CN208814662U - A kind of working solution after-treatment system of hydrogen peroxide - Google Patents
A kind of working solution after-treatment system of hydrogen peroxide Download PDFInfo
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- CN208814662U CN208814662U CN201821329517.5U CN201821329517U CN208814662U CN 208814662 U CN208814662 U CN 208814662U CN 201821329517 U CN201821329517 U CN 201821329517U CN 208814662 U CN208814662 U CN 208814662U
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Abstract
The utility model discloses a kind of working solution after-treatment systems of hydrogen peroxide comprising extraction tower outlet tube, extraction raffinate separator, drying tower, alkali separator, carclazyte bed, submerged soil, spent liquor evaporation device, lye configured slot, lye filter and collecting tank.The utility model has the advantages that the utility model structure is simple, Yi Shixian；The dilute potassium carbonate solution for realizing drying tower discharge recycles again, avoids the waste of potassium carbonate, has saved production cost, while without outlet again, avoiding pollution environment；It ensure that the potassium carbonate after raffinate in liquid is effectively separated, good separating effect；And it avoids and the situation that potassium carbonate is entrained in carclazyte bed occurs, reduce the workload of carclazyte bed, improve the service life of carclazyte bed, reduce the cost of maintenance replacement carclazyte bed.
Description
Technical field:
The utility model relates to a kind of processing system more particularly to a kind of working solution after-treatment systems of hydrogen peroxide.
Background technique:
Hydrogen peroxide is a kind of important raw material of industry, be widely used in chemical synthesis, environmental protection, papermaking, defense military,
The fields such as electronics, medicine, food and agricultural；Country's oxydol production apparatus overwhelming majority uses anthraquinone autooxidation at present,
Anthraquinone autooxidation is by palladium catalyst fixed bed hydrogenation, oxidizing tower air oxidation, extracting and purifying and working solution post-processing etc.
Process composition；Product hydrogen peroxide and raffinate are obtained after extracting and purifying process, and a small amount of hydrogen peroxide is carried in raffinate,
If hydrogen peroxide is carried in hydrogenation reactor by raffinate, generation oxygen can be decomposed under the action of palladium catalyst, it is anti-in hydrogenation
It answers device to have under a large amount of hydrogen atmospheres, easily explodes, therefore raffinate first needs to pass through in drying tower potassium carbonate for carrying
A small amount of decomposing hydrogen dioxide solution is water and oxygen, oxygen outlet, and water is carbonated potassium absorption, obtains liquid after dilute potassium carbonate solution and raffinate；
Dilute potassium carbonate solution, which is discharged in collecting tank, is neutralized rear outlet；Liquid enters alkali point after raffinate containing a small amount of potassium carbonate
From in device, potassium carbonate is formed into working solution from separating in liquid after raffinate, working solution, which enters in carclazyte bed, to be regenerated later again
Back to hydrogenation process；It is had the following problems using above-mentioned working solution after-treatment system: 1, completing decomposing hydrogen dioxide solution and absorb water
The potassium carbonate divided becomes weak solution and is discharged into collecting tank and the outlet after neutralizing, and causes the waste of potassium carbonate, increases production
Cost, while being discharged into environment and polluting the environment；2, existing alkali separator simply by liquid after raffinate working solution with
The specific gravity of solution of potassium carbonate carries out sedimentation separation, and it is long to separate the required time, and then leads to working solution and carbonic acid for inferior separating effect
The low separation efficiency of potassium solution；It still has potassium carbonate to be brought in carclazyte bed, increases the workload of carclazyte bed, use the longevity
Life reduces.
Utility model content:
The purpose of this utility model is to provide a kind of structure is simple, potassium carbonate recycling is realized, and efficiently separate
The working solution after-treatment system of the hydrogen peroxide of working solution and solution of potassium carbonate.
The utility model is implemented by following technical solution: a kind of working solution after-treatment system of hydrogen peroxide comprising extraction
Tower outlet tube, extraction raffinate separator, drying tower, alkali separator, carclazyte bed, submerged soil, spent liquor evaporation device, lye configured slot, alkali
Liquid filter and collecting tank；The extraction tower outlet tube is connected to setting, the raffinate with the inlet of the extraction raffinate separator
The liquid outlet of liquid/gas separator is connected to the inlet of the drying tower by pipeline；The liquid outlet of the drying tower and the alkali point
Oily phase import from device is connected to by pipeline, and mutually outlet and the inlet of the carclazyte bed pass through pipeline to the oil of the alkali separator
Connection, the liquid outlet of the carclazyte bed are connected to the inlet of the submerged soil by pipeline；The lye export of the drying tower
It is connected to the import of the spent liquor evaporation device by pipeline；The outlet and the import of the lye configured slot of the spent liquor evaporation device
It is connected to by pipeline；The outlet of the lye configured slot is connected to the import of the lye filter by alkali liquor pipe；Described
Alkali pump is provided on alkali liquor pipe；The outlet of the lye filter is connected to the lye import of the drying tower by pipeline；Institute
The water phase outlet for stating alkali separator is connected to the collecting tank by pipeline.
