CN104841148A - Acetic acid purification apparatus - Google Patents
Acetic acid purification apparatus Download PDFInfo
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- CN104841148A CN104841148A CN201410052250.XA CN201410052250A CN104841148A CN 104841148 A CN104841148 A CN 104841148A CN 201410052250 A CN201410052250 A CN 201410052250A CN 104841148 A CN104841148 A CN 104841148A
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- rectifier
- distiller
- acetic acid
- quartz glass
- acid purification
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to an acetic acid purification apparatus. According to the acetic acid purification apparatus, a distiller is provided with a liquid inlet and a steam outlet; a rectifier is provided with a cooling pipe, a steam inlet, a liquid outlet, and a steam outlet, the water inlet pipe and the water outlet pipe on the cooling pipe penetrate through the rectifier wall and are sealedly connected with the rectifier wall, a waste steam condenser and a finished product condenser are provided with a liquid inlet and a liquid outlet, the liquid inlet of a balancer made from quartz glass is arranged on the upper end of the balancer, the liquid outlet on the bottom portion of the balancer is communicated with the liquid inlet arranged on one side of the bottom portion of the distiller made from quartz glass, the steam outlet on the top portion of the distiller is communicated with the steam inlet arranged on one side of the bottom portion of the rectifier made from quartz glass, the steam outlet on the top portion of the rectifier is communicated with the steam inlet of the waste steam condenser made from quartz glass, and the bottom portion of the waste steam condenser is provided with the liquid outlet; and the liquid outlet arranged on the bottom portion of the rectifier is communicated with the liquid inlet arranged on the top portion of the finished product condenser made from quartz glass, the bottom portion of the finished product condenser is provided with the liquid outlet, and the bottom portion of the rectifier is higher than the top portion of the finished product condenser.
Description
Technical field
The present invention relates to a kind of acetic acid purification device, be mainly used in purifying to acetic acid.
Background technology
The molecular formula of acetic acid is C
2h
4o
2, boiling point is 118.1 degree, and Chinese is acetic acid, and another name glacial acetic acid, belongs to the 8.1st class corrosives.The content produced with low pressure carbonylation method just can meet the requirement of GB1903-2008 " food additives glacial acetic acid " at the thick acetic acid of 97-98% after purifying.Thick acetic acid refers to the acetic acid containing impurity such as formic acid, acetic anhydride, nonvolatile matter, chloride, iron and heavy metals.Because the corrosivity of thick acetic acid is too strong, existing acetic acid purification device is mainly made with stainless steel material, main employing distillation, rectifying, condensation production technology, by impurity removals such as formic acid, acetic anhydride, nonvolatile matter, chloride, iron and heavy metals, utilize the boiling point of acetic acid and impurity, freezing point are different purifies.Existing acetic acid purification plant area area is large, and the equipment for purifying selecting stainless steel material to make is opaque, in Long-Time Service process, there will be corrosion in various degree, brings some inconvenience to plant maintenance, operation.
Summary of the invention
The technical problem that the present invention solves is to provide that a kind of corrosion resistance is strong, maintenance and operation acetic acid purification device easily.
Technical scheme of the present invention is done in such a way that a kind of acetic acid purification device, and include distiller, rectifier, waste condensator, finished product condenser, distiller is provided with inlet, venthole, rectifier is provided with cooling tube, air intake, liquid outlet, venthole, water inlet pipe on cooling tube and outlet pipe pass rectifying wall and are tightly connected in rectifying wall, waste condensator and finished product condenser are equipped with inlet, liquid outlet, also include the balancer be made up of quartz glass, balancer inlet is located at the upper end of balancer, be located at liquid outlet bottom balancer to be communicated with the inlet being located at side bottom the distiller be made up of quartz glass, the venthole being located at distiller top is communicated with the air intake being located at side bottom the rectifier be made up of quartz glass, the venthole being located at rectifier top is communicated with the air intake being located at the waste condensator be made up of quartz glass, liquid outlet is provided with bottom waste condensator, the liquid outlet be located at bottom rectifier is communicated with the inlet being located at the finished product condenser overhead be made up of quartz glass, is provided with liquid outlet bottom finished product condenser, during installation, the liquid level in balancer be made consistent with the liquid level of distiller middle and lower part, bottom rectifier, be higher than finished product condenser overhead.
Be provided with heater inside described distiller middle and lower part, the liquid level in distiller is higher than heater.
Described heater is made up of the spiral quartz glass tube be located at inside distiller and the electric furnace heating wire be located at inside spiral quartz glass tube, and incoming line, the line outlet at spiral quartz glass tube two ends are tightly connected with the tube wall of distiller respectively.
Distillation wall above described heater is provided with the projection of entering to distiller middle concave, is provided with gap between projection, and lobed interior and air contact portion are hollow shape.
Described protruding arranged radially has three, and snag axis is to being arranged with two rows.
Protruding upper support is arranged on described top one and mess therein has several little quartz glass tubes.
Cooling tube in rectifier is located at rectifier top, and rectifier middle and lower part is provided with the projection of entering to rectifier middle concave, is provided with gap between projection, and lobed interior and air contact portion are hollow shape.
Described protruding arranged radially has three, and snag axis is to being arranged with five rows.
Condenser pipe in described finished product condenser is sugarcoated haws shapes.
Condenser pipe in described waste condensator is sugarcoated haws shapes.
Technique effect of the present invention is, because this acetic acid purification device adopts silica glass material processing and manufacturing, and SiO
2content can reach more than 99.97%, and this material transparency is high, corrosion-resistant, production operation intuitive is strong.Heater is located at distiller inside, the area of thick acetic acid and heater mediate contact is increased, improves heat utilization ratio, saved the energy.Because rectifier have employed bulge-structure, increase and contacting external air area, improve condensation effect.Owing to being filled with the little quartz glass tube of mess therein in distiller, can effectively tackle the impurity such as iron, heavy metal, improve the purity of acetic acid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is distiller A-A cross-sectional view of the present invention.
Fig. 3 is rectifier B-B cross-sectional view of the present invention.
Detailed description of the invention
The present invention is described in more detail by reference to the accompanying drawings, and acetic acid purification device includes distiller 11, rectifier 25, waste condensator 38, finished product condenser 31, and distiller 11 is provided with inlet 6, venthole 7, rectifier 25 is provided with cooling tube 22, air intake 19, liquid outlet 26, venthole 20, water inlet pipe 18 on cooling tube 22 and outlet pipe 21 pass rectifying wall and are tightly connected in rectifying wall, waste condensator 38 and finished product condenser 31 are equipped with inlet 35, 28, liquid outlet 33, 27, the inlet 2 of the balancer 3 be made up of quartz glass is located at the upper end of balancer 3, be located at liquid outlet 4 bottom balancer 3 to be communicated with the inlet 6 being located at side bottom the distiller 11 be made up of quartz glass, the venthole 7 being located at distiller 11 top is communicated with the air intake 19 being located at side bottom the rectifier 25 be made up of quartz glass, the venthole 20 being located at rectifier 25 top is communicated with the air intake 35 being located at the waste condensator 38 be made up of quartz glass, liquid outlet 33 is provided with bottom waste condensator 38, the liquid outlet 26 be located at bottom rectifier 25 is communicated with the inlet 28 being located at finished product condenser 31 top of being made up of quartz glass, is provided with liquid outlet 27 bottom finished product condenser 31, during installation, the liquid level in balancer 3 be made consistent with the liquid level of distiller 11 middle and lower part, bottom rectifier 25, be higher than finished product condenser 31 top.
For improving the utilization rate of heat energy, distiller 11 is provided with heater inside middle and lower part, and the liquid level in distiller is higher than heater.Heater is made up of the spiral quartz glass tube 13 be located at inside distiller and the electric furnace heating wire 14 be located at inside spiral quartz glass tube, and incoming line 12, the line outlet 15 at spiral quartz glass tube two ends are tightly connected with the tube wall of distiller respectively.The power of electric furnace heating wire can be set to 1600 watts or 1000 watts according to actual needs.
For acetic acid gas can be made to cool in uphill process, the distillation wall above heater is provided with the projection 9 of entering to distiller 11 middle concave, is provided with gap between protruding 9, and protruding 9 inside are hollow shape with air contact portion 10.Protruding 9 arranged radiallys have three, and protruding 9 axially-aligned have two rows.
For the impurity such as iron, heavy metal in acetic acid gas can be removed, protruding upper support is arranged on top one and mess therein has several little quartz glass tubes 8, acetic acid gas stops through little quartz glass tube 8 back and forth at uphill process, the impurity such as part iron, heavy metal can be tackled, these impurity are back to postprecipitation bottom distillation cascade, can discharge through discharging tube 16.
Cool in uphill process for acetic acid gas can be made, cooling tube 22 in rectifier 25 is located at rectifier 25 top, rectifier middle and lower part is provided with the projection 23 of entering to rectifier 25 middle concave, is provided with gap between protruding 23, and protruding 23 inside are hollow shape with air contact portion 24.Described protruding 23 arranged radiallys have three, and protruding 23 axially-aligned have five rows.
For increasing acetic acid gas inside finished product condenser pipe or liquid and contacting external air area, being beneficial to and cooling, improving condensation effect, the condenser pipe 30 in finished product condenser 31 is designed to sugarcoated haws shape.
For increasing waste vapour inside waste vapour condenser pipe or liquid and contacting external air area, being beneficial to and cooling, improving condensation effect, the condenser pipe 37 in waste condensator 38 is designed to sugarcoated haws shape.
Tube connector between balancer 3 and distiller 11 is arranged overflow pipe 5, effectively can ensure the stability of the liquid level in balancer 3, distiller 11.
Be provided with leakage fluid dram 16 bottom distiller 11, leakage fluid dram 16 place is provided with valve, can be discharged by the raffinate after the distillation in distiller 11 according to actual conditions.
Rear transparent shape made by balancer 3, distiller 11, rectifier 25, finished product condenser 31, waste condensator 38 quartz glass, also the communicating pipe between said vesse can be set as quartz glass tube, be convenient to observe liquid, the duty of gas in each flow process in production process, make production convenient with maintenance.
During purification, the potassium permanganate powder adding porphyrize according to thick acetic acid weight ratio is the 1-2% of thick acetic acid weight, abundant stirring makes it dissolve, to keep in 1 hour not shank color, extract supernatant and enter gravity tank 1, slowly open gravity tank 1 valve, allowing thick acetic acid stoste enter balancer 3 flows in distiller 11 again, in distiller 11, liquid level is higher than heater, liquid level in balancer 3 remains on 1/3rd places of balancer height, thick acetic acid stoste amount in continuous inflow balancer 3 equals the evaporation capacity of the thick acetic acid stoste in distiller, make liquid level all-the-time stable in balancer 3 and distiller 11 in a liquid level.Connect the power supply of electric furnace heating wire, heat thick acetic acid stoste, can need according to practical operation the power number adjusting electric furnace heating wire 14, the heating liquid temperature in distiller is remained between 118 to 120 degree.The gas formed in distiller enters in the middle of rectifier 25 after rising through projection 9, little quartz glass tube 8; Gas continues to rise in rectifier, and after projection 23, cooling tube 22 cool, the acetic acid liquid of formation drops to bottom rectifier and enters into finished product condenser 31 by leakage fluid dram 26, inlet 28.According to the temperature that the thermal detector 17 being located at rectifier top records, by the water velocity in adjustment cooling tube 22, rectifier head temperature is controlled between 102-115 degree; Water in cooling tube 22 is entered from water inlet pipe 21, and the order of going out from outlet pipe 18 cools.Enter the acetic acid liquid in finished product condenser 31 by after the condenser pipe 30 of sugarcoated haws shape further cooling, flow in finished product receiving tank 34 by liquid outlet 27 and be finished product, water in condenser 31 is entered from water inlet pipe 32, and the order of going out from outlet pipe 29 cools; The waste vapour rising to rectifier top enters in the middle of waste condensator 38 through venthole 20, air intake 35, and waste vapour, after the condenser pipe 37 of sugarcoated haws shape cools further, enters to flow in low-boiling products collecting tank 40 by liquid outlet 33 and collects; Water in condenser 38 is entered from water inlet pipe 39, and the order of going out from outlet pipe 36 cools.
