DE19703104A1 - Recycling of the polycarbonate content of compact discs - Google Patents
Recycling of the polycarbonate content of compact discsInfo
- Publication number
- DE19703104A1 DE19703104A1 DE1997103104 DE19703104A DE19703104A1 DE 19703104 A1 DE19703104 A1 DE 19703104A1 DE 1997103104 DE1997103104 DE 1997103104 DE 19703104 A DE19703104 A DE 19703104A DE 19703104 A1 DE19703104 A1 DE 19703104A1
- Authority
- DE
- Germany
- Prior art keywords
- disk
- polycarbonate
- residues
- particle beam
- energy beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0428—Jets of high pressure fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING 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
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING 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
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING 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
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/08—Transition metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
- B29L2009/005—Layered products coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Trennen von Polycarbonat und Reststoffen welche bei der Produktion von Datenträgerplatten verwendet werden.The invention relates to a method and an apparatus for separating Polycarbonate and residues used in the production of Disk disks are used.
Unter einer Datenträgerplatte werden CD-ROMs, Audio-CDs oder andere Platten verstanden welche Information in digitaler oder anderer Form, veränderbar oder unveränderbar abspeichern.Under a disk there are CD-ROMs, audio CDs or others Disks understood what information in digital or other form, save changeable or unchangeable.
Derartige Datenträgerplatten bestehen aus einem Verbund von verschiedenen Materialien welche es gilt durch die Erfindung zu trennen.Such disk plates consist of a composite of different materials that need to be separated by the invention.
Bei den Materialien handelt es sich im wesentlichen um Polycarbonat welches einen sehr hohen Recyclingwert besitzt, Aluminium, welches ebenfalls einen hohen materiellen Wert hat und Lacken, welche als Abfallstoffe nicht mehr nützbar sind.The materials are essentially polycarbonate has a very high recycling value, aluminum, which also has a has high material value and varnishes, which are no longer waste materials are useful.
Momentan werden Datenträgerplatten überhaupt nicht oder auf chemischem Weg recycelt. Dabei werden die Datenträgerplatten in einem Lösungsmittel aufgelöst, die Aluminium und Lackanteile von dem gelösten Polycarbonat getrennt und die Lösung anschließend wieder eingedampft um das Polycarbonat zu erhalten. Dieses Verfahren ist aufwendig und umweltbelastend.Currently, disk drives are not at all or on chemical Recycled away. The disk drives are in a solvent dissolved the aluminum and paint parts from the dissolved polycarbonate separated and then evaporated the solution again around the Get polycarbonate. This process is complex and polluting the environment.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der Eingangs beschriebenen Art zu entwickeln, welches eine umweltschonende Methode ist, wobei möglichst wenig Wertstoff, in diesem Fall Polycarbonat, verloren geht und welches noch dazu kostengünstig ist.The invention is therefore based on the object, a method and a To develop device of the type described, which a is an environmentally friendly method, with as little recyclable material as possible Case polycarbonate, is lost and which is also inexpensive.
Hierbei werden die Reststoffe auf mechanischem oder thermischen Wege vom Polycarbonat getrennt.Here, the residues are removed mechanically or thermally separated from the polycarbonate.
Das von Reststoffen befreite Polycarbonat ist ein sehr hochwertiger Recyclingstoff welcher absolut sortenrein ist.The polycarbonate, which is free of residues, is a very high quality Recycled material which is completely sorted.
Die angesprochenen Verfahren sind mit bekannten technischen Mitteln preisgünstig realisierbar.The methods mentioned are using known technical means affordable to implement.
Vorteilhaft ist es, wenn bei dem erfindungsgemäßen Verfahren der Anteil des Nutzmaterials, in diesem Fall Polycarbonat, möglichst wenig Volumenverlust erleidet, wenn der Reststoff von ihm getrennt wird.It is advantageous if the proportion of Usable material, in this case polycarbonate, as little volume loss as possible suffers when the residue is separated from it.
Der Reststoff welcher aus Aluminium und Lack besteht kann in einer Schmelze geschmolzen werden und das Aluminium ist wieder verwertbar.The residual material, which consists of aluminum and lacquer, can be combined in one Melt are melted and the aluminum is recyclable.
Werden sogenannte CD-Rs, beschreibbare Datenträgerplatten, in dem vorher beschriebenen Verfahren recycelt, dann bestehen die Reststoffe zum großen Teil aus Gold, welches einen sehr hohen Wert besitzt. Are so-called CD-Rs, writable disk, in the previous recycled processes described, then the residues exist for large Part made of gold, which has a very high value.
Wie beschrieben ist ein besonderer Augenmerk auf die hohe Ausbeute des Nutzmaterials zu legen. Im Folgenden sind die gewichteten Vorteile der einzelnen Ansprüche dargelegt.As described, special attention is paid to the high yield of the To lay useful material. The following are the weighted benefits of individual claims set out.
Die Dicken der Datenträgerplatten können von Hersteller zu Hersteller unterschiedlich sein. Im Bereich der Produktionstoleranzen ist dies zulässig. Es ist also notwendig, um eine möglichst hohe Ausbeute des Nutzmateriales zu erzielen, wirklich nur die Restmaterialien abzutrennen. Dazu ist eine konstante Dickenmessung der Datenträgerplatten notwendig und die zum Abtrennen verwendeten Mechaniken müssen konstant nachgeregelt werden.The thickness of the disk plates can vary from manufacturer to manufacturer be different. This is permissible in the area of production tolerances. It is therefore necessary to obtain the highest possible yield of the useful material to achieve, really only to separate the residual materials. There is one constant thickness measurement of the data carrier plates necessary and for Mechanics used must be constantly readjusted.
Die mechanische Trennung mittels fräsen, schleifen, polieren, Span abheben, etc. Ist mit gängigen Maschinen realisierbar. Bei diesem Verfahren ist der Verlust von Polycarbonat sehr hoch, da eine schnelle Einstellung der Fräser auf Grund der hohen Trägheit nicht oder nur sehr langsam durchführbar ist. Dies reduziert den Durchsatz und die Verarbeitungsgeschwindigkeit, als Vorteil sind hier die geringeren Investitionskosten zu sehen.Mechanical separation by milling, grinding, polishing, chip removal, etc. Can be realized with common machines. In this procedure, the Loss of polycarbonate is very high because of a quick adjustment of the milling cutters due to the high inertia, it can only be carried out very slowly. This reduces throughput and processing speed when The advantage here is the lower investment costs.
Die thermische Trennung mittels Energiestrahlen hat hier Vorteile. Die Regelung von Energiestrahlen ist sehr einfach durch bekannte Methoden lösbar. Diese Regelungen können nahezu trägheitslos erfolgen. Jedoch wird auch bei diesem Verfahren noch ein geringer Teil des Nutzmaterials mit abgetrennt.Thermal separation using energy beams has advantages here. The Regulation of energy rays is very simple using known methods solvable. These regulations can be made almost without inertia. However Even with this method, a small part of the useful material is also included severed.
Die Trennung mittels Teilchenstrahl hat die meisten Vorteile. Eine Regelung ist bei der Wahl von geeigneten Strahl-Partikeln nicht nötig. Wird Gas oder Flüssigkeit verwendet und die Energie richtig bemessen, so wird das Aluminium mit den Lacken vom Polycarbonat abgelöst, ohne daß eine Regelung nötig ist und ohne daß Polycarbonat verloren geht. Particle beam separation has the most advantages. A regulation is not necessary when choosing suitable jet particles. Will gas or If liquid is used and the energy is measured correctly, this will be the case Aluminum with the paints detached from the polycarbonate without a Regulation is necessary and without losing polycarbonate.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is described in more detail below.
Es zeigtIt shows
Fig. 1 Eine CD in Vergrößerung im Querschnitt mit der Bezeichnung der einzelnen Materialschichten. Fig. 1 A CD in enlargement in cross section with the designation of the individual material layers.
Fig. 2 Eine CD nach teilweiser Bearbeitung durch das Verfahren nach Anspruch 2. Fig. 2 A CD after partial treatment by the method of claim 2.
Fig. 3 Eine CD nach teilweiser Bearbeitung durch das Verfahren nach Anspruch 3. Fig. 3 A CD after partial treatment by the process of claim 3.
Fig. 4 Eine CD nach teilweiser Bearbeitung durch das Verfahren nach Anspruch 4. Fig. 4 A CD after partial treatment by the method of claim 4.
Die in Fig. 2 gezeigte Vorrichtung besteht im wesentlichen aus einer Transportvorrichtung 1 welche die Datenträgerplatte 2 unter dem rotierenden Teil 3 vorbei bewegt. Das rotierende Teil ist in diesem Beispiel ein Fräser, welcher die Reststoffe (siehe Fig. 1, 2 + 3) vom restlichen Polycarbonatteil (siehe Fig. 1, 1) der Datenträgerplatte 2 abschabt. Wie bereits angesprochen, kann der Fräser unter Einsatz einer speziellen Mechanik in der Höhe nachgeregelt werden um produktionsabhängige Dickentoleranzen der Datenträgerplatten 2 auszugleichen, um dadurch einen möglichst geringen Verlust an Polycarbonat (siehe Fig. 1, 1) zu erzielen.The device shown in FIG. 2 essentially consists of a transport device 1 which moves the data carrier plate 2 under the rotating part 3 . In this example, the rotating part is a milling cutter which scrapes off the residues (see FIGS. 1, 2 + 3) from the remaining polycarbonate part (see FIGS. 1, 1) of the data carrier plate 2 . As already mentioned, the height of the milling cutter can be readjusted using a special mechanism in order to compensate for the production-dependent thickness tolerances of the data carrier plates 2 , in order to achieve the lowest possible loss of polycarbonate (see FIGS. 1, 1).
Die in Fig. 3 gezeigte Vorrichtung besteht im wesentlichen aus einer Transportvorrichtung 1 welche die Datenträgerplatte 2 unter dem Energiestrahl 3 vorbei bewegt. Der Energiestrahl ist in diesem Beispiel ein hoch energetischer Laserstrahl 3 welcher parallel zur Datenträgerplatte 2 angebracht ist. Der hoch energetische Laserstrahl verdampft die Reststoffe (Fig. 1, 2 + 3) und läßt das Polycarbonat (Fig. 1, 1) zurück. Der Laserstrahl 3 kann über eine Spiegelmechanik an die produktionsabhängigen Dicketoleranzen einfach angepaßt werden, damit wird eine möglichst hohe Ausbeute des Polycarbonats erreicht.The device shown in FIG. 3 essentially consists of a transport device 1 which moves the data carrier plate 2 past under the energy beam 3 . In this example, the energy beam is a high-energy laser beam 3 which is attached parallel to the data carrier plate 2 . The high-energy laser beam evaporates the residues ( Fig. 1, 2 + 3) and leaves the polycarbonate ( Fig. 1, 1). The laser beam 3 can be easily adapted to the production-dependent thickness tolerances via a mirror mechanism, so that the highest possible yield of the polycarbonate is achieved.
Die in Fig. 4 gezeigte Vorrichtung besteht im wesentlichen aus einer Transportvorrichtung 1 welche die Datenträgerplatte 2 unter dem Gas- oder Flüssigkeits-Hochdruckstrahl vorbei bewegt. Der Hochdruckstrahl trennt die Reststoffe (Fig. 1, 2 + 3) von dem Polycarbonat (Fig. 1, 1). Eine Regelung des Hochdruckstrahls wie vor beschrieben ist hier kaum notwendig.The device shown in FIG. 4 essentially consists of a transport device 1 which moves the data carrier plate 2 past under the gas or liquid high-pressure jet. The high pressure jet separates the residues ( Fig. 1, 2 + 3) from the polycarbonate ( Fig. 1, 1). A regulation of the high pressure jet as described before is hardly necessary here.
Claims (32)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997103104 DE19703104A1 (en) | 1997-01-29 | 1997-01-29 | Recycling of the polycarbonate content of compact discs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997103104 DE19703104A1 (en) | 1997-01-29 | 1997-01-29 | Recycling of the polycarbonate content of compact discs |
Publications (1)
Publication Number | Publication Date |
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DE19703104A1 true DE19703104A1 (en) | 1998-07-30 |
Family
ID=7818614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997103104 Withdrawn DE19703104A1 (en) | 1997-01-29 | 1997-01-29 | Recycling of the polycarbonate content of compact discs |
Country Status (1)
Country | Link |
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DE (1) | DE19703104A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19940808A1 (en) * | 1999-08-27 | 2001-03-01 | Newcycle Kunststofftechnik Gmb | Removal of a surface layer from a substrate layer on an information-carrying disc by machining involves applying pressure to the upper side of discs moving on a conveyer belt |
DE10000566A1 (en) * | 2000-01-08 | 2001-07-26 | Messer Griesheim Gmbh | Recycling of surface coated plastic components, e.g. lacquered car parts, involves loosening bond of coating followed by its removal by cryogenic treatment |
EP1302966A1 (en) * | 2001-10-09 | 2003-04-16 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for removing film and method for manufacturing display panel |
DE10080895B4 (en) * | 1999-03-30 | 2006-05-18 | Taiyo Yuden Co., Ltd. | Method and apparatus for disposing of an optical disk |
EP1707334A1 (en) * | 2004-01-21 | 2006-10-04 | Orient Instrument Computer Co., Ltd | Method for recycling optical disc, resin molded article, and recycled optical disc |
DE102006024209A1 (en) * | 2006-05-23 | 2007-11-29 | Steag Hamatech Ag | Method for releasing substrate wafer from combination of two substrate wafers has adhesive layer placed between them, involves applying of pressure with separating device against lateral edges of one of two substrate wafers |
EP2095925A1 (en) * | 2008-02-28 | 2009-09-02 | Optical Media Group S.P.A. | Process for recycling polycarbonate supports and relative apparatus |
DE102008047675A1 (en) * | 2008-06-13 | 2009-12-24 | Jenoptik Automatisierungstechnik Gmbh | Recycling process for thin-film solar cell modules |
WO2022218481A1 (en) | 2021-04-16 | 2022-10-20 | Wolfram Palitzsch | Method and device for separating multilayer composite materials |
DE102022109249A1 (en) | 2022-04-14 | 2023-10-19 | Wolfram Palitzsch | Method and device for separating multilayer composite materials |
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DE3511711A1 (en) * | 1985-03-29 | 1986-10-02 | Polygram Gmbh, 2000 Hamburg | Reprocessing high-quality plastics from wastes and reject workpieces |
US5167721A (en) * | 1989-11-27 | 1992-12-01 | United Technologies Corporation | Liquid jet removal of plasma sprayed and sintered |
DE4123199A1 (en) * | 1991-07-12 | 1993-01-21 | Georg Witt | Mechanical removal of surface layers from compact disc base - using tool that is moved across surface of disc securely held in carrier with depth of cut equal to layer thickness |
DE4205390A1 (en) * | 1992-02-21 | 1993-08-26 | Polygram Record Service Gmbh | METHOD FOR REMOVING A REFLECTIVE LAYER FROM A RECORDING CARRIER, AND DEVICE FOR CARRYING OUT THIS METHOD |
DE4340595A1 (en) * | 1993-11-29 | 1995-06-01 | Legner Eckhardt | Milling appts. for compact disc coating removal |
DE4403173A1 (en) * | 1994-02-02 | 1995-08-03 | Warner Music Mfg Europa Gmbh | Process for stripping metallized, plate-shaped information carriers |
US5500072A (en) * | 1994-10-17 | 1996-03-19 | Mitsubishi Chemical America, Inc. | Method and apparatus for recycling metal sheet-thermoplastic resin laminate composites |
DE19539699A1 (en) * | 1995-10-25 | 1997-04-30 | Siemens Solar Gmbh | Economical refurbishment of photovoltaic solar modules |
DE19548213A1 (en) * | 1995-12-22 | 1997-06-26 | Agr Gmbh | Recycling of electronic circuit boards with circuit tracks |
-
1997
- 1997-01-29 DE DE1997103104 patent/DE19703104A1/en not_active Withdrawn
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DE3511711A1 (en) * | 1985-03-29 | 1986-10-02 | Polygram Gmbh, 2000 Hamburg | Reprocessing high-quality plastics from wastes and reject workpieces |
US5167721A (en) * | 1989-11-27 | 1992-12-01 | United Technologies Corporation | Liquid jet removal of plasma sprayed and sintered |
DE4123199A1 (en) * | 1991-07-12 | 1993-01-21 | Georg Witt | Mechanical removal of surface layers from compact disc base - using tool that is moved across surface of disc securely held in carrier with depth of cut equal to layer thickness |
WO1994006608A1 (en) * | 1991-07-12 | 1994-03-31 | Georg Witt | Process and device for mechanically removing a layer from the substrate material of a disk-shaped information carrier |
DE4205390A1 (en) * | 1992-02-21 | 1993-08-26 | Polygram Record Service Gmbh | METHOD FOR REMOVING A REFLECTIVE LAYER FROM A RECORDING CARRIER, AND DEVICE FOR CARRYING OUT THIS METHOD |
WO1993016855A1 (en) * | 1992-02-21 | 1993-09-02 | Polygram Manufacturing & Distribution Centres Gmbh | Process and device for removing a reflecting layer from a recording medium |
DE4340595A1 (en) * | 1993-11-29 | 1995-06-01 | Legner Eckhardt | Milling appts. for compact disc coating removal |
DE4403173A1 (en) * | 1994-02-02 | 1995-08-03 | Warner Music Mfg Europa Gmbh | Process for stripping metallized, plate-shaped information carriers |
US5500072A (en) * | 1994-10-17 | 1996-03-19 | Mitsubishi Chemical America, Inc. | Method and apparatus for recycling metal sheet-thermoplastic resin laminate composites |
DE19539699A1 (en) * | 1995-10-25 | 1997-04-30 | Siemens Solar Gmbh | Economical refurbishment of photovoltaic solar modules |
DE19548213A1 (en) * | 1995-12-22 | 1997-06-26 | Agr Gmbh | Recycling of electronic circuit boards with circuit tracks |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10080895B4 (en) * | 1999-03-30 | 2006-05-18 | Taiyo Yuden Co., Ltd. | Method and apparatus for disposing of an optical disk |
DE19940808A1 (en) * | 1999-08-27 | 2001-03-01 | Newcycle Kunststofftechnik Gmb | Removal of a surface layer from a substrate layer on an information-carrying disc by machining involves applying pressure to the upper side of discs moving on a conveyer belt |
DE19940808C2 (en) * | 1999-08-27 | 2002-10-31 | Newcycle Kunststofftechnik Gmb | Process for machining a surface layer of an information carrier disc |
DE10000566A1 (en) * | 2000-01-08 | 2001-07-26 | Messer Griesheim Gmbh | Recycling of surface coated plastic components, e.g. lacquered car parts, involves loosening bond of coating followed by its removal by cryogenic treatment |
EP1302966A1 (en) * | 2001-10-09 | 2003-04-16 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for removing film and method for manufacturing display panel |
US6800008B2 (en) | 2001-10-09 | 2004-10-05 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for removing film and method for manufacturing display panel |
EP1707334A1 (en) * | 2004-01-21 | 2006-10-04 | Orient Instrument Computer Co., Ltd | Method for recycling optical disc, resin molded article, and recycled optical disc |
EP1707334A4 (en) * | 2004-01-21 | 2007-03-28 | Orient Instr Comp Co Ltd | Method for recycling optical disc, resin molded article, and recycled optical disc |
DE102006024209A1 (en) * | 2006-05-23 | 2007-11-29 | Steag Hamatech Ag | Method for releasing substrate wafer from combination of two substrate wafers has adhesive layer placed between them, involves applying of pressure with separating device against lateral edges of one of two substrate wafers |
EP2095925A1 (en) * | 2008-02-28 | 2009-09-02 | Optical Media Group S.P.A. | Process for recycling polycarbonate supports and relative apparatus |
DE102008047675A1 (en) * | 2008-06-13 | 2009-12-24 | Jenoptik Automatisierungstechnik Gmbh | Recycling process for thin-film solar cell modules |
US7972473B2 (en) | 2008-06-13 | 2011-07-05 | Jenoptik Automatisierungstechnik Gmbh | Method for recycling thin-film solar cell modules |
DE102008047675B4 (en) * | 2008-06-13 | 2014-05-15 | Ctf Solar Gmbh | Recycling process for thin-film solar cell modules |
WO2022218481A1 (en) | 2021-04-16 | 2022-10-20 | Wolfram Palitzsch | Method and device for separating multilayer composite materials |
DE102021109591A1 (en) | 2021-04-16 | 2022-10-20 | Wolfram Palitzsch | Process and device for separating multilayer composite materials |
DE102021109591B4 (en) | 2021-04-16 | 2023-01-19 | Wolfram Palitzsch | Process and device for separating multilayer composite materials |
DE102022109249A1 (en) | 2022-04-14 | 2023-10-19 | Wolfram Palitzsch | Method and device for separating multilayer composite materials |
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