CN213032457U - Equipment for synthesizing o-chlorotrifluorobenzyl through serial sleeved tail gas - Google Patents
Equipment for synthesizing o-chlorotrifluorobenzyl through serial sleeved tail gas Download PDFInfo
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- CN213032457U CN213032457U CN202021116096.5U CN202021116096U CN213032457U CN 213032457 U CN213032457 U CN 213032457U CN 202021116096 U CN202021116096 U CN 202021116096U CN 213032457 U CN213032457 U CN 213032457U
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Abstract
The utility model provides a tail gas series-connection sleeving synthesis device of ortho-chloro trichlorobenzyl, which comprises a chlorine generating device; a tail gas treatment device; the main treatment device comprises a main reaction furnace, a main liquid-phase pipe, a main gas-phase pipe, a main condensation separation mechanism and a main chlorine introducing pipe, wherein one end of the main chlorine introducing pipe is connected and communicated with the gas outlet end of the chlorine gas generating device; vice processing apparatus, it includes vice reacting furnace, vice liquid phase pipe, vice gaseous phase pipe, vice condensation separating mechanism, vice logical chlorine pipe, the utility model discloses be provided with vice processing apparatus, vice processing apparatus delays the back to start relatively main processing apparatus to let in vice processing apparatus with main processing apparatus's tail gas in, utilize the high characteristics of chlorine utilization ratio in the reaction earlier stage, participate in the reaction in the vice processing apparatus with excessive chlorine in the main processing apparatus, both effectively utilized chlorine to practice thrift the cost, reduce the processing degree of difficulty of tail gas again, practice thrift the liquid alkali of absorbing chlorine, reduced the tail gas treatment cost.
Description
Technical Field
The utility model relates to an adjacent chlorine trichlorobenzyl makes technical field, concretely relates to synthetic adjacent chlorine trichlorobenzyl equipment is opened to tail gas series connection cover.
Background
In the prior art, o-chlorotoluene and chlorine are generally used for synthesizing o-chlorotrifluorobenzyl chloride. In the presence of a catalyst, synthesizing the o-chlorotrifluorobenzyl chloride in a gas-liquid two-phase manner. The reaction process is stable, but the reaction speed is gradually reduced along with the deepening of the chlorination, and the chlorine in the tail stage of the reaction can not be fully reacted, so that a large amount of excessive chlorine is generated, the tail gas system is difficult to treat, and high treatment cost is brought.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tail gas series connection overlaps opens synthetic ortho-chloro trichlorobenzyl equipment to solve the chlorine of reaction tail phase and can not fully react, the excessive problem of chlorine in the tail gas.
The utility model provides a scheme as follows of above-mentioned technical problem:
the utility model provides a tail gas series connection cover is opened and is synthesized ortho chlorine trichlorobenzyl equipment, includes:
a chlorine generating device;
a tail gas treatment device;
the main treatment device comprises a main reaction furnace, a main liquid phase pipe, a main gas phase pipe, a main condensation separation mechanism and a main chlorine pipe, wherein one end of the main chlorine pipe is communicated with the gas outlet end of the chlorine gas generation device, the other end of the main chlorine pipe is communicated with the gas inlet end of the main reaction furnace, one end of the main gas phase pipe is connected with the gas outlet end of the main reaction furnace, the other end of the main gas phase pipe is connected with the gas inlet end of the main condensation separation mechanism, one end of the main liquid phase pipe is connected with the liquid inlet end of the main reaction furnace, the other end of the main liquid phase pipe is connected with the liquid outlet end of the main condensation separation mechanism, the gas outlet end of the main condensation separation mechanism extends to form a plurality of main pipelines with controllable flow, one main pipeline is connected with the gas inlet end of the main reaction furnace, and the other main pipeline is connected with;
vice processing apparatus, it includes vice reacting furnace, vice liquid phase pipe, vice gaseous phase pipe, vice condensation separating mechanism, vice logical chlorine pipe one end with the end connection of giving vent to anger of chlorine production device switches on, the other end with the inlet end of vice reacting furnace switches on, vice gaseous phase pipe one end with the vice reacting furnace end connection of giving vent to anger, the other end with the inlet end of vice condensation separating mechanism is connected, vice liquid phase pipe one end with vice reacting furnace feed liquor end is connected, the other end with the play liquid end of vice condensation separating mechanism is connected, the end extension of giving vent to anger of vice condensation separating mechanism forms the vice pipeline of a plurality of steerable flows, vice pipeline respectively with the inlet end of vice reacting furnace, the inlet end of main reacting furnace, tail gas processing apparatus connects, the inlet end of vice reacting furnace with one the main pipeline is connected.
