, wherein the gas phase discharge pipe is provided with a synergistic reactor between the reaction kettle and the condenser, the synergistic reactor comprises a reactor body, a glass sleeve is inserted in the reactor body, the inner cavity of the reactor body is divided into an inner reaction cavity and an outer heat source cavity by the glass sleeve, the cavity of the gas phase discharge pipe is communicated with the reaction cavity, the upper surface of the reactor body is connected with a wiring terminal, a plurality of groups of light sources which are positioned in the heat source cavity and connected in parallel are arranged in the reactor body, the plurality of groups of light sources are connected in parallel through cables, and the end parts.
The condenser comprises a condenser body, a condensate inlet pipe and a condensate outlet pipe are arranged on the condenser body, an inner coil pipe communicated with the condenser inlet pipe and the condensate outlet pipe is arranged in an inner cavity of the condenser body, the end part of the gas phase discharge pipe is communicated with the inner cavity of the condenser body, and a gas discharge pipe is arranged at the top of the condenser body.
The condensate lets in the pipe setting in the lower part of condenser body, and the condensate outflow pipe sets up on the upper portion of condenser body, and the inner coil pipe is including setting up in condenser body inner chamber and being the pipe body that upwards extends of form of buckling, and the lower extreme and the condensate of pipe let in union coupling, upper end and condensate outflow union coupling.
The multiple groups of light sources are arranged around the reaction cavity, and each group of light sources comprises multiple light source bodies which are connected on the cable in parallel from bottom to top.
The stirring device comprises a stirring shaft which is rotatably connected to the reaction kettle and driven by a power mechanism, the stirring shaft extends into the section of the recovery kettle body and is connected with stirring blades, the stirring blades comprise large blades with large length and small blades with small length, and the large blades and the small blades are arranged in a vertically staggered manner.
After the structure is adopted, 2, 6-dichloropyridine and a catalyst are introduced from a pyridine introduction pipe, then chlorine is introduced from a chlorine introduction pipe, so that the 2, 6-dichloropyridine reacts with the chlorine, during the reaction, the partially gasified 2, 6-dichloropyridine and the chlorine firstly enter a synergistic reactor through a gas phase discharge pipe, the partially gasified 2, 6-dichloropyridine reacts with the chlorine under the irradiation of a light source, so that the 2,3,5, 6-tetrachloropyridine is generated, the generated 2,3,5, 6-tetrachloropyridine and the incompletely reacted 2, 6-dichloropyridine flow back to a reaction kettle under the cooling action of a condenser, and because the partially gasified 2, 6-dichloropyridine and the chlorine are upwards discharged under the promoting action of the synergistic reactor, the reaction is continued, so that the amount of chlorine discharged from the condenser is greatly reduced, the usage amount of chlorine is greatly reduced, the subsequent tail gas treatment work is reduced, the production cost is reduced, the reaction time is shortened, and the yield of the 2,3,5, 6-tetrachloropyridine is greatly improved.
To sum up, the utility model has the advantages of reduce the use amount of chlorine, reduction in production cost, greatly shorten reaction time, improve labor efficiency and the yield of 2,3,5, 6-tetrachloropyridine.
Drawings
The invention will be further described with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the booster reactor in the embodiment of FIG. 1;
fig. 3 is a schematic structural diagram of the condenser in the embodiment of fig. 1.
Detailed Description
Referring to the attached drawing 1, the utility model provides a production 2,3,5, 6-tetrachloropyridine's reaction unit's preferred embodiment, it includes reation kettle 1, reation kettle 1 is equipped with pyridine and lets in pipe 2 and chlorine and let in pipe 3, and in order to guarantee the stability that chlorine lets in, in this embodiment, chlorine lets in pipe 3 including letting in the body and the adhesion polytetrafluoroethylene coating in letting in the body internal surface, can effectively avoid the body leakage problem that causes because of the corruption of chlorine, further improves the security of production. The bottom of reaction kettle 1 is equipped with the discharge gate, still is equipped with the agitating unit by power unit drive in the reaction kettle, agitating unit is including rotating the (mixing) shaft 8 that connects on reaction kettle and by power unit drive, power unit is the motor power who connects on reaction kettle, be connected with stirring paddle 9 on the section that the (mixing) shaft stretches into the recovery cauldron body, stirring paddle 9 includes the great big paddle of length and the less little paddle of length, big, little paddle sets up crisscross from top to bottom, through above-mentioned structure, make chlorine and 2, 6-dichloropyridine fully contact, in order to promote the reaction, shorten reaction time. The top of the reaction kettle 1 is connected with a condenser 5 through a gas phase discharge pipe 4, and a synergy reactor 6 positioned between the reaction kettle 1 and the condenser is arranged on the gas phase discharge pipe 4, namely the condenser 5 is positioned at the highest position, and the synergy reactor 6 is positioned below the condenser and above the reaction kettle. An outer sleeve 11 is arranged on the outer wall of the reaction kettle 1, the upper end and the lower end of the outer sleeve 11 are respectively connected with a medium flow pipe 12, and the reaction kettle 1 is connected with a pressure gauge and a thermometer. The medium with proper temperature can be added into the outer sleeve through the medium circulation pipe according to the temperature of the inner cavity of the reaction kettle detected by the ambient temperature and the thermometer, and the medium can be cooling water or hot steam, so that the temperature in the reaction kettle is ensured, the full reaction is ensured, and the yield of products is further improved.
Referring to fig. 1 and 2, the synergistic reactor 6 includes a reactor body 61, the reactor body may be square or round, a glass sleeve 62 is inserted into the reactor body 61, the glass sleeve 62 divides an inner cavity of the reactor body into an inner reaction cavity 63 and an outer heat source cavity 64, a lumen of the gas phase discharge pipe 4 is communicated with the reaction cavity 63, a connection terminal 7 is connected to an upper surface of the reactor body 61, a plurality of sets of light sources 10 located in the heat source cavity 64 and connected in parallel are installed in the reactor body 61, the plurality of sets of light sources are connected in parallel through cables, ends of the cables penetrate out of a top of the reactor body and are connected with the connection terminal 7, in this embodiment, the plurality of sets of light sources 10 are arranged around the reaction cavity, each set of light sources includes a plurality of light source bodies connected in parallel on the cables from bottom to top, the light source bodies may adopt, the plurality of ultraviolet lamps are connected in parallel on the cable, the parallel connection structure is the prior art, and when one light source is broken, the normal production is not affected basically.
Referring to fig. 1 and 3, the condenser 5 includes a condenser body 51, a condensate inlet pipe 52 and a condensate outlet pipe 53 are installed on the condenser body 51, an inner coil 54 communicating the condenser inlet pipe and the condensate outlet pipe 53 is installed in an inner cavity of the condenser body 51, an end of the gas phase outlet pipe 4 is communicated with the inner cavity of the condenser body, and a gas outlet pipe 55 is installed at the top of the condenser body 51. The condensate inlet pipe 52 is arranged at the lower part of the condenser body, the condensate outlet pipe is arranged at the upper part of the condenser body, the inner coil pipe 54 comprises a pipe body which is arranged in the inner cavity of the condenser body and extends upwards in a bent shape, and the lower end of the pipe body is connected with the condensate inlet pipe and the upper end of the pipe body is connected with the condensate outlet pipe. By adopting the condenser with the structure, the time of chlorine and gasified 2, 6-dichloropyridine in the condenser body can be prolonged to the greatest extent, and the condensation effect is improved.
The utility model discloses can also have other embodiments, other technical scheme that form in the record of claim no longer carry out the repeated description one by one, the utility model discloses do not receive the restriction of above-mentioned embodiment, based on the equivalent change and the part replacement of above-mentioned embodiment are all in the utility model discloses a protection within range.

Claims (5)

1. The utility model provides a reaction unit of production 2,3,5, 6-tetrachloropyridine, includes reation kettle (1), be equipped with on reation kettle (1) that pyridine lets in pipe (2) and chlorine and let in pipe (3), the bottom of reation kettle (1) is equipped with the discharge gate, still is equipped with the agitating unit by power unit drive in the reation kettle, and the top of reation kettle (1) is connected with condenser (5), characterized by through gaseous phase discharge pipe (4): the utility model discloses a reactor, including gaseous phase discharge pipe (4), gaseous phase discharge pipe (4) are equipped with and are located synergistic reactor (6) between reation kettle (1) and the condenser, and synergistic reactor (6) are including reactor body (61), and the plug-in glass sleeve (62) of reactor body (61), and glass sleeve (62) are separated the inner chamber of reactor body for inside reaction cavity (63) and outside heat source cavity (64), the lumen and reaction cavity (63) intercommunication of gaseous phase discharge pipe (4), the upper surface connection of reactor body (61) has binding post (7), be equipped with in reactor body (61) and be located heat source cavity (64) and parallelly connected multiunit light source (10), multiunit light source passes through the parallelly connected and top and binding post (7) that the tip of cable worn out the reactor body of cable are connected.
2. The reaction apparatus for producing 2,3,5, 6-tetrachloropyridine according to claim 1, wherein: condenser (5) are including condenser body (51), are equipped with condensate on condenser body (51) and let in pipe (52) and condensate outlet pipe (53), condenser body (51) inner chamber is equipped with interior coil pipe (54) that the intercommunication condenser lets in pipe and condensate outlet pipe (53), the tip and the condenser body inner chamber intercommunication of gaseous phase discharge pipe (4), gas discharge pipe (55) are equipped with at the top of condenser body (51).
3. The reaction apparatus for producing 2,3,5, 6-tetrachloropyridine according to claim 2, wherein: the condenser is characterized in that the condensate feeding pipe (52) is arranged on the lower portion of the condenser body, the condensate outflow pipe is arranged on the upper portion of the condenser body, the inner coil pipe (54) comprises a pipe body which is arranged in an inner cavity of the condenser body and extends upwards in a bent mode, and the lower end of the pipe body is connected with the condensate feeding pipe and the upper end of the pipe body is connected with the condensate outflow pipe.
4. The reaction apparatus for producing 2,3,5, 6-tetrachloropyridine according to claim 1, wherein: the multiple groups of light sources (10) are arranged around the reaction cavity, and each group of light sources comprises multiple light source bodies which are connected on the cable in parallel from bottom to top.
5. The reaction apparatus for producing 2,3,5, 6-tetrachloropyridine according to any one of claims 1 to 4, wherein: agitating unit is including rotating (mixing) shaft (8) of connecting on reation kettle and by power unit drive, and the (mixing) shaft stretches into to be connected with stirring paddle (9) on retrieving this internal section of cauldron, and stirring paddle (9) are including the great big paddle of length and the little oar piece of length, and big, little oar piece are crisscross the setting from top to bottom.
CN201922112612.0U 2019-12-01 2019-12-01 Reaction device for producing 2,3,5, 6-tetrachloropyridine Active CN211255773U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922112612.0U CN211255773U (en) 2019-12-01 2019-12-01 Reaction device for producing 2,3,5, 6-tetrachloropyridine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922112612.0U CN211255773U (en) 2019-12-01 2019-12-01 Reaction device for producing 2,3,5, 6-tetrachloropyridine

Publications (1)

Publication Number Publication Date
CN211255773U true CN211255773U (en) 2020-08-14

Family

ID=71961277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922112612.0U Active CN211255773U (en) 2019-12-01 2019-12-01 Reaction device for producing 2,3,5, 6-tetrachloropyridine

Country Status (1)

Country Link
CN (1) CN211255773U (en)

Similar Documents

Publication Publication Date Title
CN103816945B (en) Continuous catalyst production process and equipment
CN108097189A (en) A kind of chemical industry energy conservation and environmental protection reaction kettle
CN110028040A (en) A kind of production technology and its device of aluminium-sodium hydroxide reaction hydrogen manufacturing
CN211255773U (en) Reaction device for producing 2,3,5, 6-tetrachloropyridine
CN108654549A (en) A kind of venturi injection mixing reactor, a kind of oleamide are continuously synthesizing to device and its application method
CN105885942A (en) Method for producing chlorinated paraffin-70 by catalyzing and direct gas agitating cold and hot type
CN207672129U (en) A kind of wiring board vacuum etch device
CN208049927U (en) A kind of novel reaction kettle system
CN105838439A (en) Method for producing chlorinated paraffin-70 through catalytic pressurizing photo-chlorination agitating gas heating and cooling method
CN205599140U (en) Chemical industry stirring is with cooling retort
CN207680610U (en) Phytosterol synthesis reactor
CN206103912U (en) Reaction unit of glyoxal oxidation glyoxalic acid
CN207108892U (en) A kind of semicontinuous nylon66 fiber polyplant
CN206950720U (en) Produce strong cross-linking agent system
CN206325574U (en) The process units of poly-aluminium product
CN206519136U (en) Chloroethanes vapor phase method synthesizer
CN104445476B (en) Ethyl alcohol biogas slurry deamination technology and equipment
CN2455720Y (en) Chlorinated paraffin producing apparatus with external circulation heat exchanger
CN211988632U (en) Energy-concerving and environment-protective type tert-butyl reation kettle for catechol production
CN203346310U (en) Pipeline-type reaction device for preparing trichloroisocyanuric acid
CN210474003U (en) System for be used for acyl chloride to remove phosgene
CN212975145U (en) Reation kettle is used in polyurethane waterproof coating production
CN209475618U (en) A kind of vexed tank rectifying still agitating device
CN106984061A (en) A kind of 1,5 pentanediamine continuous countercurrent extraction Processes and apparatus
CN208427052U (en) A kind of sulphonation kettle of quick evolution HCL gas

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant