CN106750511A - A kind of method that ABS is reclaimed from composite plastic - Google Patents
A kind of method that ABS is reclaimed from composite plastic Download PDFInfo
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- CN106750511A CN106750511A CN201611191113.XA CN201611191113A CN106750511A CN 106750511 A CN106750511 A CN 106750511A CN 201611191113 A CN201611191113 A CN 201611191113A CN 106750511 A CN106750511 A CN 106750511A
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- 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
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
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- 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
- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
- C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
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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
- 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
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a kind of method that ABS is reclaimed from composite plastic, belong to technical field of plastic, specifically include following steps：（1）Cleaning is broken,（2）Solvent preparation,（3）Dissolution process,（4）ABS particles produce,（5）Purified treatment,（6）Dried process.The present invention puts the rate of recovery of the method for ABS can be stablized 96.2 ~ 98.0%, effectively improve the effect of recovery, increased economic benefit, protect environment, and residual solvent is less in reclaiming the ABS being made, and preferably, use value is higher for combination property.
Description
Technical field
The invention belongs to technical field of plastic, and in particular to a kind of method that ABS is reclaimed from composite plastic.
Background technology
This three big synthetic material of plastics, synthetic rubber, synthetic fibers and steel, cement together form the four of modern society
Big basic material, is one of new material of support modernization development in Hi-Tech, is information, the energy, industrial or agricultural, building materials industry, traffic
The all indispensable production material of the national economy such as transport, ocean development, Aero-Space or even family life and various fields of recent life
Material.
In the discarded object of above-mentioned material, the most material of recoverable content belongs to plastics, this be due to plastics it
With quality is light, the fine tradition such as intensity is high, be easily worked, meet the use demand of modernized society.According to incompletely statistics, I
The annual about 14,000,000 tons waste or used plastics of state are produced, and recovery utilization rate directly wastes recyclable plastics not up to 30%
About 10,000,000 tons or so.These waste plastics can be divided into 5 major classes：Polyethylene（PE）, polypropylene（PP）, polystyrene（PS）, it is poly-
Vinyl chloride（PVC）, acrylonitrile-butadiene-styrene copolymer（ABS）, wherein the plastics containing ABS account for 1/3rd,
It is the plastics of content maximum in these waste plastics.
Solvent-recovery process is one of main method now for ABS recovery, and it has working process mode relatively easy
Advantage, but its rate of recovery is then slightly lower, and this problem is closely bound up with proportioning, the technique of processing of solvent etc., therefore reasonably optimizing
Recovery process, improving protection of the substance recovery to environment has good meaning.
The content of the invention
The present invention is intended to provide a kind of method that ABS is reclaimed from composite plastic.
The present invention is achieved through the following technical solutions：
A kind of method that ABS is reclaimed from composite plastic, comprises the following steps：
（1）Cleaning is broken：
After being rinsed removal of impurities to composite plastic to be processed with clear water, treatment is dried to it, then put it into broken
It is standby after break process in machine；
（2）It is prepared by solvent：
First following material is weighed by weight：30 ~ 35 parts of 1-METHYLPYRROLIDONEs, 12 ~ 15 parts of dimethylformamides, 2 ~ 4 parts of second
Acetoacetic ester, 2 ~ 3 parts of dimethylbenzene, 1 ~ 2 part of rosin, 1 ~ 3 part of furans, 2 ~ 3 parts of ether, then mix above-mentioned substance jointly
It is uniform that solvent is standby；
（3）Dissolution process：
A. by step（1）The same step of composite plastic after broken（2）Obtained solvent is by weight 1：It is put into after 5 ~ 7 mixing closed
In tank；
B. it is 78 ~ 82 DEG C that first heating keeps the temperature of vapor tight tank, 0.6 ~ 0.8MPa is pressurized to, with 900 ~ 1000 revs/min turn
After fast 1.5 ~ 2h of stir process, then it is warming up to 84 ~ 87 DEG C, boosts to 1.0 ~ 1.2MPa, then is turned with 1200 ~ 1300 revs/min
Mixed liquor is obtained after fast 0.5 ~ 1h of stir process standby；Course of dissolution is set to the operation of two steps, the former can effectively facilitate solvent molecule
