CN209722002U - A kind of chlorohydrination epoxides process units more than purpose product - Google Patents
A kind of chlorohydrination epoxides process units more than purpose product Download PDFInfo
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- CN209722002U CN209722002U CN201920053517.5U CN201920053517U CN209722002U CN 209722002 U CN209722002 U CN 209722002U CN 201920053517 U CN201920053517 U CN 201920053517U CN 209722002 U CN209722002 U CN 209722002U
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Abstract
The utility model gives the chlorohydrination epoxides process units more than a kind of purpose product.Device includes no hydrogen chloride hypochlorous acid reactor (1), gas-liquid separation device (2), chlorohydrin action device (3), saponification device (4), epoxide reaction device (5).Device sodium bicarbonate removes the hydrogen chloride that water and chlorine reaction generate, chlorohydrin action is carried out with the hypochlorite solution of no hydrogen chloride, saponification is carried out with sodium hydroxide, epoxides can be easily separated the operation of the stripping separation and Extraction epoxides in no traditional handicraft after saponification.The plant capacity is big, and production process no coupling product chloropropane, no solid slag, saponification waste-water is few, and is easy to resource utilization, economic benefit and obvious environment benefit.
Description
Technical field:
The utility model relates to a kind of process units of chemical products, more particularly to a kind of Organic chemical products epoxidation
The process units of object.
Background technique:
Industrialized epoxides production technology multiplicity both at home and abroad at present, wherein chlorohydrination epoxides be it is domestic and
Most commonly used classics conventional production methods in world wide.China's epoxides produces based on chlorohydrination.
Chlorohydrination epoxides production history is long, main processes include alcoholizing propenyl chloride, chloropropyl alcohol saponification and
Product purification.The characteristics of method is mature production technology, and construction investment is few, and to the of less demanding of raw material, product cost is low.The method
The shortcomings that be that water resources consumption is big, generate a large amount of waste water and waste residue, such as every one ton of propylene oxide of production generates 40 ~ 50 tons
Chloride saponification waste-water and nearly 2 tons of waste residue are difficult to handle；In addition, propylene oxide by chlorohydrination production process corrodes sternly equipment
Weight, equipment material require high；Another deficiency of chlorohydrination is byproduct market price far below purpose product, and demand is few.
As country constantly payes attention to industrial environmental requirement, the waste water and waste residue generated in epoxides production is difficult
The bottleneck for restricting method production is had become in processing, and the production of chlorohydrination epoxides is caused to be in dilemma.Turn off environmental protection
Underproof chlorohydrination epoxides manufacturer not can guarantee the chlorine balance of chlor-alkali industry then in the short time；Guarantee saponification
Waste water and Solid state fermentation are qualified, then mass customization improves, and profit margin reduces, and Business survival is difficult.
Change to traditional chlorohydrination production technology that chlorine and propylene or chloropropene etc. are raw material production epoxides
Upgrading is made, a kind of new complexes of chloropharin legal system epoxides are formed, meets environmental requirements epoxides production same
When, and there is good profit margin, it is the urgent need of China's epoxides production industry.
Summary of the invention:
The purpose of the utility model is to provide a kind of new chloropharin legal system epoxides process units.The device produces epoxy
Compound, no solid waste residue, saponification waste-water is few, and saponification waste-water is easily handled and utilizes, and by-product is few, can with same consumption of raw materials
Produce more purpose products.
The utility model is achieved through the following technical solutions:
A kind of chlorohydrination epoxides process units more than purpose product, the process units includes no hydrogen chloride hypochlorous acid
Reaction unit, gas-liquid separation device, the chlorohydrin action device with gas-liquid separation, saponification device, epoxides separation
Device, equipment room connecting pipeline, valve, pans, air transporting arrangement, liquid transporting apparatus, control and display instrument and attached
Part.No hydrogen chloride hypochlorous acid reaction unit, saponification device are the tubular reactor with or without collet, and tubular reactor is
The turbulent element of movement is thanksed for your hospitality in setting to fluid in blank pipe or pipe；Chlorohydrin action device with gas-liquid separation is tower anti-
Answer the combination of device, stirred reactor, tubular reactor, recirculation reactor or previous reaction device；Epoxides separator is to connect
Continuous rectifier unit or continuous sedimentation device or continuous reaction rectification device or successive reaction sedimentation device；Without hydrogen chloride hypochlorous acid
Reaction unit is equipped with chlorine gas and water, sodium bicarbonate entrance and reacting material outlet, reacting material outlet and gas-liquid separation device entrance
Connection；Gas-liquid separation device liquid-phase outlet is connect with hypochlorite solution's entrance of the chlorohydrin action device with gas-liquid separation；
Chlorohydrin action device with gas-liquid separation is equipped with hypochlorite solution's entrance, to chlorohydrination feed(raw material)inlet, a chloropropyl alcohol or two
Chloropropyl alcohol taphole and the outlet of unreacted propylene or chloropropene, a chloropropyl alcohol or dichlorohydrin taphole and saponification
Device portal is connected；Saponification device is equipped with a chloropropyl alcohol or dichlorohydrin and saponification agent sodium hydroxide entrance and saponification
Object outlet, the outlet of saponification object are connect with epoxides separator material inlet.
