ATE202809T1 - Magnetisches deinken von altpapier - Google Patents

Magnetisches deinken von altpapier

Info

Publication number
ATE202809T1
ATE202809T1 AT96910340T AT96910340T ATE202809T1 AT E202809 T1 ATE202809 T1 AT E202809T1 AT 96910340 T AT96910340 T AT 96910340T AT 96910340 T AT96910340 T AT 96910340T AT E202809 T1 ATE202809 T1 AT E202809T1
Authority
AT
Austria
Prior art keywords
waste paper
magnetic
pulp
removal
little
Prior art date
Application number
AT96910340T
Other languages
English (en)
Inventor
Nipun Marwah
Allen A Gold
Original Assignee
Westvaco Corp
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 Westvaco Corp filed Critical Westvaco Corp
Application granted granted Critical
Publication of ATE202809T1 publication Critical patent/ATE202809T1/de

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/288—Magnetic plugs and dipsticks disposed at the outer circumference of a recipient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/005—Forming fibrous aggregates
    • 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
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Hard Magnetic Materials (AREA)
AT96910340T 1994-01-21 1996-03-08 Magnetisches deinken von altpapier ATE202809T1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US18374694A 1994-01-21 1994-01-21
US08/238,478 US5527426A (en) 1994-01-21 1994-05-05 Magnetic deinking of waste papers
CA 2248131 CA2248131A1 (en) 1994-01-21 1996-03-08 Magnetic deinking of waste papers
PCT/US1996/002688 WO1997033036A1 (en) 1994-01-21 1996-03-08 Magnetic deinking of waste papers

Publications (1)

Publication Number Publication Date
ATE202809T1 true ATE202809T1 (de) 2001-07-15

Family

ID=40547912

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96910340T ATE202809T1 (de) 1994-01-21 1996-03-08 Magnetisches deinken von altpapier

Country Status (10)

Country Link
US (1) US5527426A (de)
EP (1) EP0885325B1 (de)
JP (1) JP3171448B2 (de)
AT (1) ATE202809T1 (de)
CA (1) CA2248131A1 (de)
DE (1) DE69613721T2 (de)
DK (1) DK0885325T3 (de)
ES (1) ES2160813T3 (de)
HK (1) HK1020077A1 (de)
WO (1) WO1997033036A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685952A (en) * 1993-04-21 1997-11-11 Owen; David Malcolm Deinking of paper using magnetic forces
EP0869218A1 (de) * 1995-05-22 1998-10-07 Westvaco Corporation Abtrennung von Klebstoffen aus Altpapier mit Hilfe von Magnetkraft
US6245195B1 (en) * 1996-03-19 2001-06-12 Westvaco Corporation Decontamination of waste papers
US5997812A (en) 1996-06-20 1999-12-07 Coolant Treatment Systems, L.L.C. Methods and apparatus for the application of combined fields to disinfect fluids
US6006920A (en) * 1997-05-09 1999-12-28 Dry Branch Kaolin Company Brightness, reduced impurity clays and methods of making same
EP1217121A1 (de) * 2000-12-04 2002-06-26 Westvaco Corporation Aufarbeitung von Altpapier
US7217368B2 (en) * 2001-12-10 2007-05-15 Clearwater Systems Corporation Method and apparatus for liquid treatment with combined electronic and centrifugal processes to remove contaminants
WO2005019349A2 (en) * 2003-08-11 2005-03-03 Imerys Kaolin, Inc. High whiteness metakaolin and high whiteness fully calcined kaolin
US7169257B2 (en) * 2003-11-12 2007-01-30 Kemira Chemicals, Inc. Method of deinking waste paper using a reduced alkali system
US7381305B2 (en) * 2005-03-25 2008-06-03 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for monitoring liquid and solid contents in a froth
US7981288B2 (en) * 2005-11-21 2011-07-19 Evapco, Inc. Pulse resonating device
JP5342479B2 (ja) * 2010-03-15 2013-11-13 合資会社オリエンタル 文書細断屑用古紙再生装置
WO2017011726A1 (en) * 2015-07-15 2017-01-19 Kimberly-Clark Worldwide, Inc. Method for clean fiber recovery from contaminated articles involving the addition of magnetic particles
CA3070125A1 (en) 2017-07-25 2019-01-31 Magnomer Llc Methods and compositions for magnetizable plastics
CN107938412A (zh) * 2017-11-21 2018-04-20 常州思宇环保材料科技有限公司 一种高效废纸脱墨装置及其应用方法

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013505A (en) * 1972-03-09 1977-03-22 Vyzkumny Ustav Papieru A Celulosy Method of deinking printed wastepapers
US4147616A (en) * 1972-03-09 1979-04-03 Vyskumny Ustav Papieru A Celulosy Of Bratislava Apparatus for deinking printed wastepapers
US4076578A (en) * 1974-10-21 1978-02-28 Canadian Patents And Development Limited Ink removal from waste paper
SE399574C (sv) * 1974-12-05 1982-05-04 Moelnlycke Ab Sett for framstellning av fluffmassa
US4203376A (en) * 1976-12-21 1980-05-20 Refuse Derived Fuels (London) Limited Treatment of waste
US4176054A (en) * 1977-05-16 1979-11-27 Kelley Joseph A Waste paper recycling
DE2750191C3 (de) * 1977-11-10 1981-04-23 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zur Aufbereitung von Altpapier
US4440635A (en) * 1979-03-29 1984-04-03 Haigh M. Reiniger Process and apparatus for the recovery of cellulose fibers from paper-plastic mixtures
US4318804A (en) * 1979-11-16 1982-03-09 Kanetsu Kogyo Kabushiki Kaisha Device for separating mixture
FR2482989A1 (fr) * 1980-05-22 1981-11-27 Interox Procede pour la regeneration de vieux papiers
JPS583073A (ja) * 1981-06-30 1983-01-08 Fujitsu Ltd バ−コ−ド読取方式
IT1155310B (it) * 1982-04-19 1987-01-28 Jean Marie Clement Procedimento per il trattamento di riciclaggio di carta stampata da macero
US4561933A (en) * 1983-10-17 1985-12-31 Shell Oil Company Xerographics deinking
DE3567971D1 (en) * 1985-06-13 1989-03-02 Ibm Deutschland Methods and arrangements for characterizing magnetic coating compositions as well as improving magnetic particle dispersions
US4820379A (en) * 1986-10-16 1989-04-11 Ppg Industries, Inc. Method for deinking wastepaper with a halogenated polyethylene oxide and a polymeric material
US5102500A (en) * 1986-10-16 1992-04-07 Ppg Industries, Inc. Method for deinking wastepaper using alkoxy capped polyethylene oxide and a polymeric material
FR2612212B1 (fr) * 1987-03-13 1990-06-29 Centre Tech Ind Papier Procede et installation pour le recyclage de vieux papiers imprimes
JPS6456156A (en) * 1987-08-26 1989-03-03 Meiwa Seishi Genryo Kk Separation and recovering method for paper pulp component from magnetic recording paper and device used therefor
US5004664A (en) * 1989-02-27 1991-04-02 Xerox Corporation Toner and developer compositions containing biodegradable semicrystalline polyesters
US4974781A (en) * 1989-03-09 1990-12-04 The Placzek Family Trust Method and apparatus for preparing paper-containing and plastic-containing waste materials for component fraction separation
DE3923393A1 (de) * 1989-07-14 1991-01-17 Henkel Kgaa Verfahren zur altpapieraufbereitung
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JPH07880B2 (ja) * 1989-12-27 1995-01-11 本州製紙株式会社 古紙の再生処理方法
US5015367A (en) * 1990-02-23 1991-05-14 The Dow Chemical Company Alkylated diaryl oxide monosulfonate collectors useful in the floatation of minerals
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US5080759A (en) * 1990-09-04 1992-01-14 Quaker Chemical Corporation Method for controlling stickies in pulp and papermaking processes using recycled paper
DE59104480D1 (de) * 1990-10-30 1995-03-16 Benckiser Knapsack Ladenburg Verfahren zur Wiedergewinnung von Fasern durch Flotationsdeinken aus Altpapier.
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US5200034A (en) * 1991-04-25 1993-04-06 Betz Paperchem, Inc. Use of surfactants having an HLB less than 10 in the deinking of dry toner electrostatic printed wastepaper
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US5213661A (en) * 1991-05-21 1993-05-25 Air Products And Chemicals, Inc. Oxygen alkali detackification in secondary fiber recovery
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers
US5227019A (en) * 1991-07-31 1993-07-13 Shell Oil Company Wastepaper deinking process
US5238538A (en) * 1991-11-25 1993-08-24 Georgia Tech Research Corporation Method for deinking recycled fiber by applying direct current electric field
US5225046A (en) * 1992-02-26 1993-07-06 Shell Oil Company Wastepaper deinking process
US5217573A (en) * 1992-04-23 1993-06-08 International Paper Company Removal of laser printer and xerographic ink from recycle paper
GB9308250D0 (en) * 1993-04-21 1993-06-02 Dotspec Ltd Improvements in or relating to deinking of paper
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CA2123328A1 (en) * 1993-12-13 1995-06-14 Kimberly-Clark Worldwide, Inc. Magnetic deinking

Also Published As

Publication number Publication date
DE69613721D1 (de) 2001-08-09
WO1997033036A1 (en) 1997-09-12
US5527426A (en) 1996-06-18
ES2160813T3 (es) 2001-11-16
DE69613721T2 (de) 2002-05-16
EP0885325A1 (de) 1998-12-23
HK1020077A1 (en) 2000-03-10
DK0885325T3 (da) 2001-09-24
JP3171448B2 (ja) 2001-05-28
EP0885325B1 (de) 2001-07-04
CA2248131A1 (en) 1997-09-12

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee