CN108003378A - The separation method and device of polyethylene and toluene in polyvinyl-toluene solution - Google Patents
The separation method and device of polyethylene and toluene in polyvinyl-toluene solution Download PDFInfo
- Publication number
- CN108003378A CN108003378A CN201711294629.1A CN201711294629A CN108003378A CN 108003378 A CN108003378 A CN 108003378A CN 201711294629 A CN201711294629 A CN 201711294629A CN 108003378 A CN108003378 A CN 108003378A
- Authority
- CN
- China
- Prior art keywords
- tol
- toluene
- filter
- solution
- polyethylene
- 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.)
- Pending
Links
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 138
- -1 polyethylene Polymers 0.000 title claims abstract description 36
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 35
- 238000000926 separation method Methods 0.000 title claims abstract description 30
- 229920002102 polyvinyl toluene Polymers 0.000 title claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000004090 dissolution Methods 0.000 claims abstract description 9
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 20
- 239000000706 filtrate Substances 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 12
- 239000010409 thin film Substances 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000004571 lime Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Filtering Materials (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses polyethylene in polyvinyl-toluene solution and the separation method and device of toluene.PE/TOL solution is cooled to PE condensations by the separation method, then carries out press filtration separation, and putting into dissolution process after the filtering of TOL separating liquids uses, and press filtration obtains the residue that PE contents are more than 30%, and residue is evaporated separating treatment, realizes the separation of PE and TOL.The present invention to PE/TOL solution by carrying out appropriate cooling processing, the PE condensations in TOL are made to carry out press filtration separation again, TOL separating liquids can direct plunge into the use of dissolution process, lime scum uses after being evaporated separating treatment, PE contents can reach more than 30% in PE/TOL filter residues of the method for the present invention Jing Guo press filtration, and the dissolution of same 1 ton of PE can reduce the evaporation capacity of 30 tons of toluene, and not only production efficiency can improve, and energy conservation and environmental protection, suitable for industrialized production and application.
Description
Technical field
The invention belongs to polyethylene recovery technology field, and in particular to marine origin in a kind of low PE/PA6 islands woven fabric of cost
The separation method and device of polyethylene and toluene in component polyethylene toluene solution.
Background technology
In the production of microfiber synthetic leather, non-woven fabrics is made in common PE/PA6 blend staples dimension, is reprocessed into super fiber leather base
Cloth, it is necessary to carry out dissolution decrement to the marine facies-PE of blend staple dimension in the production process of process hides, then will be dissolved in TOL（Toluene）
Polyethylene separated and recovered.All separated and recovered in industry using evaporating and concentrating process, under normal circumstances the PE in TOL
Content≤3%, that is to say, that 1 ton of PE of Productive statistics（Polyethylene）The TOL that raw material at least puts into 33 tons in theory carries out dissolution and steaming
Hair.So this technique needs to consume substantial amounts of steam.Although industry part has used triple effect evaporation technology, toluene recovery
Energy consumption is still very big.
The content of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of low PE/PA6 seas of cost
The separation method and device of polyethylene and toluene in sea component polyvinyl-toluene solution in the woven fabric of island.
The separation method of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that drop PE/TOL solution
Temperature is to PE condensations, then carries out press filtration separation, and putting into dissolution process after the filtering of TOL separating liquids uses, and press filtration obtains PE contents
For more than 30% residue, residue is evaporated separating treatment, realizes the separation of PE and TOL.
The separation method of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that specific method is as follows：
1）PE/TOL solution in PE/TOL solution basins is squeezed into heat exchanger by centrifugal pump, passes through heat exchanger shell
It is passed through cooling water in journey to cool down to PE/TOL solution, the PE/TOL solution after cooling, which enters in collecting tank, to be collected, and PE is slowly
Separated out from PE/TOL solution；
2）The PE/TOL solution of collecting tank is pumped into filter press by high-pressure diaphragm pump and carries out press filtration, polyethylene in filter residue,
TOL filtrates enter TOL basins after being filtered（9）Middle storage；Filter residue is sent into screw extruder and is heated to dissolving, then by heat
Liquid is sent into thin film evaporator, and solvent TOL is evaporated, obtains PE solids.
The separation method of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that in heat exchanger
PE/TOL solution is cooled to 50-60 DEG C.
The separation method of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that in screw extruder
Liquid enters thin film evaporator after being heated to temperature more than 110 DEG C.
The separation method of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that filter press and filter
Can hot toluene backwash be used to handle.
The separator of polyethylene and toluene in the polyvinyl-toluene solution of the method, including the storage of PE/TOL solution
Tank, heat exchanger and filter press, it is characterised in that PE/TOL solution tank bottom discharge ports connect heat exchanger by centrifugal pump
Feed inlet, heat exchanger is equipped with cooling water import and export, and heat exchanger discharge port connects the feed inlet of collecting tank, collecting tank
Discharge port filter press is connected by high-pressure diaphragm pump, the liquid outlet of filter press passes through filter and connects TOL basins, filter press
Solid outlet be sequentially connected screw extruder and thin film evaporator, obtain PE solids, realize the separation of PE and TOL.
The separator of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that be connected with filter press cold
Condenser, for being condensed to the hot toluene in filter press, prevents hot toluene to be volatized into air.
The separator of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that filter press is totally enclosed type
Chase filter press, the mesh of its filter-cloth filtering precision >=150.
The separator of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that the filter-cloth filtering of filter press
Precision is 200 mesh.
The separator of polyethylene and toluene in the polyvinyl-toluene solution, it is characterised in that filter is accurate for ceramics
Filter, the mesh of its filter-cloth filtering precision >=500.
By using above-mentioned technology, compared with prior art, beneficial effects of the present invention are as follows：
1）The present invention makes the PE condensations in TOL carry out press filtration point again by carrying out appropriate cooling processing to PE/TOL solution
From TOL separating liquids can direct plunge into the use of dissolution process, and lime scum uses after being evaporated separating treatment, present invention side
PE contents can reach more than 30% in PE/TOL filter residues of the method Jing Guo press filtration, and industrial PE energy 100% recycles, same 1 ton of PE's
Dissolution can reduce the evaporation capacity of 30 tons of toluene, and not only production efficiency can improve, and energy conservation and environmental protection；
2）The present invention carries out cooling processing by using heat exchanger to PE/TOL solution, and further defines temperature and be reduced to 50
~ 60 DEG C, the energy from complete cold TOL temperature-rise periods when can not only ensure the complete precipitation of PE, but also can have been reused to avoid production
Consumption, improves its separating effect, and saved energy；
3）The mesh of the filter cloth precision of plate filter of the present invention >=150, preferably 200 mesh, so and can meet the retention of PE
Purpose, and filtration resistance is reduced as far as possible, reduce power consumption.
Brief description of the drawings
Fig. 1 is the separator structure diagram of the present invention.
In figure：1-PE/TOL solution basins, 2- centrifugal pumps, 3- heat exchangers, 4- collecting tanks, 5- high-pressure diaphragm pumps, 6- pressures
Filter, 7- condensers, 8- filters, 9-TOL basins, 10- screw extruders, 11- thin film evaporators.
Embodiment
Below in conjunction with Figure of description and embodiment, the invention will be further described, but protection scope of the present invention is simultaneously
It is not limited only to this：
As shown in Figure 1, the separator of polyethylene and toluene in polyvinyl-toluene solution of the present invention, including PE/TOL solution basins
1st, heat exchanger 3 and filter press 6,1 bottom discharge mouth of PE/TOL solution basin connect the charging of heat exchanger 3 by centrifugal pump 2
Mouthful, heat exchanger 3 be equipped with carry out heat exchange cooling water import and export, 3 discharge port of heat exchanger connection collecting tank 4 into
Material mouth, the discharge port of collecting tank 4 connect filter press 6 by high-pressure diaphragm pump 5, and the liquid outlet of filter press 6 is connected by filter 8
TOL basins 9 are connect, the solid outlet of filter press 6 is sequentially connected screw extruder 10 and thin film evaporator 11, obtains PE solids, real
The separation of existing PE and TOL.
The present invention is in order to carry out the material on filter press 6 to be connected with condenser 7 on filter press 6, in filter press
Hot toluene condensed, prevent hot toluene to be volatized into air.
The filter press 6 of the present invention uses totally enclosed type chase filter press, the preferably mesh of its filter-cloth filtering precision >=150, filter cloth
Filtering accuracy is 200 mesh；Filter 8 is ceramic accurate filter, the mesh of its filter-cloth filtering precision >=500.
Embodiment 1
The separation method of polyethylene and toluene in polyvinyl-toluene solution, specific method are as follows：
1）50 kilograms of PE/TOL solution are pumped out from PE/TOL solution basin 1 by centrifugal pump 2（PE concentration 3%）Squeeze into heat exchange
In device 3, cooled down by being passed through cooling water in 3 shell side of heat exchanger to PE/TOL solution, entered after being cooled to 50-60 DEG C
Collected in collecting tank 4, PE is slowly separated out from PE/TOL solution；
2）The PE/TOL solution of collecting tank 4 is pumped into filter press 6 by high-pressure diaphragm pump 5 and carries out press filtration, filter cloth precision is
150 mesh, PE are stayed in filter residue, and TOL filtrates enter in TOL basins 9 after the filtering of filter 8 stores, and obtains 45 kilograms of TOL filters
Liquid, can directly recycle；PE containing filter residue is sent into screw extruder 10 and is heated to dissolving, then 120 DEG C of the hot liquid is sent
Enter in thin film evaporator 11, solvent TOL is evaporated, obtain 1.5 kilograms of PE solids.
The filter press 6 and filter 8 of the present invention can use the hot toluene filtrate of hot toluene or recycling to carry out at backwash
Reason.Filter press 6 in the embodiment uses totally enclosed type chase filter press, its filter-cloth filtering precision is 200 mesh；Filter 8 is
Ceramic accurate filter, its filter-cloth filtering precision are 500 mesh.
Embodiment 2
The separation method of polyethylene and toluene in polyvinyl-toluene solution, specific method are as follows：
1）50 kilograms of PE/TOL solution are pumped out from PE/TOL solution basin 1 by centrifugal pump 2（PE concentration 3%）Squeeze into heat exchange
In device 3, cooled down by being passed through cooling water in 3 shell side of heat exchanger to PE/TOL solution, entered after being cooled to 50-60 DEG C
Collected in collecting tank 4, PE is slowly separated out from PE/TOL solution；
2）The PE/TOL solution of collecting tank 4 is pumped into filter press 6 by high-pressure diaphragm pump 5 and carries out press filtration, PE is stayed in filter residue,
TOL filtrates enter in TOL basins 9 after the filtering of filter 8 stores, and obtains 40 kilograms of TOL filtrates, can directly recycle profit
With；PE containing filter residue is sent into screw extruder 10 and is heated to dissolving, then 120 DEG C of the hot liquid is sent into thin film evaporator 11,
Solvent TOL is evaporated, obtains 1.5 kilograms of PE solids.
The filter press 6 and filter 8 of the present invention can use the hot toluene filtrate of hot toluene or recycling to carry out at backwash
Reason.Filter press 6 in the embodiment uses totally enclosed type chase filter press, its filter-cloth filtering precision is 200 mesh；Filter 8 is
Ceramic accurate filter, its filter-cloth filtering precision are 600 mesh.
Embodiment 3
The separation method of polyethylene and toluene in polyvinyl-toluene solution, specific method are as follows：
1）50 kilograms of PE/TOL solution are pumped out from PE/TOL solution basin 1 by centrifugal pump 2（PE concentration 3%）Squeeze into heat exchange
In device 3, cooled down by being passed through cooling water in 3 shell side of heat exchanger to PE/TOL solution, entered after being cooled to 50-60 DEG C
Collected in collecting tank 4, PE is slowly separated out from PE/TOL solution；
2）The PE/TOL solution of collecting tank 4 is pumped into filter press 6 by high-pressure diaphragm pump 5 and carries out press filtration, PE is stayed in filter residue,
TOL filtrates enter in TOL basins 9 after the filtering of filter 8 stores, and obtains 35 kilograms of TOL filtrates, can directly recycle profit
With；PE containing filter residue is sent into screw extruder 10 and is heated to dissolving, then 120 DEG C of the hot liquid is sent into thin film evaporator 11,
Solvent TOL is evaporated, obtains 1.5 kilograms of PE solids.
The filter press 6 and filter 8 of the present invention can use the hot toluene filtrate of hot toluene or recycling to carry out at backwash
Reason.Filter press 6 in the embodiment uses totally enclosed type chase filter press, its filter-cloth filtering precision is 300 mesh；Filter 8 is
Ceramic accurate filter, its filter-cloth filtering precision are 800 mesh.
Embodiment 4
The separation method of polyethylene and toluene in polyvinyl-toluene solution, specific method are as follows：
1）50 kilograms of PE/TOL solution are pumped out from PE/TOL solution basin 1 by centrifugal pump 2（PE concentration 3%）Squeeze into heat exchange
In device 3, cooled down by being passed through cooling water in 3 shell side of heat exchanger to PE/TOL solution, entered after being cooled to 50-60 DEG C
Collected in collecting tank 4, PE is slowly separated out from PE/TOL solution；
2）The PE/TOL solution of collecting tank 4 is pumped into filter press 6 by high-pressure diaphragm pump 5 and carries out press filtration, PE is stayed in filter residue,
TOL filtrates enter in TOL basins 9 after the filtering of filter 8 stores, and obtains 36 kilograms of TOL filtrates, can directly recycle profit
With；PE containing filter residue is sent into screw extruder 10 and is heated to dissolving, then 120 DEG C of the hot liquid is sent into thin film evaporator 11,
Solvent TOL is evaporated, obtains 1.5 kilograms of PE solids.
The filter press 6 and filter 8 of the present invention can use the hot toluene filtrate of hot toluene or recycling to carry out at backwash
Reason.Filter press 6 in the embodiment uses totally enclosed type chase filter press, its filter-cloth filtering precision is 300 mesh；Filter 8 is
Ceramic accurate filter, its filter-cloth filtering precision are 800 mesh.
Claims (10)
1. the separation method of polyethylene and toluene in polyvinyl-toluene solution, it is characterised in that it is cold that PE/TOL solution is cooled to PE
Condensation goes out, then carries out press filtration separation, and putting into dissolution process after the filtering of TOL separating liquids uses, and press filtration obtains PE contents as more than 30%
Residue, residue is evaporated separating treatment, realizes the separation of PE and TOL.
2. the separation method of polyethylene and toluene in polyvinyl-toluene solution according to claim 1, it is characterised in that tool
Body method is as follows：
1）By PE/TOL solution basins（1）In PE/TOL solution pass through centrifugal pump（2）Squeeze into heat exchanger（3）In, pass through to
Heat exchanger（3）It is passed through cooling water in shell side to cool down to PE/TOL solution, the PE/TOL solution after cooling enters collecting tank
（4）Middle collection, PE are slowly separated out from PE/TOL solution；
2）By collecting tank（4）PE/TOL solution pass through high-pressure diaphragm pump（5）It is pumped into filter press（6）Middle carry out press filtration, polyethylene
In filter residue, TOL filtrates pass through filter（8）Enter TOL basins after filtering（9）Middle storage；Filter residue is sent into screw extruder（10）
It is heated to dissolving, then hot liquid is sent into thin film evaporator（11）In, solvent TOL is evaporated, obtains PE solids.
3. the separation method of polyethylene and toluene in polyvinyl-toluene solution according to claim 2, it is characterised in that heat
Exchanger（3）In PE/TOL solution be cooled to 50-60 DEG C.
4. the separation method of polyethylene and toluene in polyvinyl-toluene solution according to claim 2, it is characterised in that spiral shell
Bar extruder（10）In liquid be heated to temperature more than entering thin film evaporator after 110 DEG C（11）.
5. the separation method of polyethylene and toluene in polyvinyl-toluene solution according to claim 2, it is characterised in that pressure
Filter（6）And filter（8）Can hot toluene backwash be used to handle.
6. the separator of polyethylene and toluene in a kind of polyvinyl-toluene solution of claim 1 the method, including PE/
TOL solution basins（1）, heat exchanger（3）And filter press（6）, it is characterised in that PE/TOL solution basins（1）Bottom discharge mouth leads to
Cross centrifugal pump（2）Connect heat exchanger（3）Feed inlet, heat exchanger（3）It is equipped with cooling water import and export, heat exchanger（3）
Discharge port connects collecting tank（4）Feed inlet, collecting tank（4）Discharge port pass through high-pressure diaphragm pump（5）Connect filter press（6）,
Filter press（6）Liquid outlet pass through filter（8）Connect TOL basins（9）, filter press（6）Solid outlet be sequentially connected spiral shell
Bar extruder（10）And thin film evaporator（11）, PE solids are obtained, realize the separation of PE and TOL.
7. the separator of polyethylene and toluene in polyvinyl-toluene solution according to claim 6, it is characterised in that press filtration
Machine（6）On be connected with condenser（7）.
8. the separator of polyethylene and toluene in polyvinyl-toluene solution according to claim 6, it is characterised in that press filtration
Machine（6）For totally enclosed type chase filter press, the mesh of its filter-cloth filtering precision >=150.
9. the separator of polyethylene and toluene in polyvinyl-toluene solution according to claim 6, it is characterised in that press filtration
Machine（6）Filter-cloth filtering precision be 200 mesh.
10. the separator of polyethylene and toluene in polyvinyl-toluene solution according to claim 6, it is characterised in that filtering
Device（8）For ceramic accurate filter, the mesh of its filter-cloth filtering precision >=500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711294629.1A CN108003378A (en) | 2017-12-08 | 2017-12-08 | The separation method and device of polyethylene and toluene in polyvinyl-toluene solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711294629.1A CN108003378A (en) | 2017-12-08 | 2017-12-08 | The separation method and device of polyethylene and toluene in polyvinyl-toluene solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108003378A true CN108003378A (en) | 2018-05-08 |
Family
ID=62057717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711294629.1A Pending CN108003378A (en) | 2017-12-08 | 2017-12-08 | The separation method and device of polyethylene and toluene in polyvinyl-toluene solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108003378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746258A (en) * | 2019-10-31 | 2020-02-04 | 上海聚友化工有限公司 | Method for separating toluene and polyethylene |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1175536A (en) * | 1956-05-24 | 1959-03-27 | Technoplast Spindler Ag | Process for the production of finely divided polyethylene |
| US3218304A (en) * | 1959-06-06 | 1965-11-16 | Ruhrchemie Ag | Process for the aftertreatment of polyolefins |
| WO1994009064A1 (en) * | 1992-10-15 | 1994-04-28 | Sven Ljungbo | Way to regain polythene and polypropylene and other polyolefines from return material, especially such of composite type |
| US6225360B1 (en) * | 1998-06-20 | 2001-05-01 | Kwang Kim | Method and system for recovering polyethylene from waste resin-compounds |
| CN102824751A (en) * | 2012-08-31 | 2012-12-19 | 烟台东洁环保机械工程有限公司 | Distillation separation and recovery method for toluene-polyethylene mixed solution and used equipment |
| CN103467775A (en) * | 2013-08-26 | 2013-12-25 | 深圳百亿莱实业有限公司 | Method for extracting polyethene from polyethene white garbage |
| CN106397828A (en) * | 2016-09-14 | 2017-02-15 | 闽南师范大学 | Recycling method of polyethylene in superfine fiber preparation |
| CN207727018U (en) * | 2017-12-08 | 2018-08-14 | 禾欣可乐丽超纤皮(嘉兴)有限公司 | The separator of polyethylene and toluene in polyvinyl-toluene solution |
-
2017
- 2017-12-08 CN CN201711294629.1A patent/CN108003378A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1175536A (en) * | 1956-05-24 | 1959-03-27 | Technoplast Spindler Ag | Process for the production of finely divided polyethylene |
| US3218304A (en) * | 1959-06-06 | 1965-11-16 | Ruhrchemie Ag | Process for the aftertreatment of polyolefins |
| WO1994009064A1 (en) * | 1992-10-15 | 1994-04-28 | Sven Ljungbo | Way to regain polythene and polypropylene and other polyolefines from return material, especially such of composite type |
| US6225360B1 (en) * | 1998-06-20 | 2001-05-01 | Kwang Kim | Method and system for recovering polyethylene from waste resin-compounds |
| CN102824751A (en) * | 2012-08-31 | 2012-12-19 | 烟台东洁环保机械工程有限公司 | Distillation separation and recovery method for toluene-polyethylene mixed solution and used equipment |
| CN103467775A (en) * | 2013-08-26 | 2013-12-25 | 深圳百亿莱实业有限公司 | Method for extracting polyethene from polyethene white garbage |
| CN106397828A (en) * | 2016-09-14 | 2017-02-15 | 闽南师范大学 | Recycling method of polyethylene in superfine fiber preparation |
| CN207727018U (en) * | 2017-12-08 | 2018-08-14 | 禾欣可乐丽超纤皮(嘉兴)有限公司 | The separator of polyethylene and toluene in polyvinyl-toluene solution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746258A (en) * | 2019-10-31 | 2020-02-04 | 上海聚友化工有限公司 | Method for separating toluene and polyethylene |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207877494U (en) | Lithium battery nickel-cobalt-manganese ternary presoma waste water treatment system | |
| CN102616972B (en) | Comprehensive recycling method and device for high-salt-content amino acid waste water | |
| CN203428934U (en) | Concentrating and crystallizing system of copper sulfate solution | |
| CN212941831U (en) | Multifunctional waste organic solvent recovery equipment | |
| CN106809999A (en) | Epoxy resin high-concentration waste water processing system | |
| CN101224933B (en) | Treatment method for zero discharge of ionic liquid water solution | |
| CN106430787B (en) | A kind of APT production wastewater recycling method | |
| CN208345792U (en) | A kind of double-effect evaporation desalter for mercury processing system in PVC production process | |
| CN103253819B (en) | Production technology for treating ternary-monomer wastewater and extracting sodium sulfate | |
| CN207727018U (en) | The separator of polyethylene and toluene in polyvinyl-toluene solution | |
| CN106277532A (en) | Epoxy resin waste-water preprocess method | |
| CN108003378A (en) | The separation method and device of polyethylene and toluene in polyvinyl-toluene solution | |
| CN102001707A (en) | Method for recycling chromic acid in electroplating waste water | |
| CN103525887A (en) | Energy-saving environment-friendly crystalline dextrose production method | |
| CN110204126A (en) | The treating method and apparatus of lithium electricity industry ternary waste water | |
| CN212151674U (en) | Liquid evaporation mummification processing apparatus | |
| CN202865196U (en) | System for recovering cutting fluid and silicon carbide in waste mortar in silicon wafer cutting | |
| CN211570356U (en) | Material washing water recycling and circulating system | |
| CN219333682U (en) | Environment-friendly waste gas vacuum treatment system | |
| CN101874983B (en) | Method and device for evaporation concentration of depressurized membrane | |
| CN206843265U (en) | High concentration epoxy resin waste-water processing unit | |
| CN204999762U (en) | Concentrated crystallization equipment of carnallite waste water | |
| CN207845726U (en) | A kind of bastnaesite rare earth production technology system | |
| CN202849194U (en) | Comprehensive recycling device of high-salt-content amino acid wastewater | |
| CN104743694B (en) | Recycling processing method and device of heavy metal ion-containing organic acid wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |