JPS5466985A - Treatment of waste magnetic tapes - Google Patents

Treatment of waste magnetic tapes

Info

Publication number
JPS5466985A
JPS5466985A JP13330377A JP13330377A JPS5466985A JP S5466985 A JPS5466985 A JP S5466985A JP 13330377 A JP13330377 A JP 13330377A JP 13330377 A JP13330377 A JP 13330377A JP S5466985 A JPS5466985 A JP S5466985A
Authority
JP
Japan
Prior art keywords
magnetic tapes
waste magnetic
treatment
waste
types
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.)
Pending
Application number
JP13330377A
Other languages
Japanese (ja)
Inventor
Noriki Banzai
Yoshiyori Saito
Haruo Yanase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zeon Corp
Original Assignee
Nippon Zeon Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Priority to JP13330377A priority Critical patent/JPS5466985A/en
Publication of JPS5466985A publication Critical patent/JPS5466985A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0004—Component parts, details or accessories; Auxiliary operations
    • B29C63/0013—Removing old coatings
    • 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
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0293—Dissolving the materials in gases or liquids
    • B29B2017/0296—Dissolving the materials in aqueous alkaline solutions, e.g. NaOH or KOH
    • 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
    • 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
    • B29L2017/008—Tapes
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

PURPOSE:To treat any types of waste magnetic tapes in the reusable form, by stripping a magnetic material layer from the base layer of a waste magnetic tape immersed in a strong alkali solution. CONSTITUTION:A waste magnetic tape is immersed in a strong alkali solution at a temperature of 25 deg.C or above, preferably 25-80 deg.C to strip the magnetic material layer from the base layer. The separated layers can be effectively used respectively. Magnetic tapes comprising any types of binder can be treated simultaneously. The concentration of the alkali is preferably 5 wt.% or higher.
JP13330377A 1977-11-07 1977-11-07 Treatment of waste magnetic tapes Pending JPS5466985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13330377A JPS5466985A (en) 1977-11-07 1977-11-07 Treatment of waste magnetic tapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13330377A JPS5466985A (en) 1977-11-07 1977-11-07 Treatment of waste magnetic tapes

Publications (1)

Publication Number Publication Date
JPS5466985A true JPS5466985A (en) 1979-05-29

Family

ID=15101501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13330377A Pending JPS5466985A (en) 1977-11-07 1977-11-07 Treatment of waste magnetic tapes

Country Status (1)

Country Link
JP (1) JPS5466985A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127958A (en) * 1990-07-11 1992-07-07 Morris Resources, Inc. Removal of metallic coatings from polymeric substrates
WO1997007952A1 (en) * 1995-08-30 1997-03-06 Emtec Magnetics Gmbh Continuous process for recovering raw materials from coated foils, device for carrying out this process and foil materials recovered thereby
US6623564B2 (en) 2000-02-22 2003-09-23 Panac Industries, Inc. Method of recovering synthetic substrates
KR100512488B1 (en) * 2002-06-26 2005-09-05 주식회사 삼우테크놀로지 Extraction method of magnetic paints and base film form magnetic tape
JP2013142100A (en) * 2012-01-10 2013-07-22 Teikyo Univ Chemical recycling method for magnetic tape with high temperature-high pressure methanol
JP2021160351A (en) * 2020-03-31 2021-10-11 三菱ケミカル株式会社 Polyester recycling system and recycling method
JP2021160350A (en) * 2020-03-31 2021-10-11 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer removal agent
JP2022095499A (en) * 2020-12-16 2022-06-28 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer remover
JP2022095599A (en) * 2020-12-16 2022-06-28 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer removal agent
JP2022095500A (en) * 2020-12-16 2022-06-28 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer removal agent

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127958A (en) * 1990-07-11 1992-07-07 Morris Resources, Inc. Removal of metallic coatings from polymeric substrates
WO1997007952A1 (en) * 1995-08-30 1997-03-06 Emtec Magnetics Gmbh Continuous process for recovering raw materials from coated foils, device for carrying out this process and foil materials recovered thereby
US6223904B1 (en) 1995-08-30 2001-05-01 Emtec Magnetics Gmbh Continuous process for recovering raw materials from coated foils, device for carrying out this process and foil materials recovered thereby
CN1073004C (en) * 1995-08-30 2001-10-17 埃姆特克磁化股份有限公司 Continuous process for recovering raw materials from coated foils, device for carrying out this process and foil materials recovered thereby
US6623564B2 (en) 2000-02-22 2003-09-23 Panac Industries, Inc. Method of recovering synthetic substrates
KR100512488B1 (en) * 2002-06-26 2005-09-05 주식회사 삼우테크놀로지 Extraction method of magnetic paints and base film form magnetic tape
JP2013142100A (en) * 2012-01-10 2013-07-22 Teikyo Univ Chemical recycling method for magnetic tape with high temperature-high pressure methanol
JP2021160351A (en) * 2020-03-31 2021-10-11 三菱ケミカル株式会社 Polyester recycling system and recycling method
JP2021160350A (en) * 2020-03-31 2021-10-11 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer removal agent
JP2021175812A (en) * 2020-03-31 2021-11-04 三菱ケミカル株式会社 Recycling system and recycling method for polyester
JP2022095499A (en) * 2020-12-16 2022-06-28 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer remover
JP2022095599A (en) * 2020-12-16 2022-06-28 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer removal agent
JP2022095500A (en) * 2020-12-16 2022-06-28 三菱ケミカル株式会社 Polyester film recovery method, recovery device, and functional layer removal agent

Similar Documents

Publication Publication Date Title
BE843957A (en) NEW OXIDIZING WATER TREATMENT PROCESS
AT349212B (en) PROCESS FOR THE PRODUCTION OF NEW WATER DISPERSIBLE POLYHYDROXYL COMPOUNDS AND THEIR USE
JPS5466985A (en) Treatment of waste magnetic tapes
ATA696179A (en) METHOD FOR THE CONTINUOUS TREATMENT OF STEEL SHEETS
JPS52138486A (en) Propanee1*33diphosphoric acid for treating water
BE861944A (en) WASTE WATER TREATMENT PROCESS
AT363929B (en) METHOD FOR THE PRODUCTION OF NEW 1,8-DIHYDROXY-10-ACYL-9-ANTHRONE FOR TREATING PSORIASIS
AT379154B (en) METHOD FOR IMPROVING THE SOLUTION OF VISCOSES
AT351019B (en) PROCESS FOR THE PREPARATION OF 2- (P-AMYLBENZOYL) -BENZOIC ACID
AT370421B (en) METHOD FOR THE PRODUCTION OF ALCALOIDS OF THE LEUROSIN TYPE AND THEIR SALTS
YU178677A (en) Process for the purification of articles subsequent to the galvanic and or chemical treatment of the surface
AT348508B (en) PROCESS FOR THE PREPARATION OF THE NEW 2- (P-ISOBUTYLPHENYL) PROPIONIC ACID GUAJACOLESTER
AT374476B (en) METHOD FOR THE PRODUCTION OF NEW PYRIDOPYRIMIDINS AND THEIR SALTS, HYDRATES AND ISOMERS
AT348254B (en) PROCESS FOR THE PRODUCTION OF MIXED POLYMERISATES OF ETHYLENE
AT366367B (en) OXIDATION PROCESS FOR THE PRODUCTION OF PYRIDINE CARBONIC ACIDS
AT346477B (en) PROCESS FOR THE MANUFACTURING OF PREPARATIONS FOR THE LOCAL TREATMENT OF ACNE VULGARIS
AT353784B (en) REDUCTION PROCESS FOR THE PRODUCTION OF TRANSDIHYDROINDOLS
AT366668B (en) METHOD FOR PRODUCING 2,6-PYRIDINE DICARBONIC ACID
DD133334A5 (en) METHOD FOR THE PRODUCTION OF MONO AND DIOLEFIN COMPOUNDS
ATA507175A (en) EQUIPMENT FOR THE PRODUCTION OF TAPES OF FILM OR MONO FILES
JPS52101856A (en) Method of treating mercuryycontained organic solution
JPS5339933A (en) Method of chemical treatment of surface of cobalt
JPS52130149A (en) Method of treating water containing ferric hydroxide
JPS52149863A (en) Treating of drainage containing sulphonic acids
JPS52105651A (en) Process for treating drain water