CN204325198U - Dimethyl succinate produces special purpose device - Google Patents
Dimethyl succinate produces special purpose device Download PDFInfo
- Publication number
- CN204325198U CN204325198U CN201420858295.1U CN201420858295U CN204325198U CN 204325198 U CN204325198 U CN 204325198U CN 201420858295 U CN201420858295 U CN 201420858295U CN 204325198 U CN204325198 U CN 204325198U
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- China
- Prior art keywords
- gas phase
- chuck
- reactor
- connects
- phase pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A kind of dimethyl succinate produces special purpose device, there is individual products export reactor (1) below, reactor (1) top connects is equipped with curved gas phase pipe (2), the connection of curved gas phase pipe (2) is equipped with chuck (3), chuck (3) connects one that U-shaped gas phase pipe (4) is housed, the other end of U-shaped gas phase pipe (4) connects the centre being contained in bead tube (5), the bottom of bead tube (5) connects is equipped with rising pipe, the middle and lower part of bead tube (5) is passed chuck (3) and is sleeved in chuck (3), the top of bead tube (5) connects one that water cooler (6) is housed, the other end of water cooler (6) is connected with reactor (1) top by pipeline.Dimethyl succinate production method is raw material, reinforcing body catalyzer continuous pre-esterification and continuous catalyzing rectifying in reactor (1) by succinic acid and methyl alcohol.The utility model energy usage is few, process operations is simple.
Description
Technical field:
The invention relates to dimethyl succinate and produces special purpose device.
Background technology:
The dimethyl succinate in past boils esterification with succinic acid and methyl alcohol and forms in benzole soln under the vitriol oil exists, continuous seepage equipment more complicated used is not said, also need cooling twice, secondary rectifying respectively, energy usage is large, waste energy, process operations is complicated.
Innovation and creation content:
The technical problem that the invention will solve is: provide that a kind of energy usage is few, the simple dimethyl succinate of process operations produces special purpose device.
The technical scheme of the invention is:
Dimethyl succinate produces special purpose device, comprise reactor (1), curved gas phase pipe (2), chuck (3), U-shaped gas phase pipe (4), bead tube (5), water cooler (6), there is individual products export reactor (1) below, reactor (1) top connects is equipped with curved gas phase pipe (2), the connection of curved gas phase pipe (2) is equipped with chuck (3), chuck (3) connects one that U-shaped gas phase pipe (4) is housed, the other end of U-shaped gas phase pipe (4) connects the centre being contained in bead tube (5), the bottom of bead tube (5) connects is equipped with rising pipe, the middle and lower part of bead tube (5) is passed chuck (3) and is sleeved in chuck (3), the top of bead tube (5) connects one that water cooler (6) is housed, the other end of water cooler (6) is connected with reactor (1) top by pipeline.
It is that raw material, the continuous pre-esterification of reinforcing body catalyzer and continuous catalyzing rectifying combination process synthesize that our existing dimethyl succinate is produced by succinic acid and methyl alcohol.
Principle of work: methyl alcohol, the boiling point of dimethyl succinate and water is respectively about 68, about 196, 100 degrees Celsius, succinic acid and methyl alcohol are after reactor (1) reaction, generate dimethyl succinate and water, dimethyl succinate is released at reactor (1) below products export, water and unreacted methyl alcohol are respectively by curved gas phase pipe (2), chuck (3), rectifying is carried out in the centre that U-shaped gas phase pipe (4) enters bead tube (5), because the middle and lower part of bead tube (5) is passed chuck (3) and is sleeved in chuck (3), heat in chuck (3) when too many (shortage of heat or can install well heater or water cooler additional) can be made full use of, water is released from the bottom rising pipe of bead tube (5), methyl alcohol joins reactor (1) from the top of bead tube (5) and recycles after supercooler (6) cooling.
Dimethyl succinate production method, be raw material by succinic acid and methyl alcohol, reinforcing body catalyzer is continuous pre-esterification and continuous catalyzing rectifying in reactor (1), after succinic acid and methyl alcohol react, dimethyl succinate is released at reactor (1) below products export, water and unreacted methyl alcohol are respectively by curved gas phase pipe (2), chuck (3), rectifying is carried out in the centre that U-shaped gas phase pipe (4) enters bead tube (5), water is released from the bottom rising pipe of bead tube (5), methyl alcohol joins reactor (1) from the top of bead tube (5) and recycles after supercooler (6) cooling.
Described solid catalyst is ion exchange resin type catalyzer, is preferably strong-acid ion exchange resin type catalyzer.
The invention energy usage is few, process operations is simple.
Accompanying drawing explanation
Fig. 1: the invention structural representation.
Embodiment:
A kind of dimethyl succinate produces special purpose device, comprise reactor (1), curved gas phase pipe (2), chuck (3), U-shaped gas phase pipe (4), bead tube (5), water cooler (6), there is individual products export reactor (1) below, reactor (1) top connects is equipped with curved gas phase pipe (2), the connection of curved gas phase pipe (2) is equipped with chuck (3), chuck (3) connects one that U-shaped gas phase pipe (4) is housed, the other end of U-shaped gas phase pipe (4) connects the centre being contained in bead tube (5), the bottom of bead tube (5) connects is equipped with rising pipe, the middle and lower part of bead tube (5) is passed chuck (3) and is sleeved in chuck (3), the top of bead tube (5) connects one that water cooler (6) is housed, the other end of water cooler (6) is connected with reactor (1) top by pipeline.
It is that raw material, the continuous pre-esterification of reinforcing body catalyzer and continuous catalyzing rectifying combination process synthesize that our existing dimethyl succinate is produced by succinic acid and methyl alcohol.
Principle of work: methyl alcohol, the boiling point of dimethyl succinate and water is respectively about 68, about 196, 100 degrees Celsius, succinic acid and methyl alcohol are after reactor (1) reaction, generate dimethyl succinate and water, dimethyl succinate is released at reactor (1) below products export, water and unreacted methyl alcohol are respectively by curved gas phase pipe (2), chuck (3), rectifying is carried out in the centre that U-shaped gas phase pipe (4) enters bead tube (5), because the middle and lower part of bead tube (5) is passed chuck (3) and is sleeved in chuck (3), heat in chuck (3) when too many (shortage of heat or can install well heater or water cooler additional) can be made full use of, water is released from the bottom rising pipe of bead tube (5), methyl alcohol joins reactor (1) from the top of bead tube (5) and recycles after supercooler (6) cooling.
Dimethyl succinate production method, be raw material by succinic acid and methyl alcohol, reinforcing body catalyzer is continuous pre-esterification and continuous catalyzing rectifying in reactor (1), after succinic acid and methyl alcohol react, dimethyl succinate is released at reactor (1) below products export, water and unreacted methyl alcohol are respectively by curved gas phase pipe (2), chuck (3), rectifying is carried out in the centre that U-shaped gas phase pipe (4) enters bead tube (5), water is released from the bottom rising pipe of bead tube (5), methyl alcohol joins reactor (1) from the top of bead tube (5) and recycles after supercooler (6) cooling.
Described solid catalyst is ion exchange resin type catalyzer, is preferably strong-acid ion exchange resin type catalyzer.
The invention energy usage is few, process operations is simple.
Claims (1)
1. a dimethyl succinate produces special purpose device, it is characterized in that, comprise reactor (1), curved gas phase pipe (2), chuck (3), U-shaped gas phase pipe (4), bead tube (5), water cooler (6), there is individual products export reactor (1) below, reactor (1) top connects is equipped with curved gas phase pipe (2), the connection of curved gas phase pipe (2) is equipped with chuck (3), chuck (3) connects one that U-shaped gas phase pipe (4) is housed, the other end of U-shaped gas phase pipe (4) connects the centre being contained in bead tube (5), the bottom of bead tube (5) connects is equipped with rising pipe, the middle and lower part of bead tube (5) is passed chuck (3) and is sleeved in chuck (3), the top of bead tube (5) connects one that water cooler (6) is housed, the other end of water cooler (6) is connected with reactor (1) top by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858295.1U CN204325198U (en) | 2014-12-30 | 2014-12-30 | Dimethyl succinate produces special purpose device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858295.1U CN204325198U (en) | 2014-12-30 | 2014-12-30 | Dimethyl succinate produces special purpose device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204325198U true CN204325198U (en) | 2015-05-13 |
Family
ID=53161577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420858295.1U Withdrawn - After Issue CN204325198U (en) | 2014-12-30 | 2014-12-30 | Dimethyl succinate produces special purpose device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204325198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447309A (en) * | 2014-12-30 | 2015-03-25 | 浙江永泉化学有限公司 | Special device for dimethyl succinate and production method thereof |
-
2014
- 2014-12-30 CN CN201420858295.1U patent/CN204325198U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447309A (en) * | 2014-12-30 | 2015-03-25 | 浙江永泉化学有限公司 | Special device for dimethyl succinate and production method thereof |
| CN104447309B (en) * | 2014-12-30 | 2016-03-30 | 浙江永泉化学有限公司 | Dimethyl succinate produces special purpose device and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150513 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |