IT7919954A0 - Procedimento per il ritrattamento di carta straccia preziosa. - Google Patents

Procedimento per il ritrattamento di carta straccia preziosa.

Info

Publication number
IT7919954A0
IT7919954A0 IT7919954A IT1995479A IT7919954A0 IT 7919954 A0 IT7919954 A0 IT 7919954A0 IT 7919954 A IT7919954 A IT 7919954A IT 1995479 A IT1995479 A IT 1995479A IT 7919954 A0 IT7919954 A0 IT 7919954A0
Authority
IT
Italy
Prior art keywords
retreatment
procedure
waste paper
precious
precious waste
Prior art date
Application number
IT7919954A
Other languages
English (en)
Other versions
IT1110272B (it
Original Assignee
Voith Gmbh J M
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 Voith Gmbh J M filed Critical Voith Gmbh J M
Publication of IT7919954A0 publication Critical patent/IT7919954A0/it
Application granted granted Critical
Publication of IT1110272B publication Critical patent/IT1110272B/it

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
    • 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
    • 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)
IT1995479A 1978-02-09 1979-02-07 Procedimento per il ritrattamento di carta straccia preziosa IT1110272B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2805445A DE2805445C2 (de) 1978-02-09 1978-02-09 Verfahren zur Wiederaufbereitung von hochwertigem Altpapier

Publications (2)

Publication Number Publication Date
IT7919954A0 true IT7919954A0 (it) 1979-02-07
IT1110272B IT1110272B (it) 1985-12-23

Family

ID=6031530

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1995479A IT1110272B (it) 1978-02-09 1979-02-07 Procedimento per il ritrattamento di carta straccia preziosa

Country Status (8)

Country Link
AT (1) AT367116B (it)
DE (1) DE2805445C2 (it)
ES (1) ES477183A1 (it)
FI (1) FI68094C (it)
FR (1) FR2416975A1 (it)
GB (1) GB2014209B (it)
IT (1) IT1110272B (it)
SE (1) SE447493B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947862C2 (de) * 1979-11-28 1982-04-01 J.M. Voith Gmbh, 7920 Heidenheim Verfahren und Anlage zur Herstellung einer Faserstoffsuspension aus Altpapier
DE3305131A1 (de) * 1983-02-15 1984-08-16 Degussa Ag, 6000 Frankfurt Verfahren zum entfaerben von altpapier
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers
SE501309C2 (sv) * 1993-05-28 1995-01-09 Klippans Finpappersbruk Ab Massaframställning genom uppslutning av en blandning av cellulosabaserat returmaterial och råträ
US6074527A (en) 1994-06-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Production of soft paper products from coarse cellulosic fibers
US6001218A (en) 1994-06-29 1999-12-14 Kimberly-Clark Worldwide, Inc. Production of soft paper products from old newspaper
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

Also Published As

Publication number Publication date
SE7901031L (sv) 1979-08-10
ATA867778A (de) 1981-10-15
DE2805445B1 (de) 1978-09-28
FR2416975A1 (fr) 1979-09-07
FI790414A (fi) 1979-08-10
GB2014209B (en) 1983-01-12
DE2805445C2 (de) 1979-06-07
AT367116B (de) 1982-06-11
ES477183A1 (es) 1979-07-16
IT1110272B (it) 1985-12-23
FI68094C (fi) 1985-07-10
FR2416975B3 (it) 1981-12-11
GB2014209A (en) 1979-08-22
FI68094B (fi) 1985-03-29
SE447493B (sv) 1986-11-17

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