CN204342710U - A kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO) - Google Patents
A kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO) Download PDFInfo
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- CN204342710U CN204342710U CN201420402420.8U CN201420402420U CN204342710U CN 204342710 U CN204342710 U CN 204342710U CN 201420402420 U CN201420402420 U CN 201420402420U CN 204342710 U CN204342710 U CN 204342710U
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Abstract
The utility model discloses a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), comprise one-level feed preheater, secondary raw materials preheater, one-level pressurizing and dehydrating tower, scraper evaporator, secondary dehydration tower, product DMSO treating tower.It is characterized in that: one-level pressurizing and dehydrating column overhead steam is as the thermal source of scraper evaporator and raw material secondary preheater; Charging at the bottom of product DMSO treating tower tower is secondary dehydration tower side take-off, and overhead vapours is as raw material one-level preheater thermal source.The utility model is from production reality, and the equipment that have devised is simple, easy to operate, invest less DMSO recovery system.One-level pressurizing and dehydrating tower and scraper evaporator and raw material secondary preheater carry out thermal coupling in addition, and product DMSO treating tower overhead vapours does the thermal source of raw material one-level preheater, and charging at the bottom of DMSO treating tower tower is secondary dehydration tower side take-off, has saved energy consumption.Whole technical process is reasonable, and level of automation is high.
Description
Technical field
The utility model relates to a kind of technical field of thermal coupling rectifying recycling design, particularly relate to a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO).
Background technology
Dimethyl sulfoxide (DMSO) (Dimethyl sulfoxide or DMSO), colourless liquid, be a kind of important organic chemical industry and polar aprotic solvent, because DMSO is to the solvent effect of many chemical reactions and the dissolution characteristics to many materials, be described as " menstruum universale ".DMSO is widely used as solvent and reaction reagent, particularly make process solvent and the solvent that reels off raw silk from cocoons in acrylonitrile polymerization reaction, make urethane synthesis and the solvent that reels off raw silk from cocoons, make the synthetic of polymeric amide, polyimide and polysulfone resin, and the solvent etc. of aromatic hydrocarbons, Butadiene Extraction solvent and synthesis cloflucarban.In addition, DMSO has extremely strong perviousness, contributes to medicine and permeates to human body, and therefore it have also been obtained and applies widely on medicine industry.To sum up, recovery, purifying DMSO have important Practical Benefit and environmental benefit.
Current document and patent report about reclaiming, the many employings of method of purifying DMSO be the method for conventional three-tower rectification, there is the deficiency of the aspects such as facility investment is large, energy consumption is large in the method.Therefore, reduce facility investment and reduce energy consumption, thus improving existing recovery method, becoming the key of recovery, purifying DMSO research.
Summary of the invention
In order to overcome the deficiency of above-mentioned existing conventional three-tower rectification technology, the utility model adopts rectified heat coupling technique for the mixture of the DMSO that industrial production produces and water, provides the device that a kind of recovery, the good stability of purifying DMSO and level of automation are high.
The utility model is from production reality, the technical scheme adopted is: a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), this device comprises raw material one-level preheater, raw material secondary preheater, one-level pressurizing and dehydrating tower, scraper evaporator, secondary dehydration tower, product DMSO treating tower.The feature of this retrieving arrangement is: be provided with reboiler at the bottom of one-level pressurizing and dehydrating tower and secondary dehydration tower tower; One-level pressurizing and dehydrating column overhead steam is as scraper evaporator thermal source; Scraper evaporator connects raw material secondary preheater; Secondary dehydration tower is provided with overhead condenser, and condenser is connected with return tank; Charging at the bottom of product DMSO treating tower tower is secondary dehydration tower side take-off, and overhead vapours is as raw material one-level preheater; One-level pressurizing and dehydrating tower and secondary dehydration tower share a water pot.
