CN205774211U - Glycerol method synthesizing epoxy chloropropane chlorination reaction device - Google Patents
Glycerol method synthesizing epoxy chloropropane chlorination reaction device Download PDFInfo
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- CN205774211U CN205774211U CN201620700059.6U CN201620700059U CN205774211U CN 205774211 U CN205774211 U CN 205774211U CN 201620700059 U CN201620700059 U CN 201620700059U CN 205774211 U CN205774211 U CN 205774211U
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Abstract
This utility model belongs to production processes of epoxy chloropropane from glycerol field, relates generally to a kind of new and effective glycerol method synthesizing epoxy chloropropane chlorination reaction device.It includes reactor, outer circulation pump, external circulation heat exchanging device and flash tank, reactor inner top is installed with multi-hole injector, described multi-hole injector includes fluid inlet, nozzle, suction muffler and diffuser pipe the most successively, and on suction muffler, it being covered with aperture, diffuser pipe bottom is provided with V-baffle；It is connected with external circulation heat exchanging device by outer circulation pump bottom reactor, and external circulation heat exchanging device is also connected with flash tank and multi-hole injector fluid inlet.Moisture in described reactor can remove response system the most timely, and substantially all participation of hydrogen chloride is reacted, and positive reaction speed is fast, the conversion ratio of glycerol and hydrogen chloride is high, and the consumption of hydrogen chloride is little, ＜ 0.9t/tECH, under identical ECH yield, series connection still number is less.
Description
Technical field
This utility model belongs to production processes of epoxy chloropropane from glycerol field, relates generally to a kind of new and effective glycerol method
Synthesizing epoxy chloropropane chlorination reaction device.
Background technology
Epoxychloropropane is a kind of important Organic Chemicals and fine chemical product, is used for producing epoxy resin, water
Process resin, strengthen resin, synthetic glycerine and glycidyl ethers and lipid.Epoxychloropropane produces with glycerol, hydrogen chloride
For initiation material, under the effect of catalyst adipic acid, chlorination (replacement) reaction, generation dichlorohydrin is occurred (to be called for short DCH), two
Chloropropyl alcohol obtains product epoxychloropropane (being called for short ECH) with liquid caustic soda through cyclization.Chlorination reaction equation is as follows:
Above-mentioned reaction is reversible exothermic reaction, removing of product moisture, can improve positive reaction speed, increases glycerol and converts
Rate.
Continuity method produces the chlorinating container of ECH and is generally the graphite reactor (see Fig. 1) that band stirs, glycerol and hydrogen chloride
, there is chlorination reaction in continuous feed under the effect of catalyst, reaction temperature ＜ 120 DEG C, reaction pressure is pressure-fired.Unreacted
Hydrogen chloride and the moisture of generation rise in condenser through still top vapor delivery line, moisture is discharged with condensed fluid, and fixed gas is to tail gas
Absorb.In this type of reactor, moisture can not effectively take response system out of, and takes many hydrogen chloride out of during the removing of water
Gas, the conversion ratio of hydrogen chloride is the highest, for ensureing the conversion ratio more than 95% of glycerol, the high (0.95t/ of the consumption of hydrogen chloride
And the still of series connection is more than 5 tECH),.
Utility model content
Little for solving the treating capacity of existing continuity method production epichlorohydrin reaction still, response speed is slow, and reacts raw
The water become can not efficiently separate the shortcoming causing reaction yield low, and this utility model provides a kind of new and effective glycerol method synthesis ring
Oxygen chloropropane chlorination reaction device.
This utility model adopts the following technical scheme that
A kind of glycerol method synthesizing epoxy chloropropane chlorination reaction device, including reactor, outer circulation pump, external circulation heat exchanging device
And flash tank, reactor inner top is installed with multi-hole injector, and described multi-hole injector includes liquid phase the most successively
Being covered with aperture on import, nozzle, suction muffler and diffuser pipe, and suction muffler, diffuser pipe bottom is provided with V-baffle；Polycondensation Reactor and Esterification Reactor
Portion is connected with external circulation heat exchanging device by outer circulation pump, and external circulation heat exchanging device also with flash tank and multi-hole injector fluid inlet
It is connected.Wherein, ejector is in addition to fluid inlet, and remaining is arranged in reactor, and diffuser pipe stretches in still below liquid level.
Described reactor is graphite still, and shape is not limited by agitator, and for slender type, the high level in still adds gas
The time of liquid contact, improve reaction conversion ratio.
Described V-baffle is fixed on reactor.
Described external circulation heat exchanging device is connected with flash tank by air relief valve.Bottom material is pumped into outer circulation by outer circulation and changes
Hot device, the material after heat exchange is divided into two-way, and a road, through air relief valve, enters flash tank, isolates moisture and pole that reaction generates
A small amount of hydrogen chloride (hydrogen chloride is substantially all participates in reaction), makes the positive reaction speed of reaction accelerate, improves turning of reaction raw materials
Rate, alleviates the load of vent gas treatment simultaneously, decreases the discharge of acid tail gas, and liquid phase material delivers to next reactor；
Still top delivered to by another road material, as the liquid phase feeding of multi-hole injector.
Glycerol and hydrogen chloride continuous feed in described chlorination reaction device, it is many that liquid phase material is pumped to still top by outer circulation
Hole ejector fluid inlet, sprays through nozzle, forms fine vacuum in suction muffler, and the gas phase in still is drawn to intracavity by aperture, with
Liquid phase is fully contacted, and substitution reaction occurs, increases contact area and the time of staying of liquid phase, improve reaction rate, gas
Draining into V-baffle through diffuser pipe after liquid mixing, gas phase (unreacted hydrogen chloride) rises, and then gas-liquid counter current contact mass transfer is entered
Entering the gas-phase space in still, form circulation in being inhaled into again multi-hole injector, this gas phase closed circuit adds turning of hydrogen chloride
Rate and unit consumption reduce.
Compared with prior art, this utility model has a following Advantageous Effects:
Moisture in described reactor can remove response system the most timely, and the substantially all participation of hydrogen chloride is anti-
Should, positive reaction speed is fast, and the conversion ratio of glycerol and hydrogen chloride is high, and the consumption of hydrogen chloride is little, ＜ 0.9t/tECH, and identical ECH produces
Under amount, series connection still number is less.
Accompanying drawing explanation
Fig. 1 is that common continuity method produces ECH chlorinating container schematic diagram；
Fig. 2 is glycerol method synthesizing epoxy chloropropane chlorination reaction device schematic diagram described in the utility model；
Reference shown in figure is: 1-multi-hole injector, 2-reactor, 3-V type baffle plate, and 4-outer circulation pump follows outside 5-
Ring heat exchanger, 6-flash tank.
Detailed description of the invention
With embodiment, this utility model is further described below in conjunction with the accompanying drawings:
As in figure 2 it is shown, a kind of glycerol method synthesizing epoxy chloropropane chlorination reaction device, including reactor 2, outer circulation pump 4,
External circulation heat exchanging device 5 and flash tank 6, reactor 2 inner top is installed with multi-hole injector 1, and described multi-hole injector 1 is from upper
Including fluid inlet, nozzle, suction muffler and diffuser pipe under to successively, and suction muffler is covered with aperture, diffuser pipe bottom is provided with V-type
Baffle plate 3；Be connected with external circulation heat exchanging device 5 by outer circulation pump 4 bottom reactor 2, and external circulation heat exchanging device 5 also with flash tank 6
It is connected with multi-hole injector 1 fluid inlet.Wherein, multi-hole injector 1 is in addition to fluid inlet, and remaining is arranged in reactor 2,
And diffuser pipe stretches in still below liquid level.Described reactor 2 is slender type graphite still, and described V-baffle 3 is fixed on reactor
On 2, described external circulation heat exchanging device 5 is connected with flash tank 6 by air relief valve.
The using method of described chlorination reaction device is as follows:
(1) glycerol and hydrogen chloride from battery limit (BL) are delivered in reactor continuously through pipeline, gas-liquid counter current haptoreaction, gas
Rising to gas-phase space, bottom material is by outer circulation pumped；
(2) outer circulation material enters external circulation heat exchanging device through outer circulation pump, is divided into two-way, a road to subtract through air relief valve after heat exchange
After pressure, entering flash tank, isolate moisture and the unreacted hydrogen chloride of very small amount of generation, liquid phase enters next reactor；
(3) another road material of outer circulation enters the multi-hole injector fluid inlet on still top, sprays through nozzle, in suction muffler
Forming fine vacuum, the gas phase in still is drawn to intracavity by aperture, drains into V-baffle through diffuser pipe after gas-liquid mixed, and gas phase rises, gas
Liquid counter current contacting mass transfer, subsequently into the gas-phase space in still, is inhaled into again in ejector, and gas phase forms circulation.
Certainly, foregoing is only preferred embodiment of the present utility model, it is impossible to be considered new for limiting this practicality
The scope of embodiments of type.This utility model is also not limited to the example above, and those skilled in the art are in this reality
With the impartial change made in novel essential scope and improvement etc., patent covering scope of the present utility model all should be belonged to
In.
Claims (4)
1. a glycerol method synthesizing epoxy chloropropane chlorination reaction device, changes including reactor (2), outer circulation pump (4), outer circulation
Hot device (5) and flash tank (6), it is characterised in that reactor (2) inner top is installed with multi-hole injector (1), described porous
Ejector (1) includes fluid inlet, nozzle, suction muffler and diffuser pipe the most successively, and suction muffler is covered with aperture, diffuser pipe
Bottom is provided with V-baffle (3)；Reactor (2) bottom is connected with external circulation heat exchanging device (5) by outer circulation pump (4), and follows outward
Ring heat exchanger (5) is also connected with flash tank (6) and multi-hole injector (1) fluid inlet.
Glycerol method synthesizing epoxy chloropropane chlorination reaction device the most according to claim 1, it is characterised in that described reaction
Still (2) is slender type graphite still.
Glycerol method synthesizing epoxy chloropropane chlorination reaction device the most according to claim 1, it is characterised in that described V-type
Baffle plate (3) is fixed on reactor (2).
Glycerol method synthesizing epoxy chloropropane chlorination reaction device the most according to claim 1, it is characterised in that follow outside described
Ring heat exchanger (5) is connected with flash tank (6) by air relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700059.6U CN205774211U (en) | 2016-07-04 | 2016-07-04 | Glycerol method synthesizing epoxy chloropropane chlorination reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700059.6U CN205774211U (en) | 2016-07-04 | 2016-07-04 | Glycerol method synthesizing epoxy chloropropane chlorination reaction device |
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| Publication Number | Publication Date |
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| CN205774211U true CN205774211U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620700059.6U Active CN205774211U (en) | 2016-07-04 | 2016-07-04 | Glycerol method synthesizing epoxy chloropropane chlorination reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022155782A1 (en) * | 2021-01-19 | 2022-07-28 | 汇智工程科技股份有限公司 | Safety instrument system for graphite synthesis furnace and chlorination reactor in production of epichlorohydrin |
-
2016
- 2016-07-04 CN CN201620700059.6U patent/CN205774211U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022155782A1 (en) * | 2021-01-19 | 2022-07-28 | 汇智工程科技股份有限公司 | Safety instrument system for graphite synthesis furnace and chlorination reactor in production of epichlorohydrin |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266100 No. 196 East Hongkong Road, Laoshan District, Shandong, Qingdao Patentee after: Huizhi engineering Polytron Technologies Inc Address before: 266100 No. 196 East Hongkong Road, Laoshan District, Shandong, Qingdao Patentee before: HUIZHI ENGINEERING SCIENCE & TECHNOLOGY CO., LTD. |