For enhancing productivity, distiller 11, rectifier 25, finished product condenser 31, waste condensator 38 are set to one group of purifying plant, a balancer 3 can be purified with many groups purifying plant described above.
The present invention also can be used for other similar materials and purifies.
Claims (10)
1. an acetic acid purification device, include distiller, rectifier, waste condensator, finished product condenser, distiller is provided with inlet, venthole, rectifier is provided with cooling tube, air intake, liquid outlet, venthole, water inlet pipe on cooling tube and outlet pipe pass rectifying wall and are tightly connected in rectifying wall, waste condensator and finished product condenser are equipped with inlet, liquid outlet, it is characterized in that: also include the balancer be made up of quartz glass, balancer inlet is located at the upper end of balancer, be located at liquid outlet bottom balancer to be communicated with the inlet being located at side bottom the distiller be made up of quartz glass, the venthole being located at distiller top is communicated with the air intake being located at side bottom the rectifier be made up of quartz glass, the venthole being located at rectifier top is communicated with the air intake being located at the waste condensator be made up of quartz glass, liquid outlet is provided with bottom waste condensator, the liquid outlet be located at bottom rectifier is communicated with the inlet being located at the finished product condenser overhead be made up of quartz glass, is provided with liquid outlet bottom finished product condenser, during installation, the liquid level in balancer be made consistent with the liquid level of distiller middle and lower part, bottom rectifier, be higher than finished product condenser overhead.
2. a kind of acetic acid purification device according to claim 1, is characterized in that: be provided with heater inside described distiller middle and lower part, the liquid level in distiller is higher than heater.
3. a kind of acetic acid purification device according to claim 2, it is characterized in that: described heater is made up of the spiral quartz glass tube be located at inside distiller and the electric furnace heating wire be located at inside spiral quartz glass tube, and incoming line, the line outlet at spiral quartz glass tube two ends are tightly connected with the tube wall of distiller respectively.
4. a kind of acetic acid purification device according to claim 3, it is characterized in that: the distillation wall above described heater is provided with the projection of entering to distiller middle concave, is provided with gap between projection, lobed interior and air contact portion are hollow shape.
5. a kind of acetic acid purification device according to claim 4, it is characterized in that: described protruding arranged radially has three, snag axis is to being arranged with two rows.
6. a kind of acetic acid purification device according to claim 5, is characterized in that: protruding upper support is arranged on described top one and mess therein has several little quartz glass tubes.
7. a kind of acetic acid purification device according to claim 1, it is characterized in that: the cooling tube in rectifier is located at rectifier top, rectifier middle and lower part is provided with the projection of entering to rectifier middle concave, is provided with gap between projection, and lobed interior and air contact portion are hollow shape.
8. a kind of acetic acid purification device according to claim 7, it is characterized in that: described protruding arranged radially has three, snag axis is to being arranged with five rows.
9., according to a kind of acetic acid purification device of claim 1 to 8 described in one of them, it is characterized in that: the condenser pipe in described finished product condenser is sugarcoated haws shapes.
10., according to a kind of acetic acid purification device of claim 9 described in one of them, it is characterized in that: the condenser pipe in described waste condensator is sugarcoated haws shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052250.XA CN104841148A (en) | 2014-02-17 | 2014-02-17 | Acetic acid purification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052250.XA CN104841148A (en) | 2014-02-17 | 2014-02-17 | Acetic acid purification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841148A true CN104841148A (en) | 2015-08-19 |
Family
ID=53841366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410052250.XA Pending CN104841148A (en) | 2014-02-17 | 2014-02-17 | Acetic acid purification apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN104841148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499077A (en) * | 2018-12-17 | 2019-03-22 | 盐城工业职业技术学院 | A kind of pharmaceutical synthesis separating-purifying device |
-
2014
- 2014-02-17 CN CN201410052250.XA patent/CN104841148A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499077A (en) * | 2018-12-17 | 2019-03-22 | 盐城工业职业技术学院 | A kind of pharmaceutical synthesis separating-purifying device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |
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| WD01 | Invention patent application deemed withdrawn after publication |