The utility model discloses be provided with vice processing apparatus, vice processing apparatus delays the back to start relatively main processing apparatus to let in vice processing apparatus with main processing apparatus's tail gas, utilize the high characteristics of chlorine utilization ratio in earlier stage of reflection, participate in the reaction in the vice processing apparatus with excessive chlorine in the main processing apparatus, existing effect has utilized chlorine to practice thrift the cost, reduce the processing degree of difficulty of tail gas again, practice thrift the liquid caustic soda that absorbs chlorine, reduced the tail gas treatment cost.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural diagram of an apparatus for synthesizing o-chlorotrifluorobenzyl chloride by serially connecting and sleeving tail gases according to an embodiment of the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1, for the utility model provides a tail gas series connection overlaps and opens synthetic adjacent chlorine trichlorobenzyl equipment, it includes main processing apparatus 1, vice processing apparatus 2, chlorine generate device 3, tail gas processing apparatus 4, main processing apparatus 1 with chlorine generate device 3 tail gas processing apparatus 4 is connected, vice processing apparatus 2 with chlorine generate device 3 tail gas processing apparatus 4 is connected.
The main treatment device 1 comprises a main reaction furnace 11, a main liquid phase pipe 12, a main gas phase pipe 13, a main condensation separation mechanism 14 and a main chlorine pipe 15, wherein one end of the main chlorine pipe 15 is connected and communicated with the gas outlet end of the chlorine generating device 3, the other end of the main chlorine pipe is connected and communicated with the gas inlet end of the main reaction furnace 11, one end of the main gas phase pipe 13 is connected with the gas outlet end of the main reaction furnace 11, the other end of the main chlorine pipe is connected with the gas inlet end of the main condensation separation mechanism 14, one end of the main liquid phase pipe 12 is connected with the liquid inlet end of the main reaction furnace 11, and the other end of the main liquid phase pipe 12 is connected with the liquid outlet end of the main condensation.
The main reaction furnace 11 is used for heating and reacting; when the catalyst is used, the o-chlorotoluene and the catalyst are placed in the main reaction furnace 11, and chlorine is introduced into the main reaction furnace 11 to prepare the o-chlorotrifluorobenzyl.
The main condensation separation mechanism 14 includes a first-order main condenser 141, a second-order main condenser 142, a first-order main separator 143 and a second-order main separator 144, the feed end of the first-order main condenser 141 is connected to the end of the main gas phase pipe 13 away from the main reactor 11, the discharge end of the first-order main condenser 141 is connected with the feed end of the first-order main separator 143, the liquid outlet end of the first-order main separator 143 is connected with the main reaction furnace 11, the gas outlet end of the first-order main separator 143 is connected with the feed end of the second-order main condenser 142, the main reaction furnace 11 and the auxiliary reaction furnace 21, the discharge end of the second order main condenser 142 is connected to the feed end of the second order main separator 144, the liquid outlet end of the second-order main separator 144 is connected with the main reaction furnace 11, and the gas outlet end of the second-order main separator 144 is connected with the tail gas treatment device 4.
A first main adjusting valve 145 is arranged on a pipeline between the gas outlet end of the first-order main separator 143 and the feed end of the second-order main condenser 142, a second main adjusting valve 146 is arranged on a pipeline connecting the gas outlet end of the first-order main separator 143 with the main reaction furnace 11 and the auxiliary reaction furnace 21, and the second main adjusting valve 146 adjusts the flow rate of gas of the first-order main separator 143 entering the main reaction furnace 11 and the auxiliary reaction furnace 21.
And a first chlorine inlet regulating valve 151 for regulating the chlorine inlet amount is arranged on the main chlorine inlet pipe 15.
The side reaction furnace 21 is used for heating and reacting; when the catalyst is used, the o-chlorotoluene and the catalyst are placed in the side reaction furnace 21, and chlorine is introduced into the side reaction furnace 21 to prepare the o-chlorotrifluorobenzyl.
The secondary condensation and separation mechanism 24 includes a first-order secondary condenser 241, a second-order secondary condenser 242, a first-order secondary separator 243 and a second-order secondary separator 244, the feeding end of the first-order sub-condenser 241 is connected with the end of the sub-gas phase pipe 23 away from the sub-reactor 21, the discharge end of the first order sub-condenser 241 is connected to the feed end of the first order sub-separator 243, the liquid outlet end of the first-order secondary separator 243 is connected with the secondary reaction furnace 21, the gas outlet end of the first-order secondary separator 143 is connected with the feeding end of the second-order secondary condenser 142, the secondary reaction furnace 21 and the main reaction furnace 11, the discharge end of the second order secondary condenser 242 is connected to the feed end of the second order secondary separator 244, the liquid outlet end of the second-order secondary separator 244 is connected with the secondary reaction furnace 21, and the gas outlet end of the second-order secondary separator 244 is connected with the tail gas treatment device 4.
A first auxiliary regulating valve 245 is arranged on a pipeline between the gas outlet end of the first-order auxiliary separator 243 and the feed end of the second-order auxiliary condenser 242, and a second auxiliary regulating valve 246 is arranged on a pipeline connecting the gas outlet end of the first-order auxiliary separator 243 with the auxiliary reaction furnace 21 and the main reaction furnace 11.
And a second chlorine regulating valve 251 for regulating the chlorine introducing amount is arranged on the auxiliary chlorine introducing pipe 25.
The chlorine generating device 3 is used for generating chlorine required by production.
The tail gas treatment device 4 treats tail gas generated by processing.
When the chlorine introducing device is used, the first chlorine introducing regulating valve 151 and the first main regulating valve 145 are opened, the second main regulating valve 146, the second chlorine introducing regulating valve 251, the first auxiliary regulating valve 245 and the second auxiliary regulating valve 246 are kept in a closed state, the o-chlorotoluene and the catalyst are added into the main reaction furnace 11, and chlorine is introduced. With the reaction, the o-chlorotoluene as the raw material is gradually reduced, the reaction speed is gradually reduced, and the problem of excessive chlorine gas is caused; after a certain time from the start of the operation of the main reaction furnace 11, the first main regulation valve 145 is closed; the second regulating valve 146, the second chlorine regulating valve 251, the first auxiliary regulating valve 245 and the second auxiliary regulating valve 246 are opened, ortho-chlorotoluene and a catalyst are added into the auxiliary reaction furnace 21, the auxiliary reaction furnace 21 is also in a working state, chlorine which is introduced into the main reaction furnace 11 and is not reacted enters the main reaction furnace 11 and the auxiliary reaction furnace 12 through the second main regulating valve 146, at the moment, a part of chlorine circulates in the main treatment device 1, so that residual ortho-chlorotoluene in the main reaction furnace 11 is reacted, the other part of chlorine enters the auxiliary reaction furnace 21, the content of the ortho-chlorotoluene in the auxiliary reaction furnace 21 is high, the reaction is fast, most of the introduced chlorine is reacted, and the content of the chlorine in tail gas is low. Therefore, the main reaction furnace 11 and the secondary reaction furnace 21 are alternately used as main production mechanisms, so that chlorine is fully utilized, products are continuously produced, the content of chlorine in tail gas is reduced, and the cost of tail gas treatment is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a tail gas is established ties and is opened synthetic ortho-chloro trichlorobenzyl equipment, which comprises:
a chlorine generating device;
a tail gas treatment device;
the main treatment device comprises a main reaction furnace, a main liquid phase pipe, a main gas phase pipe, a main condensation separation mechanism and a main chlorine pipe, wherein one end of the main chlorine pipe is communicated with the gas outlet end of the chlorine gas generation device, the other end of the main chlorine pipe is communicated with the gas inlet end of the main reaction furnace, one end of the main gas phase pipe is connected with the gas outlet end of the main reaction furnace, the other end of the main gas phase pipe is connected with the gas inlet end of the main condensation separation mechanism, one end of the main liquid phase pipe is connected with the liquid inlet end of the main reaction furnace, the other end of the main liquid phase pipe is connected with the liquid outlet end of the main condensation separation mechanism, the gas outlet end of the main condensation separation mechanism extends to form a plurality of main pipelines with controllable flow, one main pipeline is connected with the gas inlet end of the main reaction furnace, and the other main pipeline is connected with;
vice processing apparatus, it includes vice reacting furnace, vice liquid phase pipe, vice gaseous phase pipe, vice condensation separating mechanism, vice logical chlorine pipe one end with the end connection of giving vent to anger of chlorine production device switches on, the other end with the inlet end of vice reacting furnace switches on, vice gaseous phase pipe one end with the vice reacting furnace end connection of giving vent to anger, the other end with the inlet end of vice condensation separating mechanism is connected, vice liquid phase pipe one end with vice reacting furnace feed liquor end is connected, the other end with the play liquid end of vice condensation separating mechanism is connected, the end extension of giving vent to anger of vice condensation separating mechanism forms the vice pipeline of a plurality of steerable flows, vice pipeline respectively with the inlet end of vice reacting furnace, the inlet end of main reacting furnace, tail gas processing apparatus connects, the inlet end of vice reacting furnace with one the main pipeline is connected.
2. The equipment for synthesizing the ortho-chlorobenzyl chloride by serially connecting and sleeving the tail gas according to claim 1, the main condensation separation mechanism comprises a first-order main condenser, a second-order main condenser, a first-order main separator and a second-order main separator, the feed end of the first-order main condenser is connected with one end of the main gas phase pipe away from the main reaction furnace, the discharge end of the first-order main condenser is connected with the feed end of the first-order main separator, the liquid outlet end of the first-order main separator is connected with the main reaction furnace, the air outlet end of the first-order main separator is connected with the feed end of the second-order main condenser, the main reaction furnace and the secondary reaction furnace, the discharge end of the second-order main condenser is connected with the feed end of the second-order main separator, the liquid outlet end of the second-order main separator is connected with the main reaction furnace, and the gas outlet end of the second-order main separator is connected with the tail gas treatment device.
3. The apparatus for synthesizing o-chlorobenzyl chloride according to claim 2, wherein a first main regulating valve is disposed on the pipeline between the outlet end of the first-stage main separator and the inlet end of the second-stage main condenser, and a second main regulating valve is disposed on the pipeline connecting the outlet end of the first-stage main separator with the main reaction furnace and the auxiliary reaction furnace.
4. The equipment for synthesizing the ortho-chlorobenzyl chloride by serially connecting and sleeving the tail gas according to claim 3, the auxiliary condensation and separation mechanism comprises a first-order auxiliary condenser, a second-order auxiliary condenser, a first-order auxiliary separator and a second-order auxiliary separator, the feed end of the first-order auxiliary condenser is connected with one end of the auxiliary gas phase pipe far away from the auxiliary reaction furnace, the discharge end of the first-order auxiliary condenser is connected with the feed end of the first-order auxiliary separator, the liquid outlet end of the first-order auxiliary separator is connected with the auxiliary reaction furnace, the air outlet end of the first-order secondary separator is connected with the feed end of the second-order secondary condenser, the secondary reaction furnace and the main reaction furnace, the discharge end of the second-order secondary condenser is connected with the feed end of the second-order secondary separator, the liquid outlet end of the second-order secondary separator is connected with the secondary reaction furnace, and the gas outlet end of the second-order secondary separator is connected with the tail gas treatment device.
5. The apparatus for synthesizing o-trichlorobenzyl chloride according to claim 4, wherein a first auxiliary regulating valve is arranged on a pipeline between the gas outlet end of the first-order auxiliary separator and the feed end of the second-order auxiliary condenser, and a second auxiliary regulating valve is arranged on a pipeline connecting the gas outlet end of the first-order auxiliary separator with the auxiliary reaction furnace and the main reaction furnace.
6. The equipment for synthesizing the o-chlorobenzyl chloride by serially connecting and sleeving the tail gas as claimed in claim 1, wherein the main chlorine pipe is provided with a first chlorine regulating valve for regulating the chlorine gas introduction amount.
7. The equipment for synthesizing the o-chlorobenzyl chloride by serially connecting and sleeving the tail gas as claimed in claim 1, wherein a second chlorine through regulating valve for regulating the chlorine gas introduction amount is arranged on the auxiliary chlorine through pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021116096.5U CN213032457U (en) | 2020-06-16 | 2020-06-16 | Equipment for synthesizing o-chlorotrifluorobenzyl through serial sleeved tail gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021116096.5U CN213032457U (en) | 2020-06-16 | 2020-06-16 | Equipment for synthesizing o-chlorotrifluorobenzyl through serial sleeved tail gas |
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| CN213032457U true CN213032457U (en) | 2021-04-23 |
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| CN202021116096.5U Active CN213032457U (en) | 2020-06-16 | 2020-06-16 | Equipment for synthesizing o-chlorotrifluorobenzyl through serial sleeved tail gas |
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Denomination of utility model: A device for the synthesis of orthochlorotrichlorobenzene through series opening of exhaust gas Effective date of registration: 20230512 Granted publication date: 20210423 Pledgee: Bank of China Limited Huanggang branch Pledgor: Hubei Qianjia Chemical Co.,Ltd. Registration number: Y2023420000202 |