GB942177A - The treatment of waste paper - Google Patents

The treatment of waste paper

Info

Publication number
GB942177A
GB942177A GB555362A GB555362A GB942177A GB 942177 A GB942177 A GB 942177A GB 555362 A GB555362 A GB 555362A GB 555362 A GB555362 A GB 555362A GB 942177 A GB942177 A GB 942177A
Authority
GB
United Kingdom
Prior art keywords
refiner
waste paper
unravelled
unravelling
carried out
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.)
Expired
Application number
GB555362A
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.)
Battelle Institut eV
Original Assignee
Battelle Institut eV
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 Battelle Institut eV filed Critical Battelle Institut eV
Publication of GB942177A publication Critical patent/GB942177A/en
Expired legal-status Critical Current

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
    • 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
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D21B1/08—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/32—Hammer mills
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Crushing And Grinding (AREA)

Abstract

Waste paper is unravelled dry but only to the extent in which it consists substantially of a material in which the individual fibres are not unravelled from one another be remain as fibre clusters, and wetted immediately afterwards to a dry content of 20-30% so that there results a finely crumbled flowable material that can be further diluted with water. If the unravelling is carried out in a disc refiner the water may be injected into the refiner so that it wets the material after it has left the milling zone, but before it leaves the casing of the refiner. If the unravelling is carried out in a cross-beater mill, the material may then be wetted in a disc mill having the distance between its teeth or pegs great enough to avoid further mechanical grinding.
GB555362A 1961-03-30 1962-02-13 The treatment of waste paper Expired GB942177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB61969A DE1246382B (en) 1961-03-30 1961-03-30 Process for the digestion of waste paper

Publications (1)

Publication Number Publication Date
GB942177A true GB942177A (en) 1963-11-20

Family

ID=6973407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB555362A Expired GB942177A (en) 1961-03-30 1962-02-13 The treatment of waste paper

Country Status (3)

Country Link
CH (1) CH393066A (en)
DE (1) DE1246382B (en)
GB (1) GB942177A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1247892A2 (en) * 2001-04-02 2002-10-09 Voith Paper Patent GmbH Treatment of wood-containing waste paper

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE54867B1 (en) * 1982-12-20 1990-02-28 Kimberly Clark Co Process for dry deinking of secondary fiber sources
US5011091A (en) * 1989-08-10 1991-04-30 Haybuster Manufacturing Inc. Cellulose fiberization apparatus
DE102005029109A1 (en) * 2005-06-23 2007-01-04 Süd-Chemie AG Process for increasing the mechanical resistance of transition metal-containing catalysts
DE102011120630A1 (en) 2011-12-09 2013-06-13 Aerocycle Gmbh Process for recycling waste paper
DE102023106230A1 (en) * 2023-03-13 2024-09-19 Andritz Küsters Gmbh Method and device for producing a fiber web

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734685A (en) * 1956-02-14 Tomizo saito
DE364565C (en) * 1917-11-07 1922-11-27 Exportingenieure Fuer Papier U Process for the production of paper, cardboard and. like
DE584560C (en) * 1929-03-14 1933-09-21 Bauer Brothers Company Device for the production of wood pulp with relatively long and essentially uncut fibers from small pieces of wood or other fiber material
US2807054A (en) * 1947-04-18 1957-09-24 Kimberly Clark Co Fluff making method
DE1097802B (en) * 1957-07-30 1961-01-19 Condux Werk Process for dissolving waste fibers, especially waste paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1247892A2 (en) * 2001-04-02 2002-10-09 Voith Paper Patent GmbH Treatment of wood-containing waste paper
EP1247892A3 (en) * 2001-04-02 2003-10-15 Voith Paper Patent GmbH Treatment of wood-containing waste paper

Also Published As

Publication number Publication date
CH393066A (en) 1965-05-31
DE1246382B (en) 1967-08-03

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