CN104307211A - Process and system for separating isoprene rubber latex degassing gas - Google Patents
Process and system for separating isoprene rubber latex degassing gas Download PDFInfo
- Publication number
- CN104307211A CN104307211A CN201410550992.5A CN201410550992A CN104307211A CN 104307211 A CN104307211 A CN 104307211A CN 201410550992 A CN201410550992 A CN 201410550992A CN 104307211 A CN104307211 A CN 104307211A
- Authority
- CN
- China
- Prior art keywords
- isoprene rubber
- rubber latex
- gas
- degassed
- cooling
- Prior art date
- 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- Withdrawn
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention relates to a process and a system for separating isoprene rubber latex degassing gas and belongs to the technical field of isoprene rubber monomer and solvent recovery. The process comprises the following steps: (1) removing rubber materials entrained in the degassing gas; (2) cooling the gas treated in the step (1) until the temperature reaches 60 DEG C, thereby completely condensing the gas into liquid; (3) cooling the condensed liquid to 45 DEG C; and (4) separating hexane, isoprene and water of the liquid treated in the step (3). The system comprises a degassing kettle, a kettle top filter and a separation tower, wherein the kettle top filter is connected with the top of the degassing kettle and a kettle top condenser by use of pipelines; the kettle top condenser is connected with a crude solvent oil cooler by use of a pipeline; the crude solvent oil cooler is connected with the separation tower by use of a pipeline. The process and the system for separating the isoprene rubber latex degassing gas have the advantages that due to split condensation and cooling, namely cooling after condensation, the liquid blockage phenomenon is avoided, the consumption of cooling water is reduced, the heat exchange efficiency is improved, the equipment investment is reduced, and therefore, the production cost of isoprene rubber is reduced.
Description
Background technology
The present invention relates to the degassed gas separating technology of a kind of isoprene rubber latex and system, belong to isoprene rubber monomer and solvent recovery technical field.
Background technology
Isoprene rubber device uses rare earth neodymium series catalysts, and take isoprene as monomer, the hexane of 60 ﹪ is solvent, and adopt multi-floating bodies, the production technology of continuous polymerization produces the isoprene rubber of high-cis.Isoprene is the comonomer of isoprene rubber, and hexane is solvent for polymerization, and monomer whose conversion ratio is generally more than 95%.
Containing 80% in the gas that isoprene rubber latex is degassed is hexane, and 19% is water, and 1% is isoprene monomer.Latex is passed into steam and carries out heating stripping in degassed still, thus hexane and unreacted monomer is all removed, and the gas removed enters a condenser and carries out condensation, cooling, and condensate liquid is transported to knockout tower again and carries out separation hexane, isoprene and water.
This operating mode adopts air cooling apparatus, and its equipment investment is large, and clears up because equipment blocks up glue difficulty, and adopt integral type condensation, cooling tube type cold exchange device, its equipment volume is large, and heat exchange efficiency is low.
Due to the vaporization of solvent hexane and monomer in degasification process, the gas flow of generation is large, adopts recirculated water to carry out disposable condensation to it, cools and will need larger cooling water or heat transmission equipment.And due to medium hexane, isoprene different with the condensation point of water, condensation in same condenser, cooling can produce liquid resistance, can cause the waste of cooling water thus.
Summary of the invention
According to above the deficiencies in the prior art, technical problem to be solved by this invention is: provide a kind of isoprene rubber latex degassed gas separating technology, avoid equipment to block up glue, reduce consumption and the equipment investment of cooling water, reduces the production cost of isoprene rubber.
The present invention also provides a kind of degassed gas separation system of isoprene rubber latex realizing above-mentioned technique simultaneously.
The degassed gas separating technology of isoprene rubber latex of the present invention, comprises step: 1) remove the micelle that degassed gas is carried secretly; 2) by step 1) after gas be cooled to 60 DEG C, be all condensed into liquid; 3) condensate liquid is cooled to 45 DEG C; 4) by step 3) after liquid carries out hexane, isoprene is separated with water.
The degassed gas separation system of isoprene rubber latex, comprise degassed still, still top filter, knockout tower, still top filter connects degassed still top by pipeline, still top filter connects still top condenser by pipeline, still top condenser connects thick solvent naphtha cooler by pipeline, and thick solvent naphtha cooler connects knockout tower by pipeline.
Described still top condenser connects cooling water circulating device.
Described still top condenser is vertical installation, effectively avoids flooding.
Described thick solvent naphtha cooler connects cooling water circulating device.
Compared with prior art, the beneficial effect that the present invention has is:
(1) before degassed condensation of gas, remove by still top filter the micelle that gas carries secretly, thus avoid micelle to block heat transmission equipment, the problem of solution equipment difficult cleaning after blocking up glue.
(2) adopt split type condensation, cooling settings, cool again after first condensation, avoid flooding occurs, reduce the consumption of cooling water, improve heat exchange efficiency.
(3) feature of condensation is that thermic load is large, the cooling water inflow needed is large, and required heat exchange area is relatively little, heat of cooling load is little, but needs heat exchange area relatively large, compared to traditional integrated device, still top condenser, thick solvent naphtha cooler are arranged according to the feature of condensation, cooling respectively, reduce the floor space of equipment, reduce equipment investment, thus reduce the production cost of isoprene rubber, increase the economic benefit of device.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1, steam; 2, latex; 3, degassed still; 4, still top filter; 5, still top condenser; 6, thick solvent naphtha cooler; 7, knockout tower.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further.
As shown in Figure 1, the degassed gas separation system of isoprene rubber latex comprises degassed still 3, still top filter 4, knockout tower 7, still top filter 4 connects degassed still 3 top by pipeline, degassed still 3 passes into latex 2, and pass into steam 1 and carry out heating stripping, still top filter 4 connects still top condenser 5 by pipeline, and still top condenser 5 connects thick solvent naphtha cooler 6 by pipeline, and thick solvent naphtha cooler 6 connects knockout tower 7 by pipeline.
Wherein, still top condenser 5 is vertical installation and connects cooling water circulating device; Thick solvent naphtha cooler 6 connects cooling water circulating device.
Each device prevailing operating conditions:
Still top filter 4: operating pressure: 0.02MpaG; Operating temperature: 110 DEG C; Filter screen 20 order.
Still top condenser 5: operating pressure: 0.02MpaG; Operating temperature: 150 DEG C; Heat exchange area F=160M
2.
Thick solvent naphtha cooler 6: operating pressure: 0.02MpaG; Operating temperature: 60 DEG C; Heat exchange area F=270M
2.
Degassed gas separating technology process, comprises the following steps:
1) latex is passed into steam and carries out heating stripping in degassed still, thus hexane and unreacted monomer is all removed, and forms degassed gas;
2) remove by still top filter 4 micelle that degassed gas carries secretly;
3) gas removing micelle is passed into still top condenser 5 and be cooled to 60 DEG C, be all condensed into liquid;
4) condensate liquid is passed into thick solvent naphtha cooler and be cooled to 45 DEG C;
5) cooled liquid is passed into knockout tower 7 carries out hexane, isoprene is separated with water.
Claims (5)
1. the degassed gas separating technology of isoprene rubber latex, comprises step:
1) micelle that degassed gas is carried secretly is removed;
2) by step 1) after gas be cooled to 60 DEG C, be all condensed into liquid;
3) condensate liquid is cooled to 45 DEG C;
4) by step 3) after liquid carries out hexane, isoprene is separated with water.
2. the degassed gas separation system of isoprene rubber latex, comprise degassed still (3), still top filter (4), knockout tower (7), still top filter (4) connects degassed still (3) top by pipeline, it is characterized in that: still top filter (4) connects still top condenser (5) by pipeline, still top condenser (5) connects thick solvent naphtha cooler (6) by pipeline, and thick solvent naphtha cooler (6) connects knockout tower (7) by pipeline.
3. the degassed gas separation system of isoprene rubber latex according to claim 2, is characterized in that: described still top condenser (5) connects cooling water circulating device.
4. the degassed gas separation system of isoprene rubber latex according to claim 2, is characterized in that: described still top condenser (5) is in vertical installation.
5. the degassed gas separation system of isoprene rubber latex according to claim 2, is characterized in that: described thick solvent naphtha cooler (6) connects cooling water circulating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550992.5A CN104307211A (en) | 2014-10-17 | 2014-10-17 | Process and system for separating isoprene rubber latex degassing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550992.5A CN104307211A (en) | 2014-10-17 | 2014-10-17 | Process and system for separating isoprene rubber latex degassing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104307211A true CN104307211A (en) | 2015-01-28 |
Family
ID=52362605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410550992.5A Withdrawn CN104307211A (en) | 2014-10-17 | 2014-10-17 | Process and system for separating isoprene rubber latex degassing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104307211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786187A (en) * | 2018-06-12 | 2018-11-13 | 帕提古丽·奥布力 | A kind of isoprene rubber latex degassing gas separation system |
| CN110860101A (en) * | 2019-12-11 | 2020-03-06 | 淄博鲁华泓锦新材料股份有限公司 | Method for removing organic solvent in polyisoprene latex |
-
2014
- 2014-10-17 CN CN201410550992.5A patent/CN104307211A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786187A (en) * | 2018-06-12 | 2018-11-13 | 帕提古丽·奥布力 | A kind of isoprene rubber latex degassing gas separation system |
| CN110860101A (en) * | 2019-12-11 | 2020-03-06 | 淄博鲁华泓锦新材料股份有限公司 | Method for removing organic solvent in polyisoprene latex |
| CN110860101B (en) * | 2019-12-11 | 2024-02-13 | 淄博鲁华泓锦新材料集团股份有限公司 | Method for removing organic solvent in polyisoprene latex |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104353258B (en) | Subtract top pumped vacuum systems and technique | |
| CN105036507A (en) | Pyrolysis oil-gas-water synchronous condensing and oil-water separation recovery system and method | |
| CN106244248B (en) | Coke oven gas cooling-waste heat recovery device and process | |
| CN201475980U (en) | Exhaust steam recovering and recycling system of deaeration tower | |
| CN106679462A (en) | Horizontal shell-tube condenser | |
| CN204151180U (en) | A kind of efficient mechanical vapor recompression sea water desalinating plant | |
| CN104307211A (en) | Process and system for separating isoprene rubber latex degassing gas | |
| KR102166467B1 (en) | Apparatus for separatiing solvent and method thereof | |
| CN102796571B (en) | System for producing light benzene by performing negative pressure debenzolization on rich oil | |
| CN107906505B (en) | Method and system for deeply recycling steam condensate | |
| CN201409440Y (en) | Vacuum cooling system | |
| CN205084440U (en) | Solvent distilling Recycle condensing system | |
| CN204147597U (en) | The degassed gas separation system of isoprene rubber latex | |
| CN203239642U (en) | Vacuum pump working water cooling device | |
| CN116751613A (en) | Energy-saving negative pressure debenzolization process and system | |
| CN203030013U (en) | Solvent recovery and water removal device for sucralose production | |
| CN204981538U (en) | Synchronous condensation of pyrolysis oil gas water and water oil separating recovery system | |
| CN111333480A (en) | Butadiene refining method and device | |
| CN204319802U (en) | Subtract top pumped vacuum systems | |
| CN107062927B (en) | Multistage condenser reverse cooling noncondensable gas system for sea water desalination and process thereof | |
| CN204024737U (en) | Distillation tower top complementary energy is converted into the device of electric energy | |
| CN203487061U (en) | Methanol recycling device for biodiesel production process | |
| CN206626979U (en) | A kind of desalinization inversely cools down fixed gas system with multistage condenser | |
| CN217323987U (en) | Two-tower type debenzolization system | |
| CN105936562A (en) | Energy-saving method and device for treating coal chemical industry phenol ammonia wastewater by thermal coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150128 |