FR2446886A1 - PROCESS FOR PROCESSING OLD PAPERS - Google Patents

PROCESS FOR PROCESSING OLD PAPERS

Info

Publication number
FR2446886A1
FR2446886A1 FR8000949A FR8000949A FR2446886A1 FR 2446886 A1 FR2446886 A1 FR 2446886A1 FR 8000949 A FR8000949 A FR 8000949A FR 8000949 A FR8000949 A FR 8000949A FR 2446886 A1 FR2446886 A1 FR 2446886A1
Authority
FR
France
Prior art keywords
waste paper
processing old
old papers
papers
paper
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
FR8000949A
Other languages
French (fr)
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of FR2446886A1 publication Critical patent/FR2446886A1/en
Pending legal-status Critical Current

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
    • 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
    • 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

  • Paper (AREA)

Abstract

Procédé de traitement de vieux papiers dont un pourcentage élevé est constitué par du papier imprimé et/ou contenant du bois. On traite les vieux papiers par dissolution, pour les séparer en fibres distinctes, par séparation des particules colorantes, par flottation et enfin par blanchiment, cette dernière opération s'effectuant en plusieurs phases dont la première utilise un hypochlorite et la seconde un hydrosulfite de sodium (dithionite) ou de l'eau oxygénée. Procédé permettant d'obtenir des papiers de qualité supérieure en éliminant la coloration jaune-gris.Process for treating waste paper, a high percentage of which consists of printed paper and / or containing wood. Waste paper is treated by dissolution, to separate them into distinct fibers, by separation of the coloring particles, by flotation and finally by bleaching, the latter operation being carried out in several phases, the first of which uses a hypochlorite and the second a sodium hydrosulphite. (dithionite) or hydrogen peroxide. Process for obtaining superior quality papers by eliminating the yellow-gray coloration.

FR8000949A 1979-01-19 1980-01-14 PROCESS FOR PROCESSING OLD PAPERS Pending FR2446886A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2901942A DE2901942B1 (en) 1979-01-19 1979-01-19 Process for recycling waste paper

Publications (1)

Publication Number Publication Date
FR2446886A1 true FR2446886A1 (en) 1980-08-14

Family

ID=6060894

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000949A Pending FR2446886A1 (en) 1979-01-19 1980-01-14 PROCESS FOR PROCESSING OLD PAPERS

Country Status (9)

Country Link
JP (1) JPS5598990A (en)
BE (1) BE881179A (en)
BR (1) BR5901789U (en)
DE (1) DE2901942B1 (en)
ES (1) ES487817A1 (en)
FR (1) FR2446886A1 (en)
GB (1) GB2040333A (en)
IT (1) IT7969513A0 (en)
NL (1) NL8000316A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522030A1 (en) * 1982-02-19 1983-08-26 Scherb Metenett Papeteries PROCESS FOR SELECTIVELY WHITENING PAPER PULP AND PAPER OBTAINED BY CARRYING OUT SAID METHOD

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510214A1 (en) * 1985-03-21 1986-09-25 J.M. Voith Gmbh, 7920 Heidenheim METHOD FOR PROCESSING WASTE PAPER
JPS6297993A (en) * 1985-10-21 1987-05-07 株式会社　フジモトポルコン Erasion of fluorescent reaction in old paper
DE3610940A1 (en) * 1986-03-04 1987-09-10 Escher Wyss Gmbh HIGH TEMPERATURE HIGH CONSISTENCY FAST WHITE
JPH03294589A (en) * 1990-04-09 1991-12-25 Sanyo Kokusaku Pulp Co Ltd Treatment of unclassified waste information-recording paper
JPH0491284A (en) * 1990-08-03 1992-03-24 Honshu Paper Co Ltd Method for eliminating fluorescent reaction in waste paper
AT400155B (en) * 1991-04-29 1995-10-25 Chemiefaser Lenzing Ag Process for chlorineless decolorization of pulp-dyed papers and carbonless copy papers
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
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
JP4922495B2 (en) * 2001-03-13 2012-04-25 光洋サーモシステム株式会社 Transport device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506802A (en) * 1973-05-30 1975-01-24
JPS52148203A (en) * 1976-06-01 1977-12-09 Kogyo Gijutsuin Process for bleaching pulp
DE2816148B1 (en) * 1978-04-14 1978-10-12 Voith Gmbh J M Procedures for recycling paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522030A1 (en) * 1982-02-19 1983-08-26 Scherb Metenett Papeteries PROCESS FOR SELECTIVELY WHITENING PAPER PULP AND PAPER OBTAINED BY CARRYING OUT SAID METHOD
EP0087377A1 (en) * 1982-02-19 1983-08-31 Papeteries Matussiere Et Forest Process for selective bleaching of paper pulp obtained by recovery of illustrated magazines and papers obtained from this pulp

Also Published As

Publication number Publication date
BR5901789U (en) 1980-09-02
DE2901942B1 (en) 1979-08-16
NL8000316A (en) 1980-07-22
GB2040333A (en) 1980-08-28
IT7969513A0 (en) 1979-12-31
ES487817A1 (en) 1980-06-16
BE881179A (en) 1980-05-16
JPS5598990A (en) 1980-07-28

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