Penetrated into the space of abs polymer molecule interchain, be allowed to volume and swell, the latter can promote solvent molecule to abs polymer high score
Subchain is melted, and weakens its interaction, accelerates the speed of overall dissolving, improves the rate of recovery of dissolving；
C. the mixed liquor after b treatment will be operated to be filtered, it is standby that elimination filter residue obtains filtrate；
（4）ABS particles are produced：
By step（3）The filtrate of gained is put into retort, adds the anti-precipitating reagent of 3 ~ 4 times of filtrate gross mass, and heating keeps temperature
It is 43 ~ 45 DEG C to spend, and after being stirred continuously treatment with 600 ~ 700 revs/min of rotating speed, then is stood, be layered, filtered and to obtain ABS
Grain is standby；
（5）Purified treatment：
By step（4）The ABS particles of gained are put into vapor tight tank and clean jointly with the clear water of 8 ~ 10 times of its gross mass, and with frequency
It is the Sonication assisted treatment of 41 ~ 43kHz, leaches ABS particles after the completion of cleaning standby；In ABS particles after purified treatment
Contained residual preparation percentage have dropped 50% or so than existing methods below 1.5%, and the quality of recovery is ensure that very well；
（6）Dried process：
By step（5）After ABS particles after treatment are placed in temperature for 2 ~ 3h of dried process under conditions of 85 ~ 88 DEG C.
Further, step（1）Described in 20 mesh are crossed after composite plastic break process.
Further, step（4）Described in anti-precipitating reagent be ethanol.
Further, step（5）Described in cleaning operation with ABS particle cleanings to index of refraction it is constant.
The present invention has the advantages that：
The reasonably combined solvent composition of the present invention, has been effectively ensured the dissolution of ABS resin raw material, keeps appropriate in dissolution process
Temperature and pressure be conducive to the further dissolution of ABS resin, coordinate appropriate mixing speed to be conducive to obtaining particle diameter smaller
Granulin molecule, while the process of dissolution process is set into two steps, preceding step is conducive to the carrying out of swelling period, and step is conducive to afterwards
The quick of dissolution phase is carried out, it is ensured that the dissolution rate and result of extraction of active principle, the ultrasonic wave applied in purified treatment
Treatment is conducive to the ABS particles being made to go the carrying out of residual solvent, further ensures the quality of recovery.Finally in each step
Under reasonable coordination effect, the present invention puts the rate of recovery of the method for ABS can be stablized 96.2 ~ 98.0%, effectively improve recovery
Effect, increased economic benefit, protect environment, and residual solvent is less in reclaiming the ABS being made, and combination property preferably, makes
It is higher with being worth.
Specific embodiment
Embodiment 1
A kind of method that ABS is reclaimed from composite plastic, comprises the following steps：
（1）Cleaning is broken：
After being rinsed removal of impurities to composite plastic to be processed with clear water, treatment is dried to it, then put it into broken
It is standby after break process in machine；
（2）It is prepared by solvent：
First following material is weighed by weight：30 parts of 1-METHYLPYRROLIDONEs, 12 parts of dimethylformamides, 2 parts of ethyl acetate, 2
Part dimethylbenzene, 1 part of rosin, 1 part of furans, 2 parts of ether, then obtain solvent standby by the common mixing and stirring of above-mentioned substance；
（3）Dissolution process：
A. by step（1）The same step of composite plastic after broken（2）Obtained solvent is by weight 1：Vapor tight tank is put into after 5 mixing
In；
B. it is 78 DEG C that first heating keeps the temperature of vapor tight tank, 0.6MPa is pressurized to, with 900 revs/min of rotating speed stir process
After 1.5h, then be warming up to 84 DEG C, boost to 1.0MPa, then with after 1200 revs/min of rotating speed stir process 0.5h mixed liquor
It is standby；
C. the mixed liquor after b treatment will be operated to be filtered, it is standby that elimination filter residue obtains filtrate；
（4）ABS particles are produced：
By step（3）The filtrate of gained is put into retort, adds the anti-precipitating reagent of 3 times of filtrate gross mass, heats keeping temperature
Be 43 DEG C, with 600 revs/min of rotating speed be stirred continuously treatment after, then stood, be layered, being filtered ABS particles are standby；
（5）Purified treatment：
By step（4）The ABS particles of gained are put into vapor tight tank and clean jointly with the clear water of 8 times of its gross mass, and are with frequency
The Sonication assisted treatment of 41kHz, leaches ABS particles after the completion of cleaning standby；
（6）Dried process：
By step（5）After ABS particles after treatment are placed in temperature for dried process 2h under conditions of 85 DEG C.
Further, step（1）Described in 20 mesh are crossed after composite plastic break process.
Further, step（4）Described in anti-precipitating reagent be ethanol.
Further, step（5）Described in cleaning operation with ABS particle cleanings to index of refraction it is constant.
Embodiment 2
A kind of method that ABS is reclaimed from composite plastic, comprises the following steps：
（1）Cleaning is broken：
After being rinsed removal of impurities to composite plastic to be processed with clear water, treatment is dried to it, then put it into broken
It is standby after break process in machine；
（2）It is prepared by solvent：
First following material is weighed by weight：35 parts of 1-METHYLPYRROLIDONEs, 15 parts of dimethylformamides, 4 parts of ethyl acetate, 3
Part dimethylbenzene, 2 parts of rosin, 3 parts of furans, 3 parts of ether, then obtain solvent standby by the common mixing and stirring of above-mentioned substance；
（3）Dissolution process：
A. by step（1）The same step of composite plastic after broken（2）Obtained solvent is by weight 1：Vapor tight tank is put into after 7 mixing
In；
B. it is 82 DEG C that first heating keeps the temperature of vapor tight tank, 0.8MPa is pressurized to, with 1000 revs/min of rotating speed stir process 2h
Afterwards, then be warming up to 87 DEG C, boost to 1.2MPa, then with after 1300 revs/min of rotating speed stir process 1h mixed liquor is standby；
C. the mixed liquor after b treatment will be operated to be filtered, it is standby that elimination filter residue obtains filtrate；
（4）ABS particles are produced：
By step（3）The filtrate of gained is put into retort, adds the anti-precipitating reagent of 4 times of filtrate gross mass, heats keeping temperature
Be 45 DEG C, with 700 revs/min of rotating speed be stirred continuously treatment after, then stood, be layered, being filtered ABS particles are standby；
（5）Purified treatment：
By step（4）The ABS particles of gained are put into vapor tight tank and clean jointly with the clear water of 10 times of its gross mass, and are with frequency
The Sonication assisted treatment of 43kHz, leaches ABS particles after the completion of cleaning standby；
（6）Dried process：
By step（5）After ABS particles after treatment are placed in temperature for dried process 3h under conditions of 88 DEG C.
Further, step（1）Described in 20 mesh are crossed after composite plastic break process.
Further, step（4）Described in anti-precipitating reagent be ethanol.
Further, step（5）Described in cleaning operation with ABS particle cleanings to index of refraction it is constant.
Comparative example 1
This comparative example 1 compared with Example 1, does not contain ethyl acetate, dimethylbenzene and rosin, except this in its solvent composition
Outer method and step all same.
Comparative example 2
This comparative example 2 compared with Example 2, in step（3）It is all the time 87 DEG C, pressure with temperature in the operation b of dissolution process
Power is that 1.2MPa, rotating speed are processed for 1300 revs/min, and total duration is 3h, method and step all same in addition.
Control group
Existing ABS method for recovering solvents.
In order to contrast effect of the present invention, will be crushed with a collection of washing machine shell composite plastic containing ABS, random point
It it is five groups, then correspond to carries out recycling operation, and statistic record recovering effect, specific correction data with above-mentioned five kinds of methods
It is as shown in table 1 below：
Table 1
| The ABS rate of recovery（%） | |
| Embodiment 1 | 97.4 |
| Embodiment 2 | 97.7 |
| Comparative example 1 | 94.3 |
| Comparative example 2 | 95.5 |
| Control group | 92.3 |
By upper table 1 as can be seen that the inventive method can effectively lift the rate of recovery of ABS, overall economic benefit is improved very well,
It is beneficial to environmental protection again.
Claims (4)
1. it is a kind of from composite plastic reclaim ABS method, it is characterised in that comprise the following steps：
（1）Cleaning is broken：
After being rinsed removal of impurities to composite plastic to be processed with clear water, treatment is dried to it, then put it into broken
It is standby after break process in machine；
（2）It is prepared by solvent：
First following material is weighed by weight：30 ~ 35 parts of 1-METHYLPYRROLIDONEs, 12 ~ 15 parts of dimethylformamides, 2 ~ 4 parts of second
Acetoacetic ester, 2 ~ 3 parts of dimethylbenzene, 1 ~ 2 part of rosin, 1 ~ 3 part of furans, 2 ~ 3 parts of ether, then mix above-mentioned substance jointly
It is uniform that solvent is standby；
（3）Dissolution process：
A. by step（1）The same step of composite plastic after broken（2）Obtained solvent is by weight 1：It is put into after 5 ~ 7 mixing closed
In tank；
B. it is 78 ~ 82 DEG C that first heating keeps the temperature of vapor tight tank, 0.6 ~ 0.8MPa is pressurized to, with 900 ~ 1000 revs/min turn
After fast 1.5 ~ 2h of stir process, then it is warming up to 84 ~ 87 DEG C, boosts to 1.0 ~ 1.2MPa, then is turned with 1200 ~ 1300 revs/min
Mixed liquor is obtained after fast 0.5 ~ 1h of stir process standby；
C. the mixed liquor after b treatment will be operated to be filtered, it is standby that elimination filter residue obtains filtrate；
（4）ABS particles are produced：
By step（3）The filtrate of gained is put into retort, adds the anti-precipitating reagent of 3 ~ 4 times of filtrate gross mass, and heating keeps temperature
It is 43 ~ 45 DEG C to spend, and after being stirred continuously treatment with 600 ~ 700 revs/min of rotating speed, then is stood, be layered, filtered and to obtain ABS
Grain is standby；
（5）Purified treatment：
By step（4）The ABS particles of gained are put into vapor tight tank and clean jointly with the clear water of 8 ~ 10 times of its gross mass, and with frequency
It is the Sonication assisted treatment of 41 ~ 43kHz, leaches ABS particles after the completion of cleaning standby；
（6）Dried process：
By step（5）After ABS particles after treatment are placed in temperature for 2 ~ 3h of dried process under conditions of 85 ~ 88 DEG C.
2. it is according to claim 1 it is a kind of from composite plastic reclaim ABS method, it is characterised in that step（1）Middle institute
20 mesh are crossed after stating composite plastic break process.
3. it is according to claim 1 it is a kind of from composite plastic reclaim ABS method, it is characterised in that step（4）Middle institute
The anti-precipitating reagent stated is ethanol.
4. it is according to claim 1 it is a kind of from composite plastic reclaim ABS method, it is characterised in that step（5）Middle institute
The cleaning operation stated with ABS particle cleanings to index of refraction it is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191113.XA CN106750511A (en) | 2016-12-21 | 2016-12-21 | A kind of method that ABS is reclaimed from composite plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191113.XA CN106750511A (en) | 2016-12-21 | 2016-12-21 | A kind of method that ABS is reclaimed from composite plastic |
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| CN106750511A true CN106750511A (en) | 2017-05-31 |
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| CN201611191113.XA Pending CN106750511A (en) | 2016-12-21 | 2016-12-21 | A kind of method that ABS is reclaimed from composite plastic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108997585A (en) * | 2018-07-12 | 2018-12-14 | 廊坊市思丁生物科技发展有限公司 | A kind of preparation method and applications of ABS- chitosan quaternary ammonium salt composite material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694491A (en) * | 2013-12-20 | 2014-04-02 | 武汉工程大学 | Method for recycling, modifying and regenerating waste ABS (Acrylonitrile Butadiene Styrene) composite plastic |
-
2016
- 2016-12-21 CN CN201611191113.XA patent/CN106750511A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694491A (en) * | 2013-12-20 | 2014-04-02 | 武汉工程大学 | Method for recycling, modifying and regenerating waste ABS (Acrylonitrile Butadiene Styrene) composite plastic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108997585A (en) * | 2018-07-12 | 2018-12-14 | 廊坊市思丁生物科技发展有限公司 | A kind of preparation method and applications of ABS- chitosan quaternary ammonium salt composite material |
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Application publication date: 20170531 |
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