JP5433519B2 - Aluminum resource recovery method from packaging material waste - Google Patents
Aluminum resource recovery method from packaging material waste Download PDFInfo
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- JP5433519B2 JP5433519B2 JP2010161297A JP2010161297A JP5433519B2 JP 5433519 B2 JP5433519 B2 JP 5433519B2 JP 2010161297 A JP2010161297 A JP 2010161297A JP 2010161297 A JP2010161297 A JP 2010161297A JP 5433519 B2 JP5433519 B2 JP 5433519B2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 61
- 229910052782 aluminium Inorganic materials 0.000 title claims description 58
- 239000005022 packaging material Substances 0.000 title claims description 37
- 239000002699 waste material Substances 0.000 title claims description 12
- 238000011084 recovery Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 6
- 239000011888 foil Substances 0.000 claims description 21
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 238000007740 vapor deposition Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 description 11
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000000758 substrate Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 3
- 150000002013 dioxins Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000010816 packaging waste Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000011141 cosmetic packaging material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000009512 pharmaceutical packaging Methods 0.000 description 1
- 239000011129 pharmaceutical packaging material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
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- Processing Of Solid Wastes (AREA)
- Coke Industry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
本発明は、アルミ層を有する包装材の廃棄物からアルミ資源を回収するためのシステムに関する。 The present invention relates to a system for recovering aluminum resources from waste packaging material having an aluminum layer.
食品包装、飲料容器、医薬品包装、化粧品包装等の多くの分野にてアルミ層を有する包装材が広く採用されている。
アルミ層を有する包装材にはフィルム基材にアルミニウムを蒸着したアルミ蒸着包装材と、アルミ箔を基材に積層したアルミ箔積層包装材が存在する。
Packaging materials having an aluminum layer are widely used in many fields such as food packaging, beverage containers, pharmaceutical packaging, and cosmetic packaging.
The packaging material having an aluminum layer includes an aluminum deposition packaging material in which aluminum is deposited on a film substrate and an aluminum foil laminated packaging material in which an aluminum foil is laminated on the substrate.
アルミ箔積層包装材は、樹脂基材にアルミ箔を積層したものの他にジュースや牛乳等の液体食品を充填する容器等に用いられる包装材には、紙基材に樹脂基材を積層し、この樹脂基材にさらにアルミ箔を積層したものがある。
これらのアルミ箔は０．５μｍ〜５μｍ程度の厚みを有する。
これに対してアルミ蒸着包装材は、アルミニウムを高真空状態で抵抗加熱や高周波加熱等により加熱蒸発させ、この蒸気をフィルム基材に付着したものであり、アルミ層の厚みが１μｍ以下であり、一般的には５ｎｍ〜２００ｎｍである。
Aluminum foil laminated packaging material, in addition to the laminated aluminum foil on the resin base material, packaging materials used for containers filled with liquid foods such as juice and milk, the resin base material is laminated on the paper base material, There is one in which an aluminum foil is further laminated on this resin base material.
These aluminum foils have a thickness of about 0.5 μm to 5 μm.
On the other hand, the aluminum vapor-deposited packaging material is one in which aluminum is heated and evaporated by resistance heating or high-frequency heating in a high vacuum state, and this vapor is attached to the film substrate, and the thickness of the aluminum layer is 1 μm or less, Generally, it is 5 nm to 200 nm.
このように、アルミ層を有する包装材にあっては、アルミ箔で０．５μｍ〜５．０μｍ、アルミ蒸着で５ｎｍ〜２００ｎｍと非常に薄いので燃焼させるとアルミが空気酸化され金属アルミとして回収できない。
そこで本出願人は、これまで特許文献１に示すように５００〜６２０℃にて乾留処理することで金属アルミを資源回収する技術を提案している。
しかし、その後の研究によりアルミ蒸着包装材にあってはアルミ箔よりもさらにアルミ層の厚みが薄く、５００〜６２０℃の温度であっても金属アルミが酸化消滅してしまうことが明らかになった。
As described above, in the packaging material having an aluminum layer, aluminum foil is very thin, 0.5 μm to 5.0 μm, and aluminum deposition is 5 nm to 200 nm. When burned, aluminum is oxidized and cannot be recovered as metallic aluminum. .
Therefore, the present applicant has so far proposed a technique for recovering metallic aluminum resources by dry distillation at 500 to 620 ° C. as shown in
However, subsequent research has revealed that in aluminum vapor-deposited packaging materials, the aluminum layer is thinner than the aluminum foil, and metal aluminum is oxidized and extinguished even at temperatures of 500 to 620 ° C. .
本発明は、包装材廃棄物から効率的にアルミ資源を回収することができる資源回収方法の提供を目的とする。 An object of the present invention is to provide a resource recovery method capable of efficiently recovering aluminum resources from packaging material waste.
本発明に係る包装材廃棄物からのアルミ資源回収方法は、回収された包装材廃棄物の中からアルミ箔が積層されたアルミ箔積層包装材とアルミ蒸着されたアルミ蒸着包装材とに分別し、前記アルミ箔積層包装材を６００〜６２０℃の温度範囲にて乾留処理し、前記アルミ蒸着包装材を２００〜３５０℃の温度範囲にて乾留処理することを特徴とする。 Aluminum resource recovery process of the packaging material waste according to the present invention, fractionated into the aluminum deposited packaging material aluminum foil is an aluminum deposited laminated aluminum foil laminated packaging material from the recovered packaging waste The aluminum foil laminated packaging material is subjected to dry distillation treatment in a temperature range of 600 to 620 ° C., and the aluminum vapor deposition packaging material is subjected to dry distillation treatment in a temperature range of 200 to 350 ° C.
ここで、前記包装材に紙層を有する場合に湿式でパルプ分を回収するパルプ回収手段を有し、当該パルプ回収手段にてパルプを回収した後にアルミ資源を回収するのが好ましい。 Here, when the packaging material has a paper layer, it is preferable to have a pulp recovery means for recovering the pulp content in a wet manner, and to recover the aluminum resources after the pulp is recovered by the pulp recovery means.
本発明で乾留処理とは、自然発火を抑えた条件下で熱分解させることをいい、空気の流入を断った状態で加熱してもよく、酸素濃度９％以下の貧酸素状態あるいは還元性ガス下の還元雰囲気で加熱すればよい。 In the present invention, the dry distillation treatment refers to thermal decomposition under the condition of suppressing spontaneous ignition, and may be heated in a state where the inflow of air is cut off. An oxygen-deficient state or reducing gas having an oxygen concentration of 9% or less. Heating may be performed in the lower reducing atmosphere.
樹脂基材にはポリエチレン、ポリプロピレン、ナイロン、セロファンの他に、ポリ塩化ビニルが存在することから、ダイオキシンの発生を抑えるためにはポリ塩化ビニルが含まれる包装材の場合には、これを分別する塩ビ分別手段を有するのが好ましい。 In addition to polyethylene, polypropylene, nylon, and cellophane, polyvinyl chloride is present in the resin base material. In order to suppress the generation of dioxins, this is separated in the case of packaging materials that contain polyvinyl chloride. It preferably has a vinyl chloride fractionating means.
本発明にあっては、アルミ箔積層包装材とアルミ蒸着包装材との分別手段を有するのでアルミ箔とアルミ蒸着とのそれぞれに最適な乾留条件にて乾留できるので金属アルミ資源の回収効率が高い。 In the present invention, since there is a means for separating the aluminum foil laminated packaging material and the aluminum vapor deposition packaging material, it is possible to dry distillation under the optimum carbonization conditions for each of the aluminum foil and the aluminum vapor deposition material, so the metal aluminum resource recovery efficiency is high. .
包装材の廃棄物としては、アルミ層を有しない紙容器（飲料用パック等）等と、アルミ層の有する飲料用パックに用いられる包装材、医薬品包装材（パッケージ）、化粧品包装材（パッケージ）等が存在する。
アルミ層を有する包装材には紙基材にアルミ箔を積層又はアルミ蒸着したもの、樹脂基材にアルミ箔を積層又はアルミ蒸着したもの、紙基材に樹脂基材を積層し、さらにアルミ箔を積層又はアルミ蒸着したもの等多くの種類が存在する。
また、樹脂基材にはポリ塩化ビニル（ＰＶＣ）のようにダイオキシン対策が必要なものと、ポリエチレンやポリプロピレン等の特にダイオキシン対策がいらないものがある。
Packaging waste includes paper containers (such as beverage packs) that do not have an aluminum layer, packaging materials used for beverage packs that have an aluminum layer, pharmaceutical packaging materials (packages), and cosmetic packaging materials (packages). Etc. exist.
For packaging materials with an aluminum layer, aluminum foil is laminated or evaporated on a paper substrate, aluminum foil is laminated or evaporated on a resin substrate, resin substrate is laminated on a paper substrate, and aluminum foil There are many types such as those laminated or vapor-deposited with aluminum.
In addition, there are resin base materials that require countermeasures against dioxins such as polyvinyl chloride (PVC), and those that do not require countermeasures against dioxins such as polyethylene and polypropylene.
多種多様の廃棄包装材が混合する中から、まず、磁性の相違により金属の有無及び金属の種類に応じて分別する電磁センサー付選別機を通過させる。
また、近赤外線センサー又は／及び色彩センサー付選別機を組み合せることで、アルミ箔付きのものとアルミ蒸着付きのものとの分別及び樹脂基材の種類毎の分別が可能である。
First, a variety of waste packaging materials are mixed. Then, the waste packaging material is first passed through a sorter with an electromagnetic sensor that sorts according to the presence or absence of metal and the type of metal depending on the difference in magnetism.
In addition, by combining a near-infrared sensor and / or a sorter with a color sensor, it is possible to separate the one with aluminum foil from the one with aluminum vapor deposition and the classification for each type of resin base material.
図１の表には、上記の分別手段にて分別した樹脂基材からなる包装材（紙基材はない）をセラミックパイプの中に投入し、空気を断った状態で所定温度、所定時間乾留処理した結果を示す。
この結果、アルミ箔付きの廃棄包装材は６００〜６２０℃、２１０〜３００分にて金属アルミを回収できるが、アルミ蒸着付き廃棄包装材は３５０℃以下にしないとアルミ成分も酸化消滅することが明らかになった。
アルミ蒸着付きの場合には、２００〜３５０℃の温度がよく、２００℃では１２０分以上、２５０〜３５０℃では９０分〜３０分でよいことも明らかになった。
なお、紙基材を積層したものにあっては、パルパー等の湿式解離装置にてパルプ分を除去した後に乾留処理するのが好ましい。
In the table of FIG. 1, the packaging material (there is no paper base material) made of the resin base material sorted by the above sorting means is put into a ceramic pipe, and is air-distilled at a predetermined temperature for a predetermined time with the air cut off. The result of processing is shown.
As a result, the waste packaging material with aluminum foil can recover metallic aluminum at 600 to 620 ° C. and 210 to 300 minutes. However, if the waste packaging material with aluminum vapor deposition is not set to 350 ° C. or less, the aluminum component may also be oxidized and extinguished. It was revealed.
In the case of with aluminum vapor deposition, the temperature of 200 to 350 ° C. is good, and it has also become clear that at 200 ° C., 120 minutes or more, and at 250 to 350 ° C., 90 minutes to 30 minutes may be sufficient.
In addition, in what laminated | stacked the paper base material, it is preferable to carry out a dry distillation process after removing a pulp content with wet dissociation apparatuses, such as a pulper.
Claims (2)
前記アルミ箔積層包装材を６００〜６２０℃の温度範囲にて乾留処理し、
前記アルミ蒸着包装材を２００〜３５０℃の温度範囲にて乾留処理することを特徴とする包装材廃棄物からのアルミ資源回収方法。 The collected packaging material waste is separated into aluminum foil laminated packaging material with aluminum foil laminated and aluminum deposited packaging material with aluminum vapor deposition ,
The aluminum foil laminated packaging material is subjected to dry distillation treatment in a temperature range of 600 to 620 ° C ,
A method for recovering aluminum resources from packaging material waste, wherein the aluminum vapor-deposited packaging material is subjected to dry distillation treatment in a temperature range of 200 to 350 ° C.
当該パルプ回収手段にてパルプを回収した後にアルミ資源を回収することを特徴とする請求項１記載の包装材廃棄物からのアルミ資源回収方法。 When the packaging material has a paper layer, it has a pulp recovery means for recovering the pulp content in a wet manner,
The method for recovering aluminum resources from packaging material waste according to claim 1, wherein the aluminum resources are recovered after the pulp is recovered by the pulp recovery means.
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| JP2014088489A (en) * | 2012-10-30 | 2014-05-15 | Tonami Transportation Co Ltd | Useful resource recovery method from aluminum resin composite material |
| JP6105900B2 (en) * | 2012-11-07 | 2017-03-29 | 高周波熱錬株式会社 | Method for recovering aluminum from packaging material containing aluminum layer and aluminum recovery apparatus using the same |
| US8973491B1 (en) * | 2013-03-15 | 2015-03-10 | Sustainable Alternative Feed Enterprises | System for processing primary food product waste into secondary food product |
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