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
Links
- 238000000034 method Methods 0.000 title 1
- 239000010893 paper waste Substances 0.000 title 1
- 238000011268 retreatment Methods 0.000 title 1
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)
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)
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 |
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 |
-
1978
- 1978-02-09 DE DE2805445A patent/DE2805445C2/de not_active Expired
- 1978-12-05 AT AT867778A patent/AT367116B/de not_active IP Right Cessation
-
1979
- 1979-01-17 GB GB7901663A patent/GB2014209B/en not_active Expired
- 1979-01-26 ES ES477183A patent/ES477183A1/es not_active Expired
- 1979-02-06 SE SE7901031A patent/SE447493B/sv not_active IP Right Cessation
- 1979-02-07 IT IT1995479A patent/IT1110272B/it active
- 1979-02-07 FI FI790414A patent/FI68094C/fi not_active IP Right Cessation
- 1979-02-09 FR FR7903809A patent/FR2416975A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2805445B1 (de) | 1978-09-28 |
FI790414A (fi) | 1979-08-10 |
ES477183A1 (es) | 1979-07-16 |
FR2416975A1 (fr) | 1979-09-07 |
IT1110272B (it) | 1985-12-23 |
AT367116B (de) | 1982-06-11 |
GB2014209B (en) | 1983-01-12 |
FI68094B (fi) | 1985-03-29 |
GB2014209A (en) | 1979-08-22 |
SE7901031L (sv) | 1979-08-10 |
ATA867778A (de) | 1981-10-15 |
SE447493B (sv) | 1986-11-17 |
DE2805445C2 (de) | 1979-06-07 |
FI68094C (fi) | 1985-07-10 |
FR2416975B3 (it) | 1981-12-11 |
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