IT1125398B - Metodo per l'utilizzazione di scarti che hanno origine dal frazionamento di carta straccia nella fabbricazione della carta - Google Patents
Metodo per l'utilizzazione di scarti che hanno origine dal frazionamento di carta straccia nella fabbricazione della cartaInfo
- Publication number
- IT1125398B IT1125398B IT2396479A IT2396479A IT1125398B IT 1125398 B IT1125398 B IT 1125398B IT 2396479 A IT2396479 A IT 2396479A IT 2396479 A IT2396479 A IT 2396479A IT 1125398 B IT1125398 B IT 1125398B
- Authority
- IT
- Italy
- Prior art keywords
- waste
- paper
- fractionation
- originate
- manufacture
- Prior art date
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)
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 (2)
Publication Number | Publication Date |
---|---|
IT7923964A0 IT7923964A0 (it) | 1979-06-28 |
IT1125398B true IT1125398B (it) | 1986-05-14 |
Family
ID=5430642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2396479A IT1125398B (it) | 1978-12-06 | 1979-06-28 | Metodo per l'utilizzazione di scarti che hanno origine dal frazionamento di carta straccia nella fabbricazione della carta |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5580588A (es) |
CS (1) | CS220858B1 (es) |
DD (1) | DD145293A1 (es) |
DE (1) | DE2926185A1 (es) |
ES (1) | ES483485A1 (es) |
FR (1) | FR2443528A1 (es) |
GB (1) | GB2037340A (es) |
IT (1) | IT1125398B (es) |
NL (1) | NL7904845A (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3536337C1 (de) * | 1985-10-11 | 1987-05-27 | Voith Gmbh J M | Verfahren und Einrichtung zur Stoffaufbereitung bei aschehaltigem Ausgangsstoff in der Altpapieraufbereitung |
EP0582042A1 (de) * | 1992-07-23 | 1994-02-09 | J.M. Voith GmbH | Verfahren zur Veränderung der Eigenschaften, insbesondere der Faserfraktion von deinkten Altpapierstoffen und Maschinensatz zur Durchführung dieses Verfahrens |
Family Cites Families (5)
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 (sv) * | 1976-03-17 | 1977-09-18 | Black Clawson Co | Sett och apparatur for atervinning av pappersfibrer fran avfallsmaterial, som innehaller papper |
DE2759113C2 (de) * | 1977-12-30 | 1979-05-17 | J.M. Voith Gmbh, 7920 Heidenheim | Verfahren und Anlage zur Aufbereitung von Altpapier |
DE2836186C2 (de) * | 1978-08-18 | 1980-02-07 | J.M. Voith Gmbh, 7920 Heidenheim | Verfahren und Vorrichtung zur Entaschung von Faserstoffsuspensionen bei der Altpapieraufbereitung |
US4676910A (en) * | 1986-08-11 | 1987-06-30 | Nalco Chemical Company | Means of controlling precipitation of Na2 SO4 from solutions of NaHSO3 oxygen scavengers |
-
1978
- 1978-12-06 CS CS788056A patent/CS220858B1/cs unknown
-
1979
- 1979-06-21 NL NL7904845A patent/NL7904845A/nl not_active Application Discontinuation
- 1979-06-28 DE DE19792926185 patent/DE2926185A1/de not_active Withdrawn
- 1979-06-28 IT IT2396479A patent/IT1125398B/it active
- 1979-08-06 DD DD79214822A patent/DD145293A1/de unknown
- 1979-08-07 GB GB7927549A patent/GB2037340A/en not_active Withdrawn
- 1979-08-20 ES ES483485A patent/ES483485A1/es not_active Expired
- 1979-10-12 FR FR7925509A patent/FR2443528A1/fr not_active Withdrawn
- 1979-12-04 JP JP15645479A patent/JPS5580588A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ES483485A1 (es) | 1980-03-01 |
FR2443528A1 (fr) | 1980-07-04 |
DD145293A1 (de) | 1980-12-03 |
IT7923964A0 (it) | 1979-06-28 |
NL7904845A (nl) | 1980-06-10 |
DE2926185A1 (de) | 1980-06-26 |
CS220858B1 (en) | 1983-04-29 |
GB2037340A (en) | 1980-07-09 |
JPS5580588A (en) | 1980-06-17 |
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