CN1718408A - Method of recovery and utilization of aluminium plastic composite film - Google Patents
Method of recovery and utilization of aluminium plastic composite film Download PDFInfo
- Publication number
- CN1718408A CN1718408A CNA200510036166XA CN200510036166A CN1718408A CN 1718408 A CN1718408 A CN 1718408A CN A200510036166X A CNA200510036166X A CN A200510036166XA CN 200510036166 A CN200510036166 A CN 200510036166A CN 1718408 A CN1718408 A CN 1718408A
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- Prior art keywords
- composite membrane
- aluminum
- plastic composite
- plastic
- aluminium foil
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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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- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
A process for reclaiming the composite aluminium-plastic film includes such steps as immersing said film in organic solvent, stirring, centrifugal removal of said organic solvent, and manually separating Al foil from plastic film by stripping.
Description
Technical field
The present invention relates to a kind of method of recycling aluminum-plastic composite membrane, specifically be meant the method that the aluminium foil in the waste and old aluminum-plastic composite membrane is separated and recycles with plastics.
Background technology
Aluminum-plastic composite membrane is a kind of purposes packaging material very widely, and it mainly is to be composited by aluminium foil and plastic sheeting.And aluminium foil is to be formed by the rafifinal compacting.In the plastic-aluminum combined membrane process of industrial production, can produce a large amount of leftover pieces and waste material, and the aluminum-plastic composite membrane that is used for packaging material can stay a large amount of waste and old aluminum-plastic composite membranes after using.These waste and old aluminum-plastic composite membranes or reclaimed by waste and old material company adopt the method for burning then, and the plastics in the composite membrane are burnt, and stay aluminium foil.There are many problems in this simple treatment process, as the aluminium foil after burning oxidation reaction often takes place in burning process, makes its degradation, and added value sharply descends, and the aluminium foil color blackening of reclaiming; In addition, in burning process,, environment is caused serious pollution, and can not effectively utilize plastics in the aluminum-plastic composite membrane because the burning of plastics can produce poisonous in a large number, harmful gas and flue dust.Therefore, the relevant rules of government forbid adopting the method for burning to reclaim aluminium foil in the aluminum-plastic composite membrane.The scientific methods that does not reclaim in the existing documents and materials about aluminum-plastic composite membrane.Therefore, waste and old aluminum-plastic composite membrane often is taken as garbage disposal, because the non-degradable of plastics not only brings serious pollution to environment, and wasted a large amount of available resources.
Summary of the invention
The objective of the invention is to remedy the shortcomings and deficiencies of industrial production and resource reutilization aspect, create that a kind of technical process is simple, with low cost, easy operating and do not produce the process of aluminium foil and plastics in the recovery aluminum-plastic composite membrane of secondary pollution.This method can either reclaim the reproducible utilization resource, can thoroughly solve the problem of environmental pollution that aluminum-plastic composite membrane brings again, therefore has boundless economic implications and social effect.
Purpose of the present invention reaches by following measure:
A kind of aluminum-plastic composite membrane recoverying and utilizing method, be primarily characterized in that, at first prepare a kind of double solvents, this solvent can be the single organic alcohol that contains 2～15 carbon atoms, organic ester, organic ether compounds, also can be the mixed solvent that above-claimed cpd is formed by a certain percentage.Then waste and old aluminum-plastic composite membrane is pulverized, is soaked in the above-mentioned double solvents, and stir, behind 0.5～20h, take out aluminum-plastic composite membrane and put into centrifuge, the organic solvent desorption that is adsorbed in the aluminum-plastic composite membrane is come out, and the solvent that desorption comes out can continue to use; Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
The present invention has following advantage:
(1) technology of the present invention is simple, easy operating;
(2) the present invention carries out regeneration with waste and old aluminum-plastic composite membrane, obtains having the aluminium foil and the plastics of higher economic worth, has tangible economic implications;
(3) the present invention has thoroughly solved discarded aluminum-plastic composite membrane and has brought serious problems such as pollution to environment, has good social benefit.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethanol and methyl acetate then is the mixed solvent of ethanol-methyl acetate of 10: 1 and covers aluminum-plastic composite membrane, stir and immersion 20h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 2:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethanol and methyl acetate then is the mixed solvent of ethanol-methyl acetate of 1: 100 and covers aluminum-plastic composite membrane, stir and immersion 1h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 3:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethanol and butyl acetate then is the mixed solvent of ethanol-butyl acetate of 10: 1 and covers aluminum-plastic composite membrane, stir and immersion 20h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 4:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethanol and butyl acetate then is the mixed solvent of ethanol-butyl acetate of 1: 100 and covers aluminum-plastic composite membrane, stir and immersion 10h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 5:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethanol and butyl acetate then is the mixed solvent of ethanol-butyl acetate of 1: 1 and covers aluminum-plastic composite membrane, stir and immersion 15h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 6:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds isopropyl alcohol and methyl acetate then is the mixed solvent of isopropyl alcohol-methyl acetate of 10: 1 and covers aluminum-plastic composite membrane, stir and immersion 15h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 7:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds isopropyl alcohol and methyl formate then is the mixed solvent of isopropyl alcohol-methyl formate of 1: 1 and covers aluminum-plastic composite membrane, stir and immersion 5h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 8:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds acetone and methyl acetate then is the mixed solvent of acetone-methyl acetate of 10: 1 and covers aluminum-plastic composite membrane, stir and immersion 7h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 9:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds isopropyl alcohol and methyl propionate then is the mixed solvent of isopropyl alcohol-methyl propionate of 1: 1 and covers aluminum-plastic composite membrane, stir and immersion 15h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 10:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethylene glycol monobutyl ether and methyl acetate then is the mixed solvent of ethylene glycol monobutyl ether-methyl acetate of 20: 1 and covers aluminum-plastic composite membrane, stir and immersion 15h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Embodiment 11:
In the container of 5000ml band condenser, load the aluminum-plastic composite membrane through pulverizing of four/three volumes, the volume ratio that adds ethylene glycol monobutyl ether and methyl formate then is the mixed solvent of ethylene glycol monobutyl ether-methyl formate of 50: 1 and covers aluminum-plastic composite membrane, stir and immersion 20h, take out aluminum-plastic composite membrane and put into supercentrifuge, the solvent desorption that composite membrane is adsorbed comes out; The solvent of above-mentioned soak and desorption can be reused.Then, composite membrane is placed water, utilize the gravity effect, the aluminium foil in the composite membrane separates with plastic foil, obtains the aluminium foil and the plastics that can utilize again.
Claims (5)
1, a kind of method of recycling aluminum-plastic composite membrane is characterized in that comprising the steps:
(1) waste and old aluminum-plastic composite membrane is pulverized, is dipped in the organic solvent, stir, soak time is 0.5～20h;
(2) aluminum-plastic composite membrane after taking-up is soaked, and put into centrifuge, desorption goes out to be adsorbed on the organic solvent in the aluminum-plastic composite membrane;
(3) composite membrane behind desorption is placed water, utilize the gravity effect, the aluminium foil in the composite membrane is separated with plastic foil, promptly obtain recycling aluminium foil and plastics.
2, a kind of method of recycling aluminum-plastic composite membrane according to claim 1 is characterized in that the described organic solvent of step (1) is organic alcohol of 2～15 carbon atoms.
3, a kind of method of recycling aluminum-plastic composite membrane according to claim 1 is characterized in that the described organic solvent of step (1) is the organic ester of 2～15 carbon atoms.
4, a kind of method of recycling aluminum-plastic composite membrane according to claim 1 is characterized in that the described organic solvent of step (1) is the organic ether compounds of 2～15 carbon atoms.
5, a kind of method of recycling aluminum-plastic composite membrane according to claim 1 is characterized in that the described organic solvent of step (1) is two or more the mixture in the organic alcohol, organic ester, organic ether compounds of 2～15 carbon atoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200510036166XA CN1718408A (en) | 2005-07-27 | 2005-07-27 | Method of recovery and utilization of aluminium plastic composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200510036166XA CN1718408A (en) | 2005-07-27 | 2005-07-27 | Method of recovery and utilization of aluminium plastic composite film |
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| Publication Number | Publication Date |
|---|---|
| CN1718408A true CN1718408A (en) | 2006-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200510036166XA Pending CN1718408A (en) | 2005-07-27 | 2005-07-27 | Method of recovery and utilization of aluminium plastic composite film |
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| CN (1) | CN1718408A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206359A (en) * | 2010-03-31 | 2011-10-05 | 中国环境科学研究院 | Successive separation method of aluminum-plastic composite packaging materials and device thereof |
| CN103111944A (en) * | 2013-02-04 | 2013-05-22 | 深圳市常兴技术股份有限公司 | Method for detaching plastic film for shielding on electroplate grinding head |
| CN103934921A (en) * | 2014-04-01 | 2014-07-23 | 铜陵市天元新能源科技有限公司 | Utilization method and device of waste metalized polypropylene electrical thin film |
| CN111842426A (en) * | 2020-07-20 | 2020-10-30 | 郭芸 | Cigarette case processing device |
-
2005
- 2005-07-27 CN CNA200510036166XA patent/CN1718408A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206359A (en) * | 2010-03-31 | 2011-10-05 | 中国环境科学研究院 | Successive separation method of aluminum-plastic composite packaging materials and device thereof |
| CN102206359B (en) * | 2010-03-31 | 2013-05-29 | 中国环境科学研究院 | Successive separation method of aluminum-plastic composite packaging materials and device thereof |
| CN103111944A (en) * | 2013-02-04 | 2013-05-22 | 深圳市常兴技术股份有限公司 | Method for detaching plastic film for shielding on electroplate grinding head |
| CN103934921A (en) * | 2014-04-01 | 2014-07-23 | 铜陵市天元新能源科技有限公司 | Utilization method and device of waste metalized polypropylene electrical thin film |
| CN111842426A (en) * | 2020-07-20 | 2020-10-30 | 郭芸 | Cigarette case processing device |
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