FI68094C - Foerfarande foer aoterupparbetning av hoegvaerdigt avfallspapper - Google Patents
Foerfarande foer aoterupparbetning av hoegvaerdigt avfallspapper Download PDFInfo
- Publication number
- FI68094C FI68094C FI790414A FI790414A FI68094C FI 68094 C FI68094 C FI 68094C FI 790414 A FI790414 A FI 790414A FI 790414 A FI790414 A FI 790414A FI 68094 C FI68094 C FI 68094C
- Authority
- FI
- Finland
- Prior art keywords
- flotation
- chemicals
- cooking
- waste paper
- wet
- Prior art date
Links
- 238000005188 flotation Methods 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 23
- 239000000126 substance Substances 0.000 claims description 23
- 238000010411 cooking Methods 0.000 claims description 20
- 239000010893 paper waste Substances 0.000 claims description 14
- 230000002378 acidificating effect Effects 0.000 claims description 10
- 239000004848 polyfunctional curative Substances 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 15
- 239000000123 paper Substances 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000002253 acid Substances 0.000 description 6
- 239000011087 paperboard Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910019093 NaOCl Inorganic materials 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical class OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2805445A DE2805445C2 (de) | 1978-02-09 | 1978-02-09 | Verfahren zur Wiederaufbereitung von hochwertigem Altpapier |
| DE2805445 | 1978-02-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI790414A FI790414A (fi) | 1979-08-10 |
| FI68094B FI68094B (fi) | 1985-03-29 |
| FI68094C true FI68094C (fi) | 1985-07-10 |
Family
ID=6031530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI790414A FI68094C (fi) | 1978-02-09 | 1979-02-07 | Foerfarande foer aoterupparbetning av hoegvaerdigt avfallspapper |
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 |
| 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 |
-
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 |
|---|---|
| FR2416975B3 (it) | 1981-12-11 |
| DE2805445C2 (de) | 1979-06-07 |
| AT367116B (de) | 1982-06-11 |
| FR2416975A1 (fr) | 1979-09-07 |
| GB2014209A (en) | 1979-08-22 |
| SE447493B (sv) | 1986-11-17 |
| IT7919954A0 (it) | 1979-02-07 |
| FI68094B (fi) | 1985-03-29 |
| SE7901031L (sv) | 1979-08-10 |
| ES477183A1 (es) | 1979-07-16 |
| IT1110272B (it) | 1985-12-23 |
| DE2805445B1 (de) | 1978-09-28 |
| ATA867778A (de) | 1981-10-15 |
| FI790414A (fi) | 1979-08-10 |
| GB2014209B (en) | 1983-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: J.M. VOITH GMBH |