CN101380787A - Recovery recycling method of waste aluminum foil wrapper paper - Google Patents
Recovery recycling method of waste aluminum foil wrapper paper Download PDFInfo
- Publication number
- CN101380787A CN101380787A CNA2007101458958A CN200710145895A CN101380787A CN 101380787 A CN101380787 A CN 101380787A CN A2007101458958 A CNA2007101458958 A CN A2007101458958A CN 200710145895 A CN200710145895 A CN 200710145895A CN 101380787 A CN101380787 A CN 101380787A
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- China
- Prior art keywords
- aluminum foil
- waste aluminum
- wrapper paper
- recycling
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
The present invention discloses a recycling method of discarded aluminum foil wrapping paper. The method includes the following steps: (a) a plurality of discarded aluminum foil wrapping paper, which consists of an aluminum foil interlayer, a first plastic membrane and a second plastic membrane for sandwiching the aluminum foil interlayer, is divided into a plurality of kinds; (b) the discarded aluminum foil wrapping paper is cleaned; (c) one kind of discarded aluminum foil wrapping paper is immersed in the decomposing solution so as to solve the aluminum foil interlayer and peel off the plastic membranes; (d) the plastic membranes are taken out of the decomposing solution; (e) the first plastic membrane and the second plastic membrane are put in specific gravity liquid so as to ensure the stratified distribution of the two plastic membranes.
Description
Technical field
The present invention relates to the method for a kind of recycling (resource), be meant the method for the recycling of discarded aluminium foil (aluminum foil) wrapping paper especially.
Background technology
Because the packing of electronic products such as packaging for foodstuff and electronics spare part, photovoltaic all must use aluminum foil wrapper paper, and along with the differentiation of popular life day by day develops towards sophistication and digitized direction, therefore, these grocery trades and electronic product industry have also relatively produced many waste aluminum foil wrapper papers.
In the past, because aluminum foil wrapper paper still has many technology barriers on recovery technology; Therefore, ground even or various countries nearly all are considered as garbage waste material with it and handle such as in Taiwan, continent.Early stage common processing mode is waste aluminum foil wrapper paper to be transported to bury the landfill or refuse incinerator (incinerator) burns mostly.But these waste aluminum foil wrapper papers are because of containing a large amount of plastic components, not only go through when burying and also can not degenerate in thousand; In addition, can produce toxic gas and can shorten service life of incinerator during burning again.Therefore, the processing of waste aluminum foil wrapper paper has become the problem that various countries environmental protection unit very has a headache.Moreover present stage, the government of part country also forbade burying processing, and therefore, the relevant dealer who uses aluminum foil wrapper paper at present generally is temporary transient accumulation, still is untreated.
As shown in the above description, deal carefully with waste aluminum foil wrapper paper to reduce environmental issue, and the secondary source material (recycled raw material) of trying to achieve recycling in waste aluminum foil wrapper paper to be to create vast economic benefit, be current various countries environmental protection unit with the dealer who uses aluminum foil wrapper paper a difficult problem to be solved.
Summary of the invention
Employed aluminum foil wrapper paper on the general industry or on the people's livelihood, be the film layer structure that is plastics (plastic) film/aluminium foil intermediate layer/plastic foil haply, for instance, can be the film layer structure of PET/ aluminium foil intermediate layer/PE, OPP/ aluminium foil intermediate layer/PE, PVC/ aluminium foil intermediate layer/PE etc.
Because aluminium (Al) can promptly be dissolved by acid solution (acid solution) or alkaline solution (alkaline solution), and the plastic foil on the waste aluminum foil wrapper paper has the film layer structure of different plastic materials.Therefore, the present invention mainly is a special amphoteric metal character of utilizing aluminium, waste aluminum foil wrapper paper is soaked in acidity or the alkaline solution is folded in the aluminium foil intermediate layer of plastic foil up and down with dissolving, and then make that plastic foil is able to peel off from the aluminium foil intermediate layer up and down; In addition, the present invention also utilizes the characteristics that different plastic materials possess different specific weight, and the plastic foil after will peeling off further is positioned in the specific gravity liquid and leaves standstill, so that the plastic foil of different plastic materials is able to hierarchically distribute because of difference of specific gravity.
The object of the present invention is to provide a kind of method of recycling of waste aluminum foil wrapper paper.
The method of the recycling of waste aluminum foil wrapper paper of the present invention may further comprise the steps:
(a) have one deck aluminium foil intermediate layer respectively with most and insert and put one deck first plastic foil in this aluminium foil intermediate layer and the waste aluminum foil wrapper paper of one deck second plastic foil is divided into most classifications;
(b) clean described waste aluminum foil wrapper paper;
(c) waste aluminum foil wrapper paper that soaks one of them classification in decomposed solution to dissolve its aluminium foil intermediate layer and its plastic foil peeled off;
(d) this decomposed solution is taken out described plastic foil certainly; And
(e) described first and second plastic foil is positioned in the specific gravity liquid so that described first and second plastic foil layer distributed.
Effect of the present invention is, can deal carefully with waste aluminum foil wrapper paper with the minimizing environmental issue, and also can give the secondary utilization again through back processing processing via the plastic foil after the specific gravity liquid layer distributed, thereby creates vast economic benefit.
The present invention is described in detail below in conjunction with drawings and Examples:
Description of drawings
Fig. 1 is a flow process calcspar, and the preferred embodiment of method of the recycling of waste aluminum foil wrapper paper of the present invention is described.
The specific embodiment
Consult Fig. 1, a preferred embodiment of the method for the recycling of waste aluminum foil wrapper paper of the present invention may further comprise the steps:
(a) have one deck aluminium foil intermediate layer respectively with most and insert and put one deck first plastic foil in this aluminium foil intermediate layer and the waste aluminum foil wrapper paper of one deck second plastic foil is divided into most classifications;
(b) clean described waste aluminum foil wrapper paper;
(c) waste aluminum foil wrapper paper that soaks one of them classification in decomposed solution to dissolve its aluminium foil intermediate layer and its plastic foil peeled off;
(d) this decomposed solution is taken out described plastic foil certainly; And
(e) described first and second plastic foil is positioned in the specific gravity liquid so that described first and second plastic foil layer distributed.
Preferably, the proportion of the specific gravity liquid of this step (e) is between described first and second plastic foil.More preferably, described first and second plastic foil is to be selected from polyethylene (polyethylene, abbreviation PE), poly terephthalic acid diethylester (polyethylene terephathalate, abbreviation PET), polyvinyl chloride (polyvinyl chloride, abbreviation PVC), o-phenyl phenol (ortho-phenyl phenol, be called for short OPP) or haloflex (polyethylene-chlorinated is called for short PEC); And be the standing time of this step (e) between 5 minutes～10 minutes.
What deserves to be mentioned is that illustrate with PE and OPP, the proportion of PE and OPP is respectively 0.93g/cm
3With 0.99g/cm
3, difference in specific gravity between the two only is 0.06g/cm
3, will seriously influence the proportion sorting result because of both difference in specific gravity are too small.In a concrete example, specific gravity liquid is to use water.And what deserves to be mentioned is that when specific gravity liquid used in the present invention must maintain appropriate rate of specific gravity, then the present invention added amount of methanol (CH in water
3OH), salt (NaCl) or calcium chloride (CaCl
2) the heavy conditioning agent of geometric ratio to be to keep the rate of specific gravity of its heavy-fluid.
Preferably, the method of the recycling of waste aluminum foil wrapper paper of the present invention also comprises a step (b ') between this step (b) and step (c), this step (b ') is that the waste aluminum foil wrapper paper of broken this one of them classification is to form most Packing paper sheets of opening; Also comprise a step (d ') between this step (d) and the step (e), this step (d ') is the described plastic foil of flushing, stir described plastic foil 2 minutes～3 minutes removing residual decomposed solution, and to described plastic foil bestow dry with remove static (static electricity); The decomposed solution of this step (c) is to be selected from acid dilute aqueous solution (diluteaqueous solution) or alkaline dilute aqueous solution.In a concrete example of the present invention, the decomposed solution of this step (c) is acid dilute aqueous solution, and should the acidity dilute aqueous solution be to be selected from nitric acid (HNO
3), sulfuric acid (H2SO
4), carbonic acid (H
2CO
3) or hydrochloric acid (HCl).In addition, be applicable to that alkaline dilute aqueous solution of the present invention can be the hydroxide (hydroxide) that contains alkali gold (alkali) family's element or alkaline earth (alkali earth) family's element, for example, NaOH (NaOH), potassium hydroxide (KOH), magnesium hydroxide [Mg (OH)
2] etc.
What deserves to be mentioned is, whether the chemical reaction degree between acid dilute aqueous solution and the aluminium foil intermediate layer is complete, mainly can involve the concentration of acid dilute aqueous solution, the volume of acidic aqueous solution, the process parameter such as volume (process parameter) in aluminium foil intermediate layer; Therefore, for making the decomposed solution of this step (c) intactly be dissolved described aluminium foil intermediate layer, more preferably, the concentration of this acidity dilute aqueous solution is between 0.15M～0.35M; The area that each of this step (b ') is opened Packing paper sheet is between 1.5 centimeters square (square)～2.5 are centimeter square.Again more preferably, the reaction temperature of this step (c) is between 40 ℃～60 ℃; The reaction time of this step (c) is between 30 minutes～90 minutes.
In addition, this step (e) is still residual afterwards specific gravity liquid owing to finish, and the secondary source material of mainly being brought as recycling via the plastic foil of specific gravity liquid hierarchical classification uses; Therefore, the method of the recycling of waste aluminum foil wrapper paper of the present invention in this step (e) afterwards, also comprise a step (e ') and a step (e ") in regular turn; and this step (e ') be classification, cleaning, dry described plastic foil, this step (e ") be with classification, cleaning and dried plastic foil class wrapping.
About addressing other technology contents, characteristics and effect before the present invention, in the following detailed description that cooperates with reference to a graphic concrete example, can clearly present.
Embodiment
One embodiment of the method for the recycling of waste aluminum foil wrapper paper of the present invention is to illustrate simply in following.
At first, classification is from reclaiming the aluminum foil wrapper paper that factory obtains, and cleaning, dry described waste aluminum foil wrapper paper.In this concrete example of the present invention, the film layer structure of employed waste aluminum foil wrapper paper is PVC/ aluminium foil intermediate layer/PE, and wherein, the proportion of PVC and PE is respectively 1.42g/cm
3With 0.93g/cm
3
Further, the waste aluminum foil wrapper paper of this concrete example is cut apart the Packing paper sheet that is broken into 1.5cm * 1.5cm～2.5cm * 2.5cm; In addition, Packing paper sheet is soaked in the decomposed solution that is installed in by reactive tank with dissolving aluminium foil intermediate layer, and causes PVC sheet and PE sheet to be peeled off.In this concrete example of the present invention, this decomposed solution is the dilute hydrochloric acid aqueous solution of concentration 0.15M～0.35M; And about respectively 40 ℃～60 ℃ and 30 minutes～90 minutes of reaction temperature and time.In addition, what deserves to be mentioned is, because in this concrete example of the present invention, its decomposition reaction mainly is exothermic reaction and will produces hydrogen (H in course of reaction
2); Therefore, in the decomposition reaction process, the reactive tank that is installed in decomposed solution is that collocation has equipment such as hydrogen discharge system and cooling system.
Take out PVC sheet and PE sheet in the autoreaction groove, utilize powerful water column that it was washed 2 minutes～3 minutes and remove residual decomposed solution, utilize powerful water column that PVC sheet and PE sheet are washed open simultaneously, further, PVC sheet and PE sheet are positioned over leave standstill about 5 minutes～10 minutes in the specific gravity liquid to cause PVC sheet and PE sheet to be layer distributed.In this concrete example of the present invention, it is 1g/cm that this specific gravity liquid is to use proportion
3Water.
At last, with PVC sheet and the classification of PE sheet, cleaning, air-dry; In addition, class wrapping offers downstream manufacturers and carries out follow-up take out back processing such as grain and handling.
What deserves to be mentioned is, in this concrete example of the present invention, the chloride that chemical reaction produced (chloride) between the dilute hydrochloric acid aqueous solution and aluminium foil intermediate layer, aluminium oxide (aluminum oxide) are recyclable as water treatment (wastewater processing) raw material, or make the catalyst (catalyst) and adsorbent (absorbent) the isoreactivity aluminium oxide that can improve Chemical Manufacture, purposes is wide and economic benefit is very high.Through above stated specification as can be known, decomposed solution used in the present invention is not only because of the recyclable problem that has reduced discharge of wastewater of utilizing again; In addition, the working power energy is few, and not only environmental protection but also cost are low again.
Conclude above-mentioned, the method of the recycling of waste aluminum foil wrapper paper of the present invention can be dealt carefully with waste aluminum foil wrapper paper to reduce environmental issue, and also can see through back processing via the plastic foil after the specific gravity liquid layer distributed and handle and give the secondary utilization again, thereby create vast economic benefit, so can reach purpose of the present invention really.
Claims (9)
1. the method for the recycling of a waste aluminum foil wrapper paper is characterized in that it may further comprise the steps:
(a) have one deck aluminium foil intermediate layer respectively with most and insert and put one deck first plastic foil in this aluminium foil intermediate layer and the waste aluminum foil wrapper paper of one deck second plastic foil is divided into most classifications;
(b) clean described waste aluminum foil wrapper paper;
(c) waste aluminum foil wrapper paper that soaks one of them classification in decomposed solution to dissolve its aluminium foil intermediate layer and to isolate its plastic foil;
(d) this decomposed solution is taken out described plastic foil certainly; And
(e) described first and second plastic foil is positioned in the specific gravity liquid so that described first and second plastic foil layer distributed.
2. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 1 is characterized in that:
The proportion of the specific gravity liquid of this step (e) is between described first and second plastic foil.
3. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 2 is characterized in that:
Described first and second plastic foil is to be selected from polyethylene (PE), poly terephthalic acid diethylester (PET), polyvinyl chloride (PVC), o-phenyl phenol (OPP) or haloflex (PEC).
4. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 2 is characterized in that:
This step (e) standing time is between 5 minutes～10 minutes.
5. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 1 is characterized in that:
Also comprise a step (b ') between this step (b) and step (c), this step (b ') is that the waste aluminum foil wrapper paper of broken this one of them classification is to form most Packing paper sheets of opening; Also comprise a step (d ') between this step (d) and the step (e), this step (d ') is the described plastic foil of flushing, stir described plastic foil 2 minutes～3 minutes removing residual decomposed solution, and to described plastic foil bestow dry with remove static; The decomposed solution of this step (c) is to be selected from acid dilute aqueous solution or alkaline dilute aqueous solution.
6. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 5 is characterized in that:
The decomposed solution of this step (c) is acid dilute aqueous solution, and should the acidity dilute aqueous solution be to be selected from nitric acid, sulfuric acid, carbonic acid or hydrochloric acid.
7. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 6 is characterized in that:
The concentration of this acidity dilute aqueous solution is between 0.15M～0.35M; The area that each of this step (b ') is opened Packing paper sheet is between 1.5 centimeters square～2.5 are centimeter square.
8. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 7 is characterized in that:
The reaction temperature of this step (c) is between 40 ℃～60 ℃; The reaction time of this step (c) is between 30 minutes～90 minutes.
9. the method for the recycling of waste aluminum foil wrapper paper as claimed in claim 1 is characterized in that:
Also comprise a step (e ') and a step (e ") afterwards in regular turn in this step (e), and this step (e ') be classification, cleaning, dry described plastic foil, this step (e ") be with classification, cleaning and dried plastic foil class wrapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101458958A CN101380787A (en) | 2007-09-05 | 2007-09-05 | Recovery recycling method of waste aluminum foil wrapper paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101458958A CN101380787A (en) | 2007-09-05 | 2007-09-05 | Recovery recycling method of waste aluminum foil wrapper paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101380787A true CN101380787A (en) | 2009-03-11 |
Family
ID=40460927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101458958A Pending CN101380787A (en) | 2007-09-05 | 2007-09-05 | Recovery recycling method of waste aluminum foil wrapper paper |
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| Country | Link |
|---|---|
| CN (1) | CN101380787A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172929A (en) * | 2011-12-21 | 2013-06-26 | 莲成工业有限公司 | Plastic and wood composite material composite material and production method |
| CN103328105A (en) * | 2010-11-29 | 2013-09-25 | 皇廷绿色科技有限公司 | Recycling of plastic laminates |
| CN109261688A (en) * | 2018-08-31 | 2019-01-25 | 曲靖宏程工贸有限公司 | A kind of recovery processing technique of discarded aluminum foil composite paper |
| CN112871953A (en) * | 2020-12-24 | 2021-06-01 | 东海县宏巨金属材料有限公司 | Oxide layer removing device for waste aluminum recovery and implementation method thereof |
| CN117021420A (en) * | 2023-10-08 | 2023-11-10 | 国能龙源环保有限公司 | Method for recycling bassa wood from waste wind power blades |
-
2007
- 2007-09-05 CN CNA2007101458958A patent/CN101380787A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328105A (en) * | 2010-11-29 | 2013-09-25 | 皇廷绿色科技有限公司 | Recycling of plastic laminates |
| CN103172929A (en) * | 2011-12-21 | 2013-06-26 | 莲成工业有限公司 | Plastic and wood composite material composite material and production method |
| CN109261688A (en) * | 2018-08-31 | 2019-01-25 | 曲靖宏程工贸有限公司 | A kind of recovery processing technique of discarded aluminum foil composite paper |
| CN112871953A (en) * | 2020-12-24 | 2021-06-01 | 东海县宏巨金属材料有限公司 | Oxide layer removing device for waste aluminum recovery and implementation method thereof |
| CN112871953B (en) * | 2020-12-24 | 2022-08-16 | 东海县宏巨金属材料有限公司 | Oxide layer removing device for waste aluminum recovery and implementation method thereof |
| CN117021420A (en) * | 2023-10-08 | 2023-11-10 | 国能龙源环保有限公司 | Method for recycling bassa wood from waste wind power blades |
| CN117021420B (en) * | 2023-10-08 | 2024-02-02 | 国能龙源环保有限公司 | Method for recycling bassa wood from waste wind power blades |
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Open date: 20090311 |