Described a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), be described as follows:
1) stock liquid squeezes into one-level pressurizing and dehydrating tower (1) through raw material one-level preheater (12) and raw material secondary preheater (3) preheating; 2) reboiler (2) is provided with at the bottom of one-level pressurizing and dehydrating tower (1) tower, tower reactor discharging enters separator (6), overhead vapours discharging pipeline is connected with scraper evaporator (5), incoming stock secondary preheater (3) after scraper evaporator (5), raw material secondary preheater (3) is connected with the return tank (4) of one-level pressurizing and dehydrating tower (1), return tank (4) is provided with two outlets, and one connects one-level pressurizing and dehydrating tower (1) tower top and refluxes, and another connects water pot; Scraper evaporator (5) is provided with separator (6), and scraper evaporator (5) overhead vapor enters separator (6), carries out vapor-liquid separation, and the connection of vapour phase pipeline enters secondary dehydration tower (7) feeding line, and liquid phase circulation gets back to scraper evaporator (5); 3) secondary dehydration tower (7) is provided with tower bottom reboiler (8), tower top is provided with condenser (9), condenser (9) outlet connects the return tank (10) of secondary dehydration tower (7), return tank (10) is provided with two outlets, one connects secondary dehydration tower (7) tower top and refluxes, another connects water pot, and secondary dehydration tower (7) tower body is provided with lateral line discharging position, and lateral line discharging position connects DMSO treating tower (11); 4) discharging pipeline at the bottom of DMSO treating tower (11) tower connects product DMSO holding tank, overhead vapours discharging pipeline connects raw material one-level preheater (12), raw material one-level preheater (12) connects the return tank (13) of DMSO treating tower (11), return tank (13) is provided with two outlets, one connects DMSO treating tower (11) tower top and refluxes, and another connects product DMSO holding tank.
Described raw material is that DMSO content is 10%-25% not containing superpolymer.
The part that described two-stage feed preheater and the condenser of secondary dehydration tower contact with material is stainless steel, and rest part side adopts carbon steel material.
The column internals of three described towers is High Efficient Standard Packing composition.
Described one-level pressurizing and dehydrating tower, secondary dehydration tower and product DMSO treating tower share a water pot.
The thermal source of described scraper evaporator is the overhead vapours of one-level pressurizing and dehydrating tower; The thermal source of described one-level feed preheater is the overhead vapours of DMSO treating tower, and the thermal source of described secondary raw materials preheater is through the one-level pressurizing and dehydrating column overhead steam material stream of scraper evaporator.
Described DMSO treating tower does not establish reboiler, and only containing rectifying section, charging is the steam of secondary dehydration tower side take-off.
Compared with prior art, the utility model from production reality, and has taken into full account physico-chemical property and the stability of DMSO, conducts in-depth research exploration, obtain following beneficial effect to its recovery, purifying process:
1) the utility model considers the physico-chemical property of DMSO, and the part contacted with DMSO in whole separation purifying technique selects stainless steel, and then solves separation purifying technique etching problem, ensure that the quality of product and the stable of equipment; 2) the utility model is from energy consumption angle, adopt the form of thermal coupling, one-level pressurizing and dehydrating column overhead steam had both been done the thermal source of scraper evaporator, and also done the thermal source of raw material secondary preheater, product DMSO treating tower overhead vapours does the thermal source of raw material one-level preheater; Charging at the bottom of DMSO treating tower tower is secondary dehydration tower side take-off, does not arrange reboiler, has saved energy consumption; 3) the utility model DMSO stability is set out, and by scraper evaporator, secondary dehydration tower, product DMSO treating tower negative-pressure operation, and adds stablizer in the feed, efficiently solves its thermolysis, knot carbon phenomenon, and then improves the yield of DMSO; 4) the utility model adopts lateral line discharging, effectively reduces facility investment.
The utility model, can efficient recovery, purifying DMSO by reasonably design.Whole technique have result simple, easy to operate, invest the advantages such as less, energy efficient, be conducive to Reducing Cost in Enterprises, increase economic efficiency, therefore, the process program that the utility model proposes is that a kind of efficiently feasible DMSO reclaims, purification devices.Use this device, make the purity of the DMSO reclaimed reach more than 99.9%.
Accompanying drawing explanation
Fig. 1 is recovery, the purification devices schematic diagram of DMSO.
Embodiment
Below in conjunction with accompanying drawing and concrete case study on implementation, the utility model is described further:
As shown in Figure 1, the utility model provide a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO) comprises one-level pressurizing and dehydrating tower, scraper evaporator, secondary dehydration tower, product DMSO treating tower.It is characterized in that stock liquid is added with stablizer, squeeze into one-level pressurizing and dehydrating tower (1) through two-stage preheating; Reboiler (2) is provided with at the bottom of one-level pressurizing and dehydrating tower (1) tower, tower reactor discharging enters separator (6), overhead vapours discharging pipeline is connected with scraper evaporator (5), incoming stock secondary preheater (3) after scraper evaporator (5), raw material secondary preheater (3) is connected with the return tank (4) of one-level pressurizing and dehydrating tower (1), return tank (4) is provided with two outlets, and one connects one-level pressurizing and dehydrating tower (1) tower top and refluxes, and another connects water pot; Scraper evaporator (5) is provided with separator (6), and scraper evaporator (5) overhead vapor enters separator, carries out vapor-liquid separation, and vapor delivery line connection enters secondary dehydration tower (7) feeding line, and liquid phase circulation gets back to scraper evaporator (5); Secondary dehydration tower (7) is provided with tower bottom reboiler (8), tower top is provided with condenser (9), condenser (9) outlet connects the return tank (10) of secondary dehydration tower (7), return tank (10) is provided with two outlets, one connects secondary dehydration tower (7) tower top and refluxes, another connects water pot, and secondary dehydration tower (7) tower body is provided with lateral line discharging position, and lateral line discharging position connects DMSO treating tower (11); Discharging at the bottom of DMSO treating tower (11) tower is circulated back to secondary dehydration tower (7), overhead vapours discharging pipeline connects raw material one-level preheater (12), raw material one-level preheater (12) connects the return tank (13) of DMSO treating tower (11), return tank (13) is provided with two outlets, one connects DMSO treating tower (11) tower top and refluxes, and another connects product DMSO holding tank.
Concrete operation method is as follows:
Be added with the raw material of stablizer successively through raw material one-level preheater (12) and raw material secondary preheater (3), one-level pressurizing and dehydrating tower (1) middle part charging is squeezed into through feedstock pump, one-level pressurizing and dehydrating tower (1) tower reactor discharging squeezes into separator (6) through pump, in separator (6), vapour phase enters secondary dehydration tower (7), liquid phase circulation is in scraper evaporator (5), one-level pressurizing and dehydrating tower (1) vapor stream of top of the tower plume through scraper evaporator (5) as its thermal source, then this stream stock gets back to part conduct backflow in the return tank (4) of one-level pressurizing and dehydrating tower (1) through raw material secondary evaporimeter (3), a part flows into water pot, secondary dehydration tower (7) tower reactor discharging enters high boiling material except fixing apparatus system, overhead vapours enters return tank (10) part for secondary dehydration tower (7) as backflow through condenser (9) condensation, a part flows into water pot, and secondary dehydration tower (7) side take-off material enters DMSO treating tower (11) tower reactor, discharging at the bottom of DMSO treating tower (11) tower is circulated back to secondary dehydration tower (7), overhead vapours enters return tank (13) through raw material one-level preheater (12) condensation, return tank (13) is provided with two outlets, one connects DMSO treating tower (11) tower top and refluxes, and another connects product DMSO holding tank.
Content of the present utility model is not limited in operation scheme described above, and it can extend to association area, and person skilled can change above-mentioned specific embodiments and combine in content of the present utility model and scope, proposes new scheme.It needs to be noted that proposed scheme all belongs to this enforcement novel.
Claims (4)
1. one kind for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), this device comprises raw material one-level preheater, raw material secondary preheater, one-level pressurizing and dehydrating tower, scraper evaporator, secondary dehydration tower, product DMSO treating tower, is characterised in that: be provided with reboiler at the bottom of one-level pressurizing and dehydrating tower and secondary dehydration tower tower; One-level pressurizing and dehydrating column overhead steam is as scraper evaporator thermal source; Scraper evaporator connects raw material secondary preheater; Secondary dehydration tower is provided with overhead condenser, and condenser is connected with return tank; Charging at the bottom of product DMSO treating tower tower is secondary dehydration tower side take-off, and overhead vapours is as raw material one-level preheater thermal source.
2. according to claim 1 a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), it is characterized in that stock liquid squeezes into one-level pressurizing and dehydrating tower through raw material one-level preheater and raw material secondary preheater.
3. according to claim 1 and 2 a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), it is characterized in that one-level pressurizing and dehydrating tower and scraper evaporator and raw material secondary preheater carry out thermal coupling, one-level pressurizing and dehydrating column overhead steam had both done the thermal source of scraper evaporator, also did the thermal source of raw material secondary preheater.
4. according to claim 1 and 2 a kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO), it is characterized in that product DMSO treating tower and raw material one-level preheater carry out thermal coupling, product DMSO treating tower overhead vapours does the thermal source of raw material one-level preheater.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402420.8U CN204342710U (en) | 2014-07-21 | 2014-07-21 | A kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO) |
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| CN201420402420.8U CN204342710U (en) | 2014-07-21 | 2014-07-21 | A kind of for reclaiming, the device of purifying dimethyl sulfoxide (DMSO) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018189969A1 (en) * | 2017-04-12 | 2018-10-18 | 東レ・ファインケミカル株式会社 | Method for distilling dimethylsulfoxide and multistage distillation column |
| CN108840495A (en) * | 2018-05-13 | 2018-11-20 | 四川久远化工技术有限公司 | A kind of stripping waste liquor method of purification |
-
2014
- 2014-07-21 CN CN201420402420.8U patent/CN204342710U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018189969A1 (en) * | 2017-04-12 | 2018-10-18 | 東レ・ファインケミカル株式会社 | Method for distilling dimethylsulfoxide and multistage distillation column |
| CN108686397A (en) * | 2017-04-12 | 2018-10-23 | 东丽精细化工株式会社 | Distill the method and multisection type destilling tower of dimethyl sulfoxide |
| KR20190132344A (en) * | 2017-04-12 | 2019-11-27 | 도오레 화인케미칼 가부시키가이샤 | Distillation of dimethyl sulfoxide, and multistage distillation column |
| JPWO2018189969A1 (en) * | 2017-04-12 | 2020-02-27 | 東レ・ファインケミカル株式会社 | Method for distilling dimethyl sulfoxide, and multi-stage distillation column |
| US11111211B2 (en) | 2017-04-12 | 2021-09-07 | Toray Fine Chemicals Co., Ltd. | Method of distilling dimethyl sulfoxide and multistage distillation tower |
| CN108686397B (en) * | 2017-04-12 | 2021-10-26 | 东丽精细化工株式会社 | Method for distilling dimethyl sulfoxide and multi-section distillation tower |
| JP7082763B2 (en) | 2017-04-12 | 2022-06-09 | 東レ・ファインケミカル株式会社 | A method for distilling dimethyl sulfoxide and a multi-stage distillation column. |
| KR102469913B1 (en) * | 2017-04-12 | 2022-11-23 | 도오레 화인케미칼 가부시키가이샤 | Method for distilling dimethyl sulfoxide, and multi-stage distillation column |
| TWI802566B (en) * | 2017-04-12 | 2023-05-21 | 日商東麗精密化學股份有限公司 | Method for distilling dimethyl sulfoxide, and multistage distillation column |
| CN108840495A (en) * | 2018-05-13 | 2018-11-20 | 四川久远化工技术有限公司 | A kind of stripping waste liquor method of purification |
| CN108840495B (en) * | 2018-05-13 | 2020-12-22 | 四川久远化工技术有限公司 | Method for purifying stripping waste liquid |
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| CP01 | Change in the name or title of a patent holder |
Address after: 300384 Alex Hua Tian Road, Nankai District, Nankai District, Tianjin, No. 2 International Entrepreneurship Center 4023 Patentee after: Tianjin Zhongfu environmental Polytron Technologies Inc Address before: 300384 Alex Hua Tian Road, Nankai District, Nankai District, Tianjin, No. 2 International Entrepreneurship Center 4023 Patentee before: TIANJIN ZHONGFU ENGINEERING TECHNOLOGY CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20200721 |