ZA934246B - Process for de-inking recycled paper pulp - Google Patents

Process for de-inking recycled paper pulp

Info

Publication number
ZA934246B
ZA934246B ZA934246A ZA934246A ZA934246B ZA 934246 B ZA934246 B ZA 934246B ZA 934246 A ZA934246 A ZA 934246A ZA 934246 A ZA934246 A ZA 934246A ZA 934246 B ZA934246 B ZA 934246B
Authority
ZA
South Africa
Prior art keywords
paper pulp
recycled paper
inking
inking recycled
pulp
Prior art date
Application number
ZA934246A
Other languages
English (en)
Inventor
Maurice Hache
Sheri Prosperi
Original Assignee
Morton Int Inc
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 Morton Int Inc filed Critical Morton Int Inc
Publication of ZA934246B publication Critical patent/ZA934246B/xx

Links

Classifications

    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites
    • 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
    • D21C5/027—Chemicals therefor
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
ZA934246A 1992-07-02 1993-06-15 Process for de-inking recycled paper pulp ZA934246B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9214041A GB9214041D0 (en) 1992-07-02 1992-07-02 Process for de-inking recycled paper pulp

Publications (1)

Publication Number Publication Date
ZA934246B true ZA934246B (en) 1994-03-18

Family

ID=10718066

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA934246A ZA934246B (en) 1992-07-02 1993-06-15 Process for de-inking recycled paper pulp

Country Status (8)

Country Link
US (1) US5429716A (no)
EP (2) EP0777011A3 (no)
JP (1) JP2638430B2 (no)
CA (1) CA2099679C (no)
FI (1) FI933066A (no)
GB (1) GB9214041D0 (no)
NO (1) NO301722B1 (no)
ZA (1) ZA934246B (no)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9212926D0 (en) * 1992-06-18 1992-07-29 Morton Int Inc Method of bleaching paper pulp
GB9214041D0 (en) 1992-07-02 1992-08-12 Morton Int Inc Process for de-inking recycled paper pulp
US6001218A (en) 1994-06-29 1999-12-14 Kimberly-Clark Worldwide, Inc. Production of soft paper products from old newspaper
US6074527A (en) 1994-06-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Production of soft paper products from coarse cellulosic fibers
US5582681A (en) 1994-06-29 1996-12-10 Kimberly-Clark Corporation Production of soft paper products from old newspaper
US5882476A (en) * 1995-05-05 1999-03-16 Solvay Minerals, Inc. Deinking printed wastepaper using alkaline solution containing sodium sulfite and sodium carbonate
US6296736B1 (en) 1997-10-30 2001-10-02 Kimberly-Clark Worldwide, Inc. Process for modifying pulp from recycled newspapers
US6387210B1 (en) 1998-09-30 2002-05-14 Kimberly-Clark Worldwide, Inc. Method of making sanitary paper product from coarse fibers
EP1031657A1 (en) * 1999-02-25 2000-08-30 Degussa-Hüls Aktiengesellschaft A method for bleaching secondary fibres
JP2003073987A (ja) * 2001-09-03 2003-03-12 Oji Paper Co Ltd 印刷古紙の中性脱墨パルプ化方法
DE60301446T2 (de) * 2002-06-28 2006-06-14 Rohm & Haas Verfahren zur Aufhellung von Pulpe mit Hydrosulfitlösung
EP1418269B1 (en) * 2002-11-05 2009-02-11 Rohm And Haas Company Method for brightening virgin mechanical pulp
US20040211533A1 (en) * 2003-04-28 2004-10-28 Qiang Huang Method for bleaching and color stripping recycled fibers
US7169257B2 (en) * 2003-11-12 2007-01-30 Kemira Chemicals, Inc. Method of deinking waste paper using a reduced alkali system
AU2005227634A1 (en) * 2004-03-23 2005-10-13 Imerys Pigments, Inc. Effective reductive bleaching of mineral slurries
CA2522144A1 (en) * 2004-10-15 2006-04-15 Rohm And Haas Company Method for bleaching wood fibers
BRPI0703514A (pt) * 2006-09-01 2008-04-22 Rohm & Haas método para lixiviação e formação de brilho em argilas de caulim
US8034203B2 (en) 2007-04-13 2011-10-11 United States Gypsum Company Gypsum wallboard with improved nail pull strength and the method for making same
US8133351B2 (en) * 2008-07-09 2012-03-13 Nalco Company Deinking a cellulosic substrate using magnesium hydroxide
US9932709B2 (en) * 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
CN106979929B (zh) * 2016-01-19 2020-05-19 中国制浆造纸研究院有限公司 一种快速测定溶解浆反应性能的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA719622A (en) * 1965-10-12 U. Hossain Shafi Deinking of newspapers and other waste paper
GB1012527A (en) * 1962-12-07 1965-12-08 Abitibi Power & Paper Co De-inking of newspapers and other waste paper
FR2280864A1 (fr) * 1974-07-29 1976-02-27 Genoud & Cie Ets Briquet a gaz a jeter
LU76021A1 (no) * 1976-10-15 1978-05-16
DE3118192A1 (de) * 1981-05-08 1982-11-25 Basf Ag, 6700 Ludwigshafen Verfahren zum deinken von altpapier
DE3309956C1 (de) * 1983-03-19 1984-07-12 Degussa Ag, 6000 Frankfurt Verfahren zum Bleichen von Papierrohstoffen
SE457647B (sv) * 1987-06-24 1989-01-16 Eka Nobel Ab Saett vid blekning av material med ditionitloesning
FR2639371B1 (fr) * 1988-11-24 1995-04-14 Atochem Procede de blanchiment de pates desencrees
DE3902423A1 (de) * 1989-01-27 1990-08-02 Degussa Verfahren zur bleiche von faserstoffen zur papierherstellung
GB9214041D0 (en) 1992-07-02 1992-08-12 Morton Int Inc Process for de-inking recycled paper pulp

Also Published As

Publication number Publication date
NO932406L (no) 1994-01-03
FI933066A (fi) 1994-01-03
FI933066A0 (fi) 1993-07-02
NO301722B1 (no) 1997-12-01
JPH0673683A (ja) 1994-03-15
EP0577396A1 (en) 1994-01-05
NO932406D0 (no) 1993-07-01
GB9214041D0 (en) 1992-08-12
CA2099679A1 (en) 1994-01-03
EP0777011A3 (en) 1997-09-17
CA2099679C (en) 1997-06-03
JP2638430B2 (ja) 1997-08-06
EP0777011A2 (en) 1997-06-04
US5429716A (en) 1995-07-04

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