TW533096B - Method for separating and recycling aluminum plastic (paper) composite packaging material - Google Patents

Method for separating and recycling aluminum plastic (paper) composite packaging material Download PDF

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Publication number
TW533096B
TW533096B TW91120815A TW91120815A TW533096B TW 533096 B TW533096 B TW 533096B TW 91120815 A TW91120815 A TW 91120815A TW 91120815 A TW91120815 A TW 91120815A TW 533096 B TW533096 B TW 533096B
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Taiwan
Prior art keywords
paper
plastic
aluminum
composite packaging
packaging material
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TW91120815A
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English (en)
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Jau-Guo Huang
Jung-Shing Shau
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Fgd Recycling Ind Co Ltd
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Priority to TW91120815A priority Critical patent/TW533096B/zh
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Publication of TW533096B publication Critical patent/TW533096B/zh
Priority to JP2003293798A priority patent/JP2004098056A/ja
Priority to US10/649,987 priority patent/US20040129372A1/en
Priority to KR1020030062076A priority patent/KR20040024473A/ko
Priority to CH01541/03A priority patent/CH696295A5/de
Priority to DE2003141878 priority patent/DE10341878A1/de

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/02Recovery or working-up of waste materials of solvents, plasticisers or unreacted monomers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/06Recovery or working-up of waste materials of polymers without chemical reactions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • B29B2017/0213Specific separating techniques
    • B29B2017/0293Dissolving the materials in gases or liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04Disintegrating plastics, e.g. by milling
    • B29B2017/0424Specific disintegrating techniques; devices therefor
    • B29B2017/0436Immersion baths
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12Paper, e.g. cardboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products
    • B29L2009/003Layered products comprising a metal layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/707Cables, i.e. two or more filaments combined together, e.g. ropes, cords, strings, yarns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7162Boxes, cartons, cases
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11Methods of delaminating, per se; i.e., separating at bonding face

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • ing And Chemical Polishing (AREA)

Description

經濟部智慧財產局員工消費合作社印製 533096 A7 r-------- B7 五、發明說明(/) 本發明係關於一種利用鋁塑(紙)複合包裝材料之分離 回收方法,尤指一種利用以含有硝酸溶液浸泡鋁塑(紙)複 合包裝材料,以分離鋁塑(紙)複合包裝材料所具有各種原 料之濕式分離再利用方法。 鋁塑(紙)複合包裝材料之用途很廣,其材料為鋁箔與 塑膠薄膜或紙類相互結合而成,利用鋁箔層具有阻光恆溫 的斗寸性,對於容易變質的被包裝物來說,具有極佳的保存 效果、纟工¥運用於食品、藥品、化學品、日用品及各種需 要,免日照變質之物品,同時因為製作成本不高,因此被 大里的製造應用,例如最常見的飲料包裝「利樂包」為例 ,其外層為一可用於印刷商品圖案之紙層,中間部份為一 阻光隔熱的銘羯層,内部則為一層防止銘謂與被包裝物接 觸之聚乙稀塑膠層,各層介面之間以高週波或熱壓合方式 ’讓塑膠層的接合面炼融而㈣箔表面所形成穩定的三氧 化二鋁相黏結,即構為鋁塑(紙)複合包裝材料。 I 土(、、、氏)複a包I材料之結合強度極佳,在回收處理 時,難以將銘質層與塑膠層完全分離,造成難以回收再利 用的# ID為塑(紙)複合包裝材料之應用極為廣泛 ’ ·因此產生的廢棄物量相當大,若無法有效回收再利用, 不僅曰xe成%保方面的一大問題,並且造成資源的嚴重浪 費。 文限於銘質層與塑膠層難以分離的問題,目前對於銘 !複口包衣材料大都是直接以廢棄物方式處理,最多只能 利用-種物理性的乾式分離回收處理方 <,將鋁塑 本紙張尺用中國國家標準(CNS)A4規+17½ >< 297公 (請先閱讀背面之注意事項再填寫本頁) I 1 I I I 1 ! ^ — 1·ιιι1ι - I — — — 1 — — — — — — — I — — — — — — I ί I . 經濟部智慧財產局員工消費合作社印製 533096 A7 ---—---— R7_ 五、發明說明(Z ) 匕衣材料利用機械打成碎屑,讓|g箔與塑膠層或紙層受 到攪打的力Ϊ分離。惟這樣的分離回收方式,不僅作業麻 煩:處理成本高,並且往往會在㈣碎片上殘留有些許的 土膠層(紙層)’或者是在塑膠(紙)碎片上殘留些許的鋁箔 層迨成回收純度差及回收價值不高等問題。 因此,本發明主要目的在提供一種鋁塑(紙)複合包裝 t料之分離回收方法,其可藉由化學性的硝酸溶液穿透塑 膠層或紙層而侵蝕鋁箔層結合面之鋁氧化物(八12〇3)層,將 鋁塑(紙)複合包裝材料之鋁質層、塑膠層或紙層完整且完 全分離的效果,達到讓鋁塑(紙)複合包裝材料所具有的各 種材料能夠有效的回收再利用。 為達到上述目的,本發明紹塑(紙)複合包裝材料之分 離回收方法所採用的技術手段包括: 將收集的無塑(紙)複合包裝材料置入具剝離劑的剝離 槽中’ ό亥剝離劑為至少含有石肖酸成份之酸性溶液,並可選 擇性添加乙酸溶液及鱗酸溶液等成份。經過浸泡後,剝離 劑的酸性溶液成份會穿透鋁塑(紙)複合包裝材料表面的塑 膠層或紙層’並侵钱铭箔層結合面之銘氧化物層,讓各材 料層完整且完全的分離,再經過瀝乾、清洗及中和洗滌等 處理後’即可以將鋁塑(紙)複合包裝材料的各層材料,分 類回收集中再利用。 本發明利用硝酸分子可滲透塑膠層或紙層而溶解鋁箔 表面鋁氧化物界面的特性,將各材料層完整且完全地分離 ,有效地達到回收高純度材料再利用之目的,並且不需耗 4 本紙張&度適用中國國家標準(CNS)A4規格(210 X 297公釐) (請先閱讀背面之注意事項再填寫本頁) 一-°4I n i»i n· n i —M I κ ϋ I n n n n an I I n n n n n n n n I i A7五、發明說明( 費太多的能源 業應用價值。 為使 貴審杳委g進—步了 一女貝退〆Γ解則述發明目的及技術特 徵,茲詳細說明如后: τ荷 (一) 圖式簡單說明: 第一圖係本發明之實施流程圖。 第二圖係本發明之設備配置示意圖。 (二) 圖號部份: 郎 省處理成本,深具經濟性及有效性的產 (1 )吊浸天車 (3 )集氣罩 (5 )清洗槽 (7 )中和洗滌槽 經濟部智慧財產局員工消費合作社印製 (2 )剝離槽 (4 )集水槽 (6 )南壓清洗機 (8 )卸載盤 4有關本發明之鋁塑(紙)複合包裝材料之分離回收方法 明芩閱第一、二圖,其具體的實施步驟包括有: 浸泡剝離··將收集待處理的的鋁塑(紙)複合包裝材料 $置於吊浸天車⑴下方的吊籃〔圖中未示〕中,並垂 降入放置浸泡於相對應剝離槽(2 )的剝離劑中,該剝離 劑為含有硝酸成份之酸性溶液,其溶液濃度約為15%〜6戕 左右,並可選擇性添加乙酸、磷酸溶液,能夠讓鋁塑(紙) 複合包裝材料剝離之效果更佳;本發明可以在浸泡剝離時 進行加煞,加熱溫度約為4〇 °c〜70 °C之間,可以加速剝離 月丨牙透剝離反應的進行,並於剝離槽(2 )上方設置有集 氣罩(3 ),可以將處理過程產生的有毒氣體集中抽送到 廢氣廢水處理設備進行處理。 5 家標準(CNS)A4 射^7210 x 297 公复) (請先閱讀背面之注意事項再填寫本頁} • . I -----訂---- -----丨· 533096 五、發明說明( 遞乾:利用吊浸天車(1 ) ㈣及塑膠膜或紙層細浸泡分離的 ,將夂从』丨士 起移达到集水槽(4 )中 1111111 — — — ·— - f 11 ! (請先閱讀背面之注意事項再填寫本頁) )複賴.—錄 先行乾的1^及塑膠膜或紙層等材料, =洗槽(5),利用高清洗機(6)以水進行 溶液加以清洗去除。 面的賴剝離劑 中^洗,條·接著將經過清洗㈣洛及塑膠膜或紙層等 兀 不 用 的於超音波巾和洗㈣(7 ),利用含氫氧化納 ^生喊對石肖__進行中和,藉以便於將各剝離完 、才料分開时,避免操作者受到石肖酸的傷害,而超音 ;:將附著於各材料表層之雜質清除,因此清洗後所得之 石層塑膠層或紙層之純度高’方便於回收再利用。 ★乾燥及分類回收··將已分離且已清洗乾淨的銘塑(紙) 稷合包裝材料的各材料,移送到卸載盤(8 )進行風乾及 分類,讓鋁塑(紙)複合包裝材料的各材料層可以完整且 全的分離分類分收處理,每一種回收材料均不會混雜有 經濟部智慧財產局員Η消費合作社印製 同材料層的成份,有效地回收獲得高純度及高價值的可 材料進行再利用。 可 在本發明的處理過程中,剝離劑的硝酸成份由於其。 滲透過塑膠層(一般為聚乙烯),進入塑膠層與鋁箔層的結 合界面上,對結合界面之鋁氧化物(A12〇3)進行離溶,讓塑 膠層與铭箔層的分離。對於紙層與鋁箔層的結合界面而言 本紙張尺度適用中國國家標準(CNS)A4規格(21〇χ 297公f ) 533096 經濟部智慧財產局員工消費合作社印製 A7 五、發明說明) ,本發明剝離劑㈣酸成份亦可滲透過紙層 I呂羯層的結合界面,達到相同之分離效果。J、.'氏層吳 本發明的操作條件一般可以為:將剝 «左右,力侧設為40。。,之間 = =擇:濃度及加熱溫度,主要取決於塑闕膜的厚^ '、w剝離劑濃度為68%且加熱溫度為6〇t:時,於_ 槽浸泡的時間約為40分鐘;當剥離劑濃度為⑽且加= 度為時,於剝離槽浸泡的時間約為60分鐘。 右在不加熱的情形下’直接於剝離槽進行剝離反應, =桑作條件為:當剝離劑濃度為勝㈣,約需於剝_ :::?、日:’ §剝離劑濃度為20%〜30%時’約需於剝離槽
、/父泡15小時。由此可4〇,I 1·田此T知,加熱可以讓剝離反應的速度加 ,可以縮短剝離反應的作業時間。 、 本發明之銘塑(紙)複合包裝材料之分離回收方法,利 用賴分子可滲透過塑膠層與紙層的特性,直接穿透進入 到銘塑(紙)複合包裝材料的銘箱結合界面,並溶解結合界 面的鋁氧化物層,讓鋁箔與塑膠層或紙層可以完整且完全 地分離’達到回收高純度材料的目的。同時本發明運用力王口 熱方式加速反應縮短處理時間及程序,因此對於處理大旦 的铭塑(紙)複合包裝材料廢棄物有極佳的功效’並且不= 耗費太多的電力及能源,能節省處理成本,深具產業應 價值。 綜合上述,本發明的技術手段創新實用性,並且深呈 進步性’符合發明專利要件,爱依法提出申請。 、 本紙張尺度適用中國國家標準(CNS)A4規格咖χ挪公愛「 (請先閱讀背面之注意事項再填寫本頁) n n n n e n n n n n ϋ I I 1 I n n n I n n ϋ n n n I —ί ϋ l i m ft It n I _

Claims (1)

  1. 533096 A8 38 C8 D8 經濟部智慧財產局員工消費合作社印製 六'申請專利範圍 1、一種紹塑(紙)複合包裝材料之分離回收方法,其 係將待處理的鋁塑(紙)複合包裝材料置入剝離劑中進行浸 泡剝離處理,該剝離劑係為至少含有硝酸成份之酸性溶液 ,利用剝離劑穿透鋁塑(紙)複合包裝材料表層的塑膠膜而 進入到鋁質層的結合界面,並溶解鋁質層結合界面的鋁氧 化物,將鋁質層與塑膠膜加以分離,再依序經過清洗及乾 燥處理後,將鋁塑(紙)複合包裝材料的各層材料加以分類 回收者。 2 ·如申凊專利範圍第1項所述之链塑(紙)複合包裝 材料之分離回收方法,在浸泡剝離處理後進一步包含有: 遞乾··將已浸泡分離的鋁塑(紙)複合包裝材料瀝乾, 以除去大部份的剝離劑; 清洗:接著將瀝乾的鋁塑(紙)複合包裝材料,以水加 以清洗; 之後再進行乾燥及分類回收處理。 3 ·如申請專利範圍第2項所述之鋁塑(紙)複合包裝 材料之分離回收方法,在清洗處理後進一步進行中和洗滌 處理,其係將已分離的鋁塑(紙)複合包裝材料,利用鹼性 中和溶液進行中和洗滌,之後再進行乾燥及分類回收處理 〇 4 ·如申請專利範圍第1項所述之鋁塑(紙)複合包裝 材料之分離回收方法,其中於浸泡剝離處理過程進行加熱 以加速反應進行。 5 ·如申請專利範圍第4項所述之鋁塑(紙)複合包裝 8 木紙張尺度適用中國國家標準(CNS)A4規格(2Ι〇χ'?97公望) (請先.閱讀背面之注意事項再填寫本頁} I» IJ5 —tt 8—a»1 i— i 0 f it »RVK i 訂—— 線丨
    經濟部智慧財產局員工消費合作社印製
    項所述之鋁塑(紙)複合 剝離劑進一步選擇性包 533096 六'申請專利範圍 材料之分離回收方法,其中於浸泡剝離反應的剝離劑濃度 為15%〜68%,並且加熱溫度為仙。c〜了〇。〇。 6 ·如申請專利範圍第5項所述之鋁塑(紙)複合包裝 材料之分離回收方法’其中於浸泡剝離反應的剝離劑濃度 為68%且加熱溫度為60它時,浸泡的時間為4〇分鐘。、又 7 .如申請專利範圍第5項所述之鋁塑(紙)複合包裝 材料之分離回收方法,其中於浸泡剝離反應的剝離劑濃度 為34%且加熱溫度為65°C時,浸泡的時間為60分鐘。 8·如申請專利範圍第丄至?項中任一項所述之鋁塑 (紙)複合包裝材料之分離回收方法,其中於剝離劑進一步 每擇性包含有鱗酸溶液或乙酸溶液^ 9 ·如申請專利範圍第1項所述之鋁塑(紙)複合包裝 材料之分離回收方法,其中進行浸泡剝離反應的剝離劑濃 度為30%〜34%時’所需的浸泡時間為7小時。 1〇·如申請專利範圍第1項所述之鋁塑(紙)複合包 裝材料之分離回收方法,其中進行浸泡剝離反應的剝離劑 濃度為20%〜30%時,所需的浸泡時間為15小時。 1 1 · 一種使用於如申請專利範圍第1項所述鋁塑( 紙)複合包裝材料之分離回收方法之剝離劑,該剝離劑係為 至少含有硝酸成份之酸性潑淹1。 1 2 ·如申請專利夢 包裝材料之分離回收 含有磷酸溶液或乙酸溶液 本紙張尺度適用中國國家標準(CNS)A4規格(2]ϋ X 297公f ) (請先閱讀背面之注意事項再填寫本頁)
TW91120815A 2002-09-12 2002-09-12 Method for separating and recycling aluminum plastic (paper) composite packaging material TW533096B (en)

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JP2003293798A JP2004098056A (ja) 2002-09-12 2003-08-15 アルミニウム素材を含む複合材料の回収方法
US10/649,987 US20040129372A1 (en) 2002-09-12 2003-08-27 Separating method for recycling foil-laminated material
KR1020030062076A KR20040024473A (ko) 2002-09-12 2003-09-05 알루미늄 비닐(종이) 복합 포장재의 분리 회수 방법
CH01541/03A CH696295A5 (de) 2002-09-12 2003-09-09 Trennverfahren zum Rezyklieren von Verbundfolien.
DE2003141878 DE10341878A1 (de) 2002-09-12 2003-09-09 Trennverfahren für die Wiederverwertung von mit Folie laminiertem Material

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TWI395650B (zh) * 2010-08-12 2013-05-11 Nan Min Wu 鋁箔抗靜電袋之分離回收方法
TWI458571B (zh) * 2012-12-20 2014-11-01 Univ Far East A method for regenerating composite sheet by recycling bag
CN106381738A (zh) * 2016-09-28 2017-02-08 广西大学 一种废纸铝塑包装盒快速分离的方法

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CN106381738A (zh) * 2016-09-28 2017-02-08 广西大学 一种废纸铝塑包装盒快速分离的方法

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