SE7811866L - PROCEDURE FOR THE RECYCLING OF CELLULOSA FIBERS FROM A RAVARA consisting of recycled paper and the like - Google Patents

PROCEDURE FOR THE RECYCLING OF CELLULOSA FIBERS FROM A RAVARA consisting of recycled paper and the like

Info

Publication number
SE7811866L
SE7811866L SE7811866A SE7811866A SE7811866L SE 7811866 L SE7811866 L SE 7811866L SE 7811866 A SE7811866 A SE 7811866A SE 7811866 A SE7811866 A SE 7811866A SE 7811866 L SE7811866 L SE 7811866L
Authority
SE
Sweden
Prior art keywords
fraction
fibres
rich
enriched
separated
Prior art date
Application number
SE7811866A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE431570B (en
Inventor
H Forsblom
F Jakobson
Original Assignee
Celleco Ab
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 Celleco Ab filed Critical Celleco Ab
Priority to SE7811866A priority Critical patent/SE431570B/en
Priority to GB7939081A priority patent/GB2036603B/en
Priority to DE19792946160 priority patent/DE2946160A1/en
Priority to FR7928376A priority patent/FR2441680A1/en
Priority to IT2734279A priority patent/IT1127240B/en
Publication of SE7811866L publication Critical patent/SE7811866L/en
Publication of SE431570B publication Critical patent/SE431570B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/70—Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation
    • 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
    • D21B1/12—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
    • 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)

Abstract

In a method of recovering cellulose fibres from waste paper etc., a dispersion of the raw material in water is separated by flotation into a first fraction, rich in fibres, and a second fraction, enriched in hydrophobic impurities, mainly printing ink, and the second fraction undergoes further treatment including separation by sieving into one fraction, rich in fibres, which is recirculated to the flotation stage, and another fraction which is further enriched in hydrophobic impurities and further purified. As shown, the second fraction from the flotation stage can be separated by a hydrocyclone separator plant into a fraction rich in fibres, which is further separated by sieving, a fraction enriched with hydrophobic impurities which is mixed with the fraction having passed through the sieve, for further purification, and a third fraction of heavy impurities, which is rejected. <IMAGE>
SE7811866A 1978-11-17 1978-11-17 PROCEDURE FOR RECOVERY OF CELLULOSA FIBERS FROM RECOVERY PAPERS SE431570B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE7811866A SE431570B (en) 1978-11-17 1978-11-17 PROCEDURE FOR RECOVERY OF CELLULOSA FIBERS FROM RECOVERY PAPERS
GB7939081A GB2036603B (en) 1978-11-17 1979-11-12 Recovering cellulose fibres from waste material
DE19792946160 DE2946160A1 (en) 1978-11-17 1979-11-15 METHOD FOR RECOVERY OF CELLULOSE FIBERS FROM RAW MATERIAL IN THE FORM OF PAPER AND THE LIKE DISEASE
FR7928376A FR2441680A1 (en) 1978-11-17 1979-11-16 PROCESS FOR RECOVERING CELLULOSIC FIBERS FROM RAW MATERIAL SUCH AS OLD PAPER
IT2734279A IT1127240B (en) 1978-11-17 1979-11-16 METHOD FOR THE RECOVERY OF CELLULOSE FIBERS FROM A RAW MATERIAL CONSTITUTED FROM WASTE PAPER AND SIMILAR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7811866A SE431570B (en) 1978-11-17 1978-11-17 PROCEDURE FOR RECOVERY OF CELLULOSA FIBERS FROM RECOVERY PAPERS

Publications (2)

Publication Number Publication Date
SE7811866L true SE7811866L (en) 1980-05-18
SE431570B SE431570B (en) 1984-02-13

Family

ID=20336388

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7811866A SE431570B (en) 1978-11-17 1978-11-17 PROCEDURE FOR RECOVERY OF CELLULOSA FIBERS FROM RECOVERY PAPERS

Country Status (5)

Country Link
DE (1) DE2946160A1 (en)
FR (1) FR2441680A1 (en)
GB (1) GB2036603B (en)
IT (1) IT1127240B (en)
SE (1) SE431570B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1155310B (en) * 1982-04-19 1987-01-28 Jean Marie Clement PROCESS FOR THE RECYCLING PROCESS OF PAPER PRINTED FROM MACERO
DE4034054C1 (en) * 1990-10-26 1992-04-02 Feldmuehle Ag, 4000 Duesseldorf, De
DE4238336A1 (en) * 1992-11-13 1994-05-19 Voith Gmbh J M Used paper suspension cleaning process and appts. - has thickener or washer for sludge from flotation unit to be returned to the flotation stage
DE19702060A1 (en) * 1997-01-22 1998-07-23 Voith Sulzer Stoffaufbereitung Separation of printing ink from paper fibre suspension
DE19733059C2 (en) * 1997-07-31 1999-09-02 Voith Sulzer Stoffaufbereitung Method and device for removing solids from an aqueous fiber suspension
DE19806734A1 (en) * 1998-01-23 1998-09-17 Voith Sulzer Papiertech Patent Flotation cleaning of fibre suspensions especially for processing used paper materials, for recycling
ATE237023T1 (en) 1998-01-23 2003-04-15 Voith Paper Patent Gmbh METHOD FOR REMOVAL OF FINE IMPURITIES FROM A FIBER SUSPENSION
DE10015355A1 (en) * 2000-03-28 2001-10-04 Voith Paper Patent Gmbh Removal of fine- and micro-sticky particles from suspensions of waste paper fibers, combines fine fractionation screening with froth flotation
DE10116368A1 (en) * 2001-04-02 2002-10-10 Voith Paper Patent Gmbh Process for processing waste paper containing wood pulp
AT412288B (en) * 2003-02-25 2004-12-27 Andritz Ag Maschf METHOD AND DEVICE FOR VENTILATING SUSPENSIONS
AT501868B1 (en) * 2005-06-13 2007-04-15 Andritz Ag Maschf METHOD FOR THE RECYCLING OF FILLERS AND PIGMENTS OF PAPER, PAPER OR CARTON MANUFACTURING
DE102008009134A1 (en) * 2008-02-14 2009-08-20 Voith Patent Gmbh Removing impurities from aqueous fibrous material suspension formed from printed waste paper, comprises forming fine fraction and rough fraction from the material suspension by fractionating, and treating the fine fraction in a floatation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL278502A (en) * 1961-05-18 1900-01-01
DE2610581B1 (en) * 1976-03-13 1977-08-11 Voith Gmbh J M METHOD AND DEVICE FOR THE OBTAINING RELATIVELY PURE FIBER SUSPENSIONS IN THE PROCESSING OF WASTE PAPER

Also Published As

Publication number Publication date
GB2036603B (en) 1982-08-04
DE2946160A1 (en) 1980-05-29
GB2036603A (en) 1980-07-02
FR2441680A1 (en) 1980-06-13
IT1127240B (en) 1986-05-21
SE431570B (en) 1984-02-13
IT7927342A0 (en) 1979-11-16
FR2441680B1 (en) 1981-12-24

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