Hypochlorite solution's thickening device is set after gas-liquid separation device, which is arranged dilute hypochlorite solution's entrance, steams
Shampoo outlet and enrichment hypochlorite solution outlet, dilute hypochlorite solution's entrance are connect with gas-liquid separation device liquid-phase outlet, enrichment
Hypochlorite solution outlet is connect with hypochlorite solution's entrance of the chlorohydrin action device with gas-liquid separation.
The advantages of the utility model, is with effect:
1. carrying out chlorohydrin action using the hypochlorite solution without hydrogen chloride, by-product is few, same consumption of raw materials, mesh
Product yield high；
2. high concentration hypochlorous acid can be used and carry out chlorohydrin action, device produces energy due to without hydrochloric acid in hypochlorite solution
Power is big；
3. the installation optimization and the production process for shortening propylene oxide by chlorohydrination and epoxychloropropane.For epoxy third
Alkane produces, and only needs distillation, flash distillation or rectifying that can directly obtain propylene oxide after chloropropyl alcohol saponification, without traditional chlorohydrination ring
First stripping in oxide production process steams propylene oxide and dichloropropane, then separates propylene oxide and dichloro third by rectifying
The operation of alkane；Epoxychloropropane is produced, dichlorohydrin does not use the stripping operation in Conventional process by ring after being saponified
Oxygen chloropropane steams, and only needs sedimentation separation that can separate epoxychloropropane with residual water is saponified；
4. epoxides production process is without waste residue；
5. saponification waste-water can be reduced；
6. keeping saponification waste-water composition simple and can realize resource utilization and be easily handled；
7. slowing down the corrosion of chlorohydrin action device and saponification device.
Detailed description of the invention:
Fig. 1 is then to carry out chlorohydrin action and saponification with the hydrogen chloride in sodium bicarbonate removing hypochlorite solution
Propylene oxide by chlorohydrination process units schematic diagram.
Fig. 2 is then to carry out chlorohydrin action and saponification with the hydrogen chloride in sodium bicarbonate removing hypochlorite solution
Chlorohydrination epoxychloropropane process units schematic diagram.
Specific embodiment:
Embodiment 1
Chlorohydrination epoxides process units more than a kind of purpose product of embodiment 1, process units include being used for water, chlorine
Gas and reaction of sodium bicarbonate without hydrogen chloride hypochlorous acid reaction unit 1, for the gas-liquid of hypochlorite solution and carbon dioxide separation
Separator 2, the chlorohydrin action device 3 with gas-liquid separation, saponification device 4, epoxides separator 5, equipment
Between connecting pipeline, valve, pans, air transporting arrangement, liquid transporting apparatus, control and display instrument and attachment.Without chlorination
Hydrogen hypochlorous acid reaction unit 1, saponification device 4 are tubular reactor, and setting is thanksed for your hospitality movement to fluid and used in tubular reactor
Turbulent element be chemical filler；Chlorohydrin action device 3 with gas-liquid separation is tower reactor；Epoxides separation dress
5 are set as continuous rectification apparatus；No hydrogen chloride hypochlorous acid reaction unit 1 is equipped with sodium bicarbonate, water and chlorine inlet and reaction mass
Outlet, reacting material outlet are connect with 2 entrance of gas-liquid separation device；2 liquid-phase outlet of gas-liquid separation device with have gas-liquid separation
Chlorohydrin action device 3 hypochlorite solution's entrance connection；Chlorohydrin action device 3 with gas-liquid separation is equipped with hypochlorous acid
Solution inlet, to chlorohydrination raw material propylene entrance, a chloropropyl alcohol taphole, a chloropropyl alcohol taphole and saponification device
4 entrances are connected；Saponification device 4 is equipped with a chloropropyl alcohol entrance, saponification agent sodium hydroxide entrance and the outlet of saponification object, soap
Change reactant exit to connect with 5 material inlet of epoxides separator.Epoxides separator 5 is rectifying column.Embodiment 1
Device schematic diagram is shown in Fig. 1.
Embodiment 2
Chlorohydrination epoxides process units more than a kind of purpose product of embodiment 2, process units include no hydrogen chloride
Hypochlorous acid reaction unit 1, gas-liquid separation device 2, chlorohydrin action device 3, saponification device 4, epoxides separator
5, equipment room connecting pipeline, valve, pans, air transporting arrangement, liquid transporting apparatus, control and display instrument and attachment.
No hydrogen chloride hypochlorous acid reaction unit 1, saponification device are tubular reactor, and setting thankss for your hospitality fluid dynamic in tubular reactor
The turbulent element of effect is commercially available static mixer；Chlorohydrin action device 3 is tower reactor；Epoxides separator 5
For continuous sedimentation device；No hydrogen chloride hypochlorous acid reaction unit 1 is equipped with chlorine and water goes out with sodium bicarbonate entrance and reaction mass
Mouthful, reacting material outlet is connect with 2 entrance of gas-liquid separation device；2 liquid-phase outlet of gas-liquid separation device and chlorohydrin action device 3
Hypochlorite solution's entrance connection；Chlorohydrin action device 3 is equipped with hypochlorite solution's entrance, enters to chlorohydrination raw material chloropropene
Mouth, dichlorohydrin taphole, dichlorohydrin taphole are connected with 4 entrance of saponification device；Saponification device 4 is equipped with
Dichlorohydrin entrance, saponification agent sodium hydroxide entrance and the outlet of saponification object, the outlet of saponification object are separated with epoxides
The connection of 5 material inlet of device.Epoxides separator 5 is continuous sedimentation device.2 device schematic diagram of embodiment is shown in Fig. 2.
Embodiment 3
Embodiment 3 is substantially the same manner as Example 1, the difference is that in gas-liquid separation device 2 and with gas-liquid separation
Hypochlorite solution's evaporation concentration device is set between chlorohydrin action device 3.
Embodiment 4
Embodiment 4 is substantially the same manner as Example 1, the difference is that epoxides separator 5 is reactive distillation column.
Embodiment 5
Embodiment 5 is substantially the same manner as Example 1, the difference is that tubular type is without the flow-disturbing member in hcl reaction device 1
Part is commercially available static mixer.
Claims (2)
1. the chlorohydrination epoxides process units more than a kind of purpose product, which is characterized in that the process units includes no chlorine
Change hydrogen hypochlorous acid reaction unit (1), gas-liquid separation device (2), the chlorohydrin action device (3) with gas-liquid separation, saponification instead
Answer device (4), epoxides separator (5), equipment room connecting pipeline, valve, pans, air transporting arrangement, liquid defeated
Send device, control and display instrument and attachment；No hydrogen chloride hypochlorous acid reaction unit (1), saponification device (4) are for band or not
The tubular reactor of jacketed, tubular reactor are the turbulent element that movement is thanksed for your hospitality in setting to fluid in blank pipe or pipe；It has
The chlorohydrin action device (3) of gas-liquid separation is tower reactor, stirred reactor, tubular reactor, recirculation reactor or preceding
State the combination of reactor；Epoxides separator (5) is continuous rectification apparatus or continuous sedimentation device or continuous reaction rectification
Device or successive reaction sedimentation device；No hydrogen chloride hypochlorous acid reaction unit (1) is equipped with chlorine gas and water, sodium bicarbonate entrance and anti-
Material outlet is answered, reacting material outlet is connect with gas-liquid separation device (2) entrance；Gas-liquid separation device (2) liquid-phase outlet and band
There is hypochlorite solution's entrance of the chlorohydrin action device (3) of gas-liquid separation to connect；Chlorohydrin action dress with gas-liquid separation
Set (3) equipped with hypochlorite solution's entrance, to chlorohydrination feed(raw material)inlet, a chloropropyl alcohol or dichlorohydrin taphole and unreacted
Propylene or chloropropene outlet, a chloropropyl alcohol or dichlorohydrin taphole are connected with saponification device (4) entrance；Saponification
Device (4) is equipped with a chloropropyl alcohol or dichlorohydrin and saponification agent sodium hydroxide entrance and saponification object exports, saponification object
Outlet is connect with epoxides separator (5) material inlet.
2. the chlorohydrination epoxides process units more than a kind of purpose product according to claim 1, which is characterized in that In
Hypochlorite solution's thickening device is arranged in gas-liquid separation device (2) afterwards, which is arranged dilute hypochlorite solution's entrance, evaporation water out
It is exported with enrichment hypochlorite solution, dilute hypochlorite solution's entrance is connect with gas-liquid separation device (2) liquid-phase outlet, enrichment hypochlorous acid
Taphole is connect with hypochlorite solution's entrance of the chlorohydrin action device (3) with gas-liquid separation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920053517.5U CN209722002U (en) | 2019-01-14 | 2019-01-14 | A kind of chlorohydrination epoxides process units more than purpose product |
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| CN201920053517.5U CN209722002U (en) | 2019-01-14 | 2019-01-14 | A kind of chlorohydrination epoxides process units more than purpose product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109651299A (en) * | 2019-01-14 | 2019-04-19 | 吴剑华 | Chlorohydrination epoxides process units and its application method more than a kind of purpose product |
| CN112250644A (en) * | 2020-10-14 | 2021-01-22 | 吴剑华 | Hypochlorous acid preparation device for preparing epoxide by using chlorohydrin method and using method |
-
2019
- 2019-01-14 CN CN201920053517.5U patent/CN209722002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109651299A (en) * | 2019-01-14 | 2019-04-19 | 吴剑华 | Chlorohydrination epoxides process units and its application method more than a kind of purpose product |
| CN112250644A (en) * | 2020-10-14 | 2021-01-22 | 吴剑华 | Hypochlorous acid preparation device for preparing epoxide by using chlorohydrin method and using method |
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