ES483485A1 - Utilizing waste paper - Google Patents

Utilizing waste paper

Info

Publication number
ES483485A1
ES483485A1 ES483485A ES483485A ES483485A1 ES 483485 A1 ES483485 A1 ES 483485A1 ES 483485 A ES483485 A ES 483485A ES 483485 A ES483485 A ES 483485A ES 483485 A1 ES483485 A1 ES 483485A1
Authority
ES
Spain
Prior art keywords
waste paper
long fiber
fractions
utilizing waste
milling
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
ES483485A
Other languages
Spanish (es)
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.)
Vyskumny ustav papieru a celulozy
Original Assignee
Vyskumny ustav papieru a celulozy
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 Vyskumny ustav papieru a celulozy filed Critical Vyskumny ustav papieru a celulozy
Publication of ES483485A1 publication Critical patent/ES483485A1/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
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

Short fibers obtained by fractionating waste paper reduce in the course of processing of waste paper the bonding properties of long fiber fractions. According to this invention the short fiber fractions are first separated from the long fiber fractions, the long fiber fractions regenerated by milling, advantageously by fibrillation milling, and subsequently at least part of the earlier separated short fiber fraction added to the regenerated long fiber fraction for further processing.
ES483485A 1978-12-06 1979-08-20 Utilizing waste paper Expired ES483485A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS788056A CS220858B1 (en) 1978-12-06 1978-12-06 Method of treating the waste paper

Publications (1)

Publication Number Publication Date
ES483485A1 true ES483485A1 (en) 1980-03-01

Family

ID=5430642

Family Applications (1)

Application Number Title Priority Date Filing Date
ES483485A Expired ES483485A1 (en) 1978-12-06 1979-08-20 Utilizing waste paper

Country Status (9)

Country Link
JP (1) JPS5580588A (en)
CS (1) CS220858B1 (en)
DD (1) DD145293A1 (en)
DE (1) DE2926185A1 (en)
ES (1) ES483485A1 (en)
FR (1) FR2443528A1 (en)
GB (1) GB2037340A (en)
IT (1) IT1125398B (en)
NL (1) NL7904845A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536337C1 (en) * 1985-10-11 1987-05-27 Voith Gmbh J M Process and device for stock preparation for ash-containing raw material in waste paper processing
EP0582042A1 (en) * 1992-07-23 1994-02-09 J.M. Voith GmbH Process for modifying the properties of deinked waste paper pulps, especially the fiber classification and installation for carrying out the process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331455A (en) * 1937-06-09 1943-10-12 Cowles Co Process for the preparation of paper stock
SE7613057L (en) * 1976-03-17 1977-09-18 Black Clawson Co SETS AND APPARATUS FOR RECYCLING PAPER FIBERS FROM WASTE MATERIAL CONTAINING PAPER
DE2759113C2 (en) * 1977-12-30 1979-05-17 J.M. Voith Gmbh, 7920 Heidenheim Process and system for processing waste paper
DE2836186C2 (en) * 1978-08-18 1980-02-07 J.M. Voith Gmbh, 7920 Heidenheim Process and device for ash removal from pulp suspensions in waste paper processing
US4676910A (en) * 1986-08-11 1987-06-30 Nalco Chemical Company Means of controlling precipitation of Na2 SO4 from solutions of NaHSO3 oxygen scavengers

Also Published As

Publication number Publication date
DE2926185A1 (en) 1980-06-26
FR2443528A1 (en) 1980-07-04
NL7904845A (en) 1980-06-10
IT7923964A0 (en) 1979-06-28
CS220858B1 (en) 1983-04-29
JPS5580588A (en) 1980-06-17
DD145293A1 (en) 1980-12-03
IT1125398B (en) 1986-05-14
GB2037340A (en) 1980-07-09

Similar Documents

Publication Publication Date Title
ES485451A1 (en) Apparatus for processing low-grade waste paper
DE69029033D1 (en) POLYSACCHARIDE SEPARATING GELS AND GEL SYSTEMS FOR ELECTROPHORESES USING COLLECTING GEL
IT8027025A0 (en) FIBER WASTE. CORONA EFFECT DISCHARGE ELECTRODE FOR THE SEPARATION OF
ATE28211T1 (en) STABILIZED ADHESIVES.
FR2422753A1 (en) FIBER SHEET AND ITS APPLICATIONS
ES8402290A1 (en) Quaternised 6,11-dihydro-dibenzo-(b,e)-thiepin-11-N-alkyl-norscopin ethers and process for their preparation.
IT1170098B (en) DEHYDRATION MACHINE FOR CELLULOSE, SLUDGE OR ANALOGUE FIBROUS MATERIALS
DZ523A1 (en) Improvement in fiber formation techniques including centrifugation.
DK321884A (en) SUBSTITUTED 2- (MONO ANALYZED (3,4-, 4,5- AND 5,6-) PYRIDYLALKYLENSULPHINYL) -BENZIMIDAZOLES
NL7808908A (en) METHOD OF SEPARATING THE FIBERS OF THE CELLULOSE COMPONENT OF LIGNOCELLULOSIS.
DE3564769D1 (en) Process for separating oil-in-water emulsions
FR2574427B1 (en) PHANEROCHAETE CHRYSOSPORIUM STRAIN MICROORGANISMS AND THEIR USE
ES483485A1 (en) Utilizing waste paper
FR2575466B1 (en) NOVEL HEXACOORDIN SILICON COMPLEXES, THEIR PREPARATION PROCESS AND THEIR APPLICATION
UA19151A (en) A process for preparation of optically active (+)-4- demethoxydaunomicinon
SE7910628L (en) MECHANICAL ROAD PROCEDURES OF THE TREE TREATMENT
FI853228L (en) NYA -BUTYROLAKTAMER, DERAS FARMACEUTISKT AKTIVA KOMPOSITIONER, FOERFARANDEN FOER DERAS FRAMSTAELLNING OCH DERAS ANVAENDNING SOM LAEKEMEDEL.
CA1268767C (en)
IT8123344A0 (en) SYSTEM FOR COATING CHIPBOARD PANELS AND SIMILAR FIBER PANELS WITH FINISHING SHEETS CUT TO CORRESPONDING SIZES.
NO163622C (en) PROCEDURE FOR AA IMPROVE WORKABILITY BY REDUCING THE VISCOSITY OF MIXTURES BASED ON UVULCANIZED NATURAL RUBBER.
BR0004994A (en) Process of filtering a collection of samples, filter arrangement to filter a collection of samples, and, computer program product for a filter arrangement
FI97058B (en) Method for isolating and purifying HIV glycoprotein GP 160 produced in cells
SE7804602L (en) DEFIBRATION METHOD AND DEVICE
BR8205911A (en) LAVRA PROCESS, ASH SEPARATION AND PARTIAL DEHUMIDIFICATION OF WOODY AND FIBROUS PUTS
FI841760A (en) COSMETIC PRODUCT.