Further, it is the tank body of back taper, spray tube, spray head, dispersion sieve plate, that the alkali separator, which includes bottom,
One filter layer, liquid collecting funnel and check hole；The bottom of the tank body is provided with the water phase outlet；In the top of the tank body
It is provided through the spray tube, is connected to and is fixed with described in several on the part that the spray tube is located at the tank inner chamber
Spray head；The dispersion sieve plate is fixed in the inner tank wall below the spray tube；Under the dispersion sieve plate
First filter layer is fixed in the inner tank wall of side；The tank inner chamber below first filter layer is set
It is equipped with the liquid collecting funnel；The upper end headwall of the liquid collecting funnel is fixed in the inner tank wall；In the liquid collecting funnel
The oil is provided on the tank wall between headwall and the fluid hole of the liquid collecting funnel mutually to export；In the tank body
Check that hole, the bottom edge for checking hole are located at the lower section that the oil mutually exports described in offering in lower sidewalls.
Further, the second filter layer is fixed in described check in the inner tank wall below hole；The liquid collecting
The bottom end of funnel is placed on the lower section of second filter layer through second filtering.
The advantages of the utility model: 1, the utility model structure is simple, Yi Shixian；Realize the potassium carbonate of drying tower discharge
Weak solution recycles again, avoids the waste of potassium carbonate, has saved production cost, while without outlet again, avoiding
Pollute environment；2, the alkali separator in the utility model can not only be carried out according to the specific gravity difference of working solution and solution of potassium carbonate
Sedimentation separation can also pass through the first filter layer and the second filter layer to impurity such as potassium carbonate indissoluble particles in liquid after raffinate
Effective filtering has been carried out, ensure that the potassium carbonate after raffinate in liquid is effectively separated, good separating effect；And it avoids
There is the situation that potassium carbonate is entrained in carclazyte bed, reduces the workload of carclazyte bed, improve the use of carclazyte bed
Service life reduces the cost of maintenance replacement carclazyte bed.
Detailed description of the invention:
Fig. 1 is the overall structure diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of alkali separator.
Extraction tower outlet tube 1, extraction raffinate separator 2, drying tower 3, alkali separator 4, tank body 4.1, water phase outlet 4.11,
Oily mutually outlet 4.12, spray tube 4.2, spray head 4.3 disperse sieve plate 4.4, the first filter layer 4.5, liquid collecting funnel 4.6, fluid hole
4.61, check hole 4.7, the second filter layer 4.8, carclazyte bed 5, spent liquor evaporation device 6, lye configured slot 7, lye filter 8, receipts
Collect slot 9, alkali liquor pipe 10, alkali pump 11, submerged soil 12.
Specific embodiment:
Below in conjunction with attached drawing, by embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of working solution after-treatment system of hydrogen peroxide, a kind of working solution after-treatment system of hydrogen peroxide,
It includes extraction tower outlet tube 1, extraction raffinate separator 2, drying tower 3, alkali separator 4, carclazyte bed inlet tube 5, spent liquor evaporation device
6, lye configured slot 7, lye filter 8 and collecting tank 9；Extraction tower outlet tube 1 is connected to the inlet of extraction raffinate separator 2 and sets
It sets, the liquid outlet of extraction raffinate separator 2 is connected to the inlet of drying tower 3 by pipeline；The liquid outlet of drying tower 3 is separated with alkali
The oily phase import of device 4 is connected to by pipeline, and mutually outlet 4.12 and the inlet of carclazyte bed 5 are connected the oil of alkali separator 4 by pipeline
Logical, the liquid outlet of carclazyte bed 5 is connected to the inlet of submerged soil 12 by pipeline；The lye export and spent liquor evaporation of drying tower 3
The import of device 6 is connected to by pipeline；The outlet of spent liquor evaporation device 6 is connected to the import of lye configured slot 7 by pipeline；Lye is matched
The outlet for setting slot 7 is connected to the import of lye filter 8 by alkali liquor pipe 10；Alkali pump 11 is provided on alkali liquor pipe 10；Lye
The outlet of filter 8 is connected to the lye import of drying tower 3 by pipeline；Water phase outlet 4.11 and the collecting tank 9 of alkali separator 4
It is connected to by pipeline.
As shown in Fig. 2, alkali separator 4 includes the tank body 4.1 that bottom is back taper, spray tube 4.2, spray head 4.3, dispersion
Sieve plate 4.4, the first filter layer 4.5, liquid collecting funnel 4.6 and check hole 4.7；The bottom of tank body 4.1 is provided with water phase outlet
4.11；It is provided through spray tube 4.2 in the top of tank body 4.1, is connected on the part that spray tube 4.2 is located at 4.1 inner cavity of tank body
It is logical to be fixed with several spray heads 4.3；Dispersion sieve plate 4.4 is fixed on 4.1 inner wall of tank body below spray tube 4.2；?
The first filter layer 4.5 is fixed on 4.1 inner wall of tank body of 4.4 lower section of dispersion sieve plate；Tank body below the first filter layer 4.5
4.1 inner cavities are provided with liquid collecting funnel 4.6；The upper end headwall of liquid collecting funnel 4.6 is fixed on 4.1 inner wall of tank body；In liquid collecting funnel
Oily mutually outlet 4.12 is provided on 4.1 side wall of tank body between 4.6 headwall and the fluid hole 4.61 of liquid collecting funnel 4.6；In tank
It is offered in the lower sidewalls of body 4.1 and checks hole 4.7, checked that the bottom edge in hole 4.7 is located at the lower section that oil mutually exports 4.12, check
The second filter layer 4.8 is fixed on 4.1 inner wall of tank body of 4.7 lower section of hole；The bottom end of liquid collecting funnel 4.6 is through the second filtering
Layer 4.8 is placed in the lower section of the second filter layer 4.8.
Working principle: raffinate enters in extraction raffinate separator 2 by extraction tower outlet tube 1, isolates in raffinate
Enter drying tower 3 after contained moisture；Dense solution of potassium carbonate decomposes the hydrogen peroxide in raffinate in drying tower 3, makes
Decomposing hydrogen dioxide solution is oxygen and moisture, and dense solution of potassium carbonate absorbs moisture formation dilute potassium carbonate solution from drying tower 3 after having decomposed
It is discharged into alkali evaporator, heating concentration is carried out to dilute potassium carbonate solution in spent liquor evaporation device 6；It is configured then into lye
In slot 7, potassium carbonate particle is added into lye configured slot 7 and is stirred, decompose hydrogen peroxide until solution of potassium carbonate concentration meets
It is required that being then pumped into lye filter 8, unfused potassium carbonate particle is filtered, the solution of potassium carbonate after having filtered into
Enter and hydrogen peroxide is decomposed again in drying tower 3；Liquid enters alkali separator 4 and will carry after raffinate after removing hydrogen peroxide
A small amount of solution of potassium carbonate separate to obtain working solution, the solution of potassium carbonate separated is drained into collecting tank 9, working solution
Then enter carclazyte bed 5 to regenerate, subsequently enters and accumulated in submerged soil 12, complete the subsequent processing of working solution, be finally re-circulated into
Equipment in hydrogenation process；It realizes and recycles the dilute potassium carbonate solution that drying tower 3 is discharged again, avoid potassium carbonate
Waste, has saved production cost, while without outlet again, avoiding pollution environment.
The spray head 4.3 of alkali separator 4 is sprayed into tank body 4.1；By point of dispersion sieve plate 4.4 after into tank body 4.1
The first filter layer 4.5 is fallen on after dissipating, the impurity and part potassium carbonate after raffinate in liquid pass through the filtering of the first filter layer 4.5, fall
Onto liquid collecting funnel 4.6, liquid is flowed downward along liquid collecting funnel 4.6 due to the gravity of itself after raffinate, finally from liquid out
Hole 4.61 drops onto 4.1 bottom of tank body, different from the specific gravity of solution of potassium carbonate according to working solution, than heavy solution of potassium carbonate
4.1 bottom of tank body is sunk to, the working solution of light specific gravity floats, as time increases, in the liquid level of 4.1 bottom liquid of tank body
It rises, is filtered using the second filter layer 4.8, when liquid level is higher than oily mutually outlet 4.12, working solution mutually exports 4.12 from oily
The separation of working solution and solution of potassium carbonate is completed in outflow, while from the boundary for checking that working solution and solution of potassium carbonate are checked in hole 4.7
Line, when boundary line reaches the position for checking hole 4.7, stop into tank body 4.1 spray raffinate after liquid, and by solution of potassium carbonate from
4.11 discharge of water phase outlet；Effectively by solution of potassium carbonate from being separated in liquid after raffinate, good separating effect, and avoid
There is potassium carbonate and be entrained to the situation in carclazyte bed, reduce the workload of carclazyte bed, improve carclazyte bed uses the longevity
Life reduces the cost of maintenance replacement carclazyte bed；The utility model structure is simple, Yi Shixian.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (3)
1. a kind of working solution after-treatment system of hydrogen peroxide, which is characterized in that it includes extraction tower outlet tube, raffinate separation
Device, drying tower, alkali separator, carclazyte bed, submerged soil, spent liquor evaporation device, lye configured slot, lye filter and collecting tank；Institute
It states extraction tower outlet tube and is connected to setting, the liquid outlet of the extraction raffinate separator and institute with the inlet of the extraction raffinate separator
The inlet for stating drying tower is connected to by pipeline；The liquid outlet of the drying tower and the oily phase import of the alkali separator pass through pipe
Road connection, mutually outlet is connected to the inlet of the carclazyte bed by pipeline the oil of the alkali separator, and the carclazyte bed goes out
Liquid mouth is connected to the inlet of the submerged soil by pipeline；The lye export of the drying tower and the spent liquor evaporation device into
Mouth passes through pipeline and is connected to；The outlet of the spent liquor evaporation device is connected to the import of the lye configured slot by pipeline；The alkali
The outlet of liquid configured slot is connected to the import of the lye filter by alkali liquor pipe；Alkali pump is provided on the alkali liquor pipe；
The outlet of the lye filter is connected to the lye import of the drying tower by pipeline；The water phase of the alkali separator exports
It is connected to the collecting tank by pipeline.
2. a kind of working solution after-treatment system of hydrogen peroxide according to claim 1, which is characterized in that the alkali separator
It is the tank body of back taper including bottom, spray tube, spray head, disperses sieve plate, the first filter layer, liquid collecting funnel and check hole；?
The bottom of the tank body is provided with water phase outlet；The spray tube is provided through above the tank body, in the spray
Pipe is located at connection on the part of the tank inner chamber and is fixed with several spray heads；The tank below the spray tube
The dispersion sieve plate is fixed on internal wall；Described the is fixed in the inner tank wall below the dispersion sieve plate
One filter layer；The tank inner chamber below first filter layer is provided with the liquid collecting funnel；The liquid collecting funnel
Upper end headwall is fixed in the inner tank wall；Between the headwall of the liquid collecting funnel and the fluid hole of the liquid collecting funnel
Oily mutually outlet is provided on the tank wall；Hole is checked described in offering in the lower sidewalls of the tank body, it is described to check
The bottom edge in hole is located at the lower section that the oil mutually exports.
3. a kind of working solution after-treatment system of hydrogen peroxide according to claim 2, which is characterized in that check hole described
The second filter layer is fixed in the inner tank wall of lower section；The bottom end of the liquid collecting funnel is through the second filtering stratification
In the lower section of second filter layer.
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| CN201821329517.5U CN208814662U (en) | 2018-08-16 | 2018-08-16 | A kind of working solution after-treatment system of hydrogen peroxide |
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| CN201821329517.5U CN208814662U (en) | 2018-08-16 | 2018-08-16 | A kind of working solution after-treatment system of hydrogen peroxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477096A (en) * | 2022-03-02 | 2022-05-13 | 潜江益和化学品有限公司 | High-efficiency extraction process in hydrogen peroxide production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477096A (en) * | 2022-03-02 | 2022-05-13 | 潜江益和化学品有限公司 | High-efficiency extraction process in hydrogen peroxide production process |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210416 Address after: 750336 south of Ulanbuhe street, WUSITAI Town, Alxa League economic and Technological Development Zone, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Kangsheng Chemical Co.,Ltd. Address before: 750336 Office Building of Dakang Company, Ustin Town, Alxa League Economic Development Zone, Inner Mongolia Autonomous Region Patentee before: INNER MONGOLIA DAKANG INDUSTRIAL Co.,Ltd. |