CN203108245U - Methyl acetate rectifying device - Google Patents
Methyl acetate rectifying device Download PDFInfo
- Publication number
- CN203108245U CN203108245U CN 201320113966 CN201320113966U CN203108245U CN 203108245 U CN203108245 U CN 203108245U CN 201320113966 CN201320113966 CN 201320113966 CN 201320113966 U CN201320113966 U CN 201320113966U CN 203108245 U CN203108245 U CN 203108245U
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- tower
- methyl esters
- methyl ester
- methyl
- pump
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Abstract
The utility model relates to a methyl acetate rectifying device, which comprises a methyl ester extracting tower and a methyl ester extracting-concentrating tower; the bottom of the methyl ester extracting-concentrating tower is connected with a methyl ester extracting tower reboiler connected with a methyl ester extracting tower kettle outlet pump, the top of the methyl ester extracting-concentrating tower is respectively connected with a methyl ester extracting tower condenser and a methyl ester extracting tower distilling-out pump, the methyl ester extracting tower condenser is connected with a methyl ester extracting tower distilling-out groove connected with the methyl ester extracting tower distilling-out pump, the methyl ester extracting tower distilling-out pump is connected with the methyl ester extracting-concentrating tower of which the bottom is connected with a methyl ester extracting-concentrating tower reboiler, and the methyl ester extracting-concentrating tower reboiler is connected with a methyl ester extracting-concentrating tower kettle outlet pump, and the top of the methyl ester extracting-concentrating tower is connected with a methyl ester extracting-concentrating tower condenser and a methyl ester extracting-concentrating tower distilling-out pump respectively. The methyl acetate rectifying device has the beneficial effects of no need of vacuum operation, small equipment investment, small energy consumption and loss, and capability of obviously improving the purity and the producing efficiency of the methyl acetate product.
Description
Technical field
The utility model relates to a kind of methyl acetate rectifier unit.
Background technology
Methyl acetate is a kind of good environment-friendly type solvent, because good characteristics such as its high-performance, environmental protection, moderate cost, progressively obtain approval and a large amount of use the in market, downstream, the relation between supply and demand of present domestic methyl acetate product is that drug on the market, market competition is very fierce, highly purified produce market relatively is in great demand, and the industry of application is constantly enlarging development, and the ability of stronger alternative acetone, butanone and ethyl acetate is arranged in adhesive, paint, leather, pharmaceuticals industry as solvent.But the product quality of producing under the existing equipment condition is very unstable, and purity does not reach the requirement more than 99.9%, inefficiency.Because former technology, equipment design make methyl acetate (rectifying is less demanding), can only reach 90 ± 2%
Only be used for hydrolysis, can not be used for highly purified produce market, so the process units efficient of production methyl acetate is low, the not high shakiness of product purity causes production efficiency to descend, and product quality does not reach user's requirement.
The utility model content
The purpose of this utility model provides a kind of methyl acetate rectifier unit, the not high shakiness of product purity of methyl acetate is produced in solution in the methyl acetate manufacture process, product quality does not reach problems such as customer requirements, process units efficient be low, can significantly improve methyl acetate product purity, production efficiency.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of methyl acetate rectifier unit, comprise methyl esters extraction tower and methyl esters concentration tower, the bottom of methyl esters concentration tower is connected with methyl esters extraction tower reboiler, methyl esters extraction tower reboiler goes out pump with methyl esters extraction tower reactor and is connected, the top of methyl esters concentration tower distillates pump with methyl esters extraction tower condenser with the methyl esters extraction tower respectively and is connected, methyl esters extraction tower condenser distillates groove with the methyl esters extraction tower and is connected, the methyl esters extraction tower distillates groove and distillates pump with the methyl esters extraction tower and be connected, the methyl esters extraction tower distillates pump and is connected with the methyl esters concentration tower, the bottom of methyl esters concentration tower is connected with defective smart methyl esters groove with methyl esters concentration tower reboiler, methyl esters concentration tower reboiler goes out pump with methyl esters concentrate tower reactor and is connected, the top of methyl esters concentration tower distillates pump with methyl esters concentration tower condenser with the methyl esters concentration tower respectively and is connected, methyl esters concentration tower condenser distillates groove with the methyl esters concentration tower and is connected, and the methyl esters concentration tower distillates groove and distillates pump with the methyl esters concentration tower and be connected.
Further, described ester concentrate tower reactor goes out pump and is connected with the methyl esters extraction tower.
Further, described methyl esters concentration tower distillates pump and methyl esters extraction tower reactor and goes out pump and be connected.
The beneficial effects of the utility model are: need not to add with PVA and produce irrelevant material, also needing no vacuum operation of rectifying column, operating flexibility is the 50-110% of design load, equipment investment simultaneously is few, energy consumption, consume little; Significantly improve methyl acetate product purity, production efficiency.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of the described methyl acetate rectifier unit of the utility model embodiment.
Among the figure:
1, methyl esters extraction tower; 2, methyl esters concentration tower; 3, methyl esters extraction tower reboiler; 4, methyl esters extraction tower reactor goes out pump; 5, methyl esters extraction tower condenser; 6, the methyl esters extraction tower distillates pump; 7, the methyl esters extraction tower distillates groove; 8, methyl esters concentration tower reboiler; 9, methyl esters concentrate tower reactor goes out pump; 10, methyl esters concentration tower condenser; 11, the methyl esters concentration tower distillates pump; 12, the methyl esters concentration tower distillates groove; 13, defective smart methyl esters groove.
The specific embodiment
As shown in Figure 1, the described a kind of methyl acetate rectifier unit of the utility model embodiment, comprise methyl esters extraction tower 1 and methyl esters concentration tower 2, the bottom of methyl esters concentration tower 1 is connected with methyl esters extraction tower reboiler 3, methyl esters extraction tower reboiler 3 goes out pump 4 with methyl esters extraction tower reactor and is connected, the top of methyl esters concentration tower 1 distillates pump 6 with methyl esters extraction tower condenser 5 and methyl esters extraction tower respectively and is connected, methyl esters extraction tower condenser 5 distillates groove 7 with the methyl esters extraction tower and is connected, the methyl esters extraction tower distillates groove 7 and distillates pump 6 with the methyl esters extraction tower and be connected, the methyl esters extraction tower distillates pump 6 and is connected with methyl esters concentration tower 2, the bottom of methyl esters concentration tower 2 is connected with defective smart methyl esters groove 13 with methyl esters concentration tower reboiler 8, methyl esters concentration tower reboiler 8 goes out pump 9 with methyl esters concentrate tower reactor and is connected, ester concentrate tower reactor goes out pump 9 and is connected with methyl esters extraction tower 1, the top of methyl esters concentration tower 2 distillates pump 11 with methyl esters concentration tower condenser 10 and methyl esters concentration tower respectively and is connected, methyl esters concentration tower condenser 10 distillates groove 12 with the methyl esters concentration tower and is connected, the methyl esters concentration tower distillates groove 12 and distillates pump 11 with the methyl esters concentration tower and be connected, and the methyl esters concentration tower distillates pump 11 and goes out pump 4 with methyl esters extraction tower reactor and be connected.
During use, 3 pairs of methyl esters extraction tower reboilers reclaim two tower distillates, and are reinforced to the methyl acetate extraction tower, and cat head adds makees extractant from adopting acetic acid in the acetic acid rectifying column, and water, methyl alcohol and acetaldehyde are separated with methyl acetate; The condensation of gas that methyl esters extraction tower condenser 5 distillates the methyl esters extraction tower is liquid, the methyl esters extraction tower distillates groove 7 and collects thick methyl acetate under methyl esters extraction tower condenser condenses, and methyl acetate extraction cat head distillates that to distillate pump 6 through the methyl esters extraction tower reinforced toward the methyl acetate concentration towers; Methyl esters concentrate tower reactor goes out the pump 9 methyl esters concentration tower tower bottoms smart methyl esters storage tank of jar occasion lattice that is sent to after qualified to be analyzed, methyl esters concentration tower reboiler 8 extracts methyl acetate that cat head heats up in a steamer with methyl acetate and is heated into and enters methyl esters concentration tower 2 after the gas phase and separate, after methyl esters concentration tower 2 concentrates, methyl esters concentration tower 2 distillates and is sent to methyl acetate extraction tower reactor liquid pump entrance, go the acetic acid separated tower to handle with methyl acetate extraction tower bottoms, when the tower bottoms of methyl esters concentration tower 2 is defective, this tower bottoms is sent to defective smart methyl esters groove 13, the cat head of methyl esters concentration tower condenser 10 condensation methyl esters concentration towers 2 distillates condensate liquid, the methyl esters concentration tower distillates groove 13 and collects cat head through methyl esters concentration tower 2 and distillate methyl acetate mixing material under 10 condensations of methyl esters concentration tower condenser, and the methyl esters concentration tower distillates pump 11 the methyl acetate mixing material under 10 condensations of methyl esters concentration tower condenser is sent to methyl acetate extraction tower reactor liquid pump entrance.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, all drops within the protection domain of the present utility model.
Claims (3)
1. methyl acetate rectifier unit, comprise methyl esters extraction tower (1) and methyl esters concentration tower (2), it is characterized in that: the bottom of methyl esters concentration tower (1) is connected with methyl esters extraction tower reboiler (3), methyl esters extraction tower reboiler (3) goes out pump (4) with methyl esters extraction tower reactor and is connected, the top of methyl esters concentration tower (1) distillates pump (6) with methyl esters extraction tower condenser (5) and methyl esters extraction tower respectively and is connected, methyl esters extraction tower condenser (5) distillates groove (7) with the methyl esters extraction tower and is connected, the methyl esters extraction tower distillates groove (7) and distillates pump (6) with the methyl esters extraction tower and be connected, the methyl esters extraction tower distillates pump (6) and is connected with methyl esters concentration tower (2), the bottom of methyl esters concentration tower (2) is connected with defective smart methyl esters groove (13) with methyl esters concentration tower reboiler (8), methyl esters concentration tower reboiler (8) goes out pump (9) with methyl esters concentrate tower reactor and is connected, the top of methyl esters concentration tower (2) distillates pump (11) with methyl esters concentration tower condenser (10) and methyl esters concentration tower respectively and is connected, methyl esters concentration tower condenser (10) distillates groove (12) with the methyl esters concentration tower and is connected, and the methyl esters concentration tower distillates groove (12) and distillates pump (11) with the methyl esters concentration tower and be connected.
2. methyl acetate rectifier unit according to claim 1, it is characterized in that: described ester concentrate tower reactor goes out pump (9) and is connected with methyl esters extraction tower (1).
3. methyl acetate rectifier unit according to claim 2 is characterized in that: described methyl esters concentration tower distillates pump (11) and goes out pump (4) with methyl esters extraction tower reactor and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113966 CN203108245U (en) | 2013-03-14 | 2013-03-14 | Methyl acetate rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113966 CN203108245U (en) | 2013-03-14 | 2013-03-14 | Methyl acetate rectifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203108245U true CN203108245U (en) | 2013-08-07 |
Family
ID=48888625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320113966 Expired - Lifetime CN203108245U (en) | 2013-03-14 | 2013-03-14 | Methyl acetate rectifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203108245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619194A (en) * | 2020-12-29 | 2021-04-09 | 内蒙古双欣环保材料股份有限公司 | High-temperature hot water comprehensive utilization device of polyvinyl alcohol waste liquid recovery system |
-
2013
- 2013-03-14 CN CN 201320113966 patent/CN203108245U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619194A (en) * | 2020-12-29 | 2021-04-09 | 内蒙古双欣环保材料股份有限公司 | High-temperature hot water comprehensive utilization device of polyvinyl alcohol waste liquid recovery system |
| CN112619194B (en) * | 2020-12-29 | 2022-07-08 | 内蒙古双欣环保材料股份有限公司 | High-temperature hot water comprehensive utilization device of polyvinyl alcohol waste liquid recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |