CN207493481U - A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas - Google Patents
A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas Download PDFInfo
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- CN207493481U CN207493481U CN201820197099.2U CN201820197099U CN207493481U CN 207493481 U CN207493481 U CN 207493481U CN 201820197099 U CN201820197099 U CN 201820197099U CN 207493481 U CN207493481 U CN 207493481U
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Abstract
A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas includes the two-stage clear water jet stream spray-absorption device and level-one lye spray-absorption device of sequence setting；First order clear water jet stream spray-absorption device includes superposed graphite material first grade absorption tower (1) and the PPR material first circulation aqua storage tanks (4) below first grade absorption tower；Second level clear water jet stream spray-absorption device includes superposed graphite material two-level absorption tower (2) and the PPR material second circulation aqua storage tanks (5) below two-level absorption tower；Lye spray-absorption device includes superposed PPR materials three-level absorption tower (3) and the PPR material circulation alkali liquor reservoirs (6) below three-level absorption tower.The utility model can improve OBPA combined coefficienies, solve the excessive environmental pollution problem of hydrogen chloride, realize hydrogen chloride safe utilization, and can reduce absorption processing cost.
Description
Technical field
The processing unit technology of the by-product-hydrogen chloride gas neck that the utility model is related to be generated in OBPA production processes
Domain.
Background technology
OBPA chemical names join double phenoxazine pyrrole ethers, English name for 10,10- oxygen:10,10'oxybis-
Phenoxarsine, international abbreviation OBPA, for white or grey powder, odorless, 181~182 DEG C of fusing point does not dissolve in
Water, the solubility very little in common organic solvents, thermal stability are 200 DEG C stable in weak acid and weak base, to ultraviolet light not
Stablize.The product is a kind of novel mildew resistant fungicide, is mainly used in the antimycotic antiseptic of building coating and concrete.At present,
OBPA productions are to add in a certain amount of catalyst using Biphenyl Ether, arsenic trichloride, carry out chlorination reaction, principal product subtracts by two steps
Pressure distillation obtains intermediate CPA, CPA and alkali, ethyl alcohol, the water hydrolysis in hydrolysis kettle, and qualification is obtained after filtration drying
OBPA products.Production process reaction can generate a large amount of tail gas product-hydrogen chloride, and existing hydrochlorination system is to use
Lye spray-absorption generates sodium chloride acid solution, the problem is that:1) it is to generate gas volume to increase that OBPA, which produces chlorination reaction,
Big reaction, using conventional reverse-flow spray-absorption, a large amount of gases are also rested in reaction kettle, are unfavorable for the progress of synthetic reaction；
2) using single-stage conventional reverse-flow spray-absorption, since lye absorbing hydrogen chloride is exothermic reaction, absorbing liquid will soon heat up, lead
It causes assimilation effect poor, also there are a large amount of sour gas spilling, pollutes the environment；3) sodium hydroxide solution is directly used
It is higher to absorb processing cost, and the sodium chloride-containing and acid solution amount of arsenic is more is difficult with, bring safety storage pressure.Cause
This, the processing system for being badly in need of the hydrogen chloride gas generated to existing OBPA production procedures is improved.
Invention content
The purpose of this utility model is that solving problem of the prior art, OBPA conjunctions in OBPA productions can be improved by providing one kind
Into efficiency, solve the excessive environmental pollution problem of hydrogen chloride, realization hydrogen chloride safe utilization and the chlorine that absorption processing cost can be reduced
Change hydrogen and safely absorb processing system.
The purpose of this utility model is achieved through the following technical solutions：
A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas includes the two-stage clear water jet stream of sequence setting
Spray-absorption device and level-one lye spray-absorption device；First order clear water jet stream spray-absorption device includes superposed stone
Black material first grade absorption tower and the PPR material first circulation aqua storage tanks below first grade absorption tower；Second level clear water jet stream spray
Leaching absorption plant includes superposed graphite material two-level absorption tower and the PPR materials second below two-level absorption tower are followed
Ring aqua storage tank；The lye spray-absorption device includes superposed PPR materials three-level absorption tower and positioned at three-level absorption tower
The PPR material circulation alkali liquor reservoirs of lower section；The main body of the first grade absorption tower and two-level absorption tower is carried for circulating cooling
Water by interlayer；The first circulation aqua storage tank, second circulation aqua storage tank, circulation alkali liquor reservoir are enclosed slot；One
Grade absorption tower top is connected to the air inlet pipe for introducing OBPA production byproduct hydrogen chloride gas of the first non-return valve of band, first order absorption
Tower bottom is connected to the first outlet tube connected with first circulation aqua storage tank, is provided with first circulation water pipe and first circulation pump by the
Water in one cycle aqua storage tank is recycled to first order absorption top of tower；Be connected on two-level absorption tower top the second non-return valve of band by
The first snorkel that residual chloride hydrogen is sent into one cycle aqua storage tank, two-level absorption tower bottom is connected to and second circulation water storage
Second outlet tube of slot connection, is provided with second circulation water pipe and the water in second circulation aqua storage tank is recycled to by second circulation pump
At the top of two-level absorption tower；It is connected to residual chloride hydrogen in second circulation aqua storage tank in three-level absorption tower lower part with third non-return valve
The second snorkel that gas is sent into, three-level absorb the bottom of the tower are connected to the third outlet tube connected with circulation alkali liquor reservoir, set
There are third circulating water pipe and third circulating pump that the lye in circulation alkali liquor reservoir is recycled to three-level absorption tower top, three-level is inhaled
It receives top of tower and is provided with evacuated tube.
Three-level spray equipment is provided at the top of three-level absorption tower described in the utility model, the three-level spray equipment is setting
Three spray heads in different height position, third circulating water pipe connection three-level spray equipment.
The hydrogen chloride gas that the utility model generates when efficiently can produce chlorination reaction to 0BPA is effectively sprayed
It is emptied after absorption cleaning, vacuum can be formed in system free from environmental pollution while, takes hydrogen chloride gas away in time, and protect
The progress for promoting chlorination synthetic reaction in reaction kettle in micro-vacuum state is held, is effectively improved production environment safety in production.Meanwhile
Also there is the advantages that easy for installation, easy to maintenance, service life is long, and operation is convenient.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model.
Specific embodiment
With reference to Fig. 1, the utility model provides the absorption of the byproduct hydrogen chloride gas processing generated in a kind of OBPA productions
System includes the two-stage clear water jet stream spray-absorption device and level-one lye spray-absorption device of sequence setting.First order clear water
Jet stream spray-absorption device includes superposed graphite material first grade absorption tower 1 and the PPR materials below first grade absorption tower
Matter first circulation aqua storage tank 4.Second level clear water jet stream spray-absorption device includes superposed graphite material two-level absorption tower 2
With the PPR material second circulations aqua storage tank 5 below two-level absorption tower.The lye spray-absorption device includes being located at top
PPR material three-levels absorption tower 3 and the PPR material circulation alkali liquors reservoir 6 below three-level absorption tower.The first order absorption
The main body of tower 1 and two-level absorption tower 2 carry for recirculated cooling water by interlayer, cooling circulating water from lower water inlet 23 into
Enter cooling tower interlayer, come out from top water outlet 24, absorption tower is improved to hydrogen chloride gas by the cooling water cooling of cycle
Absorption efficiency.The first circulation aqua storage tank 4, second circulation aqua storage tank 5, circulation alkali liquor reservoir 6 are enclosed slot；In level-one
1 top of absorption tower is connected to the air inlet pipe 7 for introducing OBPA production byproduct hydrogen chloride gas, and the first check is housed in air inlet pipe
Valve 8.First order absorption tower bottom is connected to the first outlet tube 9 connected with first circulation aqua storage tank 4, is provided with first circulation water pipe 10
And the water in first circulation aqua storage tank 4 is recycled to 1 top of first grade absorption tower by first circulation pump 11.On 2 top of two-level absorption tower
The first snorkel 13 connected with first circulation aqua storage tank 4 is connected to, residual chloride hydrogen in first circulation aqua storage tank 4 is sent into
Two-level absorption tower is equipped with the second non-return valve 12 on the first snorkel.It is connected in two-level absorption tower bottom and second circulation water storage
The second outlet tube 14 that slot 5 connects, is provided with second circulation water pipe 15 and second circulation pump 16 will be in second circulation aqua storage tank 5
Water is recycled to 2 top of two-level absorption tower.Second connected with second circulation aqua storage tank 5 is connected in 3 lower part of three-level absorption tower to supply gas
Pipe 18 is equipped with third non-return valve 17 on the second snorkel.Second snorkel 18 is by chlorination remaining in second circulation aqua storage tank 5
Hydrogen is sent into three-level absorption tower.Three-level absorb the bottom of the tower is connected to the third outlet tube 19 connected with circulation alkali liquor reservoir 6, if
It is equipped with third circulating water pipe 20 and the lye in circulation alkali liquor reservoir 6 is recycled in three-level absorption tower 3 by third circulating pump 21
Top, the top in three-level absorption tower is provided with three-level spray equipment, and the three-level spray equipment is is arranged on different height
Three spray heads 22 of position are spent, third circulating water pipe 20 connects three-level spray equipment.The row of being provided at the top of three-level absorption tower
Blank pipe 25.
During utility model works, the byproduct hydrogen chloride gas that OBPA production processes generate enters one by air inlet pipe 7
Grade absorption tower, first circulation pump 11 is by the clear water in first circulation aqua storage tank 4 by first circulation water pipe 10 from first grade absorption tower 1
Top sprays at a high speed, generates chlorination synthetic reaction in absorption tower, and the hydrochloric acid solution and residual chloride hydrogen of generation are from first
Outlet tube 9 enters first circulation aqua storage tank 4, first circulation pump 11 will be mixed into hydrochloric acid solution water in first circulation aqua storage tank 4
Constantly cycle is recycled to 1 top continuous high speed of first grade absorption tower and sprays into, such iterative cycles.Collect in first circulation aqua storage tank 4
In residual chloride hydrogen sent by the first snorkel 13 to two-level absorption tower 2, second circulation pump 16 is by second circulation water storage
Clear water in slot 5 is sprayed at a high speed by second circulation water pipe 15 from 2 top of two-level absorption tower, continues to generate chlorination in absorption tower
Synthetic reaction, the hydrochloric acid solution and residual chloride hydrogen of generation enter second circulation aqua storage tank 5 from the second outlet tube 14, and second
The water that hydrochloric acid solution has been mixed into second circulation aqua storage tank 4 constantly cycle is recycled to 1 top height of first grade absorption tower by circulating pump 11
Speed sprays into, such iterative cycles.The residual chloride hydrogen collected in second circulation aqua storage tank 4 is sent by the second snorkel 18
To three-level absorption tower 3, third circulating pump 21 inhales the lye in circulation alkali liquor reservoir 6 by third circulating water pipe 20 from three-level
It receives 3 top of tower to spray into, lye is sprayed by three spray heads 22 of the three-level spray equipment in different height position, in absorption tower
Sufficient neutralization reaction, thorough absorbing hydrogen chloride gas are generated with remaining hydrogen chloride gas.The neutralization solution of generation is from third
Outlet tube 19 enters circulation alkali liquor reservoir 5, and the solution in circulation alkali liquor reservoir is constantly recycled loopback by third circulating pump 21
It is sprayed to 6 top of three-level absorption tower, such iterative cycles.Finally passed through in three-level absorption tower by the clean tail gas of processing
Evacuated tube 25 is directly discharged into air, to environment without any pollution.
The setting of the air inlet pipeline and outlet pipe of the utility model first grade absorption tower and two-level absorption tower uses high in and low out,
And all install non-return valve additional on air inlet pipeline, effective input of hydrogen chloride gas can be improved, convenient for hydrogen chloride gas absorption and
Vacuum is formed since the high speed of liquid is injected in system, reaction gas reactor is enable quickly to take away, promotes chlorination synthetic reaction
Progress.Air inlet pipeline and the outlet pipe setting on three-level absorption tower install check additional using low in and high out on air inlet pipeline
Valve improves the effective of residual chloride hydrogen and inputs and convenient for absorbing, and tail gas clean-up is thorough.
The concentration of hydrochloric acid that the utility model effectively increases the absorption efficiency of hydrogen chloride gas and formed, convenient for recycling profit
With.Concentration of hydrochloric acid after first order absorption can reach more than 30%, and the concentration of hydrochloric acid after two level absorbs can reach more than 20%.Tail gas
It can directly be emptied after purification, efficiently solve pollution of the OBPA productions to environment, also improve production environment.
The first grade absorption tower of the utility model, two-level absorption tower, three-level absorption tower can directly be purchased from market, also can root
According to prior art self design.
Claims (2)
1. a kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas, which is characterized in that include the two of sequence setting
Grade clear water jet stream spray-absorption device and level-one lye spray-absorption device；First order clear water jet stream spray-absorption device includes position
In the graphite material first grade absorption tower (1) on top and the PPR material first circulation aqua storage tanks (4) below first grade absorption tower；
Second level clear water jet stream spray-absorption device includes superposed graphite material two-level absorption tower (2) and positioned at two-level absorption tower
The PPR material second circulation aqua storage tanks (5) of lower section；The lye spray-absorption device includes superposed PPR materials three-level
Absorption tower (3) and the PPR material circulation alkali liquor reservoirs (6) below three-level absorption tower；The first grade absorption tower (1) and two
Grade absorption tower (2) main body carry for recirculated cooling water by interlayer；The first circulation aqua storage tank (4), second circulation
Aqua storage tank (5), circulation alkali liquor reservoir (6) are enclosed slot；The first non-return valve of band (8) is connected on first grade absorption tower (1) top
The air inlet pipe (7) for introducing OBPA production byproduct hydrogen chloride gas, first order absorption tower bottom is connected to and first circulation water storage
The first outlet tube (9) of slot (4) connection is provided with first circulation water pipe (10) and first circulation pump (11) by first circulation water storage
Water in slot (4) is recycled at the top of first grade absorption tower (1)；The second non-return valve of band (12) is connected on two-level absorption tower (2) top
By in first circulation aqua storage tank (4) residual chloride hydrogen be sent into the first snorkel (13), two-level absorption tower bottom be connected to
The second outlet tube (14) of second circulation aqua storage tank (5) connection is provided with second circulation water pipe (15) and second circulation pump (16)
Water in second circulation aqua storage tank (5) is recycled at the top of two-level absorption tower (2)；Band is connected in three-level absorption tower (3) lower part
The second snorkel (18) for being sent into residual chloride hydrogen in second circulation aqua storage tank (5) of three non-return valves (17), three-level are inhaled
Receive tower bottom be connected to the third outlet tube (19) connected with circulation alkali liquor reservoir (6), be provided with third circulating water pipe (20) and
Lye in circulation alkali liquor reservoir (6) is recycled to three-level absorption tower (3) top by third circulating pump (21), and three-level absorbs tower top
Portion is provided with evacuated tube (25).
2. a kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas according to claim 1, feature exist
In three-level absorption tower (3) top is provided with three-level spray equipment, and the three-level spray equipment is is arranged on different height position
Three spray heads (22) put, third circulating water pipe (20) connection three-level spray equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820197099.2U CN207493481U (en) | 2018-02-05 | 2018-02-05 | A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820197099.2U CN207493481U (en) | 2018-02-05 | 2018-02-05 | A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207493481U true CN207493481U (en) | 2018-06-15 |
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ID=62509698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820197099.2U Active CN207493481U (en) | 2018-02-05 | 2018-02-05 | A kind of absorption processing system of OBPA productions byproduct hydrogen chloride gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207493481U (en) |
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2018
- 2018-02-05 CN CN201820197099.2U patent/CN207493481U/